374 lines
11 KiB
Plaintext
374 lines
11 KiB
Plaintext
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# RUN: llc -march=amdgcn -run-pass si-fold-operands -verify-machineinstrs %s -o - | FileCheck -check-prefix=GCN %s
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# GCN-LABEL: name: fold-imm-readfirstlane{{$}}
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# GCN: %1:sreg_32_xm0 = S_MOV_B32 123
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---
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name: fold-imm-readfirstlane
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tracksRegLiveness: true
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body: |
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bb.0:
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%0:vgpr_32 = V_MOV_B32_e32 123, implicit $exec
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%1:sreg_32_xm0 = V_READFIRSTLANE_B32 %0, implicit $exec
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...
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# GCN-LABEL: name: fold-imm-readfirstlane-readfirstlane{{$}}
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# GCN: %0:vgpr_32 = V_MOV_B32_e32 123, implicit $exec
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# GCN: %1:sreg_32_xm0 = S_MOV_B32 123
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# GCN: %2:vgpr_32 = V_MOV_B32_e32 123, implicit $exec
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# GCN: %3:sreg_32_xm0 = COPY %1
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---
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name: fold-imm-readfirstlane-readfirstlane
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tracksRegLiveness: true
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body: |
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bb.0:
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%0:vgpr_32 = V_MOV_B32_e32 123, implicit $exec
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%1:sreg_32_xm0 = V_READFIRSTLANE_B32 %0, implicit $exec
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%2:vgpr_32 = COPY %1
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%3:sreg_32_xm0 = V_READFIRSTLANE_B32 %2, implicit $exec
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...
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# GCN-LABEL: name: fold-copy-readfirstlane{{$}}
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# GCN: %0:sreg_32_xm0 = COPY $sgpr10
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# GCN: %1:vgpr_32 = COPY %0
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# GCN: %2:sreg_32_xm0 = COPY %0
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---
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name: fold-copy-readfirstlane
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $sgpr10
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%0:sreg_32_xm0 = COPY $sgpr10
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%1:vgpr_32 = COPY %0
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%2:sreg_32_xm0 = V_READFIRSTLANE_B32 %1, implicit $exec
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...
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# GCN-LABEL: name: no-fold-copy-readfirstlane-physreg0{{$}}
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# GCN: %0:vgpr_32 = COPY $sgpr10
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# GCN-NEXT: %1:sreg_32_xm0 = V_READFIRSTLANE_B32 %0, implicit $exec
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---
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name: no-fold-copy-readfirstlane-physreg0
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $sgpr10
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%0:vgpr_32 = COPY $sgpr10
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%1:sreg_32_xm0 = V_READFIRSTLANE_B32 %0, implicit $exec
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...
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# GCN-LABEL: name: no-fold-copy-readfirstlane-physreg1{{$}}
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# GCN: $vgpr0 = COPY $sgpr10
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# GCN-NEXT: %0:sreg_32_xm0 = V_READFIRSTLANE_B32 $vgpr0, implicit $exec
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---
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name: no-fold-copy-readfirstlane-physreg1
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $sgpr10
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$vgpr0 = COPY $sgpr10
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%0:sreg_32_xm0 = V_READFIRSTLANE_B32 $vgpr0, implicit $exec
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...
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# GCN-LABEL: name: no-fold-imm-readfirstlane-physreg{{$}}
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# GCN: $vgpr0 = V_MOV_B32_e32 123, implicit $exec
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# GCN-NEXT: V_READFIRSTLANE_B32 $vgpr0, implicit $exec
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---
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name: no-fold-imm-readfirstlane-physreg
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tracksRegLiveness: true
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body: |
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bb.0:
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$vgpr0 = V_MOV_B32_e32 123, implicit $exec
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%0:sreg_32_xm0 = V_READFIRSTLANE_B32 $vgpr0, implicit $exec
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...
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# TODO: This could be folded, if the search for exec modifications was
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# smarter.
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# GCN-LABEL: name: fold-imm-readfirstlane-cross-block{{$}}
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# GCN: V_MOV_B32
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# GCN: V_READFIRSTLANE_B32
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---
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name: fold-imm-readfirstlane-cross-block
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tracksRegLiveness: true
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body: |
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bb.0:
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%0:vgpr_32 = V_MOV_B32_e32 123, implicit $exec
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bb.1:
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%1:sreg_32_xm0 = V_READFIRSTLANE_B32 %0, implicit $exec
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...
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# TODO: This could be folded, if the search for exec modifications was
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# smarter.
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# GCN-LABEL: name: fold-copy-readfirstlane-cross-block{{$}}
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# GCN: V_MOV_B32
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# GCN: V_READFIRSTLANE_B32
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---
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name: fold-copy-readfirstlane-cross-block
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $sgpr12
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%0:sreg_32_xm0 = COPY $sgpr12
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%1:vgpr_32 = V_MOV_B32_e32 %0, implicit $exec
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bb.1:
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%2:sreg_32_xm0 = V_READFIRSTLANE_B32 %1, implicit $exec
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...
