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7 years ago[NewGVN] Fix a consistent order for phi nodes operands.
Davide Italiano [Tue, 9 May 2017 16:58:28 +0000 (16:58 +0000)]
[NewGVN] Fix a consistent order for phi nodes operands.

The way we currently define congruency for two PHIExpression(s) is:

1) The operands to the phi functions are congruent
2) The PHIs are defined in the same BasicBlock.

NewGVN works under the assumption that phi operands are in predecessor
order, or at least in some consistent order. OTOH, is valid IR:

patatino:
  %meh = phi i16 [ %0, %winky ], [ %conv1, %tinky ]
  %banana = phi i16 [ %0, %tinky ], [ %conv1, %winky ]
  br label %end

and the in-memory representations of the two SSA registers have an
inconsistent order. This violation of NewGVN assumptions results into
two PHIs found congruent when they're not. While we think it's useful
to have always a consistent order enforced, let's fix this in NewGVN
sorting uses in predecessor order before creating a PHI expression.

Differential Revision:  https://reviews.llvm.org/D32990

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302552 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[APInt] Remove return value from tcFullMultiply.
Craig Topper [Tue, 9 May 2017 16:47:33 +0000 (16:47 +0000)]
[APInt] Remove return value from tcFullMultiply.

The description says it returns the number of words needed to represent the results. But the way it was coded it always returns (lhsWords + rhsWords) or (lhsWords + rhsWords - 1). But the result could be even smaller than that and it wouldn't tell you.

No one uses the result today so rather than try to fix it, just remove it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302551 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoNewGVN: Make all of symbolic evaluation logically const.
Daniel Berlin [Tue, 9 May 2017 16:40:04 +0000 (16:40 +0000)]
NewGVN: Make all of symbolic evaluation logically const.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302550 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[X86] Add more patterns for BZHI isel
Craig Topper [Tue, 9 May 2017 16:32:11 +0000 (16:32 +0000)]
[X86] Add more patterns for BZHI isel

This patch adds more patterns that a reasonable person might write that can be compiled to BZHI.

This adds support for

(~0U >> (32 - b)) & a;

and

a << (32 - b) >> (32 - b);

This was inspired by the code in APInt::clearUnusedBits.

This can pass an index of 32 to the bzhi instruction which a quick test of Haswell hardware shows will not mask any bits. Though the description text in the Intel manual says the "index is saturated to OperandSize-1". The pseudocode in the same manual indicates no bits will be zeroed for this case.

I think this is still missing cases where the subtract portion is an 8-bit operation.

Differential Revision: https://reviews.llvm.org/D32616

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302549 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[InstCombineCasts] Fix checks in sext->lshr->trunc pattern.
Sanjay Patel [Tue, 9 May 2017 16:24:59 +0000 (16:24 +0000)]
[InstCombineCasts] Fix checks in sext->lshr->trunc pattern.

The comment says to avoid the case where zero bits are shifted into the truncated value,
but the code checks that the shift is smaller than the truncated value instead of the
number of bits added by the sign extension. Fixing this allows a shift by more than the
value size to be introduced, which is undefined behavior, so the shift is capped at the
value size minus one, which has the expected behavior of filling the value with the sign
bit.

Patch by Jacob Young!

Differential Revision: https://reviews.llvm.org/D32285

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302548 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoVX512] Only look at lower bit in constant scalar masks
Guy Blank [Tue, 9 May 2017 16:16:48 +0000 (16:16 +0000)]
VX512] Only look at lower bit in constant scalar masks

for scalar masked instructions only the lower bit of the mask is relevant. so for constant masks we should either do an unmasked operation or no operation, depending on the value of the lower bit.
This patch handles cases where the lower bit is '1'.

Differential Revision: https://reviews.llvm.org/D32805

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302546 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRe-land "Use the frame index side table for byval and inalloca arguments"
Reid Kleckner [Tue, 9 May 2017 16:02:20 +0000 (16:02 +0000)]
Re-land "Use the frame index side table for byval and inalloca arguments"

This re-lands r302483. It was not the cause of PR32977.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302544 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRe-land "Don't add DBG_VALUE instructions for static allocas in dbg.declare"
Reid Kleckner [Tue, 9 May 2017 16:01:47 +0000 (16:01 +0000)]
Re-land "Don't add DBG_VALUE instructions for static allocas in dbg.declare"

This re-lands commit r302461. It was not the cause of PR32977.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302543 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Atomic] Remove IsStore/IsLoad in the interface, and pass the instruction instead...
Tim Shen [Tue, 9 May 2017 15:27:17 +0000 (15:27 +0000)]
[Atomic] Remove IsStore/IsLoad in the interface, and pass the instruction instead. NFC.

Now both emitLeadingFence and emitTrailingFence take the instruction
itself, instead of taking IsLoad/IsStore pairs.
Instruction::mayReadFromMemory and Instrucion::mayWriteToMemory are used
for determining those two booleans.

The instruction argument is also useful for later D32763, in
emitTrailingFence. For emitLeadingFence, it seems to have cleaner
interface with the proposed change.

