OSDN Git Service

android-x86/external-llvm.git
6 years ago[SimplifyIndVar] Extract out invariant expression handling
Philip Reames [Tue, 31 Oct 2017 04:19:06 +0000 (04:19 +0000)]
[SimplifyIndVar] Extract out invariant expression handling

Previously, the code returned early from the *function* when it couldn't find a free expansion, it should be returning from the *transform*.  I don't have a test case, noticed this via inspection.

As a follow up, I'm going to revisit the logic in the extract function.  I think that essentially the whole helper routine can be replaced with SCEVExpander, but I wanted to do that in a series of separate commits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316974 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Clang-format some code. NFC
Craig Topper [Tue, 31 Oct 2017 02:34:29 +0000 (02:34 +0000)]
[X86] Clang-format some code. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316973 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[cmake] Make check_linker_flags operate via linker flags
Shoaib Meenai [Tue, 31 Oct 2017 01:30:46 +0000 (01:30 +0000)]
[cmake] Make check_linker_flags operate via linker flags

`check_linker_flags` currently sets the *compiler* flags (via
`CMAKE_REQUIRED_FLAGS`), and thus implicitly relies on cmake's default
behavior of passing the compiler flags to the linker. This breaks when
cmake's build rules have been altered to not pollute the link line with
compiler flags (which can be desirable for build cleanliness). Instead,
set `CMAKE_EXE_LINKER_FLAGS` explicitly and use `CMP0056` to ensure the
linker flags are passed along. Additionally, since we're inside a
function, we can just alter the variable directly (as the alteration
will be limited to the scope of the function) rather than saving and
restoring the old value.

Differential Revision: https://reviews.llvm.org/D39431

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316972 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoUndo accidental commit
Philip Reames [Tue, 31 Oct 2017 00:04:09 +0000 (00:04 +0000)]
Undo accidental commit

These files shouldn't have been submitted in 316967

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316968 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[CGP] Fix crash on i96 bit multiply
Philip Reames [Mon, 30 Oct 2017 23:59:51 +0000 (23:59 +0000)]
[CGP] Fix crash on i96 bit multiply

Issue found by llvm-isel-fuzzer on OSS fuzz, https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=3725

If anyone actually cares about > 64 bit arithmetic, there's a lot more to do in this area.  There's a bunch of obviously wrong code in the same function.  I don't have the time to fix all of them and am just using this to understand what the workflow for fixing fuzzer cases might look like.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316967 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoFix unused variable warnings. NFCI.
Simon Pilgrim [Mon, 30 Oct 2017 22:38:07 +0000 (22:38 +0000)]
Fix unused variable warnings. NFCI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316964 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[SelectionDAG] Tidyup computeKnownBits extension/truncation cases. NFCI.
Simon Pilgrim [Mon, 30 Oct 2017 22:23:57 +0000 (22:23 +0000)]
[SelectionDAG] Tidyup computeKnownBits extension/truncation cases. NFCI.

We don't need to extend/truncate the Known structure before calling computeKnownBits - it will reset at the start of the function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316962 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AArch64]: range loopify frame-lowering
Javed Absar [Mon, 30 Oct 2017 22:00:06 +0000 (22:00 +0000)]
[AArch64]: range loopify frame-lowering

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316960 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoFix -fuse-ld feature detection error.
Rui Ueyama [Mon, 30 Oct 2017 21:19:54 +0000 (21:19 +0000)]
Fix -fuse-ld feature detection error.

check_cxx_compiler_flag doesn't seem to try to link a program, so
the existing code doesn't correctly detect the availability of a given
linker.  This patch uses check_cxx_source_compiles instead.

I confirmed that cmake now reports this error

  Host compiler does not support '-fuse-ld=foo'

for -DLLVM_USE_LINKER=foo.

Differential Revision: https://reviews.llvm.org/D39274

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316958 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoInferAddressSpaces: Fix bug about replacing addrspacecast
Yaxun Liu [Mon, 30 Oct 2017 21:19:41 +0000 (21:19 +0000)]
InferAddressSpaces: Fix bug about replacing addrspacecast

InferAddressSpaces assumes the pointee type of addrspacecast
is the same as the operand, which is not always true and causes
invalid IR.

This bug cause build failure in HCC.

This patch fixes that.

Differential Revision: https://reviews.llvm.org/D39432

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316957 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[CMake] Fix linker detection in AddLLVM.cmake
Tim Shen [Mon, 30 Oct 2017 21:12:14 +0000 (21:12 +0000)]
[CMake] Fix linker detection in AddLLVM.cmake

Fix linker not being correctly detected when a custom one is specified
through LLVM_USE_LINKER CMake variable.

In particular,

  cmake -DCMAKE_BUILD_TYPE=Release -DLLVM_USE_LINKER=gold ../llvm

resulted into

  Linker detection: GNU ld

instead of

  Linker detection: GNU Gold

due to the construction not accounting for such variable. It led to the general
confusion and prevented setting linker-specific flags inside functions defined
in AddLLVM.cmake.

Thanks Oleksii Vilchanskyi for the patch!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316956 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Add AVX512 support to fast isel's X86ChooseCmpOpcode.
Craig Topper [Mon, 30 Oct 2017 21:09:19 +0000 (21:09 +0000)]
[X86] Add AVX512 support to fast isel's X86ChooseCmpOpcode.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316955 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[NewGVN] Stop assuming PHI args ordering when looking at phi-of-ops.
Davide Italiano [Mon, 30 Oct 2017 20:20:16 +0000 (20:20 +0000)]
[NewGVN] Stop assuming PHI args ordering when looking at phi-of-ops.

