fix trivial typos in comments; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307075 91177308-0d34-0410-b5e6-96231b3b80d8

[X86] Add combine tests for vector rotates

Reference tests for D12833

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307073 91177308-0d34-0410-b5e6-96231b3b80d8

Revert r307064, "[InstCombine] Add test cases demonstrating creation of extra bswap instrinsic calls when when optimizing bswap and bitwise ops when the bswaps have additional uses. NFC"

Seems confused between %tmpN and unnamed %N to give same name.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307070 91177308-0d34-0410-b5e6-96231b3b80d8

llvm/ExecutionEngine/Orc/ObjectTransformLayer.h: Add <memory> to appease libstdc++'s std::shared_ptr.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307069 91177308-0d34-0410-b5e6-96231b3b80d8

NFC commit.
 Converting the Codegen test "extractelement-legalization-store-ordering.ll" to be "update_llc_test_checks" friendly.

The changes to the test are needed for an upcoming scheduling patch.

Reviewers: zvi, RKSimon

Differential Revision: https://reviews.llvm.org/D34935

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307066 91177308-0d34-0410-b5e6-96231b3b80d8

[InstCombine] Add TODOs for a couple things that should maybe be in InstSimplify instead. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307065 91177308-0d34-0410-b5e6-96231b3b80d8

[InstCombine] Add test cases demonstrating creation of extra bswap instrinsic calls when when optimizing bswap and bitwise ops when the bswaps have additional uses. NFC

I assume bswap intrinsics are somewhat costly so we should be making sure we are getting rid of them not creating more.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307064 91177308-0d34-0410-b5e6-96231b3b80d8

[tablegen] Avoid creating a temporary vector in getInstructionCase

Record::getValues returns ArrayRef which has a cast operator
to std::vector, as a result a temporary vector is created
if the type of the variable is const std::vector&
that is suboptimal in this case.

Differential revision: https://reviews.llvm.org/D34969

Test plan: make check-all

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307063 91177308-0d34-0410-b5e6-96231b3b80d8

[X86] Add comment string for broadcast loads from the constant pool.

Summary:
When broadcasting from the constant pool its useful to print out the final vector similar to what we do for normal moves from the constant pool.

I changed only a couple tests that were broadcast focused. One of them had been previously hand tweaked after running the script so that it could check the constant pool declaration. But I think this patch makes that unnecessary now since we can check the comment instead.

Reviewers: spatel, RKSimon, zvi

Reviewed By: spatel

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D34923

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307062 91177308-0d34-0410-b5e6-96231b3b80d8

[llvm] Revert "[tablegen] Avoid creating a temporary vector in getInstructionCase"

Revert rL307059 because of the incorrect commit message & patch,
will recommit later.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307061 91177308-0d34-0410-b5e6-96231b3b80d8

[X86] Add RDRAND feature to GLM CPU

Summary: I believe this should be supported on GLM since RDSEED is.

Reviewers: m_zuckerman, zvi, RKSimon

Reviewed By: RKSimon

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D34828

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307060 91177308-0d34-0410-b5e6-96231b3b80d8

[tablegen] Avoid creating a temporary vector in getInstructionCase

Record::getValues returns ArrayRef which has a cast operator
to std::vector, as a result a temporary vector is created
if the type of the variable is const std::vector&
that was suboptimal in this case.

Differential revision: https://reviews.llvm.org/D34969

Test plan: make check-all

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307059 91177308-0d34-0410-b5e6-96231b3b80d8

[Orc] Remove the memory manager argument to addModule, and de-templatize the
symbol resolver argument.

De-templatizing the symbol resolver is part of the ongoing simplification of
ORC layer API.

Removing the memory management argument (and delegating construction of memory
managers for RTDyldObjectLinkingLayer to a functor passed in to the constructor)
allows us to build JITs whose base object layers need not be compatible with
RTDyldObjectLinkingLayer's memory mangement scheme. For example, a 'remote
object layer' that sends fully relocatable objects directly to the remote does
not need a memory management scheme at all (that will be handled by the remote).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307058 91177308-0d34-0410-b5e6-96231b3b80d8

[AVR] Fix bug which caused assertion errors for some FRMIDX instructions

Previously, if a basic block ended with a FRMIDX instruction, we would
end up doing something like this.

