derek.holloway
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57 lines
2.8 KiB
YAML
57 lines
2.8 KiB
YAML
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 6
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# RUN: llc -mtriple=amdgcn -mcpu=gfx1200 %s --passes=two-address-instruction -verify-each -o - | FileCheck --check-prefixes=GCN %s
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# Exercise very basic handling of BUNDLE'd instructions by the two-address-instruction pass.
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# This test is an example where it is best to keep the two-address instruction
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# and resolve the tie with a COPY that is expected to be coalesced.
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---
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name: test_fmac_bundle
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body: |
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bb.0:
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; GCN-LABEL: name: test_fmac_bundle
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; GCN: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
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; GCN-NEXT: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
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; GCN-NEXT: [[V_ADD_U32_e64_:%[0-9]+]]:vgpr_32 = V_ADD_U32_e64 [[COPY]], [[COPY1]], 0, implicit $exec
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; GCN-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
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; GCN-NEXT: [[DEF1:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
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; GCN-NEXT: [[COPY2:%[0-9]+]]:vgpr_32 = COPY [[V_ADD_U32_e64_]]
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; GCN-NEXT: BUNDLE implicit-def [[COPY2]], implicit [[DEF]], implicit [[DEF1]], implicit [[COPY2]](tied-def 0), implicit $mode, implicit $exec {
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; GCN-NEXT: [[COPY2:%[0-9]+]]:vgpr_32 = V_FMAC_F32_e32 killed [[DEF]], killed [[DEF1]], killed [[COPY2]], implicit $mode, implicit $exec
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; GCN-NEXT: }
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%10:vgpr_32 = COPY $vgpr0
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%11:vgpr_32 = COPY $vgpr1
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%2:vgpr_32 = V_ADD_U32_e64 %10, %11, 0, implicit $exec
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%0:vgpr_32 = IMPLICIT_DEF
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%1:vgpr_32 = IMPLICIT_DEF
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BUNDLE implicit-def %3:vgpr_32, implicit %0, implicit %1, implicit killed %2(tied-def 0), implicit $mode, implicit $exec {
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%3:vgpr_32 = V_FMAC_F32_e32 killed %0, killed %1, killed %2, implicit $mode, implicit $exec
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}
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...
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# This test is an example where conversion to three-address form is beneficial.
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---
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name: test_fmac_reuse_bundle
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body: |
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bb.0:
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; GCN-LABEL: name: test_fmac_reuse_bundle
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; GCN: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
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; GCN-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
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; GCN-NEXT: [[DEF1:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
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; GCN-NEXT: BUNDLE implicit-def %3, implicit [[DEF]], implicit [[DEF1]], implicit [[COPY]], implicit $mode, implicit $exec {
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; GCN-NEXT: [[V_FMA_F32_e64_:%[0-9]+]]:vgpr_32 = V_FMA_F32_e64 0, killed [[DEF]], 0, killed [[DEF1]], 0, killed [[COPY]], 0, 0, implicit $mode, implicit $exec
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; GCN-NEXT: }
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; GCN-NEXT: [[V_ADD_U32_e64_:%[0-9]+]]:vgpr_32 = V_ADD_U32_e64 [[V_FMA_F32_e64_]], [[COPY]], 0, implicit $exec
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%2:vgpr_32 = COPY $vgpr0
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%0:vgpr_32 = IMPLICIT_DEF
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%1:vgpr_32 = IMPLICIT_DEF
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BUNDLE implicit-def %3:vgpr_32, implicit %0, implicit %1, implicit %2(tied-def 0), implicit $mode, implicit $exec {
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%3:vgpr_32 = V_FMAC_F32_e32 killed %0, killed %1, killed %2, implicit $mode, implicit $exec
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}
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%4:vgpr_32 = V_ADD_U32_e64 %3, %2, 0, implicit $exec
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...
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