1 ; RUN: opt < %s -passes='globalopt,function(instcombine,loop-mssa(loop-rotate,licm),instcombine,loop(indvars,loop-deletion)),constmerge' -S | FileCheck %s
2 ; PR11882: ComputeLoadConstantCompareExitLimit crash.
4 ; for.body is deleted leaving a loop-invariant load.
6 target datalayout = "e-p:64:64:64-n32:64"
8 @func_21_l_773 = external global i32, align 4
9 @g_814 = external global i32, align 4
10 @g_244 = internal global [1 x [0 x i32]] zeroinitializer, align 4
12 define void @func_21() nounwind uwtable ssp {
16 lbl_818: ; preds = %for.end, %entry
17 call void (...) @func_27()
18 store i32 0, ptr @g_814, align 4
21 for.cond: ; preds = %for.body, %lbl_818
22 %0 = load i32, ptr @g_814, align 4
23 %cmp = icmp sle i32 %0, 0
24 br i1 %cmp, label %for.body, label %for.end
26 for.body: ; preds = %for.cond
27 %idxprom = sext i32 %0 to i64
28 %arrayidx = getelementptr inbounds [0 x i32], ptr @g_244, i32 0, i64 %idxprom
29 %1 = load i32, ptr %arrayidx, align 1
30 store i32 %1, ptr @func_21_l_773, align 4
31 store i32 1, ptr @g_814, align 4
34 for.end: ; preds = %for.cond
35 %2 = load i32, ptr @func_21_l_773, align 4
36 %tobool = icmp ne i32 %2, 0
37 br i1 %tobool, label %lbl_818, label %if.end
39 if.end: ; preds = %for.end
43 declare void @func_27(...)