# 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 ...