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// RUN: clang-cc -triple i386-unknown-unknown -emit-llvm %s -o %t &&
void t1(int len) {
__asm__ volatile("" : "=&r"(len), "+&r"(len));
}
void t2(unsigned long long t) {
__asm__ volatile("" : "+m"(t));
}
void t3(unsigned char *src, unsigned long long temp) {
__asm__ volatile("" : "+m"(temp), "+r"(src));
}
void t4() {
unsigned long long a;
struct reg { unsigned long long a, b; } b;
__asm__ volatile ("":: "m"(a), "m"(b));
}
// PR3417
void t5(int i) {
asm("nop" : "=r"(i) : "0"(t5));
}
// PR3641
void t6(void) {
__asm__ volatile("" : : "i" (t6));
}
// RUN: grep "T7 NAMED: \$1" %t &&
void t7(int a) {
__asm__ volatile("T7 NAMED: %[input]" : "+r"(a): [input] "i" (4));
}
// RUN: grep "T8 NAMED MODIFIER: \${0:c}" %t
void t8() {
__asm__ volatile("T8 NAMED MODIFIER: %c[input]" :: [input] "i" (4));
}
// PR3682
unsigned t9(unsigned int a) {
asm("bswap %0 %1" : "+r" (a));
return a;
}
// PR3908
// RUN: grep "PR3908 \$1 \$3 \$2 \$0" %t
void t10(int r) {
__asm__("PR3908 %[lf] %[xx] %[li] %[r]" : [r] "+r" (r) : [lf] "mx" (0), [li] "mr" (0), [xx] "x" ((double)(0)));
}
// PR3373
unsigned t11(signed char input) {
unsigned output;
__asm__("xyz"
: "=a" (output)
: "0" (input));
return output;
}
// PR3373
unsigned char t12(unsigned input) {
unsigned char output;
__asm__("xyz"
: "=a" (output)
: "0" (input));
return output;
}
unsigned char t13(unsigned input) {
unsigned char output;
__asm__("xyz %1"
: "=a" (output)
: "0" (input));
return output;
}
struct large {
int x[1000];
};
unsigned long t15(int x, struct large *P) {
__asm__("xyz "
: "=r" (x)
: "m" (*P), "0" (x));
return x;
}
// bitfield destination of an asm.
struct S {
int a : 4;
};
void t14(struct S *P) {
__asm__("abc %0" : "=r"(P->a) );
}
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