It's not guaranteed. There's a bug open to sort them in predecessor
order, but it won't happen anytime soon. In the meanwhile, passes
will have to do an O(#preds) scan. Such is life.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316953 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRevert "[PowerPC] Try to simplify a Swap if it feeds a Splat"
Stefan Pintilie [Mon, 30 Oct 2017 19:55:38 +0000 (19:55 +0000)]
Revert "[PowerPC] Try to simplify a Swap if it feeds a Splat"

Revert r316478.
A test case has failed.
Will recommit this change once we find and fix the failure.

This reverts commit 7c330fabaedaba3d02c58bc3cc1198896c895f34.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316952 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoCreate instruction classes for identifying any atomicity of memory intrinsic. (NFC)
Daniel Neilson [Mon, 30 Oct 2017 19:51:48 +0000 (19:51 +0000)]
Create instruction classes for identifying any atomicity of memory intrinsic. (NFC)

Summary:
For reference, see: http://lists.llvm.org/pipermail/llvm-dev/2017-August/116589.html

This patch fleshes out the instruction class hierarchy with respect to atomic and
non-atomic memory intrinsics. With this change, the relevant part of the class
hierarchy becomes:

IntrinsicInst
  -> MemIntrinsicBase (methods-only class)
    -> MemIntrinsic (non-atomic intrinsics)
      -> MemSetInst
      -> MemTransferInst
        -> MemCpyInst
        -> MemMoveInst
    -> AtomicMemIntrinsic (atomic intrinsics)
      -> AtomicMemSetInst
      -> AtomicMemTransferInst
        -> AtomicMemCpyInst
        -> AtomicMemMoveInst
    -> AnyMemIntrinsic (both atomicities)
      -> AnyMemSetInst
      -> AnyMemTransferInst
        -> AnyMemCpyInst
        -> AnyMemMoveInst

This involves some class renaming:
    ElementUnorderedAtomicMemCpyInst -> AtomicMemCpyInst
    ElementUnorderedAtomicMemMoveInst -> AtomicMemMoveInst
    ElementUnorderedAtomicMemSetInst -> AtomicMemSetInst
A script for doing this renaming in downstream trees is included below.

An example of where the Any* classes should be used in LLVM is when reasoning
about the effects of an instruction (ex: aliasing).

---
Script for renaming AtomicMem* classes:
PREFIXES="[<,([:space:]]"
CLASSES="MemIntrinsic|MemTransferInst|MemSetInst|MemMoveInst|MemCpyInst"
SUFFIXES="[;)>,[:space:]]"

REGEX="(${PREFIXES})ElementUnorderedAtomic(${CLASSES})(${SUFFIXES})"
REGEX2="visitElementUnorderedAtomic(${CLASSES})"

FILES=$( grep -E "(${REGEX}|${REGEX2})" -r . | tr ':' ' ' | awk '{print $1}' | sort | uniq )

SED_SCRIPT="s~${REGEX}~\1Atomic\2\3~g"
SED_SCRIPT2="s~${REGEX2}~visitAtomic\1~g"

for f in $FILES; do
    echo "Processing: $f"
    sed  -i ".bak" -E "${SED_SCRIPT};${SED_SCRIPT2};${EA_SED_SCRIPT};${EA_SED_SCRIPT2}" $f
done

Reviewers: sanjoy, deadalnix, apilipenko, anna, skatkov, mkazantsev

Reviewed By: sanjoy

Subscribers: hfinkel, jholewinski, arsenm, sdardis, nhaehnle, JDevlieghere, javed.absar, llvm-commits

Differential Revision: https://reviews.llvm.org/D38419

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316950 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[GVNHoist] Fix non-deterministic sort order of PHIs for identical instructions
Mandeep Singh Grang [Mon, 30 Oct 2017 19:42:41 +0000 (19:42 +0000)]
[GVNHoist] Fix non-deterministic sort order of PHIs for identical instructions

Summary: This fixes failure in Transforms/GVNHoist/hoist.ll uncovered by D39245.

Reviewers: hiraditya, spop, dberlin

Reviewed By: dberlin

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D39410

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316949 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[SelectionDAG] Add VSELECT demanded elts support to computeKnownBits
Simon Pilgrim [Mon, 30 Oct 2017 19:31:08 +0000 (19:31 +0000)]
[SelectionDAG] Add VSELECT demanded elts support to computeKnownBits

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316947 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoX86 Tests: Update the variable-index permute tests with FP types. NFC.
Zvi Rackover [Mon, 30 Oct 2017 19:29:15 +0000 (19:29 +0000)]
X86 Tests: Update the variable-index permute tests with FP types. NFC.

These cases will be addressed in a future update to D39126.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316946 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][SSE] Add another computeKnownBits test showing missing VSELECT demandedelts...
Simon Pilgrim [Mon, 30 Oct 2017 19:19:58 +0000 (19:19 +0000)]
[X86][SSE] Add another computeKnownBits test showing missing VSELECT demandedelts support

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316945 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[SelectionDAG] Add VSELECT support to computeKnownBits
Simon Pilgrim [Mon, 30 Oct 2017 19:08:21 +0000 (19:08 +0000)]
[SelectionDAG] Add VSELECT support to computeKnownBits

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316944 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][SSE] computeKnownBits tests showing missing VSELECT demandedelts support
Simon Pilgrim [Mon, 30 Oct 2017 18:48:31 +0000 (18:48 +0000)]
[X86][SSE] computeKnownBits tests showing missing VSELECT demandedelts support

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316940 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][AVX512] Cleanup scheduler tests - split GENERIC and SKX targets
Simon Pilgrim [Mon, 30 Oct 2017 18:37:27 +0000 (18:37 +0000)]
[X86][AVX512] Cleanup scheduler tests - split GENERIC and SKX targets

