forked from OSchip/llvm-project
21 lines
508 B
C
21 lines
508 B
C
// REQUIRES: x86-registered-target
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// RUN: %clang_cc1 -triple x86_64-unknown-unknown -S -O2 -o - %s | FileCheck %s
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// CHECK-LABEL: f:
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// CHECK: movl $1, %eax
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// CHECK-NEXT: #APP
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// CHECK-NEXT: outl %eax, $1
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// CHECK-NEXT: #NO_APP
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static inline void pr41027(unsigned a, unsigned b) {
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if (__builtin_constant_p(a)) {
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__asm__ volatile("outl %0,%w1" : : "a"(b), "n"(a));
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} else {
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__asm__ volatile("outl %0,%w1" : : "a"(b), "d"(a));
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}
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}
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void f(unsigned port) {
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pr41027(1, 1);
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}
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