| # 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 |
| |
| ... |
