1 ; RUN: llc -mtriple=s390x-linux-gnu -mcpu=zEC12 < %s | FileCheck %s
3 ; Check that DAGCombiner doesn't cause a crash by eventually producing a
4 ; PCREL_OFFSET node with a freeze operand.
6 @a = dso_local global [6 x [6 x [3 x i8]]] zeroinitializer, align 2
7 @b = dso_local local_unnamed_addr global i32 0, align 4
9 define void @fun(i8 noundef zeroext %g) {
12 %agg.tmp.ensured.sroa.0 = alloca i8, align 2
13 %conv = zext i8 %g to i64
14 %0 = inttoptr i64 %conv to ptr
15 %.fr = freeze ptr getelementptr inbounds ([6 x [6 x [3 x i8]]], ptr @a, i64 0, i64 1, i64 2, i64 1)
16 %cmp = icmp eq ptr %.fr, %0
17 %1 = load i8, ptr getelementptr inbounds ([6 x [6 x [3 x i8]]], ptr @a, i64 0, i64 5, i64 4, i64 2), align 2
18 %conv2 = zext i8 %1 to i32
19 br i1 %cmp, label %for.cond.us, label %for.cond
21 for.cond.us: ; preds = %entry, %for.cond.us
22 store i32 %conv2, ptr @b, align 4
25 for.cond: ; preds = %entry, %for.cond
26 store i32 0, ptr @b, align 4