*std::next(MBB.end())

Which would hit an error:

"Assertion `!NodePtr->isKnownSentinel()' failed."

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307057 91177308-0d34-0410-b5e6-96231b3b80d8

[AVR] Add a missing clobber declaration to LPMW

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307056 91177308-0d34-0410-b5e6-96231b3b80d8

[DAG] Fixed predicate for determining when two frame indices
addresses are comparable. NFCI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307055 91177308-0d34-0410-b5e6-96231b3b80d8

Revert r307026, "[AMDGPU] Switch scalarize global loads ON by default"

It broke a testcase.

  Failing Tests (1):
      LLVM :: CodeGen/AMDGPU/alignbit-pat.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307054 91177308-0d34-0410-b5e6-96231b3b80d8

[legalize-types] Clean up softening machinery.

The patch makes SoftenFloatResult/Operand logic just the same as all other legalization routines have: SoftenFloatResult() now fills the SoftenFloats map and SoftenFloatOperand() perform all needed replacements. This prevents softening mashinery from leaving stale entries in SoftenFloats map (that resulted in errors during the legalize type checking) and clarifies softening. The patch replaces https://reviews.llvm.org/D29265.

Differential Revision: https://reviews.llvm.org/D31946

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307053 91177308-0d34-0410-b5e6-96231b3b80d8

[X86][SSE4A] Add support for combining from EXTRQI/INSERTQI shuffles

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307048 91177308-0d34-0410-b5e6-96231b3b80d8

MathExtras UnitTest: Assert that isPowerOf2(0) is false. NFC.

Summary:
This is a follow-up on D34077. Elena observed that the
correctness of the code relies on isPowerOf2(0) returning false.
Adding a test to cover this corner-case.

Reviewers: delena, davide, craig.topper

Reviewed By: davide

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D34939

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307046 91177308-0d34-0410-b5e6-96231b3b80d8

[X86][SSE4A] Add SSE4A shuffle tests on pre-SSSE3 hardware

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307042 91177308-0d34-0410-b5e6-96231b3b80d8

[X86][SSE4A] Test SSE4A shuffle combining on SSE42 capable target as well

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307038 91177308-0d34-0410-b5e6-96231b3b80d8

DAGCombine: Combine BUILD_VECTOR to TRUNCATE

Summary:
Add a combine for creating a truncate to replace a build_vector composed of extracts with
indices that form a stride-2^N series.

Example:
v8i32 V = ...

v4i32 build_vector((extract_elt V, 0), (extract_elt V, 2), (extract_elt V, 4), (extract_elt V, 6))
-->
v4i32 truncate (bitcast V to v4i64)

Related discussion in llvm-dev about canonicalizing shuffles to
truncates in LLVM IR:
http://lists.llvm.org/pipermail/llvm-dev/2017-January/108936.html.

Reviewers: spatel, RKSimon, efriedma, igorb, craig.topper, wolfgangp, delena

Reviewed By: delena

Subscribers: guyblank, delena, javed.absar, llvm-commits

Differential Revision: https://reviews.llvm.org/D34077

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307036 91177308-0d34-0410-b5e6-96231b3b80d8

[LoopInterchange] Add more debug messages to currentLimitations().

Summary: This makes it easier to find out which limitation prevented this pass from doing its work.

