File: ms-inline-asm-64.c

package info (click to toggle)
llvm-toolchain-3.7 1%3A3.7.1-5
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 345,556 kB
  • ctags: 362,199
  • sloc: cpp: 2,156,381; ansic: 458,339; objc: 91,547; python: 89,988; asm: 86,305; sh: 21,479; makefile: 6,853; perl: 5,601; ml: 5,458; pascal: 3,933; lisp: 2,429; xml: 686; cs: 239; php: 202; csh: 117
file content (48 lines) | stat: -rw-r--r-- 1,298 bytes parent folder | download | duplicates (8)
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
// REQUIRES: x86-registered-target
// RUN: %clang_cc1 %s -triple x86_64-apple-darwin10 -fasm-blocks -emit-llvm -o - | FileCheck %s

void t1() {
  int var = 10;
  __asm mov rax, offset var ; rax = address of myvar
// CHECK: t1
// CHECK: call void asm sideeffect inteldialect "mov rax, $0", "r,~{rax},~{dirflag},~{fpsr},~{flags}"(i32* %{{.*}})
}

void t2() {
  int var = 10;
  __asm mov [eax], offset var
// CHECK: t2
// CHECK: call void asm sideeffect inteldialect "mov [eax], $0", "r,~{dirflag},~{fpsr},~{flags}"(i32* %{{.*}})
}

struct t3_type { int a, b; };

int t3() {
  struct t3_type foo;
  foo.a = 1;
  foo.b = 2;
  __asm {
     lea ebx, foo
     mov eax, [ebx].0
     mov [ebx].4, ecx
  }
  return foo.b;
// CHECK: t3
// CHECK: call void asm sideeffect inteldialect "lea ebx, qword ptr $0\0A\09mov eax, [ebx].0\0A\09mov [ebx].4, ecx", "*m,~{eax},~{ebx},~{dirflag},~{fpsr},~{flags}"(%struct.t3_type* %{{.*}})
}

int t4() {
  struct t3_type foo;
  foo.a = 1;
  foo.b = 2;
  __asm {
     lea ebx, foo
     {
       mov eax, [ebx].foo.a
     }
     mov [ebx].foo.b, ecx
  }
  return foo.b;
// CHECK: t4
// CHECK: call void asm sideeffect inteldialect "lea ebx, qword ptr $0\0A\09mov eax, [ebx].0\0A\09mov [ebx].4, ecx", "*m,~{eax},~{ebx},~{dirflag},~{fpsr},~{flags}"(%struct.t3_type* %{{.*}})
}