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8 years ago[AArch64] Fix a typo. NFC.
Chad Rosier [Fri, 1 Apr 2016 17:34:38 +0000 (17:34 +0000)]
[AArch64] Fix a typo. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265160 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[InstCombine] Don't sink an instr after a catchswitch
David Majnemer [Fri, 1 Apr 2016 17:28:17 +0000 (17:28 +0000)]
[InstCombine] Don't sink an instr after a catchswitch

A catchswitch is a terminator, instructions cannot be inserted after it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265158 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[SLPVectorizer] Don't insert an extractelement before a catchswitch
David Majnemer [Fri, 1 Apr 2016 17:28:15 +0000 (17:28 +0000)]
[SLPVectorizer] Don't insert an extractelement before a catchswitch

A catchswitch cannot be preceded by another instruction in the same
basic block (other than a PHI node).

Instead, insert the extract element right after the materialization of
the vectorized value.  This isn't optimal but is a reasonable compromise
given the constraints of WinEH.

This fixes PR27163.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265157 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[PGO] Refactor PGOFuncName meta data code to be used in clang
Rong Xu [Fri, 1 Apr 2016 16:43:30 +0000 (16:43 +0000)]
[PGO] Refactor PGOFuncName meta data code to be used in clang

Refactor the code that gets and creates PGOFuncName meta data so that it can be
used in clang's value profile annotation.

Differential Revision: http://reviews.llvm.org/D18623

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265149 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[x86] avoid intermediate splat for non-zero memsets (PR27100)
Sanjay Patel [Fri, 1 Apr 2016 16:27:14 +0000 (16:27 +0000)]
[x86] avoid intermediate splat for non-zero memsets (PR27100)

Follow-up to D18566 - where we noticed that an intermediate splat was being
generated for memsets of non-zero chars.

That was because we told getMemsetStores() to use a 32-bit vector element type,
and it happily obliged by producing that constant using an integer multiply.

The tests that were added in the last patch are now equivalent for AVX1 and AVX2
(no splats, just a vector load), but we have PR27141 to track that splat difference.
In the new tests, the splat via shuffling looks ok to me, but there might be some
room for improvement depending on uarch there.

Note that the SSE1/2 paths are not changed in this patch. That can be a follow-up.
This patch should resolve PR27100.

Differential Revision: http://reviews.llvm.org/D18676

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265148 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[ADT] Make StringMap's tombstone aligned.
Benjamin Kramer [Fri, 1 Apr 2016 15:51:51 +0000 (15:51 +0000)]
[ADT] Make StringMap's tombstone aligned.

This avoids undefined behavior when casting pointers to it. Also make
sure that we don't cast to a derived StringMapEntry before checking for
tombstone, as that may have different alignment requirements.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265145 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[PGOProfile] Rename a test to make it more reusable, NFC
Vedant Kumar [Fri, 1 Apr 2016 15:45:33 +0000 (15:45 +0000)]
[PGOProfile] Rename a test to make it more reusable, NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265144 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[AMDGPU] fix MADAK/MADMK instructions operand namings to match encoding fields.
Valery Pykhtin [Fri, 1 Apr 2016 13:13:12 +0000 (13:13 +0000)]
[AMDGPU] fix MADAK/MADMK instructions operand namings to match encoding fields.

$vsrc1 -> $src1, $k -> $imm

Differential Revision: http://reviews.llvm.org/D18659

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265141 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[x86] Remove redundant call to setTargetDAGCombine for BUILD_VECTOR node type.
Andrea Di Biagio [Fri, 1 Apr 2016 12:25:44 +0000 (12:25 +0000)]
[x86] Remove redundant call to setTargetDAGCombine for BUILD_VECTOR node type.

Since revision 235394, we no longer perform target specific combines on
build_vector nodes. No functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265138 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[X86][AVX512] Regenerated intrinsics tests
Simon Pilgrim [Fri, 1 Apr 2016 11:57:51 +0000 (11:57 +0000)]
[X86][AVX512] Regenerated intrinsics tests

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265135 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[MIPS][LLVM-MC] Fix JR encoding for MIPSR6 ISA
Sagar Thakur [Fri, 1 Apr 2016 11:55:33 +0000 (11:55 +0000)]
[MIPS][LLVM-MC] Fix JR encoding for MIPSR6 ISA

Summary: The assembler was picking the wrong JR variant because the pre-R6 one was still enabled at R6.

Author: nitesh.jain
Reviewers: vkalintiris, dsanders
Subscribers: dsanders, llvm-commits, mohit.bhakkad, sagar, bhushan, jaydeep
Differential: D18387

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265134 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[ThinLTO] Fix uninitialized flags.
Benjamin Kramer [Fri, 1 Apr 2016 11:49:59 +0000 (11:49 +0000)]
[ThinLTO] Fix uninitialized flags.

Found by msan. Patch by Adrian Kuegel!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265133 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[X86] Introduce Lakemont CPU.
Andrey Turetskiy [Fri, 1 Apr 2016 10:16:15 +0000 (10:16 +0000)]
[X86] Introduce Lakemont CPU.

Add a new Intel MCU CPU Lakemont, which doesn't support X87.

