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
5 define void @f() {entry: ret void}
9 # Check that we report attempts to combine each instruction from the input
10 # since none of them gets changed in this test.
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
20 tracksRegLiveness: true
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
34 %2:_(s32) = G_ADD %1, %0