llvm/test/CodeGen/Mips/frame-address.ll
Akira Hatanaka 68fe665b9a [mips] Use "or $r0, $r1, $zero" instead of "addu $r0, $zero, $r1" to copy
physical register $r1 to $r0.

GNU disassembler recognizes an "or" instruction as a "move", and this change
makes the disassembled code easier to read.

Original patch by Reed Kotler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170655 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-20 04:06:06 +00:00

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LLVM

; RUN: llc -march=mipsel < %s | FileCheck %s
declare i8* @llvm.frameaddress(i32) nounwind readnone
define i8* @f() nounwind {
entry:
%0 = call i8* @llvm.frameaddress(i32 0)
ret i8* %0
; CHECK: addu $fp, $sp, $zero
; CHECK: or $2, $fp, $zero
}