diff options
| author | dim <dim@FreeBSD.org> | 2016-12-26 20:36:37 +0000 |
|---|---|---|
| committer | dim <dim@FreeBSD.org> | 2016-12-26 20:36:37 +0000 |
| commit | 06210ae42d418d50d8d9365d5c9419308ae9e7ee (patch) | |
| tree | ab60b4cdd6e430dda1f292a46a77ddb744723f31 /contrib/llvm/lib/Analysis/VectorUtils.cpp | |
| parent | 2dd166267f53df1c3748b4325d294b9b839de74b (diff) | |
| download | FreeBSD-src-06210ae42d418d50d8d9365d5c9419308ae9e7ee.zip FreeBSD-src-06210ae42d418d50d8d9365d5c9419308ae9e7ee.tar.gz | |
MFC r309124:
Upgrade our copies of clang, llvm, lldb, compiler-rt and libc++ to 3.9.0
release, and add lld 3.9.0. Also completely revamp the build system for
clang, llvm, lldb and their related tools.
Please note that from 3.5.0 onwards, clang, llvm and lldb require C++11
support to build; see UPDATING for more information.
Release notes for llvm, clang and lld are available here:
<http://llvm.org/releases/3.9.0/docs/ReleaseNotes.html>
<http://llvm.org/releases/3.9.0/tools/clang/docs/ReleaseNotes.html>
<http://llvm.org/releases/3.9.0/tools/lld/docs/ReleaseNotes.html>
Thanks to Ed Maste, Bryan Drewery, Andrew Turner, Antoine Brodin and Jan
Beich for their help.
Relnotes: yes
MFC r309147:
Pull in r282174 from upstream llvm trunk (by Krzysztof Parzyszek):
[PPC] Set SP after loading data from stack frame, if no red zone is
present
Follow-up to r280705: Make sure that the SP is only restored after
all data is loaded from the stack frame, if there is no red zone.
This completes the fix for
https://llvm.org/bugs/show_bug.cgi?id=26519.
Differential Revision: https://reviews.llvm.org/D24466
Reported by: Mark Millard
PR: 214433
MFC r309149:
Pull in r283060 from upstream llvm trunk (by Hal Finkel):
[PowerPC] Refactor soft-float support, and enable PPC64 soft float
This change enables soft-float for PowerPC64, and also makes
soft-float disable all vector instruction sets for both 32-bit and
64-bit modes. This latter part is necessary because the PPC backend
canonicalizes many Altivec vector types to floating-point types, and
so soft-float breaks scalarization support for many operations. Both
for embedded targets and for operating-system kernels desiring
soft-float support, it seems reasonable that disabling hardware
floating-point also disables vector instructions (embedded targets
without hardware floating point support are unlikely to have Altivec,
etc. and operating system kernels desiring not to use floating-point
registers to lower syscall cost are unlikely to want to use vector
registers either). If someone needs this to work, we'll need to
change the fact that we promote many Altivec operations to act on
v4f32. To make it possible to disable Altivec when soft-float is
enabled, hardware floating-point support needs to be expressed as a
positive feature, like the others, and not a negative feature,
because target features cannot have dependencies on the disabling of
some other feature. So +soft-float has now become -hard-float.
Fixes PR26970.
Pull in r283061 from upstream clang trunk (by Hal Finkel):
[PowerPC] Enable soft-float for PPC64, and +soft-float -> -hard-float
Enable soft-float support on PPC64, as the backend now supports it.
Also, the backend now uses -hard-float instead of +soft-float, so set
the target features accordingly.
Fixes PR26970.
Reported by: Mark Millard
PR: 214433
MFC r309212:
Add a few missed clang 3.9.0 files to OptionalObsoleteFiles.
MFC r309262:
Fix packaging for clang, lldb and lld 3.9.0
During the upgrade of clang/llvm etc to 3.9.0 in r309124, the PACKAGE
directive in the usr.bin/clang/*.mk files got dropped accidentally.
Restore it, with a few minor changes and additions:
* Correct license in clang.ucl to NCSA
* Add PACKAGE=clang for clang and most of the "ll" tools
* Put lldb in its own package
* Put lld in its own package
Reviewed by: gjb, jmallett
Differential Revision: https://reviews.freebsd.org/D8666
MFC r309656:
During the bootstrap phase, when building the minimal llvm library on
PowerPC, add lib/Support/Atomic.cpp. This is needed because upstream
llvm revision r271821 disabled the use of std::call_once, which causes
some fallback functions from Atomic.cpp to be used instead.