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316938 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[SelectionDAG] Add SELECT demanded elts support to ComputeNumSignBits
Simon Pilgrim [Mon, 30 Oct 2017 17:53:51 +0000 (17:53 +0000)]
[SelectionDAG] Add SELECT demanded elts support to ComputeNumSignBits

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316933 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][SSE] ComputeNumSignBits tests showing missing VSELECT demandedelts support
Simon Pilgrim [Mon, 30 Oct 2017 17:46:50 +0000 (17:46 +0000)]
[X86][SSE] ComputeNumSignBits tests showing missing VSELECT demandedelts support

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316932 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[MC] Split out register def/use idx calls to make debugging simpler. NFCI.
Simon Pilgrim [Mon, 30 Oct 2017 17:24:40 +0000 (17:24 +0000)]
[MC] Split out register def/use idx calls to make debugging simpler. NFCI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316927 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][AVX] Add missing vcvtpd2dq/vcvtps2dq scheduling tests
Simon Pilgrim [Mon, 30 Oct 2017 17:23:17 +0000 (17:23 +0000)]
[X86][AVX] Add missing vcvtpd2dq/vcvtps2dq scheduling tests

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316926 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][SSE] Add clflush scheduling test
Simon Pilgrim [Mon, 30 Oct 2017 17:20:50 +0000 (17:20 +0000)]
[X86][SSE] Add clflush scheduling test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316925 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][AVX512] Adding a pattern for broadcastm intrinsic.
Jina Nahias [Mon, 30 Oct 2017 16:37:28 +0000 (16:37 +0000)]
[X86][AVX512] Adding a pattern for broadcastm intrinsic.

Differential Revision: https://reviews.llvm.org/D38312

Change-Id: I71c8605a8e4c98013ef25289694afc5cfd46bb0b

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316921 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoMove isDSOLocal check and add a comment.
Rafael Espindola [Mon, 30 Oct 2017 16:32:31 +0000 (16:32 +0000)]
Move isDSOLocal check and add a comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316920 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[PPC CodeGen] Fix the bitreverse.i64 intrinsic.
Fangrui Song [Mon, 30 Oct 2017 16:03:44 +0000 (16:03 +0000)]
[PPC CodeGen] Fix the bitreverse.i64 intrinsic.

Summary: The two 32-bit words were swapped. Update a test omitted in reverted r316270.

Reviewers: jtony, aaron.ballman

Subscribers: nemanjai, kbarton

Differential Revision: https://reviews.llvm.org/D39163

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316916 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Make sure we don't create locked inc/dec instructions when the carry flag is...
Craig Topper [Mon, 30 Oct 2017 14:51:37 +0000 (14:51 +0000)]
[X86] Make sure we don't create locked inc/dec instructions when the carry flag is being used.

Summary:
INC/DEC don't update the carry flag so we need to make sure we don't try to use it.

This patch introduces new X86ISD opcodes for locked INC/DEC. Teaches lowerAtomicArithWithLOCK to emit these nodes if INC/DEC is not slow or the function is being optimized for size. An additional flag is added that allows the INC/DEC to be disabled if the caller determines that the carry flag is being requested.

The test_sub_1_cmp_1_setcc_ugt test is currently showing this bug. The other test case changes are recovering cases that were regressed in r316860.

This should fully fix PR35068 finishing the fix started in r316860.

Reviewers: RKSimon, zvi, spatel

Reviewed By: zvi

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D39411

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316913 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Remove AVX512 early out from X86FastISel::X86SelectCmp.
Craig Topper [Mon, 30 Oct 2017 14:50:11 +0000 (14:50 +0000)]
[X86] Remove AVX512 early out from X86FastISel::X86SelectCmp.

This shouldn't be needed anymore since i1 isn't a legal type.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316912 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Regenerate test using update_llc_test_checks.py
Craig Topper [Mon, 30 Oct 2017 14:50:10 +0000 (14:50 +0000)]
[X86] Regenerate test using update_llc_test_checks.py

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316911 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[PassManager, SimplifyCFG] add test for PR34603 / D38566; NFC
Sanjay Patel [Mon, 30 Oct 2017 14:34:30 +0000 (14:34 +0000)]
[PassManager, SimplifyCFG] add test for PR34603 / D38566; NFC

Sinking common insts and converting to select early can inhibit better folds in other passes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316908 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AMDGPU] Emit metadata for hidden arguments for kernel enqueue
Yaxun Liu [Mon, 30 Oct 2017 14:30:28 +0000 (14:30 +0000)]
[AMDGPU] Emit metadata for hidden arguments for kernel enqueue

Identifies kernels which performs device side kernel enqueues and emit
metadata for the associated hidden kernel arguments. Such kernels are
marked with calls-enqueue-kernel function attribute by
AMDGPUOpenCLEnqueueKernelLowering pass and later on
hidden kernel arguments metadata HiddenDefaultQueue and
HiddenCompletionAction are emitted for them.

Differential Revision: https://reviews.llvm.org/D39255

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316907 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[CodeGen][ExpandMemcmp] Allow memcmp to expand to vector loads (2).
Clement Courbet [Mon, 30 Oct 2017 14:19:33 +0000 (14:19 +0000)]
[CodeGen][ExpandMemcmp] Allow memcmp to expand to vector loads (2).

 - Targets that want to support memcmp expansions now return the list of
   supported load sizes.
 - Expansion codegen does not assume that all power-of-two load sizes
   smaller than the max load size are valid. For examples, this is not the
   case for x86(32bit)+sse2.

