forked from OSchip/llvm-project
43 lines
1.5 KiB
LLVM
43 lines
1.5 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -S -loop-unroll -unroll-force-peel-count=1 -verify-scev -verify-dom-info | FileCheck %s
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define void @test1(i32 %k) {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[FOR_BODY_PEEL_BEGIN:%.*]]
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; CHECK: for.body.peel.begin:
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; CHECK-NEXT: br label [[FOR_BODY_PEEL:%.*]]
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; CHECK: for.body.peel:
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; CHECK-NEXT: [[INC_PEEL:%.*]] = add nsw i32 0, 1
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; CHECK-NEXT: [[CMP_PEEL:%.*]] = icmp ult i32 0, [[K:%.*]]
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; CHECK-NEXT: br i1 [[CMP_PEEL]], label [[FOR_BODY_PEEL_NEXT:%.*]], label [[FOR_END:%.*]]
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; CHECK: for.body.peel.next:
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; CHECK-NEXT: br label [[FOR_BODY_PEEL_NEXT1:%.*]]
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; CHECK: for.body.peel.next1:
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; CHECK-NEXT: br label [[ENTRY_PEEL_NEWPH:%.*]]
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; CHECK: entry.peel.newph:
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; CHECK-NEXT: br label [[FOR_BODY:%.*]]
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; CHECK: for.body:
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; CHECK-NEXT: [[I_05:%.*]] = phi i32 [ [[INC_PEEL]], [[ENTRY_PEEL_NEWPH]] ], [ [[INC:%.*]], [[FOR_BODY]] ]
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; CHECK-NEXT: [[INC]] = add nuw nsw i32 [[I_05]], 1
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; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[I_05]], [[K]]
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; CHECK-NEXT: br i1 [[CMP]], label [[FOR_BODY]], label [[FOR_END_LOOPEXIT:%.*]], !llvm.loop !0
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; CHECK: for.end.loopexit:
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; CHECK-NEXT: br label [[FOR_END]]
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; CHECK: for.end:
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; CHECK-NEXT: ret void
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;
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entry:
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br label %for.body
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for.body:
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%i.05 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
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%inc = add nsw i32 %i.05, 1
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%cmp = icmp ult i32 %i.05, %k
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br i1 %cmp, label %for.body, label %for.end
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for.end:
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ret void
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}
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