| # RUN: llc -march=amdgcn -verify-machineinstrs -run-pass si-wqm -o - %s | FileCheck %s | |
| --- | |
| # Check for awareness that s_or_saveexec_b64 clobbers SCC | |
| # | |
| #CHECK: S_OR_SAVEEXEC_B64 | |
| #CHECK: S_CMP_LT_I32 | |
| #CHECK: S_CSELECT_B32 | |
| name: test_wwm_scc | |
| alignment: 0 | |
| exposesReturnsTwice: false | |
| legalized: false | |
| regBankSelected: false | |
| selected: false | |
| tracksRegLiveness: true | |
| registers: | |
| - { id: 0, class: sgpr_32, preferred-register: '' } | |
| - { id: 1, class: sgpr_32, preferred-register: '' } | |
| - { id: 2, class: sgpr_32, preferred-register: '' } | |
| - { id: 3, class: vgpr_32, preferred-register: '' } | |
| - { id: 4, class: vgpr_32, preferred-register: '' } | |
| - { id: 5, class: sgpr_32, preferred-register: '' } | |
| - { id: 6, class: vgpr_32, preferred-register: '' } | |
| - { id: 7, class: vgpr_32, preferred-register: '' } | |
| - { id: 8, class: sreg_32_xm0, preferred-register: '' } | |
| - { id: 9, class: sreg_32, preferred-register: '' } | |
| - { id: 10, class: sreg_32, preferred-register: '' } | |
| - { id: 11, class: vgpr_32, preferred-register: '' } | |
| - { id: 12, class: vgpr_32, preferred-register: '' } | |
| liveins: | |
| - { reg: '$sgpr0', virtual-reg: '%0' } | |
| - { reg: '$sgpr1', virtual-reg: '%1' } | |
| - { reg: '$sgpr2', virtual-reg: '%2' } | |
| - { reg: '$vgpr0', virtual-reg: '%3' } | |
| body: | | |
| bb.0: | |
| liveins: $sgpr0, $sgpr1, $sgpr2, $vgpr0 | |
| %3 = COPY $vgpr0 | |
| %2 = COPY $sgpr2 | |
| %1 = COPY $sgpr1 | |
| %0 = COPY $sgpr0 | |
| S_CMP_LT_I32 0, %0, implicit-def $scc | |
| %12 = V_ADD_I32_e32 %3, %3, implicit-def $vcc, implicit $exec | |
| %5 = S_CSELECT_B32 %2, %1, implicit $scc | |
| %11 = V_ADD_I32_e32 %5, %12, implicit-def $vcc, implicit $exec | |
| $vgpr0 = WWM %11, implicit $exec | |
| SI_RETURN_TO_EPILOG $vgpr0 | |
| ... |