Fixes PR34887.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316905 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[Hexagon] Allow the RDF optimizations to be run in .mir testcases
Krzysztof Parzyszek [Mon, 30 Oct 2017 14:11:52 +0000 (14:11 +0000)]
[Hexagon] Allow the RDF optimizations to be run in .mir testcases

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316904 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[GlobalISel|ARM] : Allow legalizing G_FSUB
Javed Absar [Mon, 30 Oct 2017 13:51:56 +0000 (13:51 +0000)]
[GlobalISel|ARM] : Allow legalizing G_FSUB

Adding support for VSUB.
Reviewed by: @rovka
Differential Revision: https://reviews.llvm.org/D39261

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316902 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoInvalid used of 'w' suffix on push and pop using 64-bit register.
Andrew V. Tischenko [Mon, 30 Oct 2017 12:02:06 +0000 (12:02 +0000)]
Invalid used of 'w' suffix on push and pop using 64-bit register.
Differential Revision: https://reviews.llvm.org/D38626

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316898 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ARM GlobalISel] Fixup r316572. NFC
Diana Picus [Mon, 30 Oct 2017 11:58:09 +0000 (11:58 +0000)]
[ARM GlobalISel] Fixup r316572. NFC

Just missed a few spots...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316897 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRevert "[X86][AVX512] Adding a pattern for broadcastm intrinsic."
Jina Nahias [Mon, 30 Oct 2017 10:35:53 +0000 (10:35 +0000)]
Revert "[X86][AVX512] Adding a pattern for broadcastm intrinsic."

This reverts commit r316890.

Change-Id: I683cceee9848ef309b452293086b1f26a941950d

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316894 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRecommit r315288: [SCCP] Propagate integer range info for parameters in IPSCCP.
Florian Hahn [Mon, 30 Oct 2017 10:07:42 +0000 (10:07 +0000)]
Recommit r315288: [SCCP] Propagate integer range info for parameters in IPSCCP.

This version of the patch includes a fix addressing a stage2 LTO buildbot
failure and addressed some additional nits.

Original commit message:
This updates the SCCP solver to use of the ValueElement lattice for
parameters, which provides integer range information. The range
information is used to remove unneeded icmp instructions.

For the following function, f() can be optimized to ret i32 2 with
this change

    source_filename = "sccp.c"
    target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
    target triple = "x86_64-unknown-linux-gnu"

    ; Function Attrs: norecurse nounwind readnone uwtable
    define i32 @main() local_unnamed_addr #0 {
    entry:
      %call = tail call fastcc i32 @f(i32 1)
      %call1 = tail call fastcc i32 @f(i32 47)
      %add3 = add nsw i32 %call, %call1
      ret i32 %add3
    }

    ; Function Attrs: noinline norecurse nounwind readnone uwtable
    define internal fastcc i32 @f(i32 %x) unnamed_addr #1 {
    entry:
      %c1 = icmp sle i32 %x, 100

      %cmp = icmp sgt i32 %x, 300
      %. = select i1 %cmp, i32 1, i32 2
      ret i32 %.
    }

    attributes #1 = { noinline }

Reviewers: davide, sanjoy, efriedma, dberlin

Reviewed By: davide, dberlin

Subscribers: mcrosier, gberry, mssimpso, dberlin, llvm-commits

Differential Revision: https://reviews.llvm.org/D36656

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316891 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][AVX512] Adding a pattern for broadcastm intrinsic.
Jina Nahias [Mon, 30 Oct 2017 09:59:52 +0000 (09:59 +0000)]
[X86][AVX512] Adding a pattern for broadcastm intrinsic.

Differential Revision: https://reviews.llvm.org/D38312

Change-Id: I6551fb13879e098aed74de410e29815cf37d9ab5

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316890 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[IRCE][NFC] Store Length as SCEV in RangeCheck instead of Value
Max Kazantsev [Mon, 30 Oct 2017 09:35:16 +0000 (09:35 +0000)]
[IRCE][NFC] Store Length as SCEV in RangeCheck instead of Value

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316889 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRevert r316887 to fix buildbot failures.
Florian Hahn [Mon, 30 Oct 2017 09:21:50 +0000 (09:21 +0000)]
Revert r316887 to fix buildbot failures.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316888 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRecommit r315288: [SCCP] Propagate integer range info for parameters in IPSCCP.
Florian Hahn [Mon, 30 Oct 2017 09:04:18 +0000 (09:04 +0000)]
Recommit r315288: [SCCP] Propagate integer range info for parameters in IPSCCP.

This version of the patch includes a fix addressing a stage2 LTO buildbot
failure and addressed some additional nits.

Original commit message:
This updates the SCCP solver to use of the ValueElement lattice for
parameters, which provides integer range information. The range
information is used to remove unneeded icmp instructions.

For the following function, f() can be optimized to ret i32 2 with
this change

    source_filename = "sccp.c"
    target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
    target triple = "x86_64-unknown-linux-gnu"

    ; Function Attrs: norecurse nounwind readnone uwtable
    define i32 @main() local_unnamed_addr #0 {
    entry:
      %call = tail call fastcc i32 @f(i32 1)
      %call1 = tail call fastcc i32 @f(i32 47)
      %add3 = add nsw i32 %call, %call1
      ret i32 %add3
    }

    ; Function Attrs: noinline norecurse nounwind readnone uwtable
    define internal fastcc i32 @f(i32 %x) unnamed_addr #1 {
    entry:
      %c1 = icmp sle i32 %x, 100

      %cmp = icmp sgt i32 %x, 300
      %. = select i1 %cmp, i32 1, i32 2
      ret i32 %.
    }

    attributes #1 = { noinline }

Reviewers: davide, sanjoy, efriedma, dberlin

Reviewed By: davide, dberlin

Subscribers: mcrosier, gberry, mssimpso, dberlin, llvm-commits

Differential Revision: https://reviews.llvm.org/D36656

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316887 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[GVN][NFC] Mark instruction for deletion instead of immediate erasing in LoadPRE
Max Kazantsev [Mon, 30 Oct 2017 04:48:34 +0000 (04:48 +0000)]
[GVN][NFC] Mark instruction for deletion instead of immediate erasing in LoadPRE

It is done to uniformly handle instructions removal.

