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| author | Devang Patel <dpatel@apple.com> | 2006-10-19 20:59:13 +0000 |
|---|---|---|
| committer | Devang Patel <dpatel@apple.com> | 2006-10-19 20:59:13 +0000 |
| commit | 002e499650ee97df34dd53f1a6806860132a256c (patch) | |
| tree | c1c32c2e264b34ef50e9233ba8511c739a5db950 /test/Transforms/InstCombine/2006-10-19-SignedToUnsignedCastAndConst-2.ll | |
| parent | df308fa7aba36d9c7ca29abe24489adbcdfff697 (diff) | |
| download | external_llvm-002e499650ee97df34dd53f1a6806860132a256c.zip external_llvm-002e499650ee97df34dd53f1a6806860132a256c.tar.gz external_llvm-002e499650ee97df34dd53f1a6806860132a256c.tar.bz2 | |
It is OK to remove extra cast if operation is EQ/NE even though source
and destination sign may not match but other conditions are met.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31056 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/InstCombine/2006-10-19-SignedToUnsignedCastAndConst-2.ll')
| -rw-r--r-- | test/Transforms/InstCombine/2006-10-19-SignedToUnsignedCastAndConst-2.ll | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/2006-10-19-SignedToUnsignedCastAndConst-2.ll b/test/Transforms/InstCombine/2006-10-19-SignedToUnsignedCastAndConst-2.ll new file mode 100644 index 0000000..c10e62d --- /dev/null +++ b/test/Transforms/InstCombine/2006-10-19-SignedToUnsignedCastAndConst-2.ll @@ -0,0 +1,9 @@ +; The optimizer should be able to remove cast operation here. +; RUN: llvm-as %s -o - | opt -instcombine | llvm-dis | not grep 'cast.*int' + +bool %eq_signed_to_small_unsigned(sbyte %SB) { + %Y = cast sbyte %SB to uint ; <uint> [#uses=1] + %C = seteq uint %Y, 17 ; <bool> [#uses=1] + ret bool %C + } + |