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# RUN: llc -O0 -mtriple=mipsel-linux-gnu -run-pass=mips-prelegalizer-combiner -verify-machineinstrs -debug %s -o - 2>&1 | FileCheck %s -check-prefixes=MIPS32
# REQUIRES: asserts
--- |
define void @f() {entry: ret void}
...
---
# Check that we report attempts to combine each instruction from the input
# since none of them gets changed in this test.
# MIPS32-LABEL: Generic MI Combiner for: f
# MIPS32: Try combining %0:_(s32) = COPY $a0
# MIPS32: Try combining %1:_(s32) = COPY $a1
# MIPS32: Try combining %2:_(s32) = G_ADD %1:_, %0:_
# MIPS32: Try combining $v0 = COPY %2:_(s32)
# MIPS32: Try combining RetRA implicit $v0
name: f
alignment: 4
tracksRegLiveness: true
body: |
bb.1.entry:
liveins: $a0, $a1
; MIPS32-LABEL: name: f
; MIPS32: liveins: $a0, $a1
; MIPS32: [[COPY:%[0-9]+]]:_(s32) = COPY $a0
; MIPS32: [[COPY1:%[0-9]+]]:_(s32) = COPY $a1
; MIPS32: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[COPY1]], [[COPY]]
; MIPS32: $v0 = COPY [[ADD]](s32)
; MIPS32: RetRA implicit $v0
%0:_(s32) = COPY $a0
%1:_(s32) = COPY $a1
%2:_(s32) = G_ADD %1, %0
$v0 = COPY %2(s32)
RetRA implicit $v0
...
|