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# GCN-LABEL: name: fold-copy-readfirstlane-cross-block-exec-def{{$}}
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# GCN: V_MOV_B32
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# GCN: $exec = S_MOV_B64_term
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# GCN: V_READFIRSTLANE_B32
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---
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name: fold-copy-readfirstlane-cross-block-exec-def
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $sgpr10_sgpr11, $sgpr12
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%0:sreg_32_xm0 = COPY $sgpr12
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%1:vgpr_32 = V_MOV_B32_e32 %0, implicit $exec
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$exec = S_MOV_B64_term $sgpr10_sgpr11
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bb.1:
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%2:sreg_32_xm0 = V_READFIRSTLANE_B32 %1, implicit $exec
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...
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# GCN-LABEL: name: fold-copy-readfirstlane-same-block-exec-def{{$}}
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# GCN: COPY
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# GCN-NEXT: %1:vgpr_32 = COPY %0
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# GCN-NEXT: $exec = S_MOV_B64
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# GCN-NEXT: V_READFIRSTLANE_B32
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---
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name: fold-copy-readfirstlane-same-block-exec-def
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $sgpr10_sgpr11, $sgpr12
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%0:sreg_32_xm0 = COPY $sgpr12
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%1:vgpr_32 = COPY %0, implicit $exec
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$exec = S_MOV_B64 $sgpr10_sgpr11
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%2:sreg_32_xm0 = V_READFIRSTLANE_B32 %1, implicit $exec
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...
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# GCN-LABEL: name: fold-imm-readfirstlane-cross-block-exec-def{{$}}
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# GCN: V_MOV_B32
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# GCN: $exec = S_MOV_B64
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# GCN: V_READFIRSTLANE_B32
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---
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name: fold-imm-readfirstlane-cross-block-exec-def
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $sgpr10_sgpr11, $sgpr12_sgpr13
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%0:vgpr_32 = V_MOV_B32_e32 123, implicit $exec
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$exec = S_MOV_B64_term $sgpr10_sgpr11
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bb.1:
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%1:sreg_32_xm0 = V_READFIRSTLANE_B32 %0, implicit $exec
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...
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# GCN-LABEL: name: fold-imm-readfirstlane-same-block-exec-def{{$}}
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# GCN: V_MOV_B32
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# GCN-NEXT: $exec = S_MOV_B64
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# GCN-NEXT: V_READFIRSTLANE_B32
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---
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name: fold-imm-readfirstlane-same-block-exec-def
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $sgpr10_sgpr11
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%0:vgpr_32 = V_MOV_B32_e32 123, implicit $exec
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$exec = S_MOV_B64 $sgpr10_sgpr11
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%1:sreg_32_xm0 = V_READFIRSTLANE_B32 %0, implicit $exec
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...
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# GCN-LABEL: name: fold-sgpr-copy-readfirstlane-same-block-exec-def{{$}}
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# GCN: COPY
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# GCN-NEXT: $exec = S_MOV_B64
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# GCN-NEXT: V_READFIRSTLANE_B32
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---
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name: fold-sgpr-copy-readfirstlane-same-block-exec-def
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $sgpr10_sgpr11, $sgpr12
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%0:vgpr_32 = COPY $sgpr12
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$exec = S_MOV_B64 $sgpr10_sgpr11
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%1:sreg_32_xm0 = V_READFIRSTLANE_B32 %0, implicit $exec
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...
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# GCN-LABEL: name: fold-imm-readfirstlane-user{{$}}
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# GCN: %3:sreg_32_xm0 = S_MOV_B32 123
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---
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name: fold-imm-readfirstlane-user
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $vgpr0, $sgpr0_sgpr1
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%0:vgpr_32 = V_MOV_B32_e32 123, implicit $exec
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%1:sreg_32_xm0 = V_READFIRSTLANE_B32 %0, implicit $exec
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%2:sreg_32_xm0 = COPY %1
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%3:sreg_32_xm0 = COPY %2
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S_ENDPGM 0, implicit %3
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...
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# GCN-LABEL: name: fold-imm-readlane{{$}}
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# GCN: %1:sreg_32_xm0 = S_MOV_B32 123
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---
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name: fold-imm-readlane
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $vgpr0, $sgpr0_sgpr1
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%0:vgpr_32 = V_MOV_B32_e32 123, implicit $exec
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%1:sreg_32_xm0 = V_READLANE_B32 %0, 0, implicit $exec
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...