Differential Revision: http://reviews.llvm.org/D18650

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265128 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix for pr24346: arm asm label calculation error in sub
James Molloy [Fri, 1 Apr 2016 09:40:47 +0000 (09:40 +0000)]
Fix for pr24346: arm asm label calculation error in sub

Some ARM instructions encode 32-bit immediates as a 8-bit integer (0-255)
and a 4-bit rotation (0-30, even) in its least significant 12 bits. The
original fixup, FK_Data_4, patches the instruction by the value bit-to-bit,
regardless of the encoding. For example, assuming the label L1 and L2 are
0x0 and 0x104 respectively, the following instruction:

  add r0, r0, #(L2 - L1) ; expects 0x104, i.e., 260

would be assembled to the following, which adds 1 to r0, instead of 260:

  e2800104 add r0, r0, #4, 2 ; equivalently 1

The new fixup kind fixup_arm_mod_imm takes care of the encoding:

  e2800f41 add r0, r0, #260

Patch by Ting-Yuan Huang!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265122 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[AArch64] Better errors for out-of-range fixups
Oliver Stannard [Fri, 1 Apr 2016 09:14:50 +0000 (09:14 +0000)]
[AArch64] Better errors for out-of-range fixups

When a fixup that can be resolved by the assembler is out of range, we should
report an error in the source, rather than crashing.

Differential Revision: http://reviews.llvm.org/D18402

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265120 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoThinLTO: move ObjCARCContractPass in the CodeGen pipeline
Mehdi Amini [Fri, 1 Apr 2016 08:22:59 +0000 (08:22 +0000)]
ThinLTO: move ObjCARCContractPass in the CodeGen pipeline

This is to be coherent with Full LTO.

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265118 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[OCaml] Use LLVMCreateMessage with constant strings when calling llvm_raise
Jeroen Ketema [Fri, 1 Apr 2016 07:56:17 +0000 (07:56 +0000)]
[OCaml] Use LLVMCreateMessage with constant strings when calling llvm_raise

The llvm_string_of_message function, called by llvm_raise, calls
LLVMDisposeMessage, which expects the message to be dynamically
allocated; it fails freeing the message otherwise. So always
dynamically allocate with LLVMCreateMessage.

Differential Revision: http://reviews.llvm.org/D18675

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265116 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[OCaml] Reinstate data_layout
Jeroen Ketema [Fri, 1 Apr 2016 07:54:24 +0000 (07:54 +0000)]
[OCaml] Reinstate data_layout

Expose LLVMCreateTargetMachineData as data_layout.

As r263530 did for go. From that commit: "LLVMGetTargetDataLayout was
removed from the C API, and then TargetMachine.TargetData was removed.
Later, LLVMCreateTargetMachineData was added to the C API"

Differential Revision: http://reviews.llvm.org/D18677

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265115 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd a libLTO API to stop/restart ThinLTO between optimizations and CodeGen
Mehdi Amini [Fri, 1 Apr 2016 06:47:02 +0000 (06:47 +0000)]
Add a libLTO API to stop/restart ThinLTO between optimizations and CodeGen

This allows the linker to instruct ThinLTO to perform only the
optimization part or only the codegen part of the process.

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265113 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[PPC64] Bug fix: when enabling sibling-call-opt and shrink-wrapping, the tail call...
Chuang-Yu Cheng [Fri, 1 Apr 2016 06:44:32 +0000 (06:44 +0000)]
[PPC64] Bug fix: when enabling sibling-call-opt and shrink-wrapping, the tail call branch instruction might disappear

Bug Pattern:
    # BB#0:                                 # %entry
    cmpldi  3, 0
    beq-  0, .LBB0_2
    # BB#1:                                 # %exit
    lwz 4, 0(3)
    #TC_RETURNd8 LVComputationKind 0
    .LBB0_2:                                # %cond.false
    mflr 0
    std 0, 16(1)
    stdu 1, -96(1)
    .Ltmp0:
    .cfi_def_cfa_offset 96
    .Ltmp1:
    .cfi_offset lr, 16
    bl __assert_fail
    nop

The branch instruction for tail call return is not generated, because the
shrink-wrapping pass choosing a new Restore Point: %cond.false, so %exit
block is not sent to emitEpilogue, that's why the branch is not generated.

Thanks Kit's opinions!
Reviewers: nemanjai hfinkel tjablin kbarton

http://reviews.llvm.org/D17606

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265112 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd a module Hash in the bitcode and the combined index, implementing a kind of ...
Mehdi Amini [Fri, 1 Apr 2016 05:33:11 +0000 (05:33 +0000)]
Add a module Hash in the bitcode and the combined index, implementing a kind of "build-id"

This is intended to be used for ThinLTO incremental build.

Differential Revision: http://reviews.llvm.org/D18213

This is a recommit of r265095 after fixing the Windows issues.

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265111 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix MSVC warning "comparison of integers of different signs" (NFC)
Mehdi Amini [Fri, 1 Apr 2016 05:19:14 +0000 (05:19 +0000)]
Fix MSVC warning "comparison of integers of different signs" (NFC)

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265110 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix S390 big endian detection
Mehdi Amini [Fri, 1 Apr 2016 05:12:24 +0000 (05:12 +0000)]
Fix S390 big endian detection

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265109 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoConst correctness in raw_sha1_ostream (NFC)
Mehdi Amini [Fri, 1 Apr 2016 05:12:18 +0000 (05:12 +0000)]
Const correctness in raw_sha1_ostream (NFC)

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265108 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd support for computing SHA1 in LLVM
Mehdi Amini [Fri, 1 Apr 2016 04:30:16 +0000 (04:30 +0000)]
Add support for computing SHA1 in LLVM

Provide a class to generate a SHA1 from a sequence of bytes, and
a convenience raw_ostream adaptor.
This will be used to provide a "build-id" by hashing the Module
block when writing bitcode. ThinLTO will use this information for
incremental build.

