derek.holloway
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79 lines
3.0 KiB
LLVM
79 lines
3.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -mtriple=amdgcn-- -S -amdgpu-unify-divergent-exit-nodes -verify -simplifycfg-require-and-preserve-domtree=1 %s | FileCheck -check-prefix=IR %s
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; Make sure that the phi in n28 is updated when the block is split by unify
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; divergent exit nodes.
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define amdgpu_ps void @_amdgpu_ps_main() local_unnamed_addr #3 {
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; IR-LABEL: @_amdgpu_ps_main(
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; IR-NEXT: .entry:
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; IR-NEXT: br label [[DOTLOOPEXIT:%.*]]
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; IR: .loopexit:
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; IR-NEXT: br label [[N28:%.*]]
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; IR: n28:
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; IR-NEXT: [[DOT01:%.*]] = phi float [ 0.000000e+00, [[DOTLOOPEXIT]] ], [ [[N29:%.*]], [[TRANSITIONBLOCK:%.*]] ]
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; IR-NEXT: [[N29]] = fadd float [[DOT01]], 1.000000e+00
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; IR-NEXT: [[N30:%.*]] = fcmp ogt float [[N29]], 4.000000e+00
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; IR-NEXT: br i1 true, label [[TRANSITIONBLOCK]], label [[DUMMYRETURNBLOCK:%.*]]
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; IR: TransitionBlock:
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; IR-NEXT: br i1 [[N30]], label [[DOTLOOPEXIT]], label [[N28]]
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; IR: n31:
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; IR-NEXT: ret void
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; IR: DummyReturnBlock:
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; IR-NEXT: ret void
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;
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.entry:
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br label %.loopexit
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.loopexit: ; preds = %n28, %.entry
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br label %n28
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n28: ; preds = %.loopexit, %n28
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%.01 = phi float [ 0.000000e+00, %.loopexit ], [ %n29, %n28 ]
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%n29 = fadd float %.01, 1.0
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%n30 = fcmp ogt float %n29, 4.000000e+00
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br i1 %n30, label %.loopexit, label %n28
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n31: ; preds =
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ret void
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}
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define amdgpu_ps void @_amdgpu_ps_main_callbr() local_unnamed_addr #3 {
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; IR-LABEL: @_amdgpu_ps_main_callbr(
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; IR-NEXT: .entry:
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; IR-NEXT: callbr void asm "", ""()
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; IR-NEXT: to label [[DOTLOOPEXIT:%.*]] []
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; IR: .loopexit:
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; IR-NEXT: callbr void asm "", ""()
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; IR-NEXT: to label [[N28:%.*]] []
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; IR: n28:
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; IR-NEXT: [[DOT01:%.*]] = phi float [ 0.000000e+00, [[DOTLOOPEXIT]] ], [ [[N29:%.*]], [[TRANSITIONBLOCK:%.*]] ]
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; IR-NEXT: [[N29]] = fadd float [[DOT01]], 1.000000e+00
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; IR-NEXT: [[N30:%.*]] = fcmp ogt float [[N29]], 4.000000e+00
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; IR-NEXT: [[N30_32:%.*]] = zext i1 [[N30]] to i32
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; IR-NEXT: br i1 true, label [[TRANSITIONBLOCK]], label [[DUMMYRETURNBLOCK:%.*]]
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; IR: TransitionBlock:
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; IR-NEXT: callbr void asm "", "r,!i"(i32 [[N30_32]])
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; IR-NEXT: to label [[DOTLOOPEXIT]] [label %n28]
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; IR: n31:
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; IR-NEXT: ret void
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; IR: DummyReturnBlock:
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; IR-NEXT: ret void
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;
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.entry:
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callbr void asm "", ""() to label %.loopexit []
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.loopexit: ; preds = %n28, %.entry
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callbr void asm "", ""() to label %n28 []
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n28: ; preds = %.loopexit, %n28
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%.01 = phi float [ 0.000000e+00, %.loopexit ], [ %n29, %n28 ]
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%n29 = fadd float %.01, 1.0
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%n30 = fcmp ogt float %n29, 4.000000e+00
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%n30.32 = zext i1 %n30 to i32
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callbr void asm "", "r,!i"(i32 %n30.32) to label %.loopexit [label %n28]
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n31: ; preds =
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ret void
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}
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