| // RUN: %clang_cc1 -triple dxil-pc-shadermodel6.3-library -emit-llvm -disable-llvm-passes -o - %s | \ |
| // RUN: llvm-cxxfilt | FileCheck %s --check-prefixes=CHECK,CHECK-DXIL |
| // FIXME: SPIR-V codegen of llvm.spv.resource.handlefrombinding and resource types is not yet implemented |
| // RUN-DISABLED: %clang_cc1 -triple spirv-vulkan-library -x hlsl -emit-llvm -disable-llvm-passes -o - %s | \ |
| // llvm-cxxfilt | FileCheck %s --check-prefixes=CHECK,CHECK-SPIRV |
| |
| // NOTE: Itanium ABI for C++ requires Clang to generate 2 constructors types to support polymorphism: |
| // - C1 - Complete object constructor - constructs the complete object, including virtual base classes. |
| // - C2 - Base object constructor - creates the object itself and initializes data members and non-virtual base classes. |
| // The constructors are distinquished by C1/C2 designators in their mangled name. |
| // https://itanium-cxx-abi.github.io/cxx-abi/abi.html#mangling-special-ctor-dtor |
| |
| // Resource with explicit binding |
| ByteAddressBuffer Buf1 : register(t1, space2); |
| |
| // Resource with implicit binding |
| RWByteAddressBuffer Buf2; |
| |
| export void foo() { |
| // Local resource declaration |
| RasterizerOrderedByteAddressBuffer Buf3; |
| } |
| |
| // CHECK: %"class.hlsl::ByteAddressBuffer" = type { target("dx.RawBuffer", i8, 0, 0) } |
| // CHECK: %"class.hlsl::RWByteAddressBuffer" = type { target("dx.RawBuffer", i8, 1, 0) } |
| // CHECK: %"class.hlsl::RasterizerOrderedByteAddressBuffer" = type { target("dx.RawBuffer", i8, 1, 1) } |
| |
| // CHECK: @Buf1 = internal global %"class.hlsl::ByteAddressBuffer" poison, align 4 |
| // CHECK: @[[Buf1Str:.*]] = private unnamed_addr constant [5 x i8] c"Buf1\00", align 1 |
| // CHECK: @Buf2 = internal global %"class.hlsl::RWByteAddressBuffer" poison, align 4 |
| // CHECK: @[[Buf2Str:.*]] = private unnamed_addr constant [5 x i8] c"Buf2\00", align 1 |
| |
| // Buf1 initialization part 1 - global init function that calls ByteAddressBuffer::__createFromBinding |
| // CHECK: define internal void @__cxx_global_var_init() |
| // CHECK-NEXT: entry: |
| // CHECK-NEXT: call void @hlsl::ByteAddressBuffer::__createFromBinding(unsigned int, unsigned int, int, unsigned int, char const*) |
| // CHECK-SAME: (ptr {{.*}} @Buf1, i32 noundef 1, i32 noundef 2, i32 noundef 1, i32 noundef 0, ptr noundef @[[Buf1Str]]) |
| |
| // Buf1 initialization part 2 - body of ByteAddressBuffer::__createFromBinding |
| // CHECK: define {{.*}} void @hlsl::ByteAddressBuffer::__createFromBinding(unsigned int, unsigned int, int, unsigned int, char const*) |
| // CHECK-SAME: (ptr {{.*}} sret(%"class.hlsