ae77aceba5
UniformityAnalysis offers all of the same features and much more, there is no reason left to use the legacy DAs. See RFC: https://discourse.llvm.org/t/rfc-deprecate-divergenceanalysis-legacydivergenceanalysis/69538 - Remove LegacyDivergenceAnalysis.h/.cpp - Remove DivergenceAnalysis.h/.cpp + Unit tests - Remove SyncDependenceAnalysis - it was not a real registered analysis and was only used by DAs - Remove/adjust references to the passes in the docs where applicable - Remove TTI hook associated with those passes. - Move tests to UniformityAnalysis folder. - Remove RUN lines for the DA, leave only the UA ones. - Some tests had to be adjusted/removed depending on how they used the legacy DAs. Reviewed By: foad, sameerds Differential Revision: https://reviews.llvm.org/D148116
58 lines
1.7 KiB
YAML
58 lines
1.7 KiB
YAML
# RUN: llc -mtriple=amdgcn-- -run-pass=print-machine-uniformity -o - %s 2>&1 | FileCheck %s
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# CHECK-LABEL: MachineUniformityInfo for function: test
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# CHECK-LABEL: BLOCK bb.0
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# CHECK: DIVERGENT: %{{[0-9]*}}: %{{[0-9]*}}:_(s1) = G_ICMP intpred(eq), %{{[0-9]*}}:_(s32), %{{[0-9]*}}:_
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# CHECK-LABEL: BLOCK bb.1
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# CHECK-NOT: DIVERGENT: %{{[0-9]*}}: %{{[0-9]*}}:_(s32) = G_PHI %{{[0-9]*}}:_(s32), %bb.0, %{{[0-9]*}}:_(s32), %bb.2
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# CHECK: DIVERGENT: G_BRCOND %{{[0-9]*}}:_(s1), %bb.3
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# CHECK-LABEL: BLOCK bb.2
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# CHECK-NOT: DIVERGENT: %{{[0-9]*}}: %{{[0-9]*}}:_(s32), %{{[0-9]*}}:_(s1) = G_UADDO_
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# CHECK-NOT: DIVERGENT: G_BRCOND %{{[0-9]*}}:_(s1), %bb.3
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# CHECK-LABEL: BLOCK bb.3
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# CHECK: DIVERGENT: %{{[0-9]*}}: %{{[0-9]*}}:_(s1) = G_PHI %{{[0-9]*}}:_(s1), %bb.1, %{{[0-9]*}}:_(s1), %bb.2
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# CHECK: DIVERGENT: G_BRCOND %{{[0-9]*}}:_(s1), %bb.4
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# CHECK: DIVERGENT: G_BR %bb.5
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---
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name: test
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tracksRegLiveness: true
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body: |
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bb.0:
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successors: %bb.1
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%2:_(s1) = G_CONSTANT i1 true
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%3:_(s1) = G_CONSTANT i1 false
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%1:_(s32) = G_CONSTANT i32 0
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%20:_(s32) = G_CONSTANT i32 7
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%5:_(s32) = G_CONSTANT i32 -1
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%4:_(s32) = G_INTRINSIC intrinsic(@llvm.amdgcn.workitem.id.x)
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%6:_(s1) = G_ICMP intpred(eq), %4(s32), %5
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bb.1:
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successors: %bb.2, %bb.3
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%8:_(s32) = G_PHI %20(s32), %bb.0, %21(s32), %bb.2
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G_BRCOND %6(s1), %bb.3 ; Entrance to loop is divergent
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bb.2:
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successors: %bb.3, %bb.1
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%21:_(s32), %22:_(s1) = G_UADDO %8, %5
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%23:_(s1) = G_ICMP intpred(eq), %21(s32), %1
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G_BRCOND %23(s1), %bb.3
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G_BR %bb.1
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bb.3:
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%31:_(s1) = G_PHI %2(s1), %bb.1, %3(s1), %bb.2
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S_ENDPGM 0
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G_BRCOND %31(s1), %bb.4
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G_BR %bb.5
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bb.4:
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G_BR %bb.5
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bb.5:
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...
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