| # RUN: llc -march=amdgcn -mcpu=tonga %s -start-before detect-dead-lanes -stop-before machine-scheduler -verify-machineinstrs -o - | FileCheck -check-prefix=GCN %s |
| |
| # GCN-LABEL: name: dead_lane |
| # GCN: bb.0: |
| # GCN-NEXT: undef %3.sub0:vreg_64 = V_MAC_F32_e32 undef %1:vgpr_32, undef %1:vgpr_32, undef %3.sub0, implicit $exec |
| # GCN-NEXT: FLAT_STORE_DWORD undef %4:vreg_64, %3.sub0, |
| --- |
| name: dead_lane |
| tracksRegLiveness: true |
| body: | |
| bb.0: |
| %1:vgpr_32 = V_MAC_F32_e32 undef %0:vgpr_32, undef %0:vgpr_32, undef %0:vgpr_32, implicit $exec |
| %2:vgpr_32 = V_MAC_F32_e32 undef %0:vgpr_32, undef %0:vgpr_32, undef %0:vgpr_32, implicit $exec |
| %3:vreg_64 = REG_SEQUENCE %1:vgpr_32, %subreg.sub0, %2:vgpr_32, %subreg.sub1 |
| FLAT_STORE_DWORD undef %4:vreg_64, %3.sub0, 0, 0, 0, implicit $exec, implicit $flat_scr |
| S_ENDPGM 0 |
| |
| ... |