Differential Revision: https://reviews.llvm.org/D39369

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316884 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Rearrange code in X86InstrInfo.cpp to put all the foldMemoryOperandImpl methods...
Craig Topper [Mon, 30 Oct 2017 04:39:18 +0000 (04:39 +0000)]
[X86] Rearrange code in X86InstrInfo.cpp to put all the foldMemoryOperandImpl methods together without partial/undef register handling in the middle. NFC

I have a future patch that wants to make use of the one of the partial functions in one of the earlier memory folding methods and the current ordering prevents that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316883 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Simplify code by removing an unnecessary temporary variable. NFC
Craig Topper [Mon, 30 Oct 2017 03:35:44 +0000 (03:35 +0000)]
[X86] Simplify code by removing an unnecessary temporary variable. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316882 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Move some EVEX->VEX code to a helper function to prepare for a future patch...
Craig Topper [Mon, 30 Oct 2017 03:35:43 +0000 (03:35 +0000)]
[X86] Move some EVEX->VEX code to a helper function to prepare for a future patch. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316881 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[SelectionDAG] Add SEXT/AND/XOR/Or demanded elts support to ComputeNumSignBits
Simon Pilgrim [Sun, 29 Oct 2017 22:03:37 +0000 (22:03 +0000)]
[SelectionDAG] Add SEXT/AND/XOR/Or demanded elts support to ComputeNumSignBits

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316875 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][SSE] Split ComputeNumSignBits SEXT/AND/XOR/OR demandedelts test
Simon Pilgrim [Sun, 29 Oct 2017 21:35:28 +0000 (21:35 +0000)]
[X86][SSE] Split ComputeNumSignBits SEXT/AND/XOR/OR demandedelts test

Max depth was being exceeded which could prevent some combines working

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316871 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[(new) Pass Manager] instantiate SimplifyCFG with the same options as the old PM
Sanjay Patel [Sun, 29 Oct 2017 20:49:31 +0000 (20:49 +0000)]
[(new) Pass Manager] instantiate SimplifyCFG with the same options as the old PM

The old PM sets the options of what used to be known as "latesimplifycfg" on the
instantiation after the vectorizers have run, so that's what we'redoing here.

FWIW, there's a later SimplifyCFGPass instantiation in both PMs where we do not
set the "late" options. I'm not sure if that's intentional or not.

Differential Revision: https://reviews.llvm.org/D39407

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316869 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][SSE] ComputeNumSignBits tests showing missing SEXT/AND/XOR/OR demandedelts...
Simon Pilgrim [Sun, 29 Oct 2017 20:49:27 +0000 (20:49 +0000)]
[X86][SSE] ComputeNumSignBits tests showing missing SEXT/AND/XOR/OR demandedelts support

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316868 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[SelectionDAG] Add SRA/SHL demanded elts support to ComputeNumSignBits
Simon Pilgrim [Sun, 29 Oct 2017 18:19:37 +0000 (18:19 +0000)]
[SelectionDAG] Add SRA/SHL demanded elts support to ComputeNumSignBits

Introduce a isConstOrDemandedConstSplat helper function that can recognise a constant splat build vector for at least the demanded elts we care about.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316866 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][SSE] ComputeNumSignBits tests showing missing SHL/SRA demandedelts support
Simon Pilgrim [Sun, 29 Oct 2017 18:01:31 +0000 (18:01 +0000)]
[X86][SSE] ComputeNumSignBits tests showing missing SHL/SRA demandedelts support

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316865 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Add a slow-incdec command line to atomic-eflags-reuse.ll
Craig Topper [Sun, 29 Oct 2017 17:15:09 +0000 (17:15 +0000)]
[X86] Add a slow-incdec command line to atomic-eflags-reuse.ll

I believe the test_sub_1_cmp_1_setcc_ugt test case is being miscompiled in the fast inc/dec case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316864 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Remove combine that turns X86ISD::LSUB into X86ISD::LADD. Update patterns that...
Craig Topper [Sun, 29 Oct 2017 06:51:04 +0000 (06:51 +0000)]
[X86] Remove combine that turns X86ISD::LSUB into X86ISD::LADD. Update patterns that depended on this.

If the carry flag is being used, this transformation isn't safe.

This does prevent some test cases from using DEC now, but I'll try to look into that separately.

