eb7c947272
The same literal can be used multiple times in an instruction, not just once. We were not tracking the used value to verify this, so correct this. This helps avoid regressions in a future patch.
69 lines
2.4 KiB
YAML
69 lines
2.4 KiB
YAML
# RUN: llc -mtriple=amdgcn -mcpu=gfx1010 -run-pass=si-fold-operands,dead-mi-elimination -verify-machineinstrs %s -o - | FileCheck -check-prefix=GCN %s
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# RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -run-pass=si-fold-operands,dead-mi-elimination -verify-machineinstrs %s -o - | FileCheck -check-prefix=GCN %s
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# GCN-LABEL: name: fold_vgpr_to_vgpr_copy
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# GCN: %0:vreg_64 = IMPLICIT_DEF
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# GCN-NEXT: %1:vgpr_32 = IMPLICIT_DEF
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# GCN-NEXT: %2:vgpr_32 = IMPLICIT_DEF
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# GCN-NEXT: DS_WRITE2_B32_gfx9 %0.sub0, killed %1, killed %2, 0, 1, 0, implicit $exec
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---
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name: fold_vgpr_to_vgpr_copy
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body: |
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bb.0:
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%0:vreg_64 = IMPLICIT_DEF
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%4:vgpr_32 = IMPLICIT_DEF
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%3:vgpr_32 = IMPLICIT_DEF
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%1:vgpr_32 = COPY %0.sub0
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%2:vgpr_32 = COPY %1
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DS_WRITE2_B32_gfx9 %2, killed %4, killed %3, 0, 1, 0, implicit $exec
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...
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# GCN-LABEL: name: fold_sgpr_to_vgpr_copy
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# GCN: %0:sreg_64 = IMPLICIT_DEF
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# GCN-NEXT: %1:vgpr_32 = IMPLICIT_DEF
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# GCN-NEXT: %2:vgpr_32 = IMPLICIT_DEF
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# GCN-NEXT: %4:vgpr_32 = COPY %0.sub0
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# GCN-NEXT: DS_WRITE2_B32_gfx9 %4, killed %1, killed %2, 0, 1, 0, implicit $exec
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name: fold_sgpr_to_vgpr_copy
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body: |
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bb.0:
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%0:sreg_64 = IMPLICIT_DEF
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%4:vgpr_32 = IMPLICIT_DEF
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%3:vgpr_32 = IMPLICIT_DEF
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%1:sgpr_32 = COPY %0.sub0
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%2:vgpr_32 = COPY %1
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DS_WRITE2_B32_gfx9 %2, killed %4, killed %3, 0, 1, 0, implicit $exec
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...
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# GCN-LABEL: name: fma_sgpr_use
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# GCN: %0:sreg_64_xexec = IMPLICIT_DEF
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# GCN-NEXT: %4:vgpr_32 = nnan ninf nsz arcp contract afn reassoc V_FMA_F32_e64 2, %0.sub0, 0, 1073741824, 0, %0.sub1, 0, 0, implicit $mode, implicit $exec
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---
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name: fma_sgpr_use
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body: |
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bb.0:
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%0:sreg_64_xexec = IMPLICIT_DEF
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%1:sgpr_32 = COPY %0.sub0
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%2:sgpr_32 = COPY %0.sub1
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%3:vgpr_32 = COPY %2
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%4:vgpr_32 = nnan ninf nsz arcp contract afn reassoc V_FMAC_F32_e64 2, %1, 0, 1073741824, 0, %3, 0, 0, implicit $mode, implicit $exec
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DS_WRITE2_B32_gfx9 undef %5:vgpr_32, killed %4, undef %6:vgpr_32, 0, 1, 0, implicit $exec
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...
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# GCN-LABEL: name: fma_sgpr_sgpr_use
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# GCN: %0:sgpr_32 = IMPLICIT_DEF
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# GCN: %3:vgpr_32 = V_FMA_F32_e64 0, %0, 0, 1234567, 0, 1234567, 0, 0, implicit $mode, implicit $exec
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---
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name: fma_sgpr_sgpr_use
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body: |
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bb.0:
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%0:sgpr_32 = IMPLICIT_DEF
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%1:sgpr_32 = S_MOV_B32 1234567
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%2:vgpr_32 = COPY %1
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%3:vgpr_32 = V_FMAC_F32_e64 0, %0, 0, %1, 0, %2, 0, 0, implicit $mode, implicit $exec
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S_ENDPGM 0, implicit %3
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...
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