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| author | Benjamin Kramer <benny.kra@googlemail.com> | 2010-03-16 19:36:43 +0000 |
|---|---|---|
| committer | Benjamin Kramer <benny.kra@googlemail.com> | 2010-03-16 19:36:43 +0000 |
| commit | 4446b04052da9eaeef32369712b9b560117560b0 (patch) | |
| tree | 0ad73c354015140a03d14883891d1d9eb50a0e9b /lib | |
| parent | b85c7100c5f1ef34bace56c6978eca429df798f6 (diff) | |
| download | external_llvm-4446b04052da9eaeef32369712b9b560117560b0.zip external_llvm-4446b04052da9eaeef32369712b9b560117560b0.tar.gz external_llvm-4446b04052da9eaeef32369712b9b560117560b0.tar.bz2 | |
Mark str[r]chr readonly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98663 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Transforms/Scalar/SimplifyLibCalls.cpp | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/lib/Transforms/Scalar/SimplifyLibCalls.cpp b/lib/Transforms/Scalar/SimplifyLibCalls.cpp index 05027ae..9e263dd 100644 --- a/lib/Transforms/Scalar/SimplifyLibCalls.cpp +++ b/lib/Transforms/Scalar/SimplifyLibCalls.cpp @@ -1400,6 +1400,15 @@ bool SimplifyLibCalls::doInitialization(Module &M) { setOnlyReadsMemory(F); setDoesNotThrow(F); setDoesNotCapture(F, 1); + } else if (Name == "strchr" || + Name == "strrchr") { + if (FTy->getNumParams() != 2 || + !FTy->getParamType(0)->isPointerTy() || + !FTy->getParamType(1)->isIntegerTy()) + continue; + setOnlyReadsMemory(F); + setDoesNotThrow(F); + setDoesNotCapture(F, 1); } else if (Name == "strcpy" || Name == "stpcpy" || Name == "strcat" || @@ -1428,7 +1437,7 @@ bool SimplifyLibCalls::doInitialization(Module &M) { } else if (Name == "strcmp" || Name == "strspn" || Name == "strncmp" || - Name ==" strcspn" || + Name == "strcspn" || Name == "strcoll" || Name == "strcasecmp" || Name == "strncasecmp") { |