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bb4a569d92
We do not thread blocks with convergent calls, but this check was missing when we decide to insert PR Phis into it (which we only do for threading). Differential Revision: https://reviews.llvm.org/D83936 Reviewed By: nikic
43 lines
1.0 KiB
LLVM
43 lines
1.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -simplifycfg < %s | FileCheck %s
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; RUN: opt -S -passes=simplify-cfg < %s | FileCheck %s
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declare void @foo() convergent
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define i32 @test_01(i32 %a) {
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; CHECK-LABEL: @test_01(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[COND:%.*]] = icmp eq i32 [[A:%.*]], 0
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; CHECK-NEXT: br i1 [[COND]], label [[MERGE:%.*]], label [[IF_FALSE:%.*]]
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; CHECK: if.false:
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; CHECK-NEXT: call void @foo()
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; CHECK-NEXT: br label [[MERGE]]
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; CHECK: merge:
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; CHECK-NEXT: call void @foo()
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; CHECK-NEXT: br i1 [[COND]], label [[EXIT:%.*]], label [[IF_FALSE_2:%.*]]
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; CHECK: if.false.2:
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; CHECK-NEXT: call void @foo()
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; CHECK-NEXT: br label [[EXIT]]
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; CHECK: exit:
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; CHECK-NEXT: ret i32 [[A]]
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;
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entry:
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%cond = icmp eq i32 %a, 0
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br i1 %cond, label %merge, label %if.false
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if.false:
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call void @foo()
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br label %merge
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merge:
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call void @foo()
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br i1 %cond, label %exit, label %if.false.2
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if.false.2:
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call void @foo()
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br label %exit
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exit:
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ret i32 %a
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}
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