1 # NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
2 # RUN: llc -mtriple=powerpc64le -simplify-mir -verify-machineinstrs \
3 # RUN: -run-pass=peephole-opt %s -o - | FileCheck %s
4 # Test to show effect of `optimizeCompareInstr` when `equalityOnly` is true.
8 tracksRegLiveness: true
10 - { id: 0, class: g8rc }
11 - { id: 1, class: g8rc }
12 - { id: 2, class: g8rc_and_g8rc_nox0 }
13 - { id: 3, class: crrc }
14 - { id: 4, class: g8rc_and_g8rc_nox0 }
15 - { id: 5, class: g8rc }
17 - { reg: '$x3', virtual-reg: '%0' }
18 - { reg: '$x4', virtual-reg: '%1' }
21 machineFunctionInfo: {}
26 ; CHECK-LABEL: name: h
27 ; CHECK: liveins: $x3, $x4
28 ; CHECK: [[COPY:%[0-9]+]]:g8rc = COPY $x4
29 ; CHECK: [[COPY1:%[0-9]+]]:g8rc = COPY $x3
30 ; CHECK: [[SUBF8_rec:%[0-9]+]]:g8rc_and_g8rc_nox0 = SUBF8_rec [[COPY]], [[COPY1]], implicit-def $cr0
31 ; CHECK: [[COPY2:%[0-9]+]]:crrc = COPY killed $cr0
32 ; CHECK: [[ISEL8_:%[0-9]+]]:g8rc = ISEL8 $zero8, [[SUBF8_rec]], [[COPY2]].sub_eq
33 ; CHECK: $x3 = COPY [[ISEL8_]]
34 ; CHECK: BLR8 implicit $lr8, implicit $rm, implicit $x3
37 %2:g8rc_and_g8rc_nox0 = SUBF8 %1, %0
38 %3:crrc = CMPLD %0, %1
39 %4:g8rc_and_g8rc_nox0 = LI8 0
40 %5:g8rc = ISEL8 %4, %2, %3.sub_eq
42 BLR8 implicit $lr8, implicit $rm, implicit $x3