clang/test/CodeGen/ms-inline-asm-64.c

   1 // REQUIRES: x86-registered-target
   2 // RUN: %clang_cc1 %s -triple x86_64-apple-darwin10 -Wno-strict-prototypes -fasm-blocks -emit-llvm -o - | FileCheck %s
   3
   4 void t1(void) {
   5   int var = 10;
   6   __asm mov rax, offset var ; rax = address of myvar
   7 // CHECK: t1
   8 // CHECK: call void asm sideeffect inteldialect
   9 // CHECK-SAME: mov rax, $0
  10 // CHECK-SAME: "r,~{rax},~{dirflag},~{fpsr},~{flags}"(ptr %{{.*}})
  11 }
  12
  13 void t2(void) {
  14   int var = 10;
  15   __asm mov qword ptr [eax], offset var
  16 // CHECK: t2
  17 // CHECK: call void asm sideeffect inteldialect
  18 // CHECK-SAME: mov qword ptr [eax], $0
  19 // CHECK-SAME: "r,~{dirflag},~{fpsr},~{flags}"(ptr %{{.*}})
  20 }
  21
  22 struct t3_type { int a, b; };
  23
  24 int t3(void) {
  25   struct t3_type foo;
  26   foo.a = 1;
  27   foo.b = 2;
  28   __asm {
  29      lea ebx, foo
  30      mov eax, [ebx].0
  31      mov [ebx].4, ecx
  32   }
  33   return foo.b;
  34 // CHECK: t3
  35 // CHECK: call void asm sideeffect inteldialect
  36 // CHECK-SAME: lea ebx, $0
  37 // CHECK-SAME: mov eax, [ebx]
  38 // CHECK-SAME: mov [ebx + $$4], ecx
  39 // CHECK-SAME: "*m,~{eax},~{ebx},~{dirflag},~{fpsr},~{flags}"(ptr elementtype(%struct.t3_type) %{{.*}})
  40 }
  41
  42 int t4(void) {
  43   struct t3_type foo;
  44   foo.a = 1;
  45   foo.b = 2;
  46   __asm {
  47      lea ebx, foo
  48      {
  49        mov eax, [ebx].foo.a
  50      }
  51      mov [ebx].foo.b, ecx
  52   }
  53   return foo.b;
  54 // CHECK: t4
  55 // CHECK: call void asm sideeffect inteldialect
  56 // CHECK-SAME: lea ebx, $0
  57 // CHECK-SAME: mov eax, [ebx]
  58 // CHECK-SAME: mov [ebx + $$4], ecx
  59 // CHECK-SAME: "*m,~{eax},~{ebx},~{dirflag},~{fpsr},~{flags}"(ptr elementtype(%struct.t3_type) %{{.*}})
  60 }
  61
  62 void bar() {}
  63
  64 void t5(void) {
  65   __asm {
  66     call bar
  67     jmp bar
  68   }
  69   // CHECK: t5
  70   // CHECK: call void asm sideeffect inteldialect
  71   // CHECK-SAME: call qword ptr ${0:P}
  72   // CHECK-SAME: jmp qword ptr ${1:P}
  73   // CHECK-SAME: "*m,*m,~{dirflag},~{fpsr},~{flags}"(ptr elementtype(void (...)) @bar, ptr elementtype(void (...)) @bar)
  74 }