Fixes PR35068.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316860 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Fix typo in comment. NFC
Craig Topper [Sun, 29 Oct 2017 06:51:02 +0000 (06:51 +0000)]
[X86] Fix typo in comment. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316859 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Use the extended vector register classes in fast isel with AVX512F/VL.
Craig Topper [Sun, 29 Oct 2017 05:14:26 +0000 (05:14 +0000)]
[X86] Use the extended vector register classes in fast isel with AVX512F/VL.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316857 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Add AVX512 support to X86FastISel::X86SelectFPExt and X86FastISel::X86SelectFPT...
Craig Topper [Sun, 29 Oct 2017 02:50:31 +0000 (02:50 +0000)]
[X86] Add AVX512 support to X86FastISel::X86SelectFPExt and X86FastISel::X86SelectFPTrunc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316856 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Use update_llc_test_checks.py to regenerate fast-isel-int-float-conversion.ll
Craig Topper [Sun, 29 Oct 2017 02:25:48 +0000 (02:25 +0000)]
[X86] Use update_llc_test_checks.py to regenerate fast-isel-int-float-conversion.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316855 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Use update_llc_test_checks.py to regenerate fast-isel-fptrunc-fpext.ll
Craig Topper [Sun, 29 Oct 2017 02:18:43 +0000 (02:18 +0000)]
[X86] Use update_llc_test_checks.py to regenerate fast-isel-fptrunc-fpext.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316854 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Add AVX512 support to X86FastISel::X86MaterializeFP
Craig Topper [Sun, 29 Oct 2017 02:18:41 +0000 (02:18 +0000)]
[X86] Add AVX512 support to X86FastISel::X86MaterializeFP

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316853 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Remove invalid code from LowerVSELECT.
Craig Topper [Sat, 28 Oct 2017 23:10:13 +0000 (23:10 +0000)]
[X86] Remove invalid code from LowerVSELECT.

This code attempted to say that v8i16/v16i16 VSELECT is legal if BWI and VLX are enabled, but the only way we could reach this point is if the condition was not a vXi1 type. Which means it really wasn't legal.

We don't have any tests that exercise this code. So I'm hoping it wasn't really reachable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316851 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[SelectionDAG] Add support for INSERT_SUBVECTOR to computeKnownBits
Simon Pilgrim [Sat, 28 Oct 2017 22:10:40 +0000 (22:10 +0000)]
[SelectionDAG] Add support for INSERT_SUBVECTOR to computeKnownBits

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316847 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][SSE] Combine 128-bit target shuffles to PACKSS/PACKUS.
Simon Pilgrim [Sat, 28 Oct 2017 20:51:27 +0000 (20:51 +0000)]
[X86][SSE] Combine 128-bit target shuffles to PACKSS/PACKUS.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316845 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][SSE] Split off matchVectorShuffleWithPACK. NFCI.
Simon Pilgrim [Sat, 28 Oct 2017 20:27:22 +0000 (20:27 +0000)]
[X86][SSE] Split off matchVectorShuffleWithPACK. NFCI.

Split matchVectorShuffleWithPACK from lowerVectorShuffleWithPACK so that we can reuse it for target shuffle combines

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316844 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Fix a mistake in the X86ISelDAGToDAG.cpp code for MUL8r/IMUL8r.
Craig Topper [Sat, 28 Oct 2017 19:56:57 +0000 (19:56 +0000)]
[X86] Fix a mistake in the X86ISelDAGToDAG.cpp code for MUL8r/IMUL8r.

I think this code is unreachable due to some promotions that occur elsewhere. I'll look into that to be sure, but for now I thought I should at least fix the obvious typo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316840 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Replace some default cases in X86SelectShift with llvm_unreachable.
Craig Topper [Sat, 28 Oct 2017 19:56:56 +0000 (19:56 +0000)]
[X86] Replace some default cases in X86SelectShift with llvm_unreachable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316839 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoADT: add a helper to check if the Triple is ARM64
Saleem Abdulrasool [Sat, 28 Oct 2017 19:15:05 +0000 (19:15 +0000)]
ADT: add a helper to check if the Triple is ARM64

Add a trivial helper for checking if the architecture is AArch64 Little
Endian or Big Endian.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316837 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[SimplifyCFG] use pass options and remove the latesimplifycfg pass
Sanjay Patel [Sat, 28 Oct 2017 18:43:07 +0000 (18:43 +0000)]
[SimplifyCFG] use pass options and remove the latesimplifycfg pass

This is no-functional-change-intended.

This is repackaging the functionality of D30333 (defer switch-to-lookup-tables) and
D35411 (defer folding unconditional branches) with pass parameters rather than a named
"latesimplifycfg" pass. Now that we have individual options to control the functionality,
we could decouple when these fire (but that's an independent patch if desired).

The next planned step would be to add another option bit to disable the sinking transform
mentioned in D38566. This should also make it clear that the new pass manager needs to
be updated to limit simplifycfg in the same way as the old pass manager.

Differential Revision: https://reviews.llvm.org/D38631

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316835 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][SSE] Rename truncateVectorCompareWithPACKSS to truncateVectorWithPACKSS. NFC.
Simon Pilgrim [Sat, 28 Oct 2017 17:59:56 +0000 (17:59 +0000)]
[X86][SSE] Rename truncateVectorCompareWithPACKSS to truncateVectorWithPACKSS. NFC.

We no longer rely on the vector source being a comparison result, just have sufficient sign bits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316834 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Correct the alignments on the aligned test cases in fast-isel-vecload.ll to...
Craig Topper [Sat, 28 Oct 2017 17:37:51 +0000 (17:37 +0000)]
[X86] Correct the alignments on the aligned test cases in fast-isel-vecload.ll to make sure they test selection of aligned loads.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316833 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[SelectionDAG] Support 'bit preserving' floating points bitcasts on computeKnownBits...
Simon Pilgrim [Sat, 28 Oct 2017 14:27:53 +0000 (14:27 +0000)]
[SelectionDAG] Support 'bit preserving' floating points bitcasts on computeKnownBits/ComputeNumSignBits

For cases where we know the floating point representations match the bitcasted integer equivalent, allow bitcasting to these types.

This is especially useful for the X86 floating point compare results which return all/zero bits but as a floating point type.