Reapply r265094 which was reverted in r265102 because it broke
MSVC bots (constexpr is not supported).

http://reviews.llvm.org/D16325

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265107 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoImprove CHECK-NOT robustness of dllexport tests
Sean Silva [Fri, 1 Apr 2016 03:54:03 +0000 (03:54 +0000)]
Improve CHECK-NOT robustness of dllexport tests

This changes some dllexport tests, to verify that some symbols that
should not be exported are not, in a way that improves the robustness
of CHECK-SAME interaction with CHECK-NOT.

We plan to enable dllimport/dllexport support for the PS4, and these
changes are for points we noticed in our internal testing.

Patch by Warren Ristow!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265106 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoUse range-based for loops. NFC.
Michael Kuperstein [Fri, 1 Apr 2016 03:45:08 +0000 (03:45 +0000)]
Use range-based for loops. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265105 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRevert "Add support for computing SHA1 in LLVM"
Mehdi Amini [Fri, 1 Apr 2016 03:03:21 +0000 (03:03 +0000)]
Revert "Add support for computing SHA1 in LLVM"

This reverts commit r265096, r265095, and r265094.
Windows build is broken, and the validation does not pass.

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265102 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoDon't insert stackrestore on deoptimizing returns
Sanjoy Das [Fri, 1 Apr 2016 02:51:30 +0000 (02:51 +0000)]
Don't insert stackrestore on deoptimizing returns

They're not necessary (since the stack pointer is trivially restored on
return), and the way LLVM inserts the stackrestore calls breaks the
IR (we get a stackrestore between the deoptimize call and the return).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265101 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoDon't insert lifetime end markers on deoptimizing returns
Sanjoy Das [Fri, 1 Apr 2016 02:51:26 +0000 (02:51 +0000)]
Don't insert lifetime end markers on deoptimizing returns

They're not necessary (since the lifetime of the alloca is trivially
over due to the return), and the way LLVM inserts the lifetime.end
markers breaks the IR (we get a lifetime end marker between the
deoptimize call and the return).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265100 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoDon't use an i64 return type with webkit_jscc
Sanjoy Das [Fri, 1 Apr 2016 02:51:21 +0000 (02:51 +0000)]
Don't use an i64 return type with webkit_jscc

Re-enable an assertion enabled by Justin Lebar in rL265092.  rL265092
was breaking test/CodeGen/X86/deopt-intrinsic.ll because webkit_jscc
does not like non-i64 return types.  Change the test case to not do
that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265099 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAArch64ISelLowering: Remove unused variables/arguments; NFC
Matthias Braun [Fri, 1 Apr 2016 02:49:17 +0000 (02:49 +0000)]
AArch64ISelLowering: Remove unused variables/arguments; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265098 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix Sub-register Rewriting in Aggressive Anti-Dependence Breaker
Chuang-Yu Cheng [Fri, 1 Apr 2016 02:05:29 +0000 (02:05 +0000)]
Fix Sub-register Rewriting in Aggressive Anti-Dependence Breaker

Previously, HandleLastUse would delete RegRef information for sub-registers
if they were dead even if their corresponding super-register were still live.

If the super-register were later renamed, then the definitions of the
sub-register would not be updated appropriately. This patch alters the
behavior so that RegInfo information for sub-registers is only deleted when
the sub-register and super-register are both dead.

This resolves PR26775. This is the mirror image of Hal's r227311 commit.

Author: Tom Jablin (tjablin)
Reviewers: kbarton uweigand nemanjai hfinkel

http://reviews.llvm.org/D18448

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265097 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd missing test for the "Module hash in bitcode" added in r265095
Mehdi Amini [Fri, 1 Apr 2016 01:37:52 +0000 (01:37 +0000)]
Add missing test for the "Module hash in bitcode" added in r265095

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265096 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd a module Hash in the bitcode and the combined index, implementing a kind of ...
Mehdi Amini [Fri, 1 Apr 2016 01:30:06 +0000 (01:30 +0000)]
Add a module Hash in the bitcode and the combined index, implementing a kind of "build-id"

This is intended to be used for ThinLTO incremental build.

Differential Revision: http://reviews.llvm.org/D18213

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265095 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd support for computing SHA1 in LLVM
Mehdi Amini [Fri, 1 Apr 2016 01:29:54 +0000 (01:29 +0000)]
Add support for computing SHA1 in LLVM

Provide a class to generate a SHA1 from a sequence of bytes, and
a convenience raw_ostream adaptor.
This will be used to provide a "build-id" by hashing the Module
block when writing bitcode. ThinLTO will use this information for
incremental build.

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265094 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRevert "Protect some assertions with NDEBUG rather than DEBUG()."
Justin Lebar [Fri, 1 Apr 2016 01:23:23 +0000 (01:23 +0000)]
Revert "Protect some assertions with NDEBUG rather than DEBUG()."

This reverts r265092, because it breaks CodeGen/X86/deopt-intrinsic.ll.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265093 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoProtect some assertions with NDEBUG rather than DEBUG().
Justin Lebar [Fri, 1 Apr 2016 01:09:12 +0000 (01:09 +0000)]
Protect some assertions with NDEBUG rather than DEBUG().

DEBUG() only runs if you pass -debug, but these assertions are generally
useful.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265092 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[NVPTX] Add a truncate DAG node to some calls.
Justin Lebar [Fri, 1 Apr 2016 01:09:10 +0000 (01:09 +0000)]
[NVPTX] Add a truncate DAG node to some calls.

Summary:
Previously, we were running afoul of the assertion

  EVT(CLI.Ins[i].VT) == InVals[i].getValueType() && "LowerCall emitted a value with the wrong type!"

in SelectionDAGBuilder.cpp when running the NVPTX/i8-param.ll test.
This is because our backend (for some reason) treats small return values
as i32, but it wasn't ever truncating the i32 back down to the expected
width in the DAG.