Differential Revision: https://reviews.llvm.org/D32762

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302539 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAmend r302535; ifndef and ifdef are different, as it turns out.
Aaron Ballman [Tue, 9 May 2017 15:12:03 +0000 (15:12 +0000)]
Amend r302535; ifndef and ifdef are different, as it turns out.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302537 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoARMRegisterBankInfo.h requires LLVM_BUILD_GLOBAL_ISEL to be defined. If it is not...
Aaron Ballman [Tue, 9 May 2017 14:59:48 +0000 (14:59 +0000)]
ARMRegisterBankInfo.h requires LLVM_BUILD_GLOBAL_ISEL to be defined. If it is not defined, then ARMGenRegisterBank.inc is not table generated and the inclusion of this header causes the build to fail.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302535 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRevert r302469 "Make it illegal for two Functions to point to the same DISubprogram"
Hans Wennborg [Tue, 9 May 2017 14:44:15 +0000 (14:44 +0000)]
Revert r302469 "Make it illegal for two Functions to point to the same DISubprogram"

This caused PR32977.

Original commit message:

> Make it illegal for two Functions to point to the same DISubprogram
>
> As recently discussed on llvm-dev [1], this patch makes it illegal for
> two Functions to point to the same DISubprogram and updates
> FunctionCloner to also clone the debug info of a function to conform
> to the new requirement. To simplify the implementation it also factors
> out the creation of inlineAt locations from the Inliner into a
> general-purpose utility in DILocation.
>
> [1] http://lists.llvm.org/pipermail/llvm-dev/2017-May/112661.html
> <rdar://problem/31926379>
>
> Differential Revision: https://reviews.llvm.org/D32975

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302533 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[LV] Fix insertion point for shuffle vectors in first order recurrence
Anna Thomas [Tue, 9 May 2017 14:29:33 +0000 (14:29 +0000)]
[LV] Fix insertion point for shuffle vectors in first order recurrence

Summary:
In first order recurrence vectorization, when the previous value is a phi node, we need to
set the insertion point to the first non-phi node.
We can have the previous value being a phi node, due to the generation of new
IVs as part of trunc optimization [1].

[1] https://reviews.llvm.org/rL294967

Reviewers: mssimpso, mkuper

Subscribers: mzolotukhin, llvm-commits

Differential Revision: https://reviews.llvm.org/D32969

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302532 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRemoving a file that is not necessary (and was causing link diagnostics with MSVC...
Aaron Ballman [Tue, 9 May 2017 14:22:48 +0000 (14:22 +0000)]
Removing a file that is not necessary (and was causing link diagnostics with MSVC 2015); NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302531 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[X86][AVX512] Refine some avx512er intrinsics tests. NFC.
Guy Blank [Tue, 9 May 2017 14:03:51 +0000 (14:03 +0000)]
[X86][AVX512] Refine some avx512er intrinsics tests. NFC.

The modified tests should test the masked intrinsics.
Currently the mask is constant, which with a future patch (https://reviews.llvm.org/D32805) will cause the intrinsics to be replaced with an unmasked version.
This patch changes the constant mask to be a variable one.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302529 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAdd extra operand to CALLSEQ_START to keep frame part set up previously
Serge Pavlov [Tue, 9 May 2017 13:35:13 +0000 (13:35 +0000)]
Add extra operand to CALLSEQ_START to keep frame part set up previously

Using arguments with attribute inalloca creates problems for verification
of machine representation. This attribute instructs the backend that the
argument is prepared in stack prior to  CALLSEQ_START..CALLSEQ_END
sequence (see http://llvm.org/docs/InAlloca.htm for details). Frame size
stored in CALLSEQ_START in this case does not count the size of this
argument. However CALLSEQ_END still keeps total frame size, as caller can
be responsible for cleanup of entire frame. So CALLSEQ_START and
CALLSEQ_END keep different frame size and the difference is treated by
MachineVerifier as stack error. Currently there is no way to distinguish
this case from actual errors.

This patch adds additional argument to CALLSEQ_START and its
target-specific counterparts to keep size of stack that is set up prior to
the call frame sequence. This argument allows MachineVerifier to calculate
actual frame size associated with frame setup instruction and correctly
process the case of inalloca arguments.

The changes made by the patch are:
- Frame setup instructions get the second mandatory argument. It
  affects all targets that use frame pseudo instructions and touched many
  files although the changes are uniform.
- Access to frame properties are implemented using special instructions
  rather than calls getOperand(N).getImm(). For X86 and ARM such
  replacement was made previously.
- Changes that reflect appearance of additional argument of frame setup
  instruction. These involve proper instruction initialization and
  methods that access instruction arguments.
- MachineVerifier retrieves frame size using method, which reports sum of
  frame parts initialized inside frame instruction pair and outside it.

The patch implements approach proposed by Quentin Colombet in
https://bugs.llvm.org/show_bug.cgi?id=27481#c1.
It fixes 9 tests failed with machine verifier enabled and listed
in PR27481.

Differential Revision: https://reviews.llvm.org/D32394

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302527 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRevert "[MIPS] Add support to match more patterns for DINS instruction"
Simon Dardis [Tue, 9 May 2017 13:18:48 +0000 (13:18 +0000)]
Revert "[MIPS] Add support to match more patterns for DINS instruction"

This reverts commit rL302512. This broke the mips buildbots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302526 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[X86][SSE42] Lower v2i64/v4i64 ASHR(X, 63) as PCMPGTQ(0, X)
Simon Pilgrim [Tue, 9 May 2017 13:14:40 +0000 (13:14 +0000)]
[X86][SSE42] Lower v2i64/v4i64 ASHR(X, 63) as PCMPGTQ(0, X)

Similar to what we do for vXi8 ASHR(X, 7), use SSE42's PCMPGTQ to splat the sign instead of using the PSRAD+PSHUFD.

Avoiding bitcasts this improves combines that utilize computeNumSignBits, permits memory folding and reduces pipe pressure. Although it does require a second register, given that this is a (cheap) zero register the impact is minimal.

