xref: /llvm-project/llvm/test/CodeGen/X86/address-type-promotion-constantexpr.ll (revision deab451e7a7f2dff42097049274637052c87eabd)
1; RUN: llc < %s -mtriple=x86_64-pc-linux
2
3; PR20314 is a crashing bug. This program does nothing with the load, so just check that the return is 0.
4
5@c = common global [2 x i32] zeroinitializer, align 4
6@a = common global i32 0, align 4
7@b = internal unnamed_addr constant [2 x i8] c"\01\00", align 1
8
9; CHECK-LABEL: main
10; CHECK: xor %eax, %eax
11define i32 @main() {
12entry:
13  %cmp = icmp eq ptr getelementptr inbounds ([2 x i32], ptr @c, i64 0, i64 1), @a
14  %ext = zext i1 %cmp to i8
15  %or = or i8 %ext, 1
16  %sext = sext i8 %or to i64
17  %gep = getelementptr [2 x i8], ptr @b, i64 0, i64 %sext
18  %foo = load i8, ptr %gep, align 1
19  ret i32 0
20}
21
22