Unclear to me whether this fixes any actual bugs -- in this test, at
least, the generated code is unchanged.

Reviewers: jingyue

Subscribers: llvm-commits, tra, jholewinski

Differential Revision: http://reviews.llvm.org/D17872

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265091 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[NVPTX] Read __CUDA_FTZ from module flags in NVVMReflect.
Justin Lebar [Fri, 1 Apr 2016 01:09:07 +0000 (01:09 +0000)]
[NVPTX] Read __CUDA_FTZ from module flags in NVVMReflect.

Summary:
Previously the NVVMReflect pass would read its configuration from
command-line flags or a static configuration given to the pass at
instantiation time.

This doesn't quite work for clang's use-case.  It needs to pass a value
for __CUDA_FTZ down on a per-module basis.  We use a module flag for
this, so the NVVMReflect pass needs to be updated to read said flag.

Reviewers: tra, rnk

Subscribers: cfe-commits, jholewinski

Differential Revision: http://reviews.llvm.org/D18672

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265090 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[NVPTX] Annotate some instructions as hasSideEffects = 0.
Justin Lebar [Fri, 1 Apr 2016 01:09:05 +0000 (01:09 +0000)]
[NVPTX] Annotate some instructions as hasSideEffects = 0.

Summary:
Tablegen tries to infer this from the selection DAG patterns defined for
the instructions, but it can't always.

An instructive example is CLZr64.  CLZr32 is correctly inferred to have
no side-effects, but the selection DAG pattern for CLZr64 is slightly
more complicated, and in particular the ctlz DAG node is not at the root
of the pattern.  Thus tablegen can't infer that CLZr64 has no
side-effects.

Reviewers: jholewinski

Subscribers: jholewinski, tra, llvm-commits

Differential Revision: http://reviews.llvm.org/D17472

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265089 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[ifcnv] Add brief comment explaining what ifcnv is.
Justin Lebar [Fri, 1 Apr 2016 01:09:03 +0000 (01:09 +0000)]
[ifcnv] Add brief comment explaining what ifcnv is.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265088 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix Windows build (typo in disk_space() implementation)
Mehdi Amini [Fri, 1 Apr 2016 00:52:05 +0000 (00:52 +0000)]
Fix Windows build (typo in disk_space() implementation)

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265087 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[LoopVectorize] Don't unconditionally print vectorization diagnostics
Akira Hatanaka [Fri, 1 Apr 2016 00:34:39 +0000 (00:34 +0000)]
[LoopVectorize] Don't unconditionally print vectorization diagnostics
when compiling with LTO.

r244523 a new class DiagnosticInfoOptimizationRemarkAnalysisAliasing for
optimization analysis remarks related to pointer aliasing without
guarding it in isDiagnosticEnabled in LLVMContext.cpp. This caused the
diagnostic message to be printed unconditionally when compiling with
LTO.

This commit cleans up isDiagnosticEnabled and makes sure all the
vectorization optimization remarks are guarded.

rdar://problem/25382153

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265084 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd disk_space() to llvm::fs
Mehdi Amini [Fri, 1 Apr 2016 00:18:08 +0000 (00:18 +0000)]
Add disk_space() to llvm::fs

Summary: Adapted from Boost::filesystem.
(This is a reapply by reverting commit r265080 and fixing the WinAPI part)

Differential Revision: http://reviews.llvm.org/D18467

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265082 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agotestcase gardening: update the emissionKind enum to the new syntax. (NFC)
Adrian Prantl [Fri, 1 Apr 2016 00:16:49 +0000 (00:16 +0000)]
testcase gardening: update the emissionKind enum to the new syntax. (NFC)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265081 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRevert "Add disk_space() to llvm::fs"
Mehdi Amini [Fri, 1 Apr 2016 00:13:31 +0000 (00:13 +0000)]
Revert "Add disk_space() to llvm::fs"

This reverts commit r265074 and r265068.
Breaks windows build

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265080 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix a captialization error in r265077.
Adrian Prantl [Fri, 1 Apr 2016 00:00:27 +0000 (00:00 +0000)]
Fix a captialization error in r265077.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265079 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMove the DebugEmissionKind enum from DIBuilder into DICompileUnit.
Adrian Prantl [Thu, 31 Mar 2016 23:56:58 +0000 (23:56 +0000)]
Move the DebugEmissionKind enum from DIBuilder into DICompileUnit.

This mostly cosmetic patch moves the DebugEmissionKind enum from DIBuilder
into DICompileUnit. DIBuilder is not the right place for this enum to live
in â€” a metadata consumer should not have to include DIBuilder.h.
I also added a Verifier check that checks that the emission kind of a
DICompileUnit is actually legal.

http://reviews.llvm.org/D18612
<rdar://problem/25427165>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265077 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFollow-up to r265036: I got these iterators mixed up
Hans Wennborg [Thu, 31 Mar 2016 23:55:16 +0000 (23:55 +0000)]
Follow-up to r265036: I got these iterators mixed up

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265076 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoclang-format the large enum definitions in LLVMBitCodes.h
Mehdi Amini [Thu, 31 Mar 2016 23:27:37 +0000 (23:27 +0000)]
clang-format the large enum definitions in LLVMBitCodes.h

Suggestion from Duncan in a review thread.

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265075 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoUse const ref instead of value for Twine in the disk_space() API
Mehdi Amini [Thu, 31 Mar 2016 23:14:45 +0000 (23:14 +0000)]
Use const ref instead of value for Twine in the disk_space() API

Thanks Rui for noticing!