Differential Revision: https://reviews.llvm.org/D32973

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302525 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRevert "[Dwarf] Disable reference verification for now (PR32972)"
Diana Picus [Tue, 9 May 2017 13:05:43 +0000 (13:05 +0000)]
Revert "[Dwarf] Disable reference verification for now (PR32972)"

This reverts commit r302520 because it break the unit tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302524 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Dwarf] Disable reference verification for now (PR32972)
Renato Golin [Tue, 9 May 2017 12:36:50 +0000 (12:36 +0000)]
[Dwarf] Disable reference verification for now (PR32972)

There is no other explanation about why this only started happening
now, even though it crashes on old code (supposedly reachable from
here).

The only common factor between the failing bots is that they use GCC
(4.9 and 5.3) to compile Clang, while the others use Clang 3.8, but the
failure is while building the tests, as an assertion, on Clang.

Commenting it out for now in hope the bots will go back green, but we
should keep looking for the real cause, and update bugzilla.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302520 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[X86][AVX512] Add test for masking of scalar instructions.
Guy Blank [Tue, 9 May 2017 12:32:48 +0000 (12:32 +0000)]
[X86][AVX512] Add test for masking of scalar instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302519 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoIntroduce experimental generic intrinsics for horizontal vector reductions.
Amara Emerson [Tue, 9 May 2017 10:43:25 +0000 (10:43 +0000)]
Introduce experimental generic intrinsics for horizontal vector reductions.

- This change allows targets to opt-in to using them instead of the log2
  shufflevector algorithm.
- The SLP and Loop vectorizers have the common code to do shuffle reductions
  factored out into LoopUtils, and now have a unified interface for generating
  reductions regardless of the preference of the target. LoopUtils now uses TTI
  to determine what kind of reductions the target wants to handle.
- For CodeGen, basic legalization support is added.

Differential Revision: https://reviews.llvm.org/D30086

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302514 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[X86] Clang option -fuse-init-array has no effect when generating for MCU target
Nikolai Bozhenov [Tue, 9 May 2017 10:14:03 +0000 (10:14 +0000)]
[X86] Clang option -fuse-init-array has no effect when generating for MCU target

Reviewers: Eugene.Zelenko, dschuff, craig.topper

Reviewed By: craig.topper

Subscribers: ahatanak, aaboud, DavidKreitzer, llvm-commits, cfe-commits

Differential Revision: https://reviews.llvm.org/D32543
Patch by AndreiGrischenko <andrei.l.grischenko@intel.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302513 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[MIPS] Add support to match more patterns for DINS instruction
Strahinja Petrovic [Tue, 9 May 2017 10:02:00 +0000 (10:02 +0000)]
[MIPS] Add support to match more patterns for DINS instruction

This patch adds support for recognizing patterns to match
DINS instruction.

Differential Revision: https://reviews.llvm.org/D31465

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302512 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[ARM GlobalISel] Remove hand-written G_FADD selection
Diana Picus [Tue, 9 May 2017 08:32:42 +0000 (08:32 +0000)]
[ARM GlobalISel] Remove hand-written G_FADD selection

Remove the code selecting G_FADD - now that TableGen can handle more
opcodes, it's not needed anymore.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302511 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[ConstantRange] Rewrite shl to avoid repeated calls to getUnsignedMax and avoid creat...
Craig Topper [Tue, 9 May 2017 07:04:04 +0000 (07:04 +0000)]
[ConstantRange] Rewrite shl to avoid repeated calls to getUnsignedMax and avoid creating the min APInt until we're sure we need it. Use inplace shift operations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302510 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[ConstantRange] Combine the two adds max+1 in lshr into a single addition.
Craig Topper [Tue, 9 May 2017 07:04:02 +0000 (07:04 +0000)]
[ConstantRange] Combine the two adds max+1 in lshr into a single addition.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302509 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[ConstantRange] Use APInt::isNullValue in place of comparing with 0. The compiler...
Craig Topper [Tue, 9 May 2017 05:01:29 +0000 (05:01 +0000)]
[ConstantRange] Use APInt::isNullValue in place of comparing with 0. The compiler should be able to generate slightly better code for the former. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302508 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRevert "Don't add DBG_VALUE instructions for static allocas in dbg.declare"
Reid Kleckner [Tue, 9 May 2017 01:57:44 +0000 (01:57 +0000)]
Revert "Don't add DBG_VALUE instructions for static allocas in dbg.declare"

This reverts commit r302461.

It appears to be causing failures compiling gtest with debug info on the
Linux sanitizer bot. I was unable to reproduce the failure locally,
however.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302504 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoFix code section prefix for proper layout
Teresa Johnson [Tue, 9 May 2017 01:43:24 +0000 (01:43 +0000)]
Fix code section prefix for proper layout

Summary:
r284533 added hot and cold section prefixes based on profile
information, to enable grouping of hot/cold functions at link time.
However, it used "cold" as the prefix for cold sections, but gold only
recognizes "unlikely" (which is used by gcc for cold sections).
Therefore, cold sections were not properly being grouped. Switch to
using "unlikely"

Reviewers: danielcdh, davidxl

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D32983

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302502 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRevert "Revert "CMake: Move sphinx detection into AddSphinxTarget.cmake""
Tom Stellard [Tue, 9 May 2017 01:41:28 +0000 (01:41 +0000)]
Revert "Revert "CMake: Move sphinx detection into AddSphinxTarget.cmake""

This reverts commit r302054.

