1# RUN: llc -O0 -mtriple=mipsel-linux-gnu -run-pass=mips-prelegalizer-combiner -verify-machineinstrs -debug %s -o - 2>&1 | FileCheck %s -check-prefixes=MIPS32 2# REQUIRES: asserts 3--- | 4 5 define void @f() {entry: ret void} 6 7... 8--- 9# Check that we report attempts to combine each instruction from the input 10# since none of them gets changed in this test. 11 12# MIPS32-LABEL: Generic MI Combiner for: f 13# MIPS32: Try combining %0:_(s32) = COPY $a0 14# MIPS32: Try combining %1:_(s32) = COPY $a1 15# MIPS32: Try combining %2:_(s32) = G_ADD %1:_, %0:_ 16# MIPS32: Try combining $v0 = COPY %2:_(s32) 17# MIPS32: Try combining RetRA implicit $v0 18name: f 19alignment: 4 20tracksRegLiveness: true 21body: | 22 bb.1.entry: 23 liveins: $a0, $a1 24 25 ; MIPS32-LABEL: name: f 26 ; MIPS32: liveins: $a0, $a1 27 ; MIPS32: [[COPY:%[0-9]+]]:_(s32) = COPY $a0 28 ; MIPS32: [[COPY1:%[0-9]+]]:_(s32) = COPY $a1 29 ; MIPS32: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[COPY1]], [[COPY]] 30 ; MIPS32: $v0 = COPY [[ADD]](s32) 31 ; MIPS32: RetRA implicit $v0 32 %0:_(s32) = COPY $a0 33 %1:_(s32) = COPY $a1 34 %2:_(s32) = G_ADD %1, %0 35 $v0 = COPY %2(s32) 36 RetRA implicit $v0 37 38... 39