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265074 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agolit: python3 compatibility fix
Matthias Braun [Thu, 31 Mar 2016 23:08:55 +0000 (23:08 +0000)]
lit: python3 compatibility fix

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265070 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoCreate thin archive in GNU format to fix test on OS X.
Peter Collingbourne [Thu, 31 Mar 2016 23:07:50 +0000 (23:07 +0000)]
Create thin archive in GNU format to fix test on OS X.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265069 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd disk_space() to llvm::fs
Mehdi Amini [Thu, 31 Mar 2016 23:05:26 +0000 (23:05 +0000)]
Add disk_space() to llvm::fs

Summary: Adapted from Boost::filesystem.
(This is a reapply by reverting commit r265062 and fixing the WinAPI part)

Differential Revision: http://reviews.llvm.org/D18467

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265068 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMove asm-printer-topological-order.ll to PowerPC backend
Tim Shen [Thu, 31 Mar 2016 22:32:10 +0000 (22:32 +0000)]
Move asm-printer-topological-order.ll to PowerPC backend

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265067 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoObject: Add function for moving thin archive object buffer vector out of Archive.
Peter Collingbourne [Thu, 31 Mar 2016 22:08:57 +0000 (22:08 +0000)]
Object: Add function for moving thin archive object buffer vector out of Archive.

Differential Revision: http://reviews.llvm.org/D18664

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265066 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoObject: Correctly read thin archives containing absolute paths.
Peter Collingbourne [Thu, 31 Mar 2016 22:08:31 +0000 (22:08 +0000)]
Object: Correctly read thin archives containing absolute paths.

Differential Revision: http://reviews.llvm.org/D18666

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265065 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[AsmPrinter] Print aliases in topological order
Tim Shen [Thu, 31 Mar 2016 22:08:19 +0000 (22:08 +0000)]
[AsmPrinter] Print aliases in topological order

Print aliases in topological order, that is, for any alias a = b,
b must be printed before a. This is because on some targets (e.g. PowerPC)
linker expects aliases in such an order to generate correct TOC information.

GCC also prints aliases in topological order.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265064 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix PR26940 where compiles times regressed massively.
Chandler Carruth [Thu, 31 Mar 2016 21:55:58 +0000 (21:55 +0000)]
Fix PR26940 where compiles times regressed massively.

Patch by Jonas Paulsson. Original description:
Bugfix in buildSchedGraph() to make -dag-maps-huge-region work properly

I found that the reduction of the maps did in fact never happen in this
test case. This was because *all* the stores / loads were made with
addresses from arguments and they thus became "unknown" stores / loads.
Fixed by removing continue statements and making sure that the test for
reduction always takes place.

Differential Revision: http://reviews.llvm.org/D18673

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265063 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRevert "Add disk_space() to llvm::fs"
Mehdi Amini [Thu, 31 Mar 2016 21:55:35 +0000 (21:55 +0000)]
Revert "Add disk_space() to llvm::fs"

Breaks windows bot.
This reverts commit r265050.
This reverts commit r265055.

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265062 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoPreserve blockaddress use edges in the module splitter.
Evgeniy Stepanov [Thu, 31 Mar 2016 21:55:11 +0000 (21:55 +0000)]
Preserve blockaddress use edges in the module splitter.

"blockaddress" can not apply to an external function. All
blockaddress constant uses must belong to the same module as the
definition of the target function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265061 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[NVPTX] Infer __nvvm_reflect as nounwind, readnone
David Majnemer [Thu, 31 Mar 2016 21:29:57 +0000 (21:29 +0000)]
[NVPTX] Infer __nvvm_reflect as nounwind, readnone

This patch simply mirrors the attributes we give to @llvm.nvvm.reflect
to the __nvvm_reflect libdevice call.  This shaves about 30% of the code
in libdevice away because of CSE opportunities.  It's also helps us
figure out that libdevice implementations of transcendental functions
don't have side-effects.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265060 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoWdocumentation parameter fix
Simon Pilgrim [Thu, 31 Mar 2016 21:13:49 +0000 (21:13 +0000)]
Wdocumentation parameter fix

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265055 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agofix typo; NFC
Sanjay Patel [Thu, 31 Mar 2016 21:00:48 +0000 (21:00 +0000)]
fix typo; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265054 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFixed signed/unsigned warning
Simon Pilgrim [Thu, 31 Mar 2016 20:57:36 +0000 (20:57 +0000)]
Fixed signed/unsigned warning

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265052 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[AArch64] Allow loads with imp-def to be handled in getMemOpBaseRegImmOfsWidth()
Jun Bum Lim [Thu, 31 Mar 2016 20:53:47 +0000 (20:53 +0000)]
[AArch64] Allow loads with imp-def to be handled in getMemOpBaseRegImmOfsWidth()

Summary:
This change will allow loads with imp-def to be clustered in machine-scheduler pass.
areMemAccessesTriviallyDisjoint() can also handle loads with imp-def.

Reviewers: mcrosier, jmolloy, t.p.northover

Subscribers: aemerson, rengolin, mcrosier, llvm-commits

Differential Revision: http://reviews.llvm.org/D18665

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265051 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd disk_space() to llvm::fs
Mehdi Amini [Thu, 31 Mar 2016 20:48:27 +0000 (20:48 +0000)]
Add disk_space() to llvm::fs

Summary: Adapted from Boost::filesystem.

