llvm/test/CodeGen/Mips/gpreg-lazy-binding.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

28 lines
548 B
LLVM

; RUN: llc -march=mipsel -disable-mips-delay-filler < %s | FileCheck %s
@g = external global i32
; CHECK: or $gp
; CHECK: jalr $25
; CHECK: nop
; CHECK-NOT: or $gp
; CHECK: jalr $25
define void @f0() nounwind {
entry:
tail call void @externalFunc() nounwind
tail call fastcc void @internalFunc()
ret void
}
declare void @externalFunc()
define internal fastcc void @internalFunc() nounwind noinline {
entry:
%0 = load i32* @g, align 4
%inc = add nsw i32 %0, 1
store i32 %inc, i32* @g, align 4
ret void
}