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| author | Benjamin Kramer <benny.kra@googlemail.com> | 2015-03-21 22:04:26 +0000 |
|---|---|---|
| committer | Benjamin Kramer <benny.kra@googlemail.com> | 2015-03-21 22:04:26 +0000 |
| commit | d6aa0ec737785d9b14f9dd9bb6d101892155f8c2 (patch) | |
| tree | a51f151812a3a7eb4dd0e308edcc095a45d4f921 /llvm/lib/Transforms | |
| parent | 7857d723f11a3a5c732c2e08d332ebca13e075ba (diff) | |
| download | bcm5719-llvm-d6aa0ec737785d9b14f9dd9bb6d101892155f8c2.tar.gz bcm5719-llvm-d6aa0ec737785d9b14f9dd9bb6d101892155f8c2.zip | |
[SimplifyLibCalls] Fix negative shifts being produced by the memchr -> bitfield transform.
llvm-svn: 232903
Diffstat (limited to 'llvm/lib/Transforms')
| -rw-r--r-- | llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp b/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp index f6cc431656b..5867d65e7e4 100644 --- a/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp +++ b/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp @@ -782,7 +782,9 @@ Value *LibCallSimplifier::optimizeMemChr(CallInst *CI, IRBuilder<> &B) { // memchr("\r\n", C, 2) != nullptr -> (C & ((1 << '\r') | (1 << '\n'))) != 0 // after bounds check. if (!CharC && !Str.empty() && isOnlyUsedInZeroEqualityComparison(CI)) { - unsigned char Max = *std::max_element(Str.begin(), Str.end()); + unsigned char Max = + *std::max_element(reinterpret_cast<const unsigned char *>(Str.begin()), + reinterpret_cast<const unsigned char *>(Str.end())); // Make sure the bit field we're about to create fits in a register on the // target. |
