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; RUN: llc < %s -mtriple=x86_64-pc-linux
; PR20314 is a crashing bug. This program does nothing with the load, so just check that the return is 0.
@c = common global [2 x i32] zeroinitializer, align 4
@a = common global i32 0, align 4
@b = internal unnamed_addr constant [2 x i8] c"\01\00", align 1
; CHECK-LABEL: main
; CHECK: xor %eax, %eax
define i32 @main() {
entry:
%cmp = icmp eq ptr getelementptr inbounds ([2 x i32], ptr @c, i64 0, i64 1), @a
%ext = zext i1 %cmp to i8
%or = or i8 %ext, 1
%sext = sext i8 %or to i64
%gep = getelementptr [2 x i8], ptr @b, i64 0, i64 %sext
%foo = load i8, ptr %gep, align 1
ret i32 0
}
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