Reviewers: bruno, silvas

Subscribers: tberghammer, danalbert, llvm-commits, srhines

Differential Revision: http://reviews.llvm.org/D18467

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265050 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[PowerPC] Cleanup test/CodeGen/PowerPC/qpx-load-splat.ll
Hal Finkel [Thu, 31 Mar 2016 20:45:00 +0000 (20:45 +0000)]
[PowerPC] Cleanup test/CodeGen/PowerPC/qpx-load-splat.ll

Removing unnecessary attributes and metadata...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265049 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[x86] add memset tests to show another potential improvement
Sanjay Patel [Thu, 31 Mar 2016 20:40:32 +0000 (20:40 +0000)]
[x86] add memset tests to show another potential improvement

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265048 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[PowerPC] Add a late MI-level pass for QPX load/splat simplification
Hal Finkel [Thu, 31 Mar 2016 20:39:41 +0000 (20:39 +0000)]
[PowerPC] Add a late MI-level pass for QPX load/splat simplification

Chapter 3 of the QPX manual states that, "Scalar floating-point load
instructions, defined in the Power ISA, cause a replication of the source data
across all elements of the target register." Thus, if we have a load followed
by a QPX splat (from the first lane), the splat is redundant. This adds a late
MI-level pass to remove the redundant splats in some of these cases
(specifically when both occur in the same basic block).

This optimization is scheduled just prior to post-RA scheduling. It can't happen
before anything that might replace the load with some already-computed quantity
(i.e. store-to-load forwarding).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265047 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRevert r265039 "[X86] Merge adjacent stack adjustments in eliminateCallFramePseudoIns...
Hans Wennborg [Thu, 31 Mar 2016 20:27:30 +0000 (20:27 +0000)]
Revert r265039 "[X86] Merge adjacent stack adjustments in eliminateCallFramePseudoInstr (PR27140)"

I think it might have caused these build breakages:
http://lab.llvm.org:8011/builders/clang-x86-win2008-selfhost/builds/7234/steps/build%20stage%202/logs/stdio
http://lab.llvm.org:8011/builders/sanitizer-windows/builds/19566/steps/run%20tests/logs/stdio

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265046 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[X86][SSE] Some basic tests for variable shuffles
Simon Pilgrim [Thu, 31 Mar 2016 20:26:30 +0000 (20:26 +0000)]
[X86][SSE] Some basic tests for variable shuffles

We don't really support non-constant shuffle masks, but these tests are for cases where BUILD_VECTOR is made up from vector extracts (as well as undef/zero scalars).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265045 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoPreserve extern_weak linkage in CloneModule.
Evgeniy Stepanov [Thu, 31 Mar 2016 20:21:31 +0000 (20:21 +0000)]
Preserve extern_weak linkage in CloneModule.

Only force "extern" linkage if the function used to be a definition
in the source module. Declarations keep their original linkage.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265043 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[CMake] Provide the ability to skip stripping when generating dSYMs
Chris Bieneman [Thu, 31 Mar 2016 20:03:19 +0000 (20:03 +0000)]
[CMake] Provide the ability to skip stripping when generating dSYMs

For debugging it is useful to be able to generate dSYM files but not strip the executables. This change adds the ability to skip stripping by setting LLVM_EXTERNALIZE_DEBUGINFO_SKIP_STRIP=On.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265041 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[ARM] Expand v1i64 and v2i64 ctpop.
Benjamin Kramer [Thu, 31 Mar 2016 19:42:04 +0000 (19:42 +0000)]
[ARM] Expand v1i64 and v2i64 ctpop.

The default is legal, which results in 'Cannot select' errors. This is
triggered during selfhost due to a recent cost model change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265040 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[X86] Merge adjacent stack adjustments in eliminateCallFramePseudoInstr (PR27140)
Hans Wennborg [Thu, 31 Mar 2016 19:26:24 +0000 (19:26 +0000)]
[X86] Merge adjacent stack adjustments in eliminateCallFramePseudoInstr (PR27140)

For code such as:

  void f(int, int);
  void g() {
      f(1, 2);
  }

compiled for 32-bit X86 Linux, Clang would previously generate:

  subl    $12, %esp
  subl    $8, %esp
  pushl   $2
  pushl   $1
  calll   f
  addl    $16, %esp
  addl    $12, %esp
  retl

This patch fixes that by merging adjacent stack adjustments in
eliminateCallFramePseudoInstr().

Differential Revision: http://reviews.llvm.org/D18627

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265039 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoChange eliminateCallFramePseudoInstr() to return an iterator
Hans Wennborg [Thu, 31 Mar 2016 18:33:38 +0000 (18:33 +0000)]
Change eliminateCallFramePseudoInstr() to return an iterator

This will become necessary in a subsequent change to make this method
merge adjacent stack adjustments, i.e. it might erase the previous
and/or next instruction.

It also greatly simplifies the calls to this function from Prolog-
EpilogInserter. Previously, that had a bunch of logic to resume iteration
after the call; now it just continues with the returned iterator.

Note that this changes the behaviour of PEI a little. Previously,
it attempted to re-visit the new instruction created by
eliminateCallFramePseudoInstr(). That code was added in r36625,
but I can't see any reason for it: the new instructions will obviously
not be pseudo instructions, they will not have FrameIndex operands,
and we have already accounted for the stack adjustment.

Differential Revision: http://reviews.llvm.org/D18627

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265036 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[lit][googletest] Handle upstream gtest output
Daniel Dunbar [Thu, 31 Mar 2016 18:22:55 +0000 (18:22 +0000)]
[lit][googletest] Handle upstream gtest output

Summary:
Upstream googletest prints "Running main() from gtest_main.cc" to stdout prior
to running tests. LLVM removed that print statement in r61540. If a user were
to use lit to run tests that use upstream googletest, however, lit
reports "Running main()" as an invalid test name.

To avoid such a failure, add an extra conditional to `formats/googletest.py`.
Also add tests to demonstrate the modified behavior.