Reviewers: karthikthecool, mzolotukhin, efriedma, mcrosier

Reviewed By: mcrosier

Subscribers: mcrosier, llvm-commits

Differential Revision: https://reviews.llvm.org/D34940

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307035 91177308-0d34-0410-b5e6-96231b3b80d8

[x86] auto-generate complete checks for tests; NFC

These all used 'CHECK-NOT' which isn't necessary if we have complete checks.
There were also over-specifications in the RUN params such as CPU model.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307033 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed argument parsing in docker scripts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307031 91177308-0d34-0410-b5e6-96231b3b80d8

[x86] auto-generate complete checks for tests; NFC

These all used 'CHECK-NOT' which isn't necessary if we have complete checks.
There were also several over-specifications in the RUN params such as CPU model or OS requirement

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307028 91177308-0d34-0410-b5e6-96231b3b80d8

[X86][SSE4A] Add tests showing missed opportunities to combine EXTRQI/INSERTQI shuffles

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307027 91177308-0d34-0410-b5e6-96231b3b80d8

[AMDGPU] Switch scalarize global loads ON by default

Differential revision: https://reviews.llvm.org/D34407

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307026 91177308-0d34-0410-b5e6-96231b3b80d8

[x86] auto-generate complete checks for tests; NFC

These all used 'CHECK-NOT' which isn't necessary if we have complete checks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307024 91177308-0d34-0410-b5e6-96231b3b80d8

[InstCombine] move and improve tests for cmp-intrinsic; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307022 91177308-0d34-0410-b5e6-96231b3b80d8

Revert "[GVN] Recommit the patch "Add phi-translate support in scalarpre"."

This reverts commit r306313. This breaks selfhost at -O3 and PR33652.
Let me know if you need additional information on reproducing the issue.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307021 91177308-0d34-0410-b5e6-96231b3b80d8

[GlobalISel][X86] fix %ptr(p0) = G_CONSTANT selection.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307019 91177308-0d34-0410-b5e6-96231b3b80d8

fix trivial typos in comments; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307004 91177308-0d34-0410-b5e6-96231b3b80d8

[InstCombine] Add a TODO for a probable missing single use check. NFC

Will try to fix it soon, but in case I forget.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307003 91177308-0d34-0410-b5e6-96231b3b80d8

[InstCombine] Support BITWISE_OP( BSWAP(x), CONSTANT ) -> BSWAP( BITWISE_OP(x, BSWAP(CONSTANT) ) ) for splat vectors.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307002 91177308-0d34-0410-b5e6-96231b3b80d8

[InstCombine] Add test cases for BITWISE_OP( BSWAP(x), CONSTANT ) -> BSWAP( BITWISE_OP(x, BSWAP(CONSTANT) ) ) with splat vectors. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307001 91177308-0d34-0410-b5e6-96231b3b80d8

[InstCombine] Remove support for BITWISE_OP(CONSTANT, BSWAP(x)) -> BSWAP(OP(BSWAP(CONSTANT), x)).

Constants were already canonicalized to the right hand side before we got here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307000 91177308-0d34-0410-b5e6-96231b3b80d8

[InstCombine] Support BITWISE_OP(BSWAP(A),BSWAP(B))->BSWAP(BITWISE_OP(A, B)) for vectors.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306999 91177308-0d34-0410-b5e6-96231b3b80d8

[InstCombine] Add test cases showing missed opportunity to fold BITWISE_OP(BSWAP(A),BSWAP(B))->BSWAP(BITWISE_OP(A, B)) for vectors. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306998 91177308-0d34-0410-b5e6-96231b3b80d8

[InstCombine] Remove an if that should have been guaranteed by the caller. Replace with an assert. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306997 91177308-0d34-0410-b5e6-96231b3b80d8

AMDGPU: Add operand target flags serialization

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306995 91177308-0d34-0410-b5e6-96231b3b80d8

[X86][AVX512] Test AVX512VPOPCNTDQ CTPOP with/without AVX512BW

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306991 91177308-0d34-0410-b5e6-96231b3b80d8

[X86][AVX512VPOPCNTDQ] Improve support for v16i8/v8i16/v16i16/ CTPOP

Zero extend to v16i32/v8i64, use VPOPCNTDQ instructions and truncate back.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306990 91177308-0d34-0410-b5e6-96231b3b80d8

[X86][AVX512] Cleanup tzcnt tests triples and attributes

Avoid use of specific -mcpu

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306989 91177308-0d34-0410-b5e6-96231b3b80d8

[X86][AVX512] Cleanup popcnt tests triples and attributes

Avoid use of specific -mcpu

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306988 91177308-0d34-0410-b5e6-96231b3b80d8

[IR] Remove unnecessary operator new from ConstantDataArray and ConstantDataVector. They inherit an identical version from ConstantData. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306987 91177308-0d34-0410-b5e6-96231b3b80d8

[InstCombine] Use m_BitReverse pattern match helper. NFCI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306986 91177308-0d34-0410-b5e6-96231b3b80d8

[InstCombine] fix crash when folding cmp+bswap vector

We assumed the constant was a scalar when creating the replacement operand.

