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Clarify that InstructionSimplify only returns values that dominate the

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original instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122601 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan Sands 2010-12-28 18:01:19 +00:00
parent 9bc6a90146
commit 19f14dcf6a
1 changed files with 2 additions and 1 deletions
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3
include/llvm/Analysis/InstructionSimplify.h
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@ -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.
//
//===----------------------------------------------------------------------===//