Re-commit now that I have fixes for clang/lld.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302499 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[libFuzzer] update docs on -print_coverage/-dump_coverage
Kostya Serebryany [Tue, 9 May 2017 01:34:27 +0000 (01:34 +0000)]
[libFuzzer] update docs on -print_coverage/-dump_coverage

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302498 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[libFuzzer] make sure the input data is not overwritten in the fuzz target (if it...
Kostya Serebryany [Tue, 9 May 2017 01:17:29 +0000 (01:17 +0000)]
[libFuzzer] make sure the input data is not overwritten in the fuzz target (if it is -- report an error)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302494 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRevert "Use the frame index side table for byval and inalloca arguments"
Reid Kleckner [Tue, 9 May 2017 01:14:39 +0000 (01:14 +0000)]
Revert "Use the frame index side table for byval and inalloca arguments"

This reverts r302483 and it's follow up fix.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302493 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[APInt] Use default constructor instead of explicitly creating a 1-bit APInt in udiv...
Craig Topper [Mon, 8 May 2017 23:49:54 +0000 (23:49 +0000)]
[APInt] Use default constructor instead of explicitly creating a 1-bit APInt in udiv and urem. NFC

The default constructor does the same thing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302487 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[APInt] Remove 'else' after 'return' in udiv and urem. NFC
Craig Topper [Mon, 8 May 2017 23:49:49 +0000 (23:49 +0000)]
[APInt] Remove 'else' after 'return' in udiv and urem. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302486 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoIgnore !associated metadata with null argument.
Evgeniy Stepanov [Mon, 8 May 2017 23:46:20 +0000 (23:46 +0000)]
Ignore !associated metadata with null argument.

Fixes PR32577 (comment 10).
Such metadata may legitimately appear in LTO.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302485 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRelax Dwarf filecheck test for 32-bit hosts
Reid Kleckner [Mon, 8 May 2017 23:27:52 +0000 (23:27 +0000)]
Relax Dwarf filecheck test for 32-bit hosts

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302484 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoUse the frame index side table for byval and inalloca arguments
Reid Kleckner [Mon, 8 May 2017 23:20:27 +0000 (23:20 +0000)]
Use the frame index side table for byval and inalloca arguments

Summary:
For inalloca functions, this is a very common code pattern:

  %argpack = type <{ i32, i32, i32 }>
  define void @f(%argpack* inalloca %args) {
  entry:
    %a = getelementptr inbounds %argpack, %argpack* %args, i32 0, i32 0
    %b = getelementptr inbounds %argpack, %argpack* %args, i32 0, i32 1
    %c = getelementptr inbounds %argpack, %argpack* %args, i32 0, i32 2
    tail call void @llvm.dbg.declare(metadata i32* %a, ... "a")
    tail call void @llvm.dbg.declare(metadata i32* %c, ... "b")
    tail call void @llvm.dbg.declare(metadata i32* %b, ... "c")

Even though these GEPs can be simplified to a constant offset from EBP
or RSP, we don't do that at -O0, and each GEP is computed into a
register. Registers used to compute argument addresses are typically
spilled and clobbered very quickly after the initial computation, so
live debug variable tracking loses information very quickly if we use
DBG_VALUE instructions.

This change moves processing of dbg.declare between argument lowering
and basic block isel, so that we can ask if an argument has a frame
index or not. If the argument lives in a register as is the case for
byval arguments on some targets, then we don't put it in the side table
and during ISel we emit DBG_VALUE instructions.

Reviewers: aprantl

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D32980

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302483 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAdd basic test case for -instnamer
Sanjoy Das [Mon, 8 May 2017 23:18:46 +0000 (23:18 +0000)]
Add basic test case for -instnamer

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302482 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[InstNamer] Use range-for
Sanjoy Das [Mon, 8 May 2017 23:18:43 +0000 (23:18 +0000)]
[InstNamer] Use range-for

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302481 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[InstNamer] Don't check type of arguments (they're never void)
Sanjoy Das [Mon, 8 May 2017 23:18:39 +0000 (23:18 +0000)]
[InstNamer] Don't check type of arguments (they're never void)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302480 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoDelete trailing whitespace
Sanjoy Das [Mon, 8 May 2017 23:18:36 +0000 (23:18 +0000)]
Delete trailing whitespace

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302479 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[InstCombine] add tests from D32285 to show current problems; NFC
Sanjay Patel [Mon, 8 May 2017 22:33:20 +0000 (22:33 +0000)]
[InstCombine] add tests from D32285 to show current problems; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302475 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAdd const to "DWARFDie &Die" in a few functions as they can't change the DWARFDie.
Greg Clayton [Mon, 8 May 2017 21:29:17 +0000 (21:29 +0000)]
Add const to "DWARFDie &Die" in a few functions as they can't change the DWARFDie.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302471 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoFix typo
Eugene Zemtsov [Mon, 8 May 2017 21:20:53 +0000 (21:20 +0000)]
Fix typo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302470 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoMake it illegal for two Functions to point to the same DISubprogram
Adrian Prantl [Mon, 8 May 2017 21:17:08 +0000 (21:17 +0000)]
Make it illegal for two Functions to point to the same DISubprogram

As recently discussed on llvm-dev [1], this patch makes it illegal for
two Functions to point to the same DISubprogram and updates
FunctionCloner to also clone the debug info of a function to conform
to the new requirement. To simplify the implementation it also factors
out the creation of inlineAt locations from the Inliner into a
general-purpose utility in DILocation.

