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