| # RUN: llc -march=amdgcn -mcpu=gfx900 -run-pass=si-fold-operands,dead-mi-elimination %s -o - | FileCheck -check-prefix=GCN %s |
| |
| # GCN-LABEL: name: fold_vgpr_copy |
| # GCN: %0:vreg_64 = IMPLICIT_DEF |
| # GCN-NEXT: %4:vgpr_32 = IMPLICIT_DEF |
| # GCN-NEXT: %3:vgpr_32 = IMPLICIT_DEF |
| # GCN-NEXT: DS_WRITE2_B32_gfx9 %0.sub0, killed %4, killed %3, 0, 1, 0, implicit $exec |
| |
| --- |
| name: fold_vgpr_copy |
| registers: |
| - { id: 0, class: vreg_64 } |
| - { id: 1, class: vgpr_32 } |
| - { id: 2, class: vgpr_32 } |
| - { id: 3, class: vgpr_32 } |
| - { id: 4, class: vgpr_32 } |
| body: | |
| bb.0: |
| |
| %0:vreg_64 = IMPLICIT_DEF |
| %4 = IMPLICIT_DEF |
| %3 = IMPLICIT_DEF |
| %1:vgpr_32 = COPY %0.sub0 |
| %2:vgpr_32 = COPY %1 |
| DS_WRITE2_B32_gfx9 %2, killed %4, killed %3, 0, 1, 0, implicit $exec |
| |
| ... |