|  | ; RUN: not llc -o /dev/null %s 2>&1 | FileCheck %s | 
|  | target triple = "x86_64--" | 
|  |  | 
|  | @a = global i32 0, align 4 | 
|  |  | 
|  | ; CHECK: error: couldn't allocate input reg for constraint 'x' | 
|  | define i32 @main() { | 
|  | entry: | 
|  | %0 = load i32, ptr @a, align 4 | 
|  | %cmp = icmp ne i32 %0, 0 | 
|  | %1 = call { i32, i32 } asm "", "={ax},={dx},x,~{dirflag},~{fpsr},~{flags}"(i1 %cmp) | 
|  | %asmresult = extractvalue { i32, i32 } %1, 0 | 
|  | %asmresult1 = extractvalue { i32, i32 } %1, 1 | 
|  | store i32 %asmresult, ptr @a, align 4 | 
|  | store i32 %asmresult1, ptr @a, align 4 | 
|  | ret i32 0 | 
|  | } |