Also, improve tests for this fold and move the tests for this fold to their own file.
I'll move the related and missing tests to this file as a follow-up.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306985 91177308-0d34-0410-b5e6-96231b3b80d8

[x86] auto-generate complete checks for tests; NFC

These all used 'CHECK-NOT' which isn't necessary if we have complete checks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306984 91177308-0d34-0410-b5e6-96231b3b80d8

[x86] remove unnecessary RUN for test after auto-generating checks; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306983 91177308-0d34-0410-b5e6-96231b3b80d8

[x86] update test to use FileCheck and auto-generate checks; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306982 91177308-0d34-0410-b5e6-96231b3b80d8

[x86] auto-generate complete checks for tests; NFC

These all used 'CHECK-NOT' which isn't necessary if we have complete checks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306981 91177308-0d34-0410-b5e6-96231b3b80d8

[InstCombine] look through bswap/bitreverse for equality comparisons

I noticed this missed bswap optimization in the CGP memcmp() expansion,
and then I saw that we don't have the fold in InstCombine.

Differential Revision: https://reviews.llvm.org/D34763

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306980 91177308-0d34-0410-b5e6-96231b3b80d8

llvm/test/Transforms/LoopVectorize/X86/slm-no-vectorize.ll: -debug is available in +Asserts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306979 91177308-0d34-0410-b5e6-96231b3b80d8

[X86][SSE] Attempt to combine 64-bit and 32-bit shuffles to unary shuffles before bit shifts

We are combining shuffles to bit shifts before unary permutes, which means we can't fold loads plus the destination register is destructive

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306978 91177308-0d34-0410-b5e6-96231b3b80d8

[X86][SSE] Attempt to combine 64-bit and 16-bit shuffles to unary shuffles before bit shifts

We are combining shuffles to bit shifts before unary permutes, which means we can't fold loads plus the destination register is destructive

The 32-bit shuffles are a bit tricky and will be dealt with in a later patch

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306977 91177308-0d34-0410-b5e6-96231b3b80d8

[X86][SSE] Add test showing missed opportunity to combine to pshuflw

We are combining shuffles to bit shifts before unary permutes, which means we can't fold loads plus the destination register is destructive

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306976 91177308-0d34-0410-b5e6-96231b3b80d8

fix trivial typos in documents; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306975 91177308-0d34-0410-b5e6-96231b3b80d8

[X86][CM] update add\sub costs of vectors of 64 in X86\SLM arch

this patch updates the cost of addq\subq (add\subtract of vectors of 64bits)
based on the performance numbers of SLM arch.

Differential Revision: https://reviews.llvm.org/D33983

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306974 91177308-0d34-0410-b5e6-96231b3b80d8

[X86] Rerun "update_llc_test_checks" tool on CodeGen tests. NFC.

This is NFC after rerunning the "update_llc_test_checks.py" tool on the CodeGen X86 tests in order to submit a patch.
Minor differences due to added "End of Function" lines.

Reviewers: zvi
Differential Revision: https://reviews.llvm.org/D34933

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306973 91177308-0d34-0410-b5e6-96231b3b80d8

[GlobalISel][X86] Support G_GLOBAL_VALUE operation.

Summary: Support G_GLOBAL_VALUE operation. For now most of the PIC configurations not implemented yet.