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# GCN-LABEL: name: fold-imm-readlane-src1{{$}}
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# GCN: %0:vgpr_32 = COPY $vgpr0
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# GCN: V_READLANE_B32 %0, 12, implicit $exec
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---
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name: fold-imm-readlane-src1
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $vgpr0
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%0:vgpr_32 = COPY $vgpr0
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%1:sreg_32_xm0 = S_MOV_B32 12
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%2:sreg_32_xm0 = V_READLANE_B32 %0, %1, implicit $exec
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...
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# Constant for subreg0
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# GCN-LABEL: name: fold-imm-readfirstlane-regsequence0{{$}}
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# GCN: %0:vgpr_32 = COPY $vgpr0
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# GCN-NEXT: %1:vgpr_32 = V_MOV_B32_e32 0, implicit $exec
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# GCN-NEXT: %2:vreg_64 = REG_SEQUENCE %0, %subreg.sub0, killed %1, %subreg.sub1
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# GCN-NEXT: %3:sgpr_32 = V_READFIRSTLANE_B32 %2.sub0, implicit $exec
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# GCN-NEXT: %4:sgpr_32 = S_MOV_B32 0
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---
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name: fold-imm-readfirstlane-regsequence0
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $vgpr0
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%0:vgpr_32 = COPY $vgpr0
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%1:vgpr_32 = V_MOV_B32_e32 0, implicit $exec
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%2:vreg_64 = REG_SEQUENCE %0:vgpr_32, %subreg.sub0, killed %1:vgpr_32, %subreg.sub1
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%3:sgpr_32 = V_READFIRSTLANE_B32 %2.sub0:vreg_64, implicit $exec
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%4:sgpr_32 = V_READFIRSTLANE_B32 %2.sub1:vreg_64, implicit $exec
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...
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# Constant for subreg1
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# GCN-LABEL: name: fold-imm-readfirstlane-regsequence1{{$}}
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# GCN: %0:vgpr_32 = COPY $vgpr0
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# GCN-NEXT: %1:vgpr_32 = V_MOV_B32_e32 0, implicit $exec
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# GCN-NEXT: %2:vreg_64 = REG_SEQUENCE %1, %subreg.sub0, killed %0, %subreg.sub1
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# GCN-NEXT: %3:sgpr_32 = S_MOV_B32 0
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# GCN-NEXT: %4:sgpr_32 = V_READFIRSTLANE_B32 %2.sub1, implicit $exec
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---
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name: fold-imm-readfirstlane-regsequence1
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $vgpr0
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%0:vgpr_32 = COPY $vgpr0
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%1:vgpr_32 = V_MOV_B32_e32 0, implicit $exec
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%2:vreg_64 = REG_SEQUENCE %1:vgpr_32, %subreg.sub0, killed %0:vgpr_32, %subreg.sub1
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%3:sgpr_32 = V_READFIRSTLANE_B32 %2.sub0:vreg_64, implicit $exec
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%4:sgpr_32 = V_READFIRSTLANE_B32 %2.sub1:vreg_64, implicit $exec
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...
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# Different constant regs for each subreg
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# GCN-LABEL: name: fold-imm-readfirstlane-regsequence2{{$}}
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# GCN: %0:vgpr_32 = V_MOV_B32_e32 0, implicit $exec
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# GCN-NEXT: %1:vgpr_32 = V_MOV_B32_e32 1, implicit $exec
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# GCN-NEXT: %2:vreg_64 = REG_SEQUENCE %0, %subreg.sub0, killed %1, %subreg.sub1
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# GCN-NEXT: %3:sgpr_32 = S_MOV_B32 0
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# GCN-NEXT: %4:sgpr_32 = S_MOV_B32 1
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---
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name: fold-imm-readfirstlane-regsequence2
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tracksRegLiveness: true
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body: |
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bb.0:
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%0:vgpr_32 = V_MOV_B32_e32 0, implicit $exec
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%1:vgpr_32 = V_MOV_B32_e32 1, implicit $exec
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%2:vreg_64 = REG_SEQUENCE %0:vgpr_32, %subreg.sub0, killed %1:vgpr_32, %subreg.sub1
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%3:sgpr_32 = V_READFIRSTLANE_B32 %2.sub0:vreg_64, implicit $exec
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%4:sgpr_32 = V_READFIRSTLANE_B32 %2.sub1:vreg_64, implicit $exec
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...
