523573e90d
This reverts 3af8a11 because I'd used an upper bound where an lower bound was required. The included reduced test case demonstrates the issue.
48 lines
1.4 KiB
LLVM
48 lines
1.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -loop-deletion -S < %s | FileCheck %s
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@a = global i1 false, align 4
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define i32 @main() {
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; CHECK-LABEL: @main(
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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: [[D_015:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ]
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; CHECK-NEXT: call void @foo()
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; CHECK-NEXT: [[DOTB:%.*]] = load i1, i1* @a, align 4
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; CHECK-NEXT: [[CONV1:%.*]] = select i1 [[DOTB]], i32 -128, i32 1
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; CHECK-NEXT: [[CMP2_NOT:%.*]] = icmp ugt i32 [[CONV1]], [[D_015]]
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; CHECK-NEXT: br i1 [[CMP2_NOT]], label [[CLEANUP:%.*]], label [[FOR_INC8:%.*]]
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; CHECK: for.inc8:
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; CHECK-NEXT: [[INC9:%.*]] = add nuw nsw i32 [[D_015]], 1
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; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i32 [[INC9]], 19
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; CHECK-NEXT: br label [[CLEANUP]]
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; CHECK: cleanup:
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; CHECK-NEXT: store i1 true, i1* @a, align 4
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; CHECK-NEXT: ret i32 0
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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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%d.015 = phi i32 [ 0, %entry ], [ %inc9, %for.inc8 ]
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call void @foo()
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%.b = load i1, i1* @a, align 4
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%conv1 = select i1 %.b, i32 -128, i32 1
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%cmp2.not = icmp ugt i32 %conv1, %d.015
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br i1 %cmp2.not, label %cleanup, label %for.inc8
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for.inc8:
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%inc9 = add nuw nsw i32 %d.015, 1
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%exitcond.not = icmp eq i32 %inc9, 19
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br i1 %exitcond.not, label %cleanup, label %for.body
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cleanup:
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store i1 true, i1* @a, align 4
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ret i32 0
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}
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declare void @foo()
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