Reported by: Mark Millard
PR: 214902
MFC r309835:
Tentatively apply https://reviews.llvm.org/D18730 to work around gcc PR
70528 (bogus error: constructor required before non-static data member).
This should fix buildworld with the external gcc package.
Reported by: https://jenkins.freebsd.org/job/FreeBSD_HEAD_amd64_gcc/
MFC r310194:
Upgrade our copies of clang, llvm, lld, lldb, compiler-rt and libc++ to
3.9.1 release.
Please note that from 3.5.0 onwards, clang, llvm and lldb require C++11
support to build; see UPDATING for more information.
Release notes for llvm, clang and lld will be available here:
<http://releases.llvm.org/3.9.1/docs/ReleaseNotes.html>
<http://releases.llvm.org/3.9.1/tools/clang/docs/ReleaseNotes.html>
<http://releases.llvm.org/3.9.1/tools/lld/docs/ReleaseNotes.html>
Relnotes: yes
Diffstat (limited to 'contrib/llvm/lib/Analysis/VectorUtils.cpp')
| -rw-r--r-- | contrib/llvm/lib/Analysis/VectorUtils.cpp | 209 |
1 files changed, 66 insertions, 143 deletions
diff --git a/contrib/llvm/lib/Analysis/VectorUtils.cpp b/contrib/llvm/lib/Analysis/VectorUtils.cpp index 4b244ec..53e7153 100644 --- a/contrib/llvm/lib/Analysis/VectorUtils.cpp +++ b/contrib/llvm/lib/Analysis/VectorUtils.cpp @@ -17,6 +17,7 @@ #include "llvm/Analysis/ScalarEvolutionExpressions.h" #include "llvm/Analysis/ScalarEvolution.h" #include "llvm/Analysis/TargetTransformInfo.h" +#include "llvm/Analysis/ValueTracking.h" #include "llvm/Analysis/VectorUtils.h" #include "llvm/IR/GetElementPtrTypeIterator.h" #include "llvm/IR/PatternMatch.h" @@ -51,6 +52,7 @@ bool llvm::isTriviallyVectorizable(Intrinsic::ID ID) { case Intrinsic::nearbyint: case Intrinsic::round: case Intrinsic::bswap: + case Intrinsic::bitreverse: case Intrinsic::ctpop: case Intrinsic::pow: case Intrinsic::fma: @@ -78,150 +80,18 @@ bool llvm::hasVectorInstrinsicScalarOpd(Intrinsic::ID ID, } } -/// \brief Check call has a unary float signature -/// It checks following: -/// a) call should have a single argument -/// b) argument type should be floating point type -/// c) call instruction type and argument type should be same -/// d) call should only reads memory. -/// If all these condition is met then return ValidIntrinsicID -/// else return not_intrinsic. -Intrinsic::ID -llvm::checkUnaryFloatSignature(const CallInst &I, - Intrinsic::ID ValidIntrinsicID) { - if (I.getNumArgOperands() != 1 || - !I.getArgOperand(0)->getType()->isFloatingPointTy() || - I.getType() != I.getArgOperand(0)->getType() || !I.onlyReadsMemory()) - return Intrinsic::not_intrinsic; - - return ValidIntrinsicID; -} - -/// \brief Check call has a binary float signature -/// It checks following: -/// a) call should have 2 arguments. -/// b) arguments type should be floating point type -/// c) call instruction type and arguments type should be same -/// d) call should only reads memory. -/// If all these condition is met then return ValidIntrinsicID -/// else return not_intrinsic. -Intrinsic::ID -llvm::checkBinaryFloatSignature(const CallInst &I, - Intrinsic::ID ValidIntrinsicID) { - if (I.getNumArgOperands() != 2 || - !I.getArgOperand(0)->getType()->isFloatingPointTy() || - !I.getArgOperand(1)->getType()->isFloatingPointTy() || - I.getType() != I.getArgOperand(0)->getType() || - I.getType() != I.getArgOperand(1)->getType() || !I.onlyReadsMemory()) - return Intrinsic::not_intrinsic; - - return ValidIntrinsicID; -} - /// \brief Returns intrinsic ID for call. /// For the input call instruction it finds mapping intrinsic and returns /// its ID, in case it does not found it return