Reviewers: zvi, guyblank

Reviewed By: guyblank

Subscribers: rovka, kristof.beyls, llvm-commits

Differential Revision: https://reviews.llvm.org/D34738

Conflicts:
test/CodeGen/X86/GlobalISel/regbankselect-X86_64.mir

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306972 91177308-0d34-0410-b5e6-96231b3b80d8

[GlobalISel][X86] Support vector type G_UNMERGE_VALUES selection.

Summary:
Support vector type G_UNMERGE_VALUES selection.
For now G_UNMERGE_VALUES marked as legal for any type, so nothing to do in legalizer.

Reviewers: t.p.northover, qcolombet, zvi, guyblank

Reviewed By: guyblank

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

Differential Revision: https://reviews.llvm.org/D33665

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306971 91177308-0d34-0410-b5e6-96231b3b80d8

fix trivial typos; NFC

suport -> support

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306968 91177308-0d34-0410-b5e6-96231b3b80d8

[InstCombine] Fold (a | b) ^ (~a | ~b) --> ~(a ^ b) and (a & b) ^ (~a & ~b) --> ~(a ^ b)

Summary:
I came across this while thinking about what would happen if one of the operands in this xor pattern was itself a inverted (A & ~B) ^ (~A & B)-> (A^B).

The patterns here assume that the (~a | ~b) will be demorganed to ~(a & b) first. Though I wonder if there's a multiple use case that would prevent the demorgan.

Reviewers: spatel

Reviewed By: spatel

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D34870

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306967 91177308-0d34-0410-b5e6-96231b3b80d8

[CodeExtractor] Remove unneded and commented out debugging stmts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306966 91177308-0d34-0410-b5e6-96231b3b80d8

[X86][RDSEED] Split off i64 intrinsic tests and test i16/i32 on 32-bit target as well.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306961 91177308-0d34-0410-b5e6-96231b3b80d8

[X86][RDRAND] Split off i64 intrinsic tests and test i16/i32 on 32-bit target as well.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306960 91177308-0d34-0410-b5e6-96231b3b80d8

[X86] Removed reference to update_test_checks.py

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306959 91177308-0d34-0410-b5e6-96231b3b80d8

[X86][AVX] Remove duplicate autogeneration note

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306958 91177308-0d34-0410-b5e6-96231b3b80d8

fix trivial typos, NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306952 91177308-0d34-0410-b5e6-96231b3b80d8

[SelectionDAGBuilder] Use EVT::getVectorVT instead of MVT::getVectorVT to prevent a crash if the type isn't a simple VT.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306950 91177308-0d34-0410-b5e6-96231b3b80d8

[AVR] Remove a bunch of now-obselete tests

The fixups in these instructions are now lowered into relocations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306947 91177308-0d34-0410-b5e6-96231b3b80d8

Revert "Revert "Replace trivial use of external rc.exe by writing our own .res file.""

Summary:
This reverts commit 51931072a7c9a52540baf76fc30ef391d2529a2f.

This revert was originally done because the integrations of the new
WindowsResource library into LLD was causing error in chromium, due to
bugs in how resource sections were handled.  These bugs were fixed,
meaning that the features may be reintegrated.

Subscribers: hiraditya, llvm-commits

Differential Revision: https://reviews.llvm.org/D34922

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306941 91177308-0d34-0410-b5e6-96231b3b80d8

Remove the default ARMSubtarget from the ARM TargetMachine.

This enables us to ensure better LTO and code generation in the face of module linking.
Remove a report_fatal_error from the TargetMachine and replace it with an assert in ARMSubtarget - and remove the test that depended on the error. The assertion will still fire in the case that we were reporting before, but error reporting needs to be in front end tools if possible for options parsing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306939 91177308-0d34-0410-b5e6-96231b3b80d8

[Cloner] Re-map simplfied cloned instructions.

This commit pretty much rolls back the logic added in r306495
as in the testcase provided we simplify an `icmp` looking through
a PHI that hasn't been mapped yet.

I think instsimplify shouldn't do threading over select/phis or
just looking through phis in general, but this is what we have
now. Also, add a test to prevent this from happening in case somebody
wants to modify this code again.

