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| author | Chris Lattner <sabre@nondot.org> | 2010-12-28 18:45:02 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2010-12-28 18:45:02 +0000 |
| commit | 102bc019005ce5e41cee47226f54e1090893b3d4 (patch) | |
| tree | 2c4cb9c92ec615f7d9161e4849975bdda4c53df9 | |
| parent | 85d91982ca740145fd7aa83e976d0a5af7a2ab10 (diff) | |
| download | bcm5719-llvm-102bc019005ce5e41cee47226f54e1090893b3d4.tar.gz bcm5719-llvm-102bc019005ce5e41cee47226f54e1090893b3d4.zip | |
add a note from llvmdev
llvm-svn: 122603
| -rw-r--r-- | llvm/lib/Target/README.txt | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/llvm/lib/Target/README.txt b/llvm/lib/Target/README.txt index c9561660b1c..ec5c412765f 100644 --- a/llvm/lib/Target/README.txt +++ b/llvm/lib/Target/README.txt @@ -2065,3 +2065,14 @@ entry: } //===---------------------------------------------------------------------===// + +This compare could fold to false: + +define i1 @g(i32 a) nounwind readnone { + %add = shl i32 %a, 1 + %mul = shl i32 %a, 1 + %cmp = icmp ugt i32 %add, %mul + ret i1 %cmp +} + +//===---------------------------------------------------------------------===// |
