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| author | Duncan Sands <baldrick@free.fr> | 2010-12-28 18:01:19 +0000 |
|---|---|---|
| committer | Duncan Sands <baldrick@free.fr> | 2010-12-28 18:01:19 +0000 |
| commit | 19f14dcf6af11b5520acfc5c2fd4100ec1972b44 (patch) | |
| tree | db1cf80e12608e5ff00a3d8f6b85cfa6afb06ece /include/llvm/Analysis/InstructionSimplify.h | |
| parent | 9bc6a90146417af03144fa2f7dd94f9945b57c06 (diff) | |
| download | llvm-19f14dcf6af11b5520acfc5c2fd4100ec1972b44.tar.gz llvm-19f14dcf6af11b5520acfc5c2fd4100ec1972b44.tar.bz2 llvm-19f14dcf6af11b5520acfc5c2fd4100ec1972b44.tar.xz | |
Clarify that InstructionSimplify only returns values that dominate the
original instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122601 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/Analysis/InstructionSimplify.h')
| -rw-r--r-- | include/llvm/Analysis/InstructionSimplify.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/llvm/Analysis/InstructionSimplify.h b/include/llvm/Analysis/InstructionSimplify.h index c2812dfd25..653971377d 100644 --- a/include/llvm/Analysis/InstructionSimplify.h +++ b/include/llvm/Analysis/InstructionSimplify.h @@ -11,7 +11,8 @@ // that do not require creating new instructions. This does constant folding // ("add i32 1, 1" -> "2") but can also handle non-constant operands, either // returning a constant ("and i32 %x, 0" -> "0") or an already existing value -// ("and i32 %x, %x" -> "%x"). +// ("and i32 %x, %x" -> "%x"). If the simplification is also an instruction +// then it dominates the original instruction. // //===----------------------------------------------------------------------===// |