forked from OSchip/llvm-project
42 lines
1.3 KiB
LLVM
42 lines
1.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -fix-irreducible -enable-new-pm=0 -S | FileCheck %s
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define void @loop_1(i32 %Value, i1 %PredEntry, i1 %PredD) {
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; CHECK-LABEL: @loop_1(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[IRR_GUARD:%.*]]
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; CHECK: A:
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; CHECK-NEXT: br label [[IRR_GUARD]]
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; CHECK: B:
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; CHECK-NEXT: br label [[NODEBLOCK:%.*]]
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; CHECK: NodeBlock:
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; CHECK-NEXT: [[PIVOT:%.*]] = icmp slt i32 [[VALUE:%.*]], 1
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; CHECK-NEXT: br i1 [[PIVOT]], label [[LEAFBLOCK:%.*]], label [[LEAFBLOCK1:%.*]]
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; CHECK: LeafBlock1:
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; CHECK-NEXT: [[SWITCHLEAF2:%.*]] = icmp eq i32 [[VALUE]], 1
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; CHECK-NEXT: br i1 [[SWITCHLEAF2]], label [[IRR_GUARD]], label [[EXIT:%.*]]
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; CHECK: LeafBlock:
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; CHECK-NEXT: [[SWITCHLEAF:%.*]] = icmp eq i32 [[VALUE]], 0
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; CHECK-NEXT: br i1 [[SWITCHLEAF]], label [[IRR_GUARD]], label [[EXIT]]
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; CHECK: exit:
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; CHECK-NEXT: ret void
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; CHECK: irr.guard:
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; CHECK-NEXT: [[GUARD_A:%.*]] = phi i1 [ true, [[LEAFBLOCK]] ], [ [[PREDENTRY:%.*]], [[ENTRY:%.*]] ], [ false, [[LEAFBLOCK1]] ], [ false, [[A:%.*]] ]
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; CHECK-NEXT: br i1 [[GUARD_A]], label [[A]], label [[B:%.*]]
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;
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entry:
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br i1 %PredEntry, label %A, label %B
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A:
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br label %B
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B:
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switch i32 %Value, label %exit [
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i32 0, label %A
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i32 1, label %B
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]
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exit:
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ret void
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}
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