1; Verify that we do not crash on always-true conditions
2;
3; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 -O0
4;
5; This test was compiled using clang -O0 from the following source code:
6;
7; int test(unsigned long x)
8; {
9;   return x >= 0 && x <= 15;
10; }
11
12define signext i32 @test(i64 %x) {
13entry:
14  %x.addr = alloca i64, align 8
15  store i64 %x, i64* %x.addr, align 8
16  %0 = load i64, i64* %x.addr, align 8
17  %cmp = icmp uge i64 %0, 0
18  br i1 %cmp, label %land.rhs, label %land.end
19
20land.rhs:                                         ; preds = %entry
21  %1 = load i64, i64* %x.addr, align 8
22  %cmp1 = icmp ule i64 %1, 15
23  br label %land.end
24
25land.end:                                         ; preds = %land.rhs, %entry
26  %2 = phi i1 [ false, %entry ], [ %cmp1, %land.rhs ]
27  %land.ext = zext i1 %2 to i32
28  ret i32 %land.ext
29}
30
31