| Bill Wendling | ce29291 | 2019-08-06 22:41:22 +0000 | [diff] [blame^] | 1 | // RUN: %clang_cc1 -triple x86_64-unknown-unknown -S -O2 -o - %s | FileCheck %s |
| 2 | |
| 3 | // CHECK-LABEL: f: |
| 4 | // CHECK: movl $1, %eax |
| 5 | // CHECK-NEXT: #APP |
| 6 | // CHECK-NEXT: outl %eax, $1 |
| 7 | // CHECK-NEXT: #NO_APP |
| 8 | |
| 9 | static inline void pr41027(unsigned a, unsigned b) { |
| 10 | if (__builtin_constant_p(a)) { |
| 11 | __asm__ volatile("outl %0,%w1" : : "a"(b), "n"(a)); |
| 12 | } else { |
| 13 | __asm__ volatile("outl %0,%w1" : : "a"(b), "d"(a)); |
| 14 | } |
| 15 | } |
| 16 | |
| 17 | void f(unsigned port) { |
| 18 | pr41027(1, 1); |
| 19 | } |