ms-inline-asm-64.c
1.78 KB
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// 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
// CHECK-SAME: mov rax, $0
// CHECK-SAME: "r,~{rax},~{dirflag},~{fpsr},~{flags}"(i32* %{{.*}})
}
void t2() {
int var = 10;
__asm mov qword ptr [eax], offset var
// CHECK: t2
// CHECK: call void asm sideeffect inteldialect
// CHECK-SAME: mov qword ptr [eax], $0
// CHECK-SAME: "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
// CHECK-SAME: lea ebx, $0
// CHECK-SAME: mov eax, [ebx]
// CHECK-SAME: mov [ebx + $$4], ecx
// CHECK-SAME: "*m,~{eax},~{ebx},~{dirflag},~{fpsr},~{flags}"(%struct.t3_type* %{{.*}})
}
int t4() {
struct t3_type foo;
foo.a = 1;
foo.b = 2;
__asm {
lea ebx, foo
{
mov eax, [ebx].foo.a
}
mov [ebx].foo.b, ecx
}
return foo.b;
// CHECK: t4
// CHECK: call void asm sideeffect inteldialect
// CHECK-SAME: lea ebx, $0
// CHECK-SAME: mov eax, [ebx]
// CHECK-SAME: mov [ebx + $$4], ecx
// CHECK-SAME: "*m,~{eax},~{ebx},~{dirflag},~{fpsr},~{flags}"(%struct.t3_type* %{{.*}})
}
void bar() {}
void t5() {
__asm {
call bar
jmp bar
}
// CHECK: t5
// CHECK: call void asm sideeffect inteldialect
// CHECK-SAME: call qword ptr ${0:P}
// CHECK-SAME: jmp qword ptr ${1:P}
// CHECK-SAME: "*m,*m,~{dirflag},~{fpsr},~{flags}"(void (...)* bitcast (void ()* @bar to void (...)*), void (...)* bitcast (void ()* @bar to void (...)*))
}