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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 | 5cf5fd2ffac088b19348dcc6a048b1d4976ed5a0 (patch) | |
| tree | 4ec36f3399ff3fc438284be8be7d20c86d2bedcc /llvm/lib/Transforms/Scalar/SimplifyLibCalls.cpp | |
| parent | 3a374da973d84623fecdaea96b953adac36c9436 (diff) | |
| download | bcm5719-llvm-5cf5fd2ffac088b19348dcc6a048b1d4976ed5a0.tar.gz bcm5719-llvm-5cf5fd2ffac088b19348dcc6a048b1d4976ed5a0.zip | |
Mark str[r]chr readonly.
llvm-svn: 98663
Diffstat (limited to 'llvm/lib/Transforms/Scalar/SimplifyLibCalls.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/SimplifyLibCalls.cpp | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/Scalar/SimplifyLibCalls.cpp b/llvm/lib/Transforms/Scalar/SimplifyLibCalls.cpp index 05027ae528e..9e263ddf91b 100644 --- a/llvm/lib/Transforms/Scalar/SimplifyLibCalls.cpp +++ b/llvm/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") { |