[1] http://lists.llvm.org/pipermail/llvm-dev/2017-May/112661.html
<rdar://problem/31926379>

Differential Revision: https://reviews.llvm.org/D32975

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302469 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoSTLExtras: Fix enumerate() documentation
Matthias Braun [Mon, 8 May 2017 21:10:58 +0000 (21:10 +0000)]
STLExtras: Fix enumerate() documentation

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302467 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoFix typo "veify" to "verify".
Greg Clayton [Mon, 8 May 2017 20:53:00 +0000 (20:53 +0000)]
Fix typo "veify" to "verify".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302466 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[InstCombine] add folds for not-of-shift-right
Sanjay Patel [Mon, 8 May 2017 20:49:59 +0000 (20:49 +0000)]
[InstCombine] add folds for not-of-shift-right

This is another step towards getting rid of dyn_castNotVal,
so we can recommit:
https://reviews.llvm.org/rL300977

As the tests show, we were missing the lshr case for constants
and both ashr/lshr vector splat folds. The ashr case with constant
was being performed inefficiently in 2 steps. It's also possible
there was a latent bug in that case because we can't do that fold
if the constant is positive:
http://rise4fun.com/Alive/Bge

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302465 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[PartialInlining] Capture by reference rather than by value.
Davide Italiano [Mon, 8 May 2017 20:44:01 +0000 (20:44 +0000)]
[PartialInlining] Capture by reference rather than by value.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302464 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoARM: use divmod libcalls on embedded MachO platforms too.
Tim Northover [Mon, 8 May 2017 20:00:14 +0000 (20:00 +0000)]
ARM: use divmod libcalls on embedded MachO platforms too.

The separated libcalls are implemented in terms of __divmodsi4 and __udivmodsi4
anyway, so we should always use them if possible.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302462 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoDon't add DBG_VALUE instructions for static allocas in dbg.declare
Reid Kleckner [Mon, 8 May 2017 19:58:15 +0000 (19:58 +0000)]
Don't add DBG_VALUE instructions for static allocas in dbg.declare

Summary:
An llvm.dbg.declare of a static alloca is always added to the
MachineFunction dbg variable map, so these values are entirely
redundant. They survive all the way through codegen to be ignored by
DWARF emission.

Effectively revert r113967

Two bugpoint-reduced test cases from 2012 broke as a result of this
change. Despite my best efforts, I haven't been able to rewrite the test
case using dbg.value. I'm not too concerned about the lost coverage
because these were reduced from the test-suite, which we still run.

Reviewers: aprantl, dblaikie

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D32920

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302461 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAdd some useful helper methods / operators to TypeIndex.
Zachary Turner [Mon, 8 May 2017 19:46:37 +0000 (19:46 +0000)]
Add some useful helper methods / operators to TypeIndex.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302460 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoUpdate instructions for using the experimental monorepo
Reid Kleckner [Mon, 8 May 2017 19:45:57 +0000 (19:45 +0000)]
Update instructions for using the experimental monorepo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302459 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[BitVector] Make find_prev member function const.
Zachary Turner [Mon, 8 May 2017 19:45:55 +0000 (19:45 +0000)]
[BitVector] Make find_prev member function const.

NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302458 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAdd a blurb to the release notes about the WeakVH -> WeakTrackingVH transition
Sanjoy Das [Mon, 8 May 2017 19:15:06 +0000 (19:15 +0000)]
Add a blurb to the release notes about the WeakVH -> WeakTrackingVH transition

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302456 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[CodeView] Add support for random access type visitors.
Zachary Turner [Mon, 8 May 2017 18:38:43 +0000 (18:38 +0000)]
[CodeView] Add support for random access type visitors.

Previously type visitation was done strictly sequentially, and
TypeIndexes were computed by incrementing the TypeIndex of the
last visited record.  This works fine for situations like dumping,
but not when you want to visit types in random order.  For example,
in a debug session someone might lookup a symbol by name, find that
it has TypeIndex 10,000 and then want to go straight to TypeIndex
10,000.

In order to make this work, the visitation framework needs a mode
where it can plumb TypeIndices through the callback pipeline.  This
patch adds such a mode.  In doing so, it is necessary to provide
an alternative implementation of TypeDatabase that supports random
access, so that is done as well.

Nothing actually uses these random access capabilities yet, but
this will be done in subsequent patches.

Differential Revision: https://reviews.llvm.org/D32928

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302454 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[AArch64][RegisterBankInfo] Change the default mapping of fp loads.
Quentin Colombet [Mon, 8 May 2017 18:16:31 +0000 (18:16 +0000)]
[AArch64][RegisterBankInfo] Change the default mapping of fp loads.

This fixes PR32550, in a way that does not imply running the greedy
mode at O0.

The fix consists in checking if a load is used by any floating point
instruction and if yes, we return a default mapping with FPR instead
of GPR.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302453 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[AArch64][RegisterBankInfo] Fix mapping cost for GPR.
Quentin Colombet [Mon, 8 May 2017 18:16:23 +0000 (18:16 +0000)]
[AArch64][RegisterBankInfo] Fix mapping cost for GPR.

In r292478, we changed the order of the enum that is referenced by
PMI_FirstXXX. This had the side effect of changing the cost of the
mapping of all the loads, instead of just the FPRs ones.

Reinstate the higher cost for all but GPR loads.
Note: This did not have any external visible effects:
- For Fast mode, the cost would have been higher, but we don't care
  because we don't try to use alternative mappings.
- For Greedy mode, the higher cost of the GPR loads, would have
  triggered the use of the supposedly alternative mapping, that
  would be in fact the same GPR mapping but with a lower cost.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302452 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[InstCombine] move/add tests for not(shr (not X), Y); NFC
Sanjay Patel [Mon, 8 May 2017 18:16:04 +0000 (18:16 +0000)]
[InstCombine] move/add tests for not(shr (not X), Y); NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302451 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[ARM] Use a Changed flag to avoid making a pass's return value dependent on a compare...
Craig Topper [Mon, 8 May 2017 18:02:51 +0000 (18:02 +0000)]
[ARM] Use a Changed flag to avoid making a pass's return value dependent on a compare with a Statistic object.