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# Same constant reg for each subreg, so there are multiple constant uses
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# GCN-LABEL: name: fold-imm-readfirstlane-regsequence3{{$}}
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# GCN: %0:vgpr_32 = V_MOV_B32_e32 0, implicit $exec
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# GCN-NEXT: %1:vgpr_32 = V_MOV_B32_e32 0, implicit $exec
|
||
|
|
# GCN-NEXT: %2:vreg_64 = REG_SEQUENCE %0, %subreg.sub0, killed %1, %subreg.sub1
|
||
|
|
# GCN-NEXT: %3:sgpr_32 = S_MOV_B32 0
|
||
|
|
# GCN-NEXT: %4:sgpr_32 = S_MOV_B32 0
|
||
|
|
---
|
||
|
|
name: fold-imm-readfirstlane-regsequence3
|
||
|
|
tracksRegLiveness: true
|
||
|
|
body: |
|
||
|
|
bb.0:
|
||
|
|
%0:vgpr_32 = V_MOV_B32_e32 0, implicit $exec
|
||
|
|
%1:vgpr_32 = V_MOV_B32_e32 0, implicit $exec
|
||
|
|
%2:vreg_64 = REG_SEQUENCE %0:vgpr_32, %subreg.sub0, killed %1:vgpr_32, %subreg.sub1
|
||
|
|
%3:sgpr_32 = V_READFIRSTLANE_B32 %2.sub0:vreg_64, implicit $exec
|
||
|
|
%4:sgpr_32 = V_READFIRSTLANE_B32 %2.sub1:vreg_64, implicit $exec
|
||
|
|
...
|
||
|
|
|
||
|
|
# FIXME: This should fold
|
||
|
|
# GCN-LABEL: name: fold-copy-readfirstlane-regsequence0{{$}}
|
||
|
|
# GCN: %0:vgpr_32 = COPY $sgpr10
|
||
|
|
# GCN-NEXT: %1:vgpr_32 = COPY $sgpr11
|
||
|
|
# GCN-NEXT: %2:vreg_64 = REG_SEQUENCE %0, %subreg.sub0, killed %1, %subreg.sub1
|
||
|
|
# GCN-NEXT: %3:sgpr_32 = V_READFIRSTLANE_B32 %2.sub0, implicit $exec
|
||
|
|
# GCN-NEXT: %4:sgpr_32 = V_READFIRSTLANE_B32 %2.sub1, implicit $exec
|
||
|
|
---
|
||
|
|
name: fold-copy-readfirstlane-regsequence0
|
||
|
|
tracksRegLiveness: true
|
||
|
|
body: |
|
||
|
|
bb.0:
|
||
|
|
liveins: $sgpr10, $sgpr11
|
||
|
|
%0:vgpr_32 = COPY $sgpr10
|
||
|
|
%1:vgpr_32 = COPY $sgpr11
|
||
|
|
%2:vreg_64 = REG_SEQUENCE %0:vgpr_32, %subreg.sub0, killed %1:vgpr_32, %subreg.sub1
|
||
|
|
%3:sgpr_32 = V_READFIRSTLANE_B32 %2.sub0:vreg_64, implicit $exec
|
||
|
|
%4:sgpr_32 = V_READFIRSTLANE_B32 %2.sub1:vreg_64, implicit $exec
|
||
|
|
...
|
||
|
|
|
||
|
|
# GCN-LABEL: name: fold-copy-readfirstlane-regsequence1{{$}}
|
||
|
|
# GCN: %0:sreg_32_xm0 = COPY $sgpr10
|
||
|
|
# GCN-NEXT: %1:sreg_32_xm0 = COPY $sgpr11
|
||
|
|
# GCN-NEXT: %2:vgpr_32 = COPY %0
|
||
|
|
# GCN-NEXT: %3:vgpr_32 = COPY %1
|
||
|
|
# GCN-NEXT: %4:vreg_64 = REG_SEQUENCE %2, %subreg.sub0, killed %3, %subreg.sub1
|
||
|
|
# GCN-NEXT: %5:sgpr_32 = V_READFIRSTLANE_B32 %4.sub0, implicit $exec
|
||
|
|
# GCN-NEXT: %6:sgpr_32 = V_READFIRSTLANE_B32 %4.sub1, implicit $exec
|
||
|
|
---
|
||
|
|
name: fold-copy-readfirstlane-regsequence1
|
||
|
|
tracksRegLiveness: true
|
||
|
|
body: |
|
||
|
|
bb.0:
|
||
|
|
liveins: $sgpr10, $sgpr11
|
||
|
|
%0:sreg_32_xm0 = COPY $sgpr10
|
||
|
|
%1:sreg_32_xm0 = COPY $sgpr11
|
||
|
|
%2:vgpr_32 = COPY %0
|
||
|
|
%3:vgpr_32 = COPY %1
|
||
|
|
%4:vreg_64 = REG_SEQUENCE %2:vgpr_32, %subreg.sub0, killed %3:vgpr_32, %subreg.sub1
|
||
|
|
%5:sgpr_32 = V_READFIRSTLANE_B32 %4.sub0:vreg_64, implicit $exec
|
||
|
|
%6:sgpr_32 = V_READFIRSTLANE_B32 %4.sub1:vreg_64, implicit $exec
|
||
|
|
...
|