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author | shaw young <58664393+shawbyoung@users.noreply.github.com> | 2024-06-24 15:29:06 -0700 |
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committer | GitHub <noreply@github.com> | 2024-06-24 15:29:06 -0700 |
commit | 47c4cd5057b16848792b7026138f5b1fde19d44b (patch) | |
tree | ca1cd7a473c612f2dec63ac253dfacc1d3a297eb | |
parent | 99dff7756450212d00224c05239b87c63bdd16e2 (diff) | |
parent | a3a44bfbdfefe0928124f9e40d242507f75b87f4 (diff) | |
download | llvm-users/shawbyoung/spr/bolt-hash-based-function-matching.zip llvm-users/shawbyoung/spr/bolt-hash-based-function-matching.tar.gz llvm-users/shawbyoung/spr/bolt-hash-based-function-matching.tar.bz2 |
Merge branch 'main' into users/shawbyoung/spr/bolt-hash-based-function-matchingusers/shawbyoung/spr/bolt-hash-based-function-matching
-rw-r--r-- | llvm/include/llvm/IR/ProfDataUtils.h | 2 | ||||
-rw-r--r-- | llvm/lib/IR/Instructions.cpp | 6 | ||||
-rw-r--r-- | llvm/lib/IR/ProfDataUtils.cpp | 8 | ||||
-rw-r--r-- | llvm/lib/IR/Verifier.cpp | 12 |
4 files changed, 14 insertions, 14 deletions
diff --git a/llvm/include/llvm/IR/ProfDataUtils.h b/llvm/include/llvm/IR/ProfDataUtils.h index 1d7c97d..0bea517 100644 --- a/llvm/include/llvm/IR/ProfDataUtils.h +++ b/llvm/include/llvm/IR/ProfDataUtils.h @@ -66,6 +66,8 @@ bool hasBranchWeightOrigin(const MDNode *ProfileData); /// Return the offset to the first branch weight data unsigned getBranchWeightOffset(const MDNode *ProfileData); +unsigned getNumBranchWeights(const MDNode &ProfileData); + /// Extract branch weights from MD_prof metadata /// /// \param ProfileData A pointer to an MDNode. diff --git a/llvm/lib/IR/Instructions.cpp b/llvm/lib/IR/Instructions.cpp index 445323f..52e25a8 100644 --- a/llvm/lib/IR/Instructions.cpp +++ b/llvm/lib/IR/Instructions.cpp @@ -4002,11 +4002,7 @@ void SwitchInstProfUpdateWrapper::init() { if (!ProfileData) return; - // FIXME: This check belongs in ProfDataUtils. Its almost equivalent to - // getValidBranchWeightMDNode(), but the need to use llvm_unreachable - // makes them slightly different. - if (ProfileData->getNumOperands() != - SI.getNumSuccessors() + getBranchWeightOffset(ProfileData)) { + if (getNumBranchWeights(*ProfileData) != SI.getNumSuccessors()) { llvm_unreachable("number of prof branch_weights metadata operands does " "not correspond to number of succesors"); } diff --git a/llvm/lib/IR/ProfDataUtils.cpp b/llvm/lib/IR/ProfDataUtils.cpp index 2f8e61c..992ce34 100644 --- a/llvm/lib/IR/ProfDataUtils.cpp +++ b/llvm/lib/IR/ProfDataUtils.cpp @@ -142,6 +142,10 @@ unsigned getBranchWeightOffset(const MDNode *ProfileData) { return hasBranchWeightOrigin(ProfileData) ? 2 : 1; } +unsigned getNumBranchWeights(const MDNode &ProfileData) { + return ProfileData.getNumOperands() - getBranchWeightOffset(&ProfileData); +} + MDNode *getBranchWeightMDNode(const Instruction &I) { auto *ProfileData = I.getMetadata(LLVMContext::MD_prof); if (!isBranchWeightMD(ProfileData)) @@ -151,9 +155,7 @@ MDNode *getBranchWeightMDNode(const Instruction &I) { MDNode *getValidBranchWeightMDNode(const Instruction &I) { auto *ProfileData = getBranchWeightMDNode(I); - auto Offset = getBranchWeightOffset(ProfileData); - if (ProfileData && - ProfileData->getNumOperands() == Offset + I.getNumSuccessors()) + if (ProfileData && getNumBranchWeights(*ProfileData) == I.getNumSuccessors()) return ProfileData; return nullptr; } diff --git a/llvm/lib/IR/Verifier.cpp b/llvm/lib/IR/Verifier.cpp index 0abd5f7..c98f61d 100644 --- a/llvm/lib/IR/Verifier.cpp +++ b/llvm/lib/IR/Verifier.cpp @@ -4818,10 +4818,9 @@ void Verifier::visitProfMetadata(Instruction &I, MDNode *MD) { // Check consistency of !prof branch_weights metadata. if (ProfName == "branch_weights") { - unsigned int Offset = getBranchWeightOffset(MD); + unsigned NumBranchWeights = getNumBranchWeights(*MD); if (isa<InvokeInst>(&I)) { - Check(MD->getNumOperands() == (1 + Offset) || - MD->getNumOperands() == (2 + Offset), + Check(NumBranchWeights == 1 || NumBranchWeights == 2, "Wrong number of InvokeInst branch_weights operands", MD); } else { unsigned ExpectedNumOperands = 0; @@ -4841,10 +4840,11 @@ void Verifier::visitProfMetadata(Instruction &I, MDNode *MD) { CheckFailed("!prof branch_weights are not allowed for this instruction", MD); - Check(MD->getNumOperands() == Offset + ExpectedNumOperands, - "Wrong number of operands", MD); + Check(NumBranchWeights == ExpectedNumOperands, "Wrong number of operands", + MD); } - for (unsigned i = Offset; i < MD->getNumOperands(); ++i) { + for (unsigned i = getBranchWeightOffset(MD); i < MD->getNumOperands(); + ++i) { auto &MDO = MD->getOperand(i); Check(MDO, "second operand should not be null", MD); Check(mdconst::dyn_extract<ConstantInt>(MDO), |