b3d99ac2cd
Use the DataLayout-aware TargetFolder instead of ConstantFolder in Clang's CGBuilder. The primary impact of this change is that GEP constant expressions are now emitted in canonical `getelementptr i8` form. This is in preparation for the migration to ptradd, which requires this form. Part of the test updates were performed by Claude Code and reviewed by me.
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(ptr noundef byval(%struct.A) align 4 %p)
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// CHECK: getelementptr inbounds nuw %struct.A, ptr %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", "{{.*}}"(ptr elementtype(i32) getelementptr inbounds nuw (i8, ptr @_ZN4asdf8a_globalE, i32 12))
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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 nuw %"struct.make_storage_type<false>::type", ptr %[[P]], i32 0, i32 0
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// CHECK: %[[X:.*]] = getelementptr inbounds nuw %"struct.make_storage_type<false>::type::B", ptr %[[B]], i32 0, i32 1
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// CHECK: call void asm sideeffect inteldialect "mov edx, $0", "*m,~{edx},~{dirflag},~{fpsr},~{flags}"(ptr elementtype(i32) %[[X]])
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