| # 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 |
| |
| --- |
| name: special_right_shift32_0 |
| alignment: 2 |
| tracksRegLiveness: true |
| registers: |
| - { id: 0, class: gprc } |
| - { id: 1, class: gprc } |
| - { id: 2, class: gprc } |
| liveins: |
| - { reg: '$r3', virtual-reg: '%0' } |
| machineFunctionInfo: {} |
| body: | |
| bb.0.entry: |
| liveins: $r3 |
| |
| ; Ensure we do not attempt to transform this into srwi $r3, $r3, 0 in the |
| ; form specified by ISA 3.0b (rlwinm $r3, $r3, 32 - 0, 0, 31) |
| |
| ; CHECK-LABEL: special_right_shift32_0: |
| ; CHECK: slwi r[[#]], r[[#]], 0 |
| |
| %0:gprc = COPY killed $r3 |
| %1:gprc = LI 0 |
| %2:gprc = SRW killed %0, killed %1 |
| $r3 = COPY killed %2 |
| BLR implicit $lr, implicit $rm, implicit killed $r3 |
| |
| ... |
| --- |
| name: special_right_shift64_0 |
| alignment: 2 |
| tracksRegLiveness: true |
| registers: |
| - { id: 0, class: g8rc } |
| - { id: 1, class: gprc } |
| - { id: 2, class: g8rc } |
| liveins: |
| - { reg: '$x3', virtual-reg: '%0' } |
| machineFunctionInfo: {} |
| body: | |
| bb.0.entry: |
| liveins: $x3 |
| |
| ; Ensure we do not attempt to transform this into srdi $r3, $r3, 0 in the |
| ; form specified by ISA 3.0b (rldicl $r3, $r3, 64 - 0, 0) |
| |
| ; CHECK-LABEL: special_right_shift64_0: |
| ; CHECK: rotldi r[[#]], r[[#]], 0 |
| |
| %0:g8rc = COPY killed $x3 |
| %1:gprc = LI 0 |
| %2:g8rc = SRD killed %0, killed %1 |
| $x3 = COPY killed %2 |
| BLR8 implicit $lr8, implicit $rm, implicit killed $x3 |
| |
| ... |