Briefly discussed with Kyle Butt (thanks Kyle!).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306938 91177308-0d34-0410-b5e6-96231b3b80d8

Recommit "r306541 - Add zero-length check to memcpy/memset load store loop expansion""

With fix for use-after-free errors. We can't add the new branch and
remove the old one until we are done with the Builder constructed for
the block.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306937 91177308-0d34-0410-b5e6-96231b3b80d8

Revert "r306473 - re-commit r306336: Enable vectorizer-maximize-bandwidth by default."

This still breaks PPC tests we have. I'll forward reproduction
instructions to dehao.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306936 91177308-0d34-0410-b5e6-96231b3b80d8

re-commit r306336: Enable vectorizer-maximize-bandwidth by default.

Differential Revision: https://reviews.llvm.org/D33341

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306935 91177308-0d34-0410-b5e6-96231b3b80d8

revert r306336 for breaking ppc test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306934 91177308-0d34-0410-b5e6-96231b3b80d8

Enable vectorizer-maximize-bandwidth by default.

Summary:
vectorizer-maximize-bandwidth is generally useful in terms of performance. I've tested the impact of changing this to default on speccpu benchmarks on sandybridge machines. The result shows non-negative impact:

spec/2006/fp/C++/444.namd                 26.84  -0.31%
spec/2006/fp/C++/447.dealII               46.19  +0.89%
spec/2006/fp/C++/450.soplex               42.92  -0.44%
spec/2006/fp/C++/453.povray               38.57  -2.25%
spec/2006/fp/C/433.milc                   24.54  -0.76%
spec/2006/fp/C/470.lbm                    41.08  +0.26%
spec/2006/fp/C/482.sphinx3                47.58  -0.99%
spec/2006/int/C++/471.omnetpp             22.06  +1.87%
spec/2006/int/C++/473.astar               22.65  -0.12%
spec/2006/int/C++/483.xalancbmk           33.69  +4.97%
spec/2006/int/C/400.perlbench             33.43  +1.70%
spec/2006/int/C/401.bzip2                 23.02  -0.19%
spec/2006/int/C/403.gcc                   32.57  -0.43%
spec/2006/int/C/429.mcf                   40.35  +0.27%
spec/2006/int/C/445.gobmk                 26.96  +0.06%
spec/2006/int/C/456.hmmer                  24.4  +0.19%
spec/2006/int/C/458.sjeng                 27.91  -0.08%
spec/2006/int/C/462.libquantum            57.47  -0.20%
spec/2006/int/C/464.h264ref               46.52  +1.35%

geometric mean                                   +0.29%

The regression on 453.povray seems real, but is due to secondary effects as all hot functions are bit-identical with and without the flag.

I started this patch to consult upstream opinions on this. It will be greatly appreciated if the community can help test the performance impact of this change on other architectures so that we can decided if this should be target-dependent.

Reviewers: hfinkel, mkuper, davidxl, chandlerc

Reviewed By: chandlerc

Subscribers: rengolin, sanjoy, javed.absar, bjope, dorit, magabari, RKSimon, llvm-commits, mzolotukhin

Differential Revision: https://reviews.llvm.org/D33341

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306933 91177308-0d34-0410-b5e6-96231b3b80d8

Another test commit

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306932 91177308-0d34-0410-b5e6-96231b3b80d8

Still debugging

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306931 91177308-0d34-0410-b5e6-96231b3b80d8

Still test commit

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306930 91177308-0d34-0410-b5e6-96231b3b80d8

Another test commit

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306929 91177308-0d34-0410-b5e6-96231b3b80d8

Rewrite ARM execute only support to avoid the use of a command line flag and unqualified ARMSubtarget lookup.

Paired with a clang commit to use the new behavior.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306927 91177308-0d34-0410-b5e6-96231b3b80d8

[ObjectYAML] 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@306925 91177308-0d34-0410-b5e6-96231b3b80d8

[AVR] Update AVRASmBackend from API change in r306906

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306923 91177308-0d34-0410-b5e6-96231b3b80d8

[X86] Move GISel accessor initialization from TargetMachine to Subtarget.

NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306921 91177308-0d34-0410-b5e6-96231b3b80d8

[ARM] Move GISel accessor initialization from TargetMachine to Subtarget.

NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306920 91177308-0d34-0410-b5e6-96231b3b80d8

[Dominators] Reapply r306892, r306893, r306893.

This reverts commit r306907 and reapplies the patches in the title.
The patches used to make one of the
CodeGen/ARM/2011-02-07-AntidepClobber.ll test to fail because of a
missing null check.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306919 91177308-0d34-0410-b5e6-96231b3b80d8

A little wordsmithing of dominator verification comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306916 91177308-0d34-0410-b5e6-96231b3b80d8

[RegisterCoalescer] Account for instructions deleted by removePartialredunduncy and in WorkList

Summary:
 removePartialRedundency optimization introduces a state in the
 RegisterCoalescer where an instruction pointed to in the WorkList
 is deleted from the MBB and then removed from the ErasedList.
 This patch updates the ErasedList to be used globally by not erasing
 erased Instructions from  it to solve the problem.

 The patch also accounts for the case where an Instruction was previously
 deleted and the same memory was reused by BuildMI to create a new instruction.

Reviewers: kparzysz, qcolombet

Reviewed By: qcolombet

Subscribers: MatzeB, qcolombet, llvm-commits

Differential Revision: https://reviews.llvm.org/D34902

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306915 91177308-0d34-0410-b5e6-96231b3b80d8

Add comments on sibling and parent properties in dominator trees

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306913 91177308-0d34-0410-b5e6-96231b3b80d8

[ORE] Add diagnostics hotness threshold

Summary:
Add an option to prevent diagnostics that do not meet a minimum hotness
threshold from being output. When generating optimization remarks for
large codebases with a ton of cold code paths, this option can be used
to limit the optimization remark output at a reasonable size. Discussion of
this change can be read here:
http://lists.llvm.org/pipermail/llvm-dev/2017-June/114377.html

Reviewers: anemet, davidxl, hfinkel

Reviewed By: anemet

Subscribers: qcolombet, javed.absar, fhahn, eraman, llvm-commits

Differential Revision: https://reviews.llvm.org/D34867

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306912 91177308-0d34-0410-b5e6-96231b3b80d8

[CodeView, PDB] 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@306911 91177308-0d34-0410-b5e6-96231b3b80d8

Revert "[Dominators] Teach IDF to use level information"

This reverts commit r306894.

Revert "[Dominators] Add NearestCommonDominator verification"

This reverts commit r306893.

Revert "[Dominators] Keep tree level in DomTreeNode and use it to find NCD and answer dominance queries"

This reverts commit r306892.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306907 91177308-0d34-0410-b5e6-96231b3b80d8

Rename and adjust processFixupValue.

It was not processing any value. All that it ever did was force
relocations, so name it shouldForceRelocation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306906 91177308-0d34-0410-b5e6-96231b3b80d8

[lit] Factor out listdir logic shared by different test formats.

Summary:
The lit test formats use largely the same logic for discovering tests. There are
some superficial differences in the logic, which seem reasonable enough to
handle in a single routine.

At a high level, the common goal is "look for files that end with one of these
suffixes, and skip anything starting with a dot." The balance of the logic
specific to ShTest and GoogleTest collapses quite a bit, so that
getTestsInDirectory is only a couple of lines around a call to the new function.

Reviewers: zturner, MatzeB, modocache

Subscribers: sanjoy, llvm-commits

Differential Revision: https://reviews.llvm.org/D34855

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306895 91177308-0d34-0410-b5e6-96231b3b80d8

[Dominators] Teach IDF to use level information

Summary: This patch teaches IteratedDominanceFrontier to use the level information stored in DomTreeNodes instead of calculating it manually.

Reviewers: dberlin, sanjoy, davide

Reviewed By: davide

Subscribers: davide, llvm-commits

Differential Revision: https://reviews.llvm.org/D34703

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306894 91177308-0d34-0410-b5e6-96231b3b80d8