Statistic compile to always be 0 in release build so this compare would always return false. And in the debug builds Statistic are global variables and remember their values across pass runs. So this compare returns true anytime the pass runs after the first time it modifies something.

This was found after reviewing all usages of comparison operators on a Statistic object. We had some internal code that did a compare with a statistic that caused a mismatch in output between debug and release builds. So we did an audit out of paranoia.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302450 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[SCEV] Make setRange take ConstantRange by value instead of rvalue reference so we...
Craig Topper [Mon, 8 May 2017 17:39:08 +0000 (17:39 +0000)]
[SCEV] Make setRange take ConstantRange by value instead of rvalue reference so we don't force anything on the caller.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302449 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[SCEV] Don't use std::move on both inputs to APInt::operator+ or operator-. It might...
Craig Topper [Mon, 8 May 2017 17:39:01 +0000 (17:39 +0000)]
[SCEV] Don't use std::move on both inputs to APInt::operator+ or operator-. It might be confusing to the reader. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302448 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoConstantFold: Handle gep nonnull, undef as well
Daniel Berlin [Mon, 8 May 2017 17:37:33 +0000 (17:37 +0000)]
ConstantFold: Handle gep nonnull, undef as well

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302447 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoConstantFold: Fold getelementptr (i32, i32* null, i64 undef) to null.
Daniel Berlin [Mon, 8 May 2017 17:37:29 +0000 (17:37 +0000)]
ConstantFold: Fold  getelementptr (i32, i32* null, i64 undef) to null.
Transforms/IndVarSimplify/2011-10-27-lftrnull will fail if this regresses.
Transforms/GVN/PRE/2011-06-01-NonLocalMemdepMiscompile.ll has been changed to still test what it was
trying to test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302446 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[ValueTracking] Use KnownOnes to provide a better bound on known zeros for ctlz/cttz...
Craig Topper [Mon, 8 May 2017 17:22:34 +0000 (17:22 +0000)]
[ValueTracking] Use KnownOnes to provide a better bound on known zeros for ctlz/cttz intrinics

This patch uses KnownOnes of the input of ctlz/cttz to bound the value that can be returned from these intrinsics. This makes these intrinsics more similar to the handling for ctpop which already uses known bits to produce a similar bound.

Differential Revision: https://reviews.llvm.org/D32521

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302444 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[X86] Split test configurations. NFC.
Zvi Rackover [Mon, 8 May 2017 16:54:25 +0000 (16:54 +0000)]
[X86] Split test configurations. NFC.

Split test that includes reproducer for pr32967 to KNL and SKX.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302442 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[InstSimplify] fix typo; NFC
Sanjay Patel [Mon, 8 May 2017 16:35:02 +0000 (16:35 +0000)]
[InstSimplify] fix typo; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302439 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[InstCombine] use local variable to reduce code duplication; NFCI
Sanjay Patel [Mon, 8 May 2017 16:33:42 +0000 (16:33 +0000)]
[InstCombine] use local variable to reduce code duplication; NFCI

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302438 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[ValueTracking] Introduce a version of computeKnownBits that returns a KnownBits...
Craig Topper [Mon, 8 May 2017 16:22:48 +0000 (16:22 +0000)]
[ValueTracking] Introduce a version of computeKnownBits that returns a KnownBits struct. Begin using it to replace internal usages of ComputeSignBit

This introduces a new interface for computeKnownBits that returns the KnownBits object instead of requiring it to be pre-constructed and passed in by reference.

This is a much more convenient interface as it doesn't require the caller to figure out the BitWidth to pre-construct the object. It's so convenient that I believe we can use this interface to remove the special ComputeSignBit flavor of computeKnownBits.

As a step towards that idea, this patch replaces all of the internal usages of ComputeSignBit with this new interface. As you can see from the patch there were a couple places where we called ComputeSignBit which really called computeKnownBits, and then called computeKnownBits again directly. I've reduced those places to only making one call to computeKnownBits. I bet there are probably external users that do it too.

A future patch will update the external users and remove the ComputeSignBit interface. I'll also working on moving more locations to the KnownBits returning interface for computeKnownBits.

Differential Revision: https://reviews.llvm.org/D32848

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302437 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[InstCombine/InstSimplify] add comments about code duplication; NFC
Sanjay Patel [Mon, 8 May 2017 16:21:55 +0000 (16:21 +0000)]
[InstCombine/InstSimplify] add comments about code duplication; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302436 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[InstCombine] add another test for PR32949; NFC
Sanjay Patel [Mon, 8 May 2017 15:58:57 +0000 (15:58 +0000)]
[InstCombine] add another test for PR32949; NFC

A patch for the InstSimplify variant of this bug is up for review here:
https://reviews.llvm.org/D32954

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302434 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoInstructionSimplify: Refactor foldIdentityShuffles. NFC.
Zvi Rackover [Mon, 8 May 2017 15:46:58 +0000 (15:46 +0000)]
InstructionSimplify: Refactor foldIdentityShuffles. NFC.

Summary:
Minor refactoring of foldIdentityShuffles() which allows the removal of a
ConstantDataVector::get() in SimplifyShuffleVectorInstruction.

