// 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"); }