42 lines
1.2 KiB
LLVM
42 lines
1.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -o - -structurizecfg < %s | FileCheck %s
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define void @test1(i1 %arg) {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[ARG_INV:%.*]] = xor i1 [[ARG:%.*]], true
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; CHECK-NEXT: br label [[LOOP:%.*]]
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; CHECK: Flow:
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; CHECK-NEXT: br label [[FLOW1:%.*]]
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; CHECK: loop:
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; CHECK-NEXT: [[CTR:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[CTR_NEXT:%.*]], [[FLOW1]] ]
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; CHECK-NEXT: [[CTR_NEXT]] = add i32 [[CTR]], 1
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; CHECK-NEXT: br i1 [[ARG_INV]], label [[LOOP_A:%.*]], label [[FLOW1]]
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; CHECK: loop.a:
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; CHECK-NEXT: br i1 [[ARG_INV]], label [[LOOP_B:%.*]], label [[FLOW:%.*]]
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; CHECK: loop.b:
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; CHECK-NEXT: br label [[FLOW]]
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; CHECK: Flow1:
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; CHECK-NEXT: [[TMP0:%.*]] = phi i1 [ false, [[FLOW]] ], [ true, [[LOOP]] ]
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; CHECK-NEXT: br i1 [[TMP0]], label [[EXIT:%.*]], label [[LOOP]]
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; CHECK: exit:
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; CHECK-NEXT: ret void
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;
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entry:
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br label %loop
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loop:
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%ctr = phi i32 [ 0, %entry ], [ %ctr.next, %loop.a ], [ %ctr.next, %loop.b ]
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%ctr.next = add i32 %ctr, 1
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br i1 %arg, label %exit, label %loop.a
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loop.a:
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br i1 %arg, label %loop, label %loop.b
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loop.b:
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br label %loop
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exit:
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ret void
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}
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