1 ; RUN: opt -loop-unswitch -enable-new-pm=0 %s -S | FileCheck %s
3 ; When hoisting simple values out from a loop, and not being able to attempt to
4 ; non-trivally unswitch the loop, due to the optsize attribute, the pass would
5 ; return an incorrect Modified status. This was caught by the pass return
6 ; status check that is hidden under EXPENSIVE_CHECKS.
9 ; CHECK-NEXT: %0 = call i32 @llvm.objectsize.i32.p0i8(i8* bitcast (%struct.anon* @b to i8*), i1 false, i1 false, i1 false)
10 ; CHECK-NEXT: %1 = icmp uge i32 %0, 1
11 ; CHECK-NEXT: br label %for.cond
13 %struct.anon = type { i16 }
15 @b = global %struct.anon zeroinitializer, align 1
17 ; Function Attrs: minsize nounwind optsize
22 for.cond: ; preds = %cont, %entry
25 for.inc: ; preds = %for.cond
26 %0 = call i32 @llvm.objectsize.i32.p0i8(i8* bitcast (%struct.anon* @b to i8*), i1 false, i1 false, i1 false)
27 %1 = icmp uge i32 %0, 1
28 br i1 %1, label %cont, label %cont
30 cont: ; preds = %for.inc
31 %2 = load i16, i16* getelementptr inbounds (%struct.anon, %struct.anon* @b, i32 0, i32 0), align 1
35 ; Function Attrs: nounwind readnone speculatable willreturn
36 declare i32 @llvm.objectsize.i32.p0i8(i8*, i1 immarg, i1 immarg, i1 immarg) #1
38 attributes #0 = { minsize nounwind optsize }
39 attributes #1 = { nounwind readnone speculatable willreturn }