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| author | Rafael Espindola <rafael.espindola@gmail.com> | 2013-04-22 14:58:02 +0000 |
|---|---|---|
| committer | Rafael Espindola <rafael.espindola@gmail.com> | 2013-04-22 14:58:02 +0000 |
| commit | cde25b435a907e7741da0c0d18953850936277c4 (patch) | |
| tree | 30353631edc608810481f7ad09e5163c2826d3f6 /lib/Transforms | |
| parent | 2c55362848eab1a8552a31f8da1a47d17105b4d9 (diff) | |
| download | llvm-cde25b435a907e7741da0c0d18953850936277c4.tar.gz llvm-cde25b435a907e7741da0c0d18953850936277c4.tar.bz2 llvm-cde25b435a907e7741da0c0d18953850936277c4.tar.xz | |
Clarify that llvm.used can contain aliases.
Also add a check for llvm.used in the verifier and simplify clients now that
they can assume they have a ConstantArray.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180019 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms')
| -rw-r--r-- | lib/Transforms/IPO/ConstantMerge.cpp | 5 | ||||
| -rw-r--r-- | lib/Transforms/IPO/StripSymbols.cpp | 7 | ||||
| -rw-r--r-- | lib/Transforms/Scalar/GlobalMerge.cpp | 5 |
3 files changed, 7 insertions, 10 deletions
diff --git a/lib/Transforms/IPO/ConstantMerge.cpp b/lib/Transforms/IPO/ConstantMerge.cpp index 8336d3ad34..b63495b968 100644 --- a/lib/Transforms/IPO/ConstantMerge.cpp +++ b/lib/Transforms/IPO/ConstantMerge.cpp @@ -66,9 +66,8 @@ ModulePass *llvm::createConstantMergePass() { return new ConstantMerge(); } static void FindUsedValues(GlobalVariable *LLVMUsed, SmallPtrSet<const GlobalValue*, 8> &UsedValues) { if (LLVMUsed == 0) return; - ConstantArray *Inits = dyn_cast<ConstantArray>(LLVMUsed->getInitializer()); - if (Inits == 0) return; - + ConstantArray *Inits = cast<ConstantArray>(LLVMUsed->getInitializer()); + for (unsigned i = 0, e = Inits->getNumOperands(); i != e; ++i) if (GlobalValue *GV = dyn_cast<GlobalValue>(Inits->getOperand(i)->stripPointerCasts())) diff --git a/lib/Transforms/IPO/StripSymbols.cpp b/lib/Transforms/IPO/StripSymbols.cpp index 5f8681ff45..3396f7929e 100644 --- a/lib/Transforms/IPO/StripSymbols.cpp +++ b/lib/Transforms/IPO/StripSymbols.cpp @@ -195,10 +195,9 @@ static void findUsedValues(GlobalVariable *LLVMUsed, SmallPtrSet<const GlobalValue*, 8> &UsedValues) { if (LLVMUsed == 0) return; UsedValues.insert(LLVMUsed); - - ConstantArray *Inits = dyn_cast<ConstantArray>(LLVMUsed->getInitializer()); - if (Inits == 0) return; - + + ConstantArray *Inits = cast<ConstantArray>(LLVMUsed->getInitializer()); + for (unsigned i = 0, e = Inits->getNumOperands(); i != e; ++i) if (GlobalValue *GV = dyn_cast<GlobalValue>(Inits->getOperand(i)->stripPointerCasts())) diff --git a/lib/Transforms/Scalar/GlobalMerge.cpp b/lib/Transforms/Scalar/GlobalMerge.cpp index 5d02c68a7a..4796eb2953 100644 --- a/lib/Transforms/Scalar/GlobalMerge.cpp +++ b/lib/Transforms/Scalar/GlobalMerge.cpp @@ -200,9 +200,8 @@ void GlobalMerge::collectUsedGlobalVariables(Module &M) { if (!GV || !GV->hasInitializer()) return; // Should be an array of 'i8*'. - const ConstantArray *InitList = dyn_cast<ConstantArray>(GV->getInitializer()); - if (InitList == 0) return; - + const ConstantArray *InitList = cast<ConstantArray>(GV->getInitializer()); + for (unsigned i = 0, e = InitList->getNumOperands(); i != e; ++i) if (const GlobalVariable *G = dyn_cast<GlobalVariable>(InitList->getOperand(i)->stripPointerCasts())) |