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36 lines
1.0 KiB
LLVM
36 lines
1.0 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; Check that we're not crashing while looking at the recurrence variable.
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; RUN: opt -S -loop-idiom %s | FileCheck %s
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define void @tinkywinky() {
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; CHECK-LABEL: @tinkywinky(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br i1 true, label [[EXIT:%.*]], label [[PH:%.*]]
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; CHECK: ph:
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; CHECK-NEXT: [[MYPHI:%.*]] = phi i32 [ 1, [[ENTRY:%.*]] ]
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; CHECK-NEXT: br label [[IF_END:%.*]]
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; CHECK: if.end:
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; CHECK-NEXT: [[PATATINO:%.*]] = ashr i32 [[MYPHI]], undef
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; CHECK-NEXT: [[TOBOOL:%.*]] = icmp eq i32 [[PATATINO]], 0
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; CHECK-NEXT: br i1 [[TOBOOL]], label [[EXIT_LOOPEXIT:%.*]], label [[IF_END]]
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; CHECK: exit.loopexit:
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; CHECK-NEXT: br label [[EXIT]]
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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 i1 true, label %exit, label %ph
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ph:
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%myphi = phi i32 [ 1, %entry ]
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br label %if.end
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if.end:
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%patatino = ashr i32 %myphi, undef
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%tobool = icmp eq i32 %patatino, 0
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br i1 %tobool, label %exit, label %if.end
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exit:
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ret void
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}
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