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| // RUN: %clang_cc1 -triple i386-unknown-unknown -emit-llvm %s -o - | FileCheck %s
// PR10415
__asm__ ("foo1");
__asm__ ("foo2");
__asm__ ("foo3");
// CHECK: module asm "foo1"
// CHECK-NEXT: module asm "foo2"
// CHECK-NEXT: module asm "foo3"
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));
}
void t7(int a) {
__asm__ volatile("T7 NAMED: %[input]" : "+r"(a): [input] "i" (4));
// CHECK: @t7(i32
// CHECK: T7 NAMED: $1
}
void t8() {
__asm__ volatile("T8 NAMED MODIFIER: %c[input]" :: [input] "i" (4));
// CHECK: @t8()
// CHECK: T8 NAMED MODIFIER: ${0:c}
}
// PR3682
unsigned t9(unsigned int a) {
asm("bswap %0 %1" : "+r" (a));
return a;
}
// PR3908
void t10(int r) {
__asm__("PR3908 %[lf] %[xx] %[li] %[r]" : [r] "+r" (r) : [lf] "mx" (0), [li] "mr" (0), [xx] "x" ((double)(0)));
// CHECK: @t10(
// CHECK:PR3908 $1 $3 $2 $0
}
// PR3373
unsigned t11(signed char input) {
unsigned output;
__asm__("xyz"
: "=a" (output)
: "0" (input));
return output;
}
// PR3373
unsigned char t12(unsigned input) {
unsigned char output;
__asm__("xyz"
: "=a" (output)
: "0" (input));
return output;
}
unsigned char t13(unsigned input) {
unsigned char output;
__asm__("xyz %1"
: "=a" (output)
: "0" (input));
return output;
}
struct large {
int x[1000];
};
unsigned long t15(int x, struct large *P) {
__asm__("xyz "
: "=r" (x)
: "m" (*P), "0" (x));
return x;
}
// bitfield destination of an asm.
struct S {
int a : 4;
};
void t14(struct S *P) {
__asm__("abc %0" : "=r"(P->a) );
}
// PR4938
int t16() {
int a,b;
asm ( "nop;"
:"=%c" (a)
: "r" (b)
);
return 0;
}
// PR6475
void t17() {
int i;
__asm__ ( "nop": "=m"(i));
// CHECK: @t17()
// CHECK: call void asm "nop", "=*m,
}
// <rdar://problem/6841383>
int t18(unsigned data) {
int a, b;
asm("xyz" :"=a"(a), "=d"(b) : "a"(data));
return a + b;
// CHECK: t18(i32
// CHECK: = call {{.*}}asm "xyz"
// CHECK-NEXT: extractvalue
// CHECK-NEXT: extractvalue
}
// PR6780
int t19(unsigned data) {
int a, b;
asm("x{abc|def|ghi}z" :"=r"(a): "r"(data));
return a + b;
// CHECK: t19(i32
// CHECK: = call {{.*}}asm "x$(abc$|def$|ghi$)z"
}
// PR6845 - Mismatching source/dest fp types.
double t20(double x) {
register long double result;
__asm __volatile ("frndint" : "=t" (result) : "0" (x));
return result;
// CHECK: @t20
// CHECK: fpext double {{.*}} to x86_fp80
// CHECK-NEXT: call x86_fp80 asm sideeffect "frndint"
// CHECK: fptrunc x86_fp80 {{.*}} to double
}
float t21(long double x) {
register float result;
__asm __volatile ("frndint" : "=t" (result) : "0" (x));
return result;
// CHECK: @t21
// CHECK: call x86_fp80 asm sideeffect "frndint"
// CHECK-NEXT: fptrunc x86_fp80 {{.*}} to float
}
// <rdar://problem/8348447> - accept 'l' constraint
unsigned char t22(unsigned char a, unsigned char b) {
unsigned int la = a;
unsigned int lb = b;
unsigned int bigres;
unsigned char res;
__asm__ ("0:\n1:\n" : [bigres] "=la"(bigres) : [la] "0"(la), [lb] "c"(lb) :
"edx", "cc");
res = bigres;
return res;
}
// <rdar://problem/8348447> - accept 'l' constraint
unsigned char t23(unsigned char a, unsigned char b) {
unsigned int la = a;
unsigned int lb = b;
unsigned char res;
__asm__ ("0:\n1:\n" : [res] "=la"(res) : [la] "0"(la), [lb] "c"(lb) :
"edx", "cc");
return res;
}
void *t24(char c) {
void *addr;
// CHECK: @t24
// CHECK: zext i8 {{.*}} to i32
// CHECK-NEXT: call i8* asm "foobar"
__asm__ ("foobar" : "=a" (addr) : "0" (c));
return addr;
}
// PR10299 - fpsr, fpcr
void t25(void)
{
__asm__ __volatile__( \
"finit" \
: \
: \
:"st","st(1)","st(2)","st(3)", \
"st(4)","st(5)","st(6)","st(7)", \
"fpsr","fpcr" \
);
}
// rdar://10510405 - AVX registers
typedef long long __m256i __attribute__((__vector_size__(32)));
void t26 (__m256i *p) {
__asm__ volatile("vmovaps %0, %%ymm0" :: "m" (*(__m256i*)p) : "ymm0");
}
// Check to make sure the inline asm non-standard dialect attribute _not_ is
// emitted.
void t27(void) {
asm volatile("nop");
// CHECK: @t27
// CHECK: call void asm sideeffect "nop"
// CHECK-NOT: ia_nsdialect
// CHECK: ret void
}
// Check handling of '*' and '#' constraint modifiers.
void t28(void)
{
asm volatile ("/* %0 */" : : "i#*X,*r" (1));
// CHECK: @t28
// CHECK: call void asm sideeffect "/* $0 */", "i|r,~{dirflag},~{fpsr},~{flags}"(i32 1)
}
static unsigned t29_var[1];
void t29(void) {
asm volatile("movl %%eax, %0"
:
: "m"(t29_var));
// CHECK: @t29
// CHECK: call void asm sideeffect "movl %eax, $0", "*m,~{dirflag},~{fpsr},~{flags}"([1 x i32]* @t29_var)
}
void t30(int len) {
__asm__ volatile(""
: "+&&rm"(len));
// CHECK: @t30
// CHECK: call void asm sideeffect "", "=*&rm,0,~{dirflag},~{fpsr},~{flags}"
}
void t31(int len) {
__asm__ volatile(""
: "+%%rm"(len), "+rm"(len));
// CHECK: @t31
// CHECK: call void asm sideeffect "", "=*%rm,=*rm,0,1,~{dirflag},~{fpsr},~{flags}"
}
// CHECK: @t32
int t32(int cond)
{
asm goto("testl %0, %0; jne %l1;" :: "r"(cond)::label_true, loop);
// CHECK: callbr void asm sideeffect "testl $0, $0; jne ${1:l};", "r,X,X,~{dirflag},~{fpsr},~{flags}"(i32 %0, i8* blockaddress(@t32, %label_true), i8* blockaddress(@t32, %loop)) #1
return 0;
loop:
return 0;
label_true:
return 1;
}
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