Reviewers: spatel

Reviewed By: spatel

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D32955

Conflicts:
lib/Analysis/InstructionSimplify.cpp

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302433 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoFix comment typos.
Geoff Berry [Mon, 8 May 2017 15:33:08 +0000 (15:33 +0000)]
Fix comment typos.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302432 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAdding reproducer for pr32967. NFC.
Zvi Rackover [Mon, 8 May 2017 14:47:32 +0000 (14:47 +0000)]
Adding reproducer for pr32967. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302426 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[X86][SSE] Improve combineLogicBlendIntoPBLENDV to use general masks.
Simon Pilgrim [Mon, 8 May 2017 14:16:39 +0000 (14:16 +0000)]
[X86][SSE] Improve combineLogicBlendIntoPBLENDV to use general masks.

Currently combineLogicBlendIntoPBLENDV can only match ASHR to detect sign splatting of a bit mask, this patch generalises this to use computeNumSignBits instead.

This is a first step in several things we can do to improve PBLENDV support:

 * Better matching of X86ISD::ANDNP patterns.
 * Handle floating point cases.
 * Better vector and bitcast support in computeNumSignBits.
 * Recognise that PBLENDV only uses the sign bit of the mask, we should be able strip away sign splats (ASHR, PCMPGT isNeg tests etc.).

Differential Revision: https://reviews.llvm.org/D32953

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302424 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoNormalize line endings. NFCI,
Simon Pilgrim [Mon, 8 May 2017 13:32:34 +0000 (13:32 +0000)]
Normalize line endings. NFCI,

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302422 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoIR: Add a shufflevector mask commutation helper function. NFC.
Zvi Rackover [Mon, 8 May 2017 12:40:18 +0000 (12:40 +0000)]
IR: Add a shufflevector mask commutation helper function. NFC.

Summary:
Following up on Sanjay's suggetion in D32955, move this functionality
into ShuffleVectornstruction.

Reviewers: spatel, RKSimon

Reviewed By: RKSimon

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D32956

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302420 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[ARM][NEON] Add support for ISD::ABS lowering
Simon Pilgrim [Mon, 8 May 2017 10:37:34 +0000 (10:37 +0000)]
[ARM][NEON] Add support for ISD::ABS lowering

Update NEON int_arm_neon_vabs intrinsic to use the ISD::ABS opcode directly

Added constant folding tests.

Differential Revision: https://reviews.llvm.org/D32938

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302417 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[ARM] Clear the constant pool cache on explicit .ltorg directives
Martin Storsjo [Mon, 8 May 2017 10:26:24 +0000 (10:26 +0000)]
[ARM] Clear the constant pool cache on explicit .ltorg directives

Multiple ldr pseudoinstructions with the same constant value will
reuse the same constant pool entry. However, if the constant pool
is explicitly flushed with a .ltorg directive, we should not try
to reference constants in the previous pool any longer, since they
may be out of range.

This fixes assembling hand-written assembler source which repeatedly
loads the same constant value, across a binary size larger than the
pc-relative fixup range for ldr instructions (4096 bytes). Such
assembler source already uses explicit .ltorg instructions to emit
constant pools with regular intervals. However if we try to reuse
constants emitted in earlier pools, they end up out of range.

This makes the output of the testcase match what binutils gas does
(prior to this patch, it would fail to assemble).

Differential Revision: https://reviews.llvm.org/D32847

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302416 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[AARCH64][NEON] Add support for ISD::ABS lowering
Simon Pilgrim [Mon, 8 May 2017 10:25:18 +0000 (10:25 +0000)]
[AARCH64][NEON] Add support for ISD::ABS lowering

Update int_aarch64_neon_abs intrinsic to use the ISD::ABS opcode directly

Differential Revision: https://reviews.llvm.org/D32940

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302415 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[GlobalISel][X86] G_GEP selection support.
Igor Breger [Mon, 8 May 2017 09:40:43 +0000 (09:40 +0000)]
[GlobalISel][X86] G_GEP selection support.

Summary: [GlobalISel][X86] G_GEP selection support.

Reviewers: zvi, guyblank

Reviewed By: guyblank

Subscribers: dberris, rovka, llvm-commits, kristof.beyls

Differential Revision: https://reviews.llvm.org/D32396

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302412 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[GlobalISel][X86] G_MUL legalizer/selector support.
Igor Breger [Mon, 8 May 2017 09:03:37 +0000 (09:03 +0000)]
[GlobalISel][X86] G_MUL legalizer/selector support.

Summary:
G_MUL legalizer/selector/regbank support.
Use only Tablegen-erated instruction selection.
This patch dealing with legal operations only.

Reviewers: zvi, guyblank

Reviewed By: guyblank

Subscribers: krytarowski, rovka, kristof.beyls, llvm-commits

Differential Revision: https://reviews.llvm.org/D32698

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302410 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Lit] Fix to prevent creation of "%SystemDrive%" directory on Windows.
Andrew Ng [Mon, 8 May 2017 08:55:38 +0000 (08:55 +0000)]
[Lit] Fix to prevent creation of "%SystemDrive%" directory on Windows.

This patch propogates the environment variable SYSTEMDRIVE on Windows when
running the unit tests. This prevents the creation of a directory named
"%SystemDrive%" when running the unit tests from FileSystemTest that use the
function llvm::sys::fs::remove_directories which in turn uses SHFileOperationW.
It is within SHFileOperationW that this environment variable may be used and if
undefined causes the creation of a "%SystemDrive%" directory in the current
directory.