not_intrinsic. -Intrinsic::ID llvm::getIntrinsicIDForCall(CallInst *CI, - const TargetLibraryInfo *TLI) { - // If we have an intrinsic call, check if it is trivially vectorizable. - if (IntrinsicInst *II = dyn_cast<IntrinsicInst>(CI)) { - Intrinsic::ID ID = II->getIntrinsicID(); - if (isTriviallyVectorizable(ID) || ID == Intrinsic::lifetime_start || - ID == Intrinsic::lifetime_end || ID == Intrinsic::assume) - return ID; +Intrinsic::ID llvm::getVectorIntrinsicIDForCall(const CallInst *CI, + const TargetLibraryInfo *TLI) { + Intrinsic::ID ID = getIntrinsicForCallSite(CI, TLI); + if (ID == Intrinsic::not_intrinsic) return Intrinsic::not_intrinsic; - } - - if (!TLI) - return Intrinsic::not_intrinsic; - - LibFunc::Func Func; - Function *F = CI->getCalledFunction(); - // We're going to make assumptions on the semantics of the functions, check - // that the target knows that it's available in this environment and it does - // not have local linkage. - if (!F || F->hasLocalLinkage() || !TLI->getLibFunc(F->getName(), Func)) - return Intrinsic::not_intrinsic; - - // Otherwise check if we have a call to a function that can be turned into a - // vector intrinsic. - switch (Func) { - default: - break; - case LibFunc::sin: - case LibFunc::sinf: - case LibFunc::sinl: - return checkUnaryFloatSignature(*CI, Intrinsic::sin); - case LibFunc::cos: - case LibFunc::cosf: - case LibFunc::cosl: - return checkUnaryFloatSignature(*CI, Intrinsic::cos); - case LibFunc::exp: - case LibFunc::expf: - case LibFunc::expl: - return checkUnaryFloatSignature(*CI, Intrinsic::exp); - case LibFunc::exp2: - case LibFunc::exp2f: - case LibFunc::exp2l: - return checkUnaryFloatSignature(*CI, Intrinsic::exp2); - case LibFunc::log: - case LibFunc::logf: - case LibFunc::logl: - return checkUnaryFloatSignature(*CI, Intrinsic::log); - case LibFunc::log10: - case LibFunc::log10f: - case LibFunc::log10l: - return checkUnaryFloatSignature(*CI, Intrinsic::log10); - case LibFunc::log2: - case LibFunc::log2f: - case LibFunc::log2l: - return checkUnaryFloatSignature(*CI, Intrinsic::log2); - case LibFunc::fabs: - case LibFunc::fabsf: - case LibFunc::fabsl: - return checkUnaryFloatSignature(*CI, Intrinsic::fabs); - case LibFunc::fmin: - case LibFunc::fminf: - case LibFunc::fminl: - return checkBinaryFloatSignature(*CI, Intrinsic::minnum); - case LibFunc::fmax: - case LibFunc::fmaxf: - case LibFunc::fmaxl: - return checkBinaryFloatSignature(*CI, Intrinsic::maxnum); - case LibFunc::copysign: - case LibFunc::copysignf: - case LibFunc::copysignl: - return checkBinaryFloatSignature(*CI, Intrinsic::copysign); - case LibFunc::floor: - case LibFunc::floorf: - case LibFunc::floorl: - return checkUnaryFloatSignature(*CI, Intrinsic::floor); - case LibFunc::ceil: - case LibFunc::ceilf: - case LibFunc::ceill: - return checkUnaryFloatSignature(*CI, Intrinsic::ceil); - case LibFunc::trunc: - case LibFunc::truncf: - case LibFunc::truncl: - return checkUnaryFloatSignature(*CI, Intrinsic::trunc); - case LibFunc::rint: - case LibFunc::rintf: - case LibFunc::rintl: - return checkUnaryFloatSignature(*CI, Intrinsic::rint); - case LibFunc::nearbyint: - case LibFunc::nearbyintf: - case LibFunc::nearbyintl: - return checkUnaryFloatSignature(*CI, Intrinsic::nearbyint); - case LibFunc::round: - case LibFunc::roundf: - case LibFunc::roundl: - return checkUnaryFloatSignature(*CI, Intrinsic::round); - case LibFunc::pow: - case LibFunc::powf: - case LibFunc::powl: - return checkBinaryFloatSignature(*CI, Intrinsic::pow); - } + if (isTriviallyVectorizable(ID) || ID == Intrinsic::lifetime_start || + ID == Intrinsic::lifetime_end || ID == Intrinsic::assume) + return ID; return Intrinsic::not_intrinsic; } @@ -231,8 +101,7 @@ Intrinsic::ID llvm::getIntrinsicIDForCall(CallInst *CI, unsigned llvm::getGEPInductionOperand(const GetElementPtrInst *Gep) { const DataLayout &DL = Gep->getModule()->getDataLayout(); unsigned LastOperand = Gep->getNumOperands() - 1; - unsigned GEPAllocSize = DL.getTypeAllocSize( - cast<PointerType>(Gep->getType()->getScalarType())->getElementType()); + unsigned GEPAllocSize = DL.getTypeAllocSize(Gep->getResultElementType()); // Walk backwards and try to peel off zeros. while (LastOperand > 1 && match(Gep->getOperand(LastOperand), m_Zero())) { @@ -318,8 +187,6 @@ Value *llvm::getStrideFromPointer(Value *Ptr, ScalarEvolution *SE, Loop *Lp) { // Strip off the size of access multiplication if we are still analyzing the // pointer. if (OrigPtr == Ptr) { - const DataLayout &DL = Lp->getHeader()->getModule()->getDataLayout(); - DL.getTypeAllocSize(PtrTy->getElementType()); if (const SCEVMulExpr *M = dyn_cast<SCEVMulExpr>(V)) { if (M->getOperand(0)->getSCEVType() != scConstant) return nullptr; @@ -502,6 +369,7 @@ llvm::computeMinimumValueSizes(ArrayRef<BasicBlock *> Blocks, DemandedBits &DB, uint64_t V = DB.getDemandedBits(I).getZExtValue(); DBits[Leader] |= V; + DBits[I] = V; // Casts, loads and instructions outside of our range terminate a chain // successfully. @@ -552,6 +420,20 @@ llvm::computeMinimumValueSizes(ArrayRef<BasicBlock *> Blocks, DemandedBits &DB, // Round up to a power of 2 if (!isPowerOf2_64((uint64_t)MinBW)) MinBW = NextPowerOf2(MinBW); + + // We don't modify the types of PHIs. Reductions will already have been + // truncated if possible, and inductions' sizes will have been chosen by + // indvars. + // If we are required to shrink a PHI, abandon this entire equivalence class. + bool Abort = false; + for (auto MI = ECs.member_begin(I), ME = ECs.member_end(); MI != ME; ++MI) + if (isa<PHINode>(*MI) && MinBW < (*MI)->getType()->getScalarSizeInBits()) { + Abort = true; + break; + } + if (Abort) + continue; + for (auto MI = ECs.member_begin(I), ME = ECs.member_end(); MI != ME; ++MI) { if (!isa<Instruction>(*MI)) continue; @@ -565,3 +447,44 @@ llvm::computeMinimumValueSizes(ArrayRef<BasicBlock *> Blocks, DemandedBits &DB, return MinBWs; } + +/// \returns \p I after propagating metadata from \p VL. +Instruction *llvm::propagateMetadata(Instruction *Inst, ArrayRef<Value *> VL) { + Instruction *I0 = cast<Instruction>(VL[0]); + SmallVector<std::pair<unsigned, MDNode *>, 4> Metadata; + I0->getAllMetadataOtherThanDebugLoc(Metadata); + + for (auto Kind : { LLVMContext::MD_tbaa, LLVMContext::MD_alias_scope, + LLVMContext::MD_noalias, LLVMContext::MD_fpmath, + LLVMContext::MD_nontemporal }) { + MDNode *MD = I0->getMetadata(Kind); + + for (int J = 1, E = VL.size(); MD && J != E; ++J) { + const Instruction *IJ = cast<Instruction>(VL[J]); + MDNode *IMD = IJ->getMetadata(Kind); + switch (Kind) { + case LLVMContext::MD_tbaa: + MD = MDNode::getMostGenericTBAA(MD, IMD); + break; + case LLVMContext::MD_alias_scope: + MD = MDNode::getMostGenericAliasScope(MD, IMD); + break; + case LLVMContext::MD_noalias: + MD = MDNode::intersect(MD, IMD); + break; + case LLVMContext::MD_fpmath: + MD = MDNode::getMostGenericFPMath(MD, IMD); + break; + case LLVMContext::MD_nontemporal: + MD = MDNode::intersect(MD, IMD); + break; + default: + llvm_unreachable("unhandled metadata"); + } + } + + Inst->setMetadata(Kind, MD); + } + + return Inst; +} |
