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c46827c7ed
LLVM IR recently added a Type parameter to the byval Attribute, so that when pointers become opaque and no longer have an element type the information will still be present in IR. For now the Type parameter is optional (which is why Clang didn't need this change at the time), but it will become mandatory soon. llvm-svn: 362652
57 lines
1.7 KiB
C++
57 lines
1.7 KiB
C++
// REQUIRES: x86-registered-target
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// RUN: %clang_cc1 %s -triple i386-apple-darwin10 -fasm-blocks -emit-llvm -o - | FileCheck %s
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struct A {
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int a1;
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int a2;
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struct B {
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int b1;
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int b2;
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} a3;
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};
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namespace asdf {
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A a_global;
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}
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extern "C" int test_param_field(A p) {
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// CHECK: define i32 @test_param_field(%struct.A* byval(%struct.A) align 4 %p)
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// CHECK: getelementptr inbounds %struct.A, %struct.A* %p, i32 0, i32 0
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// CHECK: call i32 asm sideeffect inteldialect "mov eax, $1"
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// CHECK: ret i32
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__asm mov eax, p.a1
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}
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extern "C" int test_namespace_global() {
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// CHECK: define i32 @test_namespace_global()
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// CHECK: call i32 asm sideeffect inteldialect "mov eax, $1", "{{.*}}"(i32* getelementptr inbounds (%struct.A, %struct.A* @_ZN4asdf8a_globalE, i32 0, i32 2, i32 1))
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// CHECK: ret i32
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__asm mov eax, asdf::a_global.a3.b2
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}
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template <bool Signed>
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struct make_storage_type {
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struct type {
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struct B {
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int a;
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int x;
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} b;
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};
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};
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template <bool Signed>
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struct msvc_dcas_x86 {
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typedef typename make_storage_type<Signed>::type storage_type;
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void store() __asm("PR26001") {
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storage_type p;
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__asm mov edx, p.b.x;
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}
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};
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template void msvc_dcas_x86<false>::store();
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// CHECK: define weak_odr void @"\01PR26001"(
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// CHECK: %[[P:.*]] = alloca %"struct.make_storage_type<false>::type", align 4
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// CHECK: %[[B:.*]] = getelementptr inbounds %"struct.make_storage_type<false>::type", %"struct.make_storage_type<false>::type"* %[[P]], i32 0, i32 0
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// CHECK: %[[X:.*]] = getelementptr inbounds %"struct.make_storage_type<false>::type::B", %"struct.make_storage_type<false>::type::B"* %[[B]], i32 0, i32 1
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// CHECK: call void asm sideeffect inteldialect "mov edx, dword ptr $0", "*m,~{edx},~{dirflag},~{fpsr},~{flags}"(i32* %[[X]])
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