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| author | David Blaikie <dblaikie@gmail.com> | 2019-06-26 19:18:50 +0000 |
|---|---|---|
| committer | David Blaikie <dblaikie@gmail.com> | 2019-06-26 19:18:50 +0000 |
| commit | 730a95c88aff8ceb7bd88cd4d8f30f533896cfb2 (patch) | |
| tree | 9de5ed58c5f2ea2a05d30e3d834022158186c133 | |
| parent | 806600987d39a4c47faa9dc993f7c5564bc17b13 (diff) | |
| download | bcm5719-llvm-730a95c88aff8ceb7bd88cd4d8f30f533896cfb2.tar.gz bcm5719-llvm-730a95c88aff8ceb7bd88cd4d8f30f533896cfb2.zip | |
Fix some undefined behavior (excessive shift of signed value) in r364253 detected by ubsan
llvm-svn: 364461
| -rw-r--r-- | llvm/include/llvm/Support/LEB128.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/include/llvm/Support/LEB128.h b/llvm/include/llvm/Support/LEB128.h index 0f83723b8b9..a02b83ca959 100644 --- a/llvm/include/llvm/Support/LEB128.h +++ b/llvm/include/llvm/Support/LEB128.h @@ -176,7 +176,7 @@ inline int64_t decodeSLEB128(const uint8_t *p, unsigned *n = nullptr, return 0; } Byte = *p++; - Value |= (int64_t(Byte & 0x7f) << Shift); + Value |= (uint64_t(Byte & 0x7f) << Shift); Shift += 7; } while (Byte >= 128); // Sign extend negative numbers if needed. |