Reviewers: abdulras, ddunbar

Subscribers: ddunbar, llvm-commits, kastiglione

Differential Revision: http://reviews.llvm.org/D18606

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265034 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[lanai] isBrImm should accept any non-constant immediate.
Jacques Pienaar [Thu, 31 Mar 2016 17:58:55 +0000 (17:58 +0000)]
[lanai] isBrImm should accept any non-constant immediate.

isBrImm should accept any non-constant immediate. Previously it was only accepting LanaiMCExpr ones which was wrong.

Differential Revision: http://reviews.llvm.org/D18571

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265032 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[PPC] basic support for Power 9 direct move instructions
Ehsan Amiri [Thu, 31 Mar 2016 17:47:17 +0000 (17:47 +0000)]
[PPC] basic support for Power 9 direct move instructions

http://reviews.llvm.org/D18097

Initial support does not include any patterns to generate this instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265031 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[PGO] use emplace_back. NFC.
Rong Xu [Thu, 31 Mar 2016 17:39:33 +0000 (17:39 +0000)]
[PGO] use emplace_back. NFC.

Use emplace_back instead of push_back for simplicity.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265030 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[x86] use SSE/AVX ops for non-zero memsets (PR27100)
Sanjay Patel [Thu, 31 Mar 2016 17:30:06 +0000 (17:30 +0000)]
[x86] use SSE/AVX ops for non-zero memsets (PR27100)

Move the memset check down to the CPU-with-slow-SSE-unaligned-memops case: this allows fast
targets to take advantage of SSE/AVX instructions and prevents slow targets from stepping
into a codegen sinkhole while trying to splat a byte into an XMM reg.

Follow-on bugs exposed by the current codegen are:
https://llvm.org/bugs/show_bug.cgi?id=27141
https://llvm.org/bugs/show_bug.cgi?id=27143

Differential Revision: http://reviews.llvm.org/D18566

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265029 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[AMDGPU] enable few disassembler tests that were mistakenly marked as FIXME.
Valery Pykhtin [Thu, 31 Mar 2016 17:28:46 +0000 (17:28 +0000)]
[AMDGPU] enable few disassembler tests that were mistakenly marked as FIXME.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265028 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMore checks in win32-seh-nested-finally.ll after comment on r264966
Hans Wennborg [Thu, 31 Mar 2016 16:42:10 +0000 (16:42 +0000)]
More checks in win32-seh-nested-finally.ll after comment on r264966

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265027 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[PowerPC] Attempt to fix fast-isel-i64offset.ll failure
Ulrich Weigand [Thu, 31 Mar 2016 16:38:57 +0000 (16:38 +0000)]
[PowerPC] Attempt to fix fast-isel-i64offset.ll failure

The test case added in r265023 is failing on ninja-x64-msvc-RA-centos6.
Update the test to make less specific assumptions on code generation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265026 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMinor code cleanup /NFC
Xinliang David Li [Thu, 31 Mar 2016 16:22:17 +0000 (16:22 +0000)]
Minor code cleanup /NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265025 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoDon't use potentially invalidated iterator
Stephan Bergmann [Thu, 31 Mar 2016 15:42:01 +0000 (15:42 +0000)]
Don't use potentially invalidated iterator

If the lhs is evaluated before the rhs, FuncletI's operator-> can trigger the

  assert(isHandleInSync() && "invalid iterator access!");

at include/llvm/ADT/DenseMap.h:1061.  (Happens e.g. when compiled with GCC 6.)

Differential Revision: http://reviews.llvm.org/D18440

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265024 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[PowerPC] Correctly compute 64-bit offsets in fast isel
Ulrich Weigand [Thu, 31 Mar 2016 15:37:06 +0000 (15:37 +0000)]
[PowerPC] Correctly compute 64-bit offsets in fast isel

PPCSimplifyAddress contains this code:

  IntegerType *OffsetTy = ((VT == MVT::i32) ? Type::getInt32Ty(*Context)
                                            : Type::getInt64Ty(*Context));

to determine the type to be used for an index register, if one needs
to be created.  However, the "VT" here is the type of the data being
loaded or stored, *not* the type of an address.  This means that if
a data element of type i32 is accessed using an index that does not
not fit into 32 bits, a wrong address is computed here.

Note that PPCFastISel is only ever used on 64-bit currently, so the type
of an address is actually *always* MVT::i64.  Other parts of the code,
even in this same PPCSimplifyAddress routine, already rely on that fact.
Thus, this patch changes the code to simply unconditionally use
Type::getInt64Ty(*Context) as OffsetTy.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265023 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[PowerPC] Basic support for P9 atomic loads and stores
Nemanja Ivanovic [Thu, 31 Mar 2016 15:26:37 +0000 (15:26 +0000)]
[PowerPC] Basic support for P9 atomic loads and stores

This patch corresponds to review:
http://reviews.llvm.org/D18032

This patch provides asm implementation for the following instructions:
lwat, ldat, stwat, stdat, ldmx, mcrxrx

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265022 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[AArch64] Handle missing store pair opportunity
Jun Bum Lim [Thu, 31 Mar 2016 14:47:24 +0000 (14:47 +0000)]
[AArch64] Handle missing store pair opportunity

Summary:
This change will handle missing store pair opportunity where the first store
instruction stores zero followed by the non-zero store. For example, this change
will convert :

  str wzr, [x8]
  str w1, [x8, #4]
into:
  stp wzr, w1, [x8]

Reviewers: jmolloy, t.p.northover, mcrosier

Subscribers: flyingforyou, aemerson, rengolin, mcrosier, llvm-commits

Differential Revision: http://reviews.llvm.org/D18570

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265021 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[PowerPC] Remove incorrect use of COPY_TO_REGCLASS in fast isel
Ulrich Weigand [Thu, 31 Mar 2016 14:44:50 +0000 (14:44 +0000)]
[PowerPC] Remove incorrect use of COPY_TO_REGCLASS in fast isel

The fast isel pass currently emits a COPY_TO_REGCLASS node to convert
from a F4RC to a F8RC register class during conversion of a
floating-point number to integer. There is actually no support in the
common code instruction printers to emit COPY_TO_REGCLASS nodes, so the
PowerPC back-end has special code there to simply ignore
COPY_TO_REGCLASS.

