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; RUN: opt -loop-unswitch -enable-new-pm=0 %s -S | FileCheck %s
; When hoisting simple values out from a loop, and not being able to unswitch
; the loop due to the convergent call, the pass would return an incorrect
; Modified status. This was caught by the pass return status check that is
; hidden under EXPENSIVE_CHECKS.
; CHECK-LABEL: entry:
; CHECK-NEXT: %0 = call i32 @llvm.objectsize.i32.p0i8(i8* bitcast (%struct.anon* @b to i8*), i1 false, i1 false, i1 false)
; CHECK-NEXT: %1 = icmp uge i32 %0, 1
; CHECK-NEXT: br label %for.cond
%struct.anon = type { i16 }
@b = global %struct.anon zeroinitializer, align 1
; Function Attrs: nounwind
define i16 @c() #0 {
entry:
br label %for.cond
for.cond: ; preds = %cont, %entry
br label %for.inc
for.inc: ; preds = %for.cond
%0 = call i32 @llvm.objectsize.i32.p0i8(i8* bitcast (%struct.anon* @b to i8*), i1 false, i1 false, i1 false)
%1 = icmp uge i32 %0, 1
br i1 %1, label %cont, label %cont
cont: ; preds = %for.inc
call void @conv() convergent
%2 = load i16, i16* getelementptr inbounds (%struct.anon, %struct.anon* @b, i32 0, i32 0), align 1
br label %for.cond
}
; Function Attrs: nounwind readnone speculatable willreturn
declare i32 @llvm.objectsize.i32.p0i8(i8*, i1 immarg, i1 immarg, i1 immarg) #1
declare void @conv() convergent
attributes #0 = { nounwind }
attributes #1 = { nounwind readnone speculatable willreturn }
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