Add a note about commuting conditional move.

llvm-svn: 74241
2009-06-26 00:28:48 +00:00 · 2009-06-26 00:28:48 +00:00 · e2c4d35f3e
parent 31167c61d5
commit e2c4d35f3e
1 changed files with 2 additions and 0 deletions
--- a/llvm/lib/Target/ARM/README.txt
+++ b/llvm/lib/Target/ARM/README.txt
@ -528,3 +528,5 @@ those operations and the ARMv6 scalar versions.

 //===---------------------------------------------------------------------===//

+ARM::MOVCCr is commutable (by flipping the condition). But we need to implement
+ARMInstrInfo::commuteInstruction() to support it.