llvm-6502/test/CodeGen/ARM/2009-06-18-ThumbCommuteMul.ll
Eli Friedman 6b7bb42c36 Mark a few Thumb instructions commutable; just happened to spot this
while experimenting.  I'm reasonably sure this is correct, but please 
tell me if these instructions have some strange property which makes this
change unsafe.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73746 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-19 01:43:08 +00:00

9 lines
176 B
LLVM

; RUN: llvm-as < %s | llc -march=thumb | grep r0 | count 1
define i32 @a(i32 %x, i32 %y) nounwind readnone {
entry:
%mul = mul i32 %y, %x ; <i32> [#uses=1]
ret i32 %mul
}