Files
clang-p2996/clang/test/CodeGenCXX/ms-inline-asm-fields.cpp
Fangrui Song 053bf8640a MS inline asm: remove obsolete code adding AOK_SizeDirective (e.g. dword ptr)
The AOK_SizeDirective part from 5b37c18129
(2014-08) seems unneeded nowadays (the root cause has likely been fixed
elsewhere). The part abuses that `call dword ptr foo` assembles the same way as `call
foo` in Intel syntax, which is going to be fixed (changed) by D149579.

The generated object files for
CodeGen/ms-inline-asm{,-functions,-variables,-static-variable}.c and
CodeGenCXX/ms-inline-asm-fields.cpp are unchanged
(-mno-incremental-linker-compatible) with just this patch. When D149579 is
subsequently applied, the FIXME part of `kptr` in
CodeGen/ms-inline-asm-functions.c will be fixed.

Differential Revision: https://reviews.llvm.org/D149695
2023-05-04 09:42:25 -07:00

57 lines
1.7 KiB
C++

// REQUIRES: x86-registered-target
// RUN: %clang_cc1 %s -triple i386-apple-darwin10 -fasm-blocks -emit-llvm -o - | FileCheck %s
struct A {
int a1;
int a2;
struct B {
int b1;
int b2;
} a3;
};
namespace asdf {
A a_global;
}
extern "C" int test_param_field(A p) {
// CHECK: define{{.*}} i32 @test_param_field(ptr noundef byval(%struct.A) align 4 %p)
// CHECK: getelementptr inbounds %struct.A, ptr %p, i32 0, i32 0
// CHECK: call i32 asm sideeffect inteldialect "mov eax, $1"
// CHECK: ret i32
__asm mov eax, p.a1
}
extern "C" int test_namespace_global() {
// CHECK: define{{.*}} i32 @test_namespace_global()
// CHECK: call i32 asm sideeffect inteldialect "mov eax, $1", "{{.*}}"(ptr elementtype(i32) getelementptr inbounds (%struct.A, ptr @_ZN4asdf8a_globalE, i32 0, i32 2, i32 1))
// CHECK: ret i32
__asm mov eax, asdf::a_global.a3.b2
}
template <bool Signed>
struct make_storage_type {
struct type {
struct B {
int a;
int x;
} b;
};
};
template <bool Signed>
struct msvc_dcas_x86 {
typedef typename make_storage_type<Signed>::type storage_type;
void store() __asm("PR26001") {
storage_type p;
__asm mov edx, p.b.x;
}
};
template void msvc_dcas_x86<false>::store();
// CHECK: define weak_odr void @"\01PR26001"(
// CHECK: %[[P:.*]] = alloca %"struct.make_storage_type<false>::type", align 4
// CHECK: %[[B:.*]] = getelementptr inbounds %"struct.make_storage_type<false>::type", ptr %[[P]], i32 0, i32 0
// CHECK: %[[X:.*]] = getelementptr inbounds %"struct.make_storage_type<false>::type::B", ptr %[[B]], i32 0, i32 1
// CHECK: call void asm sideeffect inteldialect "mov edx, $0", "*m,~{edx},~{dirflag},~{fpsr},~{flags}"(ptr elementtype(i32) %[[X]])