Differential Revision: https://reviews.llvm.org/D39289

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316831 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Add avx command lines to fast-isel-constpool.ll to improve coverage.
Craig Topper [Sat, 28 Oct 2017 06:31:48 +0000 (06:31 +0000)]
[X86] Add avx command lines to fast-isel-constpool.ll to improve coverage.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316829 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Use update_llc_test_checks.py to regenerate fast-isel-constpool.ll
Craig Topper [Sat, 28 Oct 2017 06:31:46 +0000 (06:31 +0000)]
[X86] Use update_llc_test_checks.py to regenerate fast-isel-constpool.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316828 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Add a fast-isel test for the i8 pseudo cmov.
Craig Topper [Sat, 28 Oct 2017 06:10:03 +0000 (06:10 +0000)]
[X86] Add a fast-isel test for the i8 pseudo cmov.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316827 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Remove unneeded MVT::i1 related code from fast isel.
Craig Topper [Sat, 28 Oct 2017 05:52:23 +0000 (05:52 +0000)]
[X86] Remove unneeded MVT::i1 related code from fast isel.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316825 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ConstantFold] Fix a crash when folding a GEP that has vector index
Haicheng Wu [Sat, 28 Oct 2017 02:27:14 +0000 (02:27 +0000)]
[ConstantFold] Fix a crash when folding a GEP that has vector index

LLVM crashes when factoring out an out-of-bound index into preceding dimension
and the preceding dimension uses vector index.  Simply bail out now when this
case happens.

Differential Revision: https://reviews.llvm.org/D38677

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316824 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Add avx command lines to two fast-isel tests to get coverage of selecting vucom...
Craig Topper [Sat, 28 Oct 2017 02:03:59 +0000 (02:03 +0000)]
[X86] Add avx command lines to two fast-isel tests to get coverage of selecting vucomiss/vucomisd.

The selection of these shows up as a code coverage hole when looking at the llvm-cov link on llvm.org

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316823 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Use update_llc_test_checks.py to regenerate fast-isel-select-cmov2.ll
Craig Topper [Sat, 28 Oct 2017 02:03:58 +0000 (02:03 +0000)]
[X86] Use update_llc_test_checks.py to regenerate fast-isel-select-cmov2.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316822 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[PartialInlineLibCalls] Teach PartialInlineLibCalls to honor nobuiltin, properly...
Craig Topper [Sat, 28 Oct 2017 00:36:58 +0000 (00:36 +0000)]
[PartialInlineLibCalls] Teach PartialInlineLibCalls to honor nobuiltin, properly check the function signature, and check TLI::has

Summary:
We shouldn't do this transformation if the function is marked nobuitlin.

We were only checking that the return type is floating point, we really should be checking the argument types and argument count as well. This can be accomplished by using the other version of getLibFunc that takes the Function and not just the name.

We should also be checking TLI::has since sqrtf is a macro on Windows.

Fixes PR32559.

Reviewers: hfinkel, spatel, davide, efriedma

Reviewed By: davide, efriedma

Subscribers: efriedma, llvm-commits, eraman

Differential Revision: https://reviews.llvm.org/D39381

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316819 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ADT] Fix some Clang-tidy modernize and Include What You Use warnings; other minor...
Eugene Zelenko [Sat, 28 Oct 2017 00:24:26 +0000 (00:24 +0000)]
[ADT] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316818 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAMDGPU/GlobalISel: Mark 32-bit G_FADD as legal
Tom Stellard [Fri, 27 Oct 2017 23:57:41 +0000 (23:57 +0000)]
AMDGPU/GlobalISel: Mark 32-bit G_FADD as legal

Reviewers: arsenm

Reviewed By: arsenm

Subscribers: kzhuravl, wdng, nhaehnle, yaxunl, rovka, kristof.beyls, igorb, dstuttard, tpr, t-tye, llvm-commits

Differential Revision: https://reviews.llvm.org/D38439

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316815 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[support] remove tautological comparison in Support/Windows/Path.inc
Bob Haarman [Fri, 27 Oct 2017 23:41:17 +0000 (23:41 +0000)]
[support] remove tautological comparison in Support/Windows/Path.inc

Summary:
The removed code checks that we are able to handle a 64-bit number, but
the code we're calling takes two dwords (for a total of 64 bits), so this
is always true.

Reviewers: zturner, rnk, majnemer, compnerd

Reviewed By: zturner

Subscribers: amccarth, hiraditya, lebedev.ri, llvm-commits

Differential Revision: https://reviews.llvm.org/D39263

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316814 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRevert "Add support for writing 64-bit symbol tables for archives when offsets become...
Jake Ehrlich [Fri, 27 Oct 2017 23:39:31 +0000 (23:39 +0000)]
Revert "Add support for writing 64-bit symbol tables for archives when offsets become too large for 32-bit"

This reverts commit r316805.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316813 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAdd support for writing 64-bit symbol tables for archives when offsets become too...
Jake Ehrlich [Fri, 27 Oct 2017 22:26:37 +0000 (22:26 +0000)]
Add support for writing 64-bit symbol tables for archives when offsets become too large for 32-bit

This should fix https://bugs.llvm.org//show_bug.cgi?id=34189

This change makes it so that if writing a K_GNU style archive, you need
to output a > 32-bit offset it should output in K_GNU64 style instead.

