1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287
|
// RUN: %clang_cc1 -no-opaque-pointers -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(void) {
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(void) {
__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 $0
}
// PR3373
unsigned t11(signed char input) {
unsigned output;
__asm__("xyz"
: "=a" (output)
: "0" (input));
return output;
}
// PR3373
unsigned char t12(unsigned input) {
unsigned char output;
__asm__("xyz"
: "=a" (output)
: "0" (input));
return output;
}
unsigned char t13(unsigned input) {
unsigned char output;
__asm__("xyz %1"
: "=a" (output)
: "0" (input));
return output;
}
struct large {
int x[1000];
};
unsigned long t15(int x, struct large *P) {
__asm__("xyz "
: "=r" (x)
: "m" (*P), "0" (x));
return x;
}
// bitfield destination of an asm.
struct S {
int a : 4;
};
void t14(struct S *P) {
__asm__("abc %0" : "=r"(P->a) );
}
// PR4938
int t16(void) {
int a,b;
asm ( "nop;"
:"=%c" (a)
: "r" (b)
);
return 0;
}
// PR6475
void t17(void) {
int i;
__asm__ ( "nop": "=m"(i));
// CHECK: @t17()
// CHECK: call void asm "nop", "=*m,
}
// <rdar://problem/6841383>
int t18(unsigned data) {
int a, b;
asm("xyz" :"=a"(a), "=d"(b) : "a"(data));
return a + b;
// CHECK: t18(i32
// CHECK: = call {{.*}}asm "xyz"
// CHECK-NEXT: extractvalue
// CHECK-NEXT: extractvalue
}
// PR6780
int t19(unsigned data) {
int a, b;
asm("x{abc|def|ghi}z" :"=r"(a): "r"(data));
return a + b;
// CHECK: t19(i32
// CHECK: = call {{.*}}asm "x$(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]* elementtype([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,!i,!i,~{dirflag},~{fpsr},~{flags}"(i32 %0) #1
// CHECK-NEXT: to label %asm.fallthrough [label %label_true, label %loop]
return 0;
loop:
return 0;
label_true:
return 1;
}
void *t33(void *ptr)
{
void *ret;
asm ("lea %1, %0" : "=r" (ret) : "p" (ptr));
return ret;
// CHECK: @t33
// CHECK: %1 = call i8* asm "lea $1, $0", "=r,p,~{dirflag},~{fpsr},~{flags}"(i8* %0)
}
|