This is correct *if and only if* the source and destination registers of
COPY_TO_REGCLASS are the same (except for the different register class).
But nothing guarantees this to be the case, and if the register
allocator does end up allocating source and destination to different
registers after all, the back-end simply generates incorrect code. I've
included a test case that shows such incorrect code generation.

However, it seems that COPY_TO_REGCLASS is actually not intended to be
used at the MI layer at all. It is used during SelectionDAG, but always
lowered to a plain COPY before emitting MI. Other back-end's fast isel
passes never emit COPY_TO_REGCLASS at all. I suspect it is simply wrong
for the PowerPC back-end to emit it here.

This patch changes the PowerPC back-end to directly emit COPY instead of
COPY_TO_REGCLASS and removes the special handling in the instruction
printers.

Differential Revision: http://reviews.llvm.org/D18605

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265020 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[mips] Range check simm16
Daniel Sanders [Thu, 31 Mar 2016 14:34:00 +0000 (14:34 +0000)]
[mips] Range check simm16

Summary:
There are too many instructions to exhaustively test so addiu and lwc2 are
used as representative examples.

It should be noted that many memory instructions that should have simm16
range checking do not because it is also necessary to support the macro
of the same name which accepts simm32. The range checks for these occur in
the macro expansion.

Reviewers: vkalintiris

Subscribers: dsanders, llvm-commits

Differential Revision: http://reviews.llvm.org/D18437

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265019 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[mips] Range check simm11 and mem_simm11.
Daniel Sanders [Thu, 31 Mar 2016 14:23:20 +0000 (14:23 +0000)]
[mips] Range check simm11 and mem_simm11.

Summary:
ldc2/sdc2 now emit slightly worse diagnostics for MIPS-I. The problem
is that they don't trigger the custom parser because all the candidates
are disabled by feature bits. On all other subtargets, the diagnostics are
accurate but are subject to the usual issues of needing to report multiple
ways to correct the code (e.g. smaller offset, enable a CPU feature) but
only being able to report one error.

Reviewers: vkalintiris

Subscribers: dsanders, llvm-commits

Differential Revision: http://reviews.llvm.org/D18436

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265018 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[IFUNC] Introduce GlobalIndirectSymbol as a base class for alias and ifunc
Dmitry Polukhin [Thu, 31 Mar 2016 14:16:21 +0000 (14:16 +0000)]
[IFUNC] Introduce GlobalIndirectSymbol as a base class for alias and ifunc

This patch is a part of http://reviews.llvm.org/D15525

GlobalIndirectSymbol class contains common implementation for both
aliases and ifuncs. This patch should be NFC change that just prepare
common code for ifunc support.

Differential Revision: http://reviews.llvm.org/D18433

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265016 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[AMDGPU] Disassembler: support for DPP
Sam Kolton [Thu, 31 Mar 2016 14:15:04 +0000 (14:15 +0000)]
[AMDGPU] Disassembler: support for DPP

Review: http://reviews.llvm.org/D18642

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265015 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[mips] Split mem_msa into range checked mem_simm10 and mem_simm10_lsl[123]
Daniel Sanders [Thu, 31 Mar 2016 14:12:01 +0000 (14:12 +0000)]
[mips] Split mem_msa into range checked mem_simm10 and mem_simm10_lsl[123]

Summary:
Also, made test_mi10.s formatting consistent with the majority of the
MC tests.

Reviewers: vkalintiris

Subscribers: dsanders, llvm-commits

Differential Revision: http://reviews.llvm.org/D18435

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265014 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoPrevent X86ISelLowering from merging volatile loads
Nirav Dave [Thu, 31 Mar 2016 13:40:55 +0000 (13:40 +0000)]
Prevent X86ISelLowering from merging volatile loads

Change isConsecutiveLoads to check that loads are non-volatile as this
is a requirement for any load merges. Propagate change to two callers.

Reviewers: RKSimon

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D18546

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265013 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[mips] Range check simm9 and fix a bug this revealed.
Daniel Sanders [Thu, 31 Mar 2016 13:15:23 +0000 (13:15 +0000)]
[mips] Range check simm9 and fix a bug this revealed.

Summary:
The bug was that microMIPS's [ls]w[lr]e instructions claimed to support a
12-bit offset when it is only 9-bit.

Reviewers: vkalintiris

Subscribers: llvm-commits, dsanders

Differential Revision: http://reviews.llvm.org/D18434

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265010 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[TTI] Let the cost model estimate ctpop costs based on legality
Benjamin Kramer [Thu, 31 Mar 2016 10:42:40 +0000 (10:42 +0000)]
[TTI] Let the cost model estimate ctpop costs based on legality

PPC has a vector popcount, this lets the vectorizer use the correct cost
for it. Tweak X86 test to use an intrinsic that's actually scalarized (we
have a somewhat efficient lowering for vector popcount using SSE, the
cost model finds that now).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265005 91177308-0d34-0410-b5e6-96231b3b80d8