Differential Revision: https://reviews.llvm.org/D36812

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316805 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[Hexagon] Adjust patterns to reflect instruction selection preferences
Krzysztof Parzyszek [Fri, 27 Oct 2017 22:24:49 +0000 (22:24 +0000)]
[Hexagon] Adjust patterns to reflect instruction selection preferences

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316804 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAdd a few missing headers for modularization/IWYU/etc
David Blaikie [Fri, 27 Oct 2017 22:12:46 +0000 (22:12 +0000)]
Add a few missing headers for modularization/IWYU/etc

Several cases where class definitions are required for DenseMap pointer
traits handling.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316803 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[DAGCombine] Don't combine sext with extload if sextload is not supported and extload...
Guozhi Wei [Fri, 27 Oct 2017 21:54:24 +0000 (21:54 +0000)]
[DAGCombine] Don't combine sext with extload if sextload is not supported and extload has multi users

In function DAGCombiner::visitSIGN_EXTEND_INREG, sext can be combined with extload even if sextload is not supported by target, then

  if sext is the only user of extload, there is no big difference, no harm no benefit.
  if extload has more than one user, the combined sextload may block extload from combining with other zext, causes extra zext instructions generated. As demonstrated by the attached test case.

This patch add the constraint that when sextload is not supported by target, sext can only be combined with extload if it is the only user of extload.

Differential Revision: https://reviews.llvm.org/D39108

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316802 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoMake 32-bit member offset in Archive::Symbol::getMember 64-bit
Jake Ehrlich [Fri, 27 Oct 2017 21:47:38 +0000 (21:47 +0000)]
Make 32-bit member offset in Archive::Symbol::getMember 64-bit

When accessing a member for a symbol with an offset greater than 2^32 -
1 the current Archive::Symbol::getMember implementation will overflow
and cause unexpected behavior. This change simply fixes that. In
particular if you call "llvm-nm --print-armap" on an archive that has
this behavior you'll get an error.

Differential Revision: https://reviews.llvm.org/D39379

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316801 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoHandle undefined weak hidden symbols on all architectures.
Rafael Espindola [Fri, 27 Oct 2017 21:18:48 +0000 (21:18 +0000)]
Handle undefined weak hidden symbols on all architectures.

We were handling the non-hidden case in lib/Target/TargetMachine.cpp,
but the hidden case was handled in architecture dependent code and
only X86_64 and AArch64 were covered.

While it is true that some code sequences in some ABIs might be able
to produce the correct value at runtime, that doesn't seem to be the
common case.

I left the AArch64 code in place since it also forces a got access for
non-pic code. It is not clear if that is needed, but it is probably
better to change that in another commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316799 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoForce #define GTEST_LANG_CXX11.
Zachary Turner [Fri, 27 Oct 2017 21:12:28 +0000 (21:12 +0000)]
Force #define GTEST_LANG_CXX11.

gtest depends on this #define to determine whether it can
use various classes like std::tuple, or whether it has to fall
back to experimental classes in the std::tr1 namespace.  The
check in the current version of gtest relies on the value of
the `__cplusplus` macro, but MSVC provides a non-conformant
value of this macro, making it effectively impossible to detect
C++11.  In short, LLVM compiled with MSVC has been silently
using the tr1 versions of several classes since the beginning of
time.

This would normally be pretty benign, except that in the latest
preview of MSVC they have marked all of the tr1 classes
deprecated, so it spews thousands of warnings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316798 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Remove fast-isel code for handling i8 shifts. This is handled by auto generated...
Craig Topper [Fri, 27 Oct 2017 21:00:59 +0000 (21:00 +0000)]
[X86] Remove fast-isel code for handling i8 shifts. This is handled by auto generated code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316797 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Add fast-isel tests for integer shifts. We definitely had no coverage of i16...
Craig Topper [Fri, 27 Oct 2017 21:00:56 +0000 (21:00 +0000)]
[X86] Add fast-isel tests for integer shifts. We definitely had no coverage of i16 and i32/i64 are only tested by larger tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316796 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoImprove clamp recognition in ValueTracking.
Artur Gainullin [Fri, 27 Oct 2017 20:53:41 +0000 (20:53 +0000)]
Improve clamp recognition in ValueTracking.

Summary:
ValueTracking was recognizing not all variations of clamp. Swapping of
true value and false value of select was added to fix this problem. The
first patch was reverted because it caused miscompile in NVPTX target.
Added corresponding test cases.

Reviewers: spatel, majnemer, efriedma, reames

Subscribers: llvm-commits, jholewinski

Differential Revision: https://reviews.llvm.org/D39240

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316795 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Teach fastisel to use VLX VMOVNTDQA for v4f64 and 256-bit integers when available.
Craig Topper [Fri, 27 Oct 2017 20:13:10 +0000 (20:13 +0000)]
[X86] Teach fastisel to use VLX VMOVNTDQA for v4f64 and 256-bit integers when available.

This looks to have been missed from r280682.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316790 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Add avx512vl command line to fast-isel-nontemporal.ll
Craig Topper [Fri, 27 Oct 2017 20:13:06 +0000 (20:13 +0000)]
[X86] Add avx512vl command line to fast-isel-nontemporal.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316789 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoFix llvm-special-case-list-fuzzer regexp exception
Vlad Tsyrklevich [Fri, 27 Oct 2017 19:15:13 +0000 (19:15 +0000)]
Fix llvm-special-case-list-fuzzer regexp exception

Summary:
Original oss-fuzz report:
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=3727#c2

The minimized test case that causes this failure:
5b 5b 5b 3d 47 53 00 5b  3d 5d 5b 5d 0a     [[[=GS.[=][].

Note the string "=GS\x00". The failure happens because the code is
searching the string against an array of known collated names. "GS\x00"
is a hit, but since len takes into account an extra NUL byte, indexing
into cp->name[len] goes one byte past it's allocated memory. Fix this to
use a strlen(cp->name) comparison to account for NUL bytes in the input.

Reviewers: pcc

Reviewed By: pcc

Subscribers: hctim, kcc

Differential Revision: https://reviews.llvm.org/D39380

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316786 91177308-0d34-0410-b5e6-96231b3b80d8