2018-01-04 18:02:50 +08:00
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -instcombine < %s -S | FileCheck %s
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define void @test() #0 {
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; CHECK-LABEL: @test(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[FOR_BODY:%.*]]
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; CHECK: for.body:
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; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ]
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; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1
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2019-12-02 23:28:17 +08:00
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; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ult i64 [[INDVARS_IV]], 39
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2018-01-04 18:02:50 +08:00
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; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END:%.*]], label [[FOR_BODY]]
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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: ; preds = %for.body, %entry
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%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
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%indvars.iv.next = add nsw i64 %indvars.iv, 1
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%exitcond = icmp slt i64 %indvars.iv.next, 40
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br i1 %exitcond, label %for.end, label %for.body
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for.end: ; preds = %for.body
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ret void
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}
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