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| author | Benjamin Kramer <benny.kra@googlemail.com> | 2020-04-14 18:13:49 +0200 |
|---|---|---|
| committer | Benjamin Kramer <benny.kra@googlemail.com> | 2020-04-14 18:16:15 +0200 |
| commit | 61ec4cdf6be9f05c65f9cc2e8a1d05320305e9fb (patch) | |
| tree | f0f4ad980a8e6adeb0ffee0a236a8c9bed358a25 /llvm/lib/Support/APInt.cpp | |
| parent | c8a5b30bac695e9fbb592cf77364a60ebd6e0dbd (diff) | |
| download | llvm-61ec4cdf6be9f05c65f9cc2e8a1d05320305e9fb.zip llvm-61ec4cdf6be9f05c65f9cc2e8a1d05320305e9fb.tar.gz llvm-61ec4cdf6be9f05c65f9cc2e8a1d05320305e9fb.tar.bz2 | |
[ADT] Mix the bit width into APInt's hash_value
Otherwise all zero values from i1 to i64 collide.
Diffstat (limited to 'llvm/lib/Support/APInt.cpp')
| -rw-r--r-- | llvm/lib/Support/APInt.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/llvm/lib/Support/APInt.cpp b/llvm/lib/Support/APInt.cpp index faef9a3..4a591ef 100644 --- a/llvm/lib/Support/APInt.cpp +++ b/llvm/lib/Support/APInt.cpp @@ -548,9 +548,11 @@ unsigned APInt::getBitsNeeded(StringRef str, uint8_t radix) { hash_code llvm::hash_value(const APInt &Arg) { if (Arg.isSingleWord()) - return hash_combine(Arg.U.VAL); + return hash_combine(Arg.BitWidth, Arg.U.VAL); - return hash_combine_range(Arg.U.pVal, Arg.U.pVal + Arg.getNumWords()); + return hash_combine( + Arg.BitWidth, + hash_combine_range(Arg.U.pVal, Arg.U.pVal + Arg.getNumWords())); } bool APInt::isSplat(unsigned SplatSizeInBits) const { |