Differential Revision: https://reviews.llvm.org/D32910

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302409 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[APInt] Modify tcMultiplyPart's overflow detection to not depend on 'i' from the...
Craig Topper [Mon, 8 May 2017 06:34:41 +0000 (06:34 +0000)]
[APInt] Modify tcMultiplyPart's overflow detection to not depend on 'i' from the earlier loop. NFC

The value of 'i' is always the smaller of DstParts and SrcParts so we can just use that fact to write all the code in terms of SrcParts and DstParts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302408 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[APInt] Use std::min instead of writing the same thing with the ternary operator...
Craig Topper [Mon, 8 May 2017 06:34:39 +0000 (06:34 +0000)]
[APInt] Use std::min instead of writing the same thing with the ternary operator. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302407 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[APInt] Remove 'else' after 'return' in tcMultiply methods. NFC
Craig Topper [Mon, 8 May 2017 06:34:36 +0000 (06:34 +0000)]
[APInt] Remove 'else' after 'return' in tcMultiply methods. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302406 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[XRay] Custom event logging intrinsic
Dean Michael Berris [Mon, 8 May 2017 05:45:21 +0000 (05:45 +0000)]
[XRay] Custom event logging intrinsic

This patch introduces an LLVM intrinsic and a target opcode for custom event
logging in XRay. Initially, its use case will be to allow users of XRay to log
some type of string ("poor man's printf"). The target opcode compiles to a noop
sled large enough to enable calling through to a runtime-determined relative
function call. At runtime, when X-Ray is enabled, the sled is replaced by
compiler-rt with a trampoline to the logic for creating the custom log entries.

Future patches will implement the compiler-rt parts and clang-side support for
emitting the IR corresponding to this intrinsic.

Reviewers: timshen, dberris

Subscribers: igorb, pelikan, rSerge, timshen, echristo, dberris, llvm-commits

Differential Revision: https://reviews.llvm.org/D27503

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302405 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[SCEV] Use APInt::operator*=(uint64_t) to avoid a temporary APInt for a constant.
Craig Topper [Mon, 8 May 2017 04:55:13 +0000 (04:55 +0000)]
[SCEV] Use APInt::operator*=(uint64_t) to avoid a temporary APInt for a constant.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302404 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[APInt] Take advantage of new operator*=(uint64_t) to remove a temporary APInt.
Craig Topper [Mon, 8 May 2017 04:55:12 +0000 (04:55 +0000)]
[APInt] Take advantage of new operator*=(uint64_t) to remove a temporary APInt.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302403 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[APInt] Add support for multiplying by a uint64_t.
Craig Topper [Mon, 8 May 2017 04:55:09 +0000 (04:55 +0000)]
[APInt] Add support for multiplying by a uint64_t.

This makes multiply similar to add, sub, xor, and, and or.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302402 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoHopefully one last commit to fix this patch, addresses string reference
Eric Beckmann [Mon, 8 May 2017 02:47:42 +0000 (02:47 +0000)]
Hopefully one last commit to fix this patch, addresses string reference
issues.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302401 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoQuick fix to D32609, it seems .o files are not transferred in all cases.
Eric Beckmann [Mon, 8 May 2017 02:47:25 +0000 (02:47 +0000)]
Quick fix to D32609, it seems .o files are not transferred in all cases.

Therefore the .o file in question is renamed to .obj.coff.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302400 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoUpdate llvm-readobj -coff-resources to display tree structure.
Eric Beckmann [Mon, 8 May 2017 02:47:07 +0000 (02:47 +0000)]
Update llvm-readobj -coff-resources to display tree structure.

Summary: Continue making updates to llvm-readobj to display resource sections.  This is necessary for testing the up and coming cvtres tool.

Reviewers: zturner

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D32609

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302399 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[SCEV] Have getRangeForAffineARHelper take StartRange by const reference to avoid...
Craig Topper [Mon, 8 May 2017 02:29:15 +0000 (02:29 +0000)]
[SCEV] Have getRangeForAffineARHelper take StartRange by const reference to avoid a copy in many of the cases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302398 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRevert "Hopefully one last commit to fix this patch, addresses string reference"
Eric Beckmann [Mon, 8 May 2017 02:25:03 +0000 (02:25 +0000)]
Revert "Hopefully one last commit to fix this patch, addresses string reference"

Summary:
This reverts commit 56beec1b1cfc6d263e5eddb7efff06117c0724d2.

Revert "Quick fix to D32609, it seems .o files are not transferred in all cases."

This reverts commit 7652eecd29cfdeeab7f76f687586607a99ff4e36.

Revert "Update llvm-readobj -coff-resources to display tree structure."

This reverts commit 422b62c4d302cfc92401418c2acd165056081ed7.

Reviewers: zturner

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D32958

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302397 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoHopefully one last commit to fix this patch, addresses string reference
Eric Beckmann [Mon, 8 May 2017 01:48:55 +0000 (01:48 +0000)]
Hopefully one last commit to fix this patch, addresses string reference
issues.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302395 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoQuick fix to D32609, it seems .o files are not transferred in all cases.
Eric Beckmann [Sun, 7 May 2017 23:31:14 +0000 (23:31 +0000)]
Quick fix to D32609, it seems .o files are not transferred in all cases.

Therefore the .o file in question is renamed to .obj.coff.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302388 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoUpdate llvm-readobj -coff-resources to display tree structure.
Eric Beckmann [Sun, 7 May 2017 22:47:22 +0000 (22:47 +0000)]
Update llvm-readobj -coff-resources to display tree structure.

Summary: Continue making updates to llvm-readobj to display resource sections.  This is necessary for testing the up and coming cvtres tool.

Reviewers: zturner

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D32609

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302386 91177308-0d34-0410-b5e6-96231b3b80d8