1 # RUN: llc -O3 -mtriple=powerpc64le-unknown-linux-gnu -start-after ppc-mi-peepholes -ppc-late-peephole -ppc-asm-full-reg-names -verify-machineinstrs %s -o - | FileCheck %s
4 name: special_right_shift32_0
6 tracksRegLiveness: true
8 - { id: 0, class: gprc }
9 - { id: 1, class: gprc }
10 - { id: 2, class: gprc }
12 - { reg: '$r3', virtual-reg: '%0' }
13 machineFunctionInfo: {}
18 ; Ensure we do not attempt to transform this into srwi $r3, $r3, 0 in the
19 ; form specified by ISA 3.0b (rlwinm $r3, $r3, 32 - 0, 0, 31)
21 ; CHECK-LABEL: special_right_shift32_0:
22 ; CHECK: slwi r[[#]], r[[#]], 0
24 %0:gprc = COPY killed $r3
26 %2:gprc = SRW killed %0, killed %1
28 BLR implicit $lr, implicit $rm, implicit killed $r3
32 name: special_right_shift64_0
34 tracksRegLiveness: true
36 - { id: 0, class: g8rc }
37 - { id: 1, class: gprc }
38 - { id: 2, class: g8rc }
40 - { reg: '$x3', virtual-reg: '%0' }
41 machineFunctionInfo: {}
46 ; Ensure we do not attempt to transform this into srdi $r3, $r3, 0 in the
47 ; form specified by ISA 3.0b (rldicl $r3, $r3, 64 - 0, 0)
49 ; CHECK-LABEL: special_right_shift64_0:
50 ; CHECK: rotldi r[[#]], r[[#]], 0
52 %0:g8rc = COPY killed $x3
54 %2:g8rc = SRD killed %0, killed %1
56 BLR8 implicit $lr8, implicit $rm, implicit killed $x3