diff options
| author | Eric Christopher <echristo@apple.com> | 2010-03-11 19:24:34 +0000 |
|---|---|---|
| committer | Eric Christopher <echristo@apple.com> | 2010-03-11 19:24:34 +0000 |
| commit | 19888ca8b4bfcb4aabc957de3f5dce03f84da00c (patch) | |
| tree | b127a398aab6319e15ac2beedcaa9d0a61e5751e /lib/Transforms/Utils | |
| parent | 55282267e144a44232aa4731280d8871ba977bf2 (diff) | |
| download | external_llvm-19888ca8b4bfcb4aabc957de3f5dce03f84da00c.zip external_llvm-19888ca8b4bfcb4aabc957de3f5dce03f84da00c.tar.gz external_llvm-19888ca8b4bfcb4aabc957de3f5dce03f84da00c.tar.bz2 | |
Lower stpcpy_chk when possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98274 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Utils')
| -rw-r--r-- | lib/Transforms/Utils/BuildLibCalls.cpp | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/lib/Transforms/Utils/BuildLibCalls.cpp b/lib/Transforms/Utils/BuildLibCalls.cpp index 633aaf4..7f62166 100644 --- a/lib/Transforms/Utils/BuildLibCalls.cpp +++ b/lib/Transforms/Utils/BuildLibCalls.cpp @@ -87,6 +87,24 @@ Value *llvm::EmitStrCpy(Value *Dst, Value *Src, IRBuilder<> &B, return CI; } +/// EmitStpCpy - Emit a call to the stpcpy function to the builder, for the +/// specified pointer arguments. +Value *llvm::EmitStpCpy(Value *Dst, Value *Src, IRBuilder<> &B, + const TargetData *TD) { + Module *M = B.GetInsertBlock()->getParent()->getParent(); + AttributeWithIndex AWI[2]; + AWI[0] = AttributeWithIndex::get(2, Attribute::NoCapture); + AWI[1] = AttributeWithIndex::get(~0u, Attribute::NoUnwind); + const Type *I8Ptr = B.getInt8PtrTy(); + Value *StpCpy = M->getOrInsertFunction("stpcpy", AttrListPtr::get(AWI, 2), + I8Ptr, I8Ptr, I8Ptr, NULL); + CallInst *CI = B.CreateCall2(StpCpy, CastToCStr(Dst, B), CastToCStr(Src, B), + "stpcpy"); + if (const Function *F = dyn_cast<Function>(StpCpy->stripPointerCasts())) + CI->setCallingConv(F->getCallingConv()); + return CI; +} + /// EmitStrNCpy - Emit a call to the strncpy function to the builder, for the /// specified pointer arguments. Value *llvm::EmitStrNCpy(Value *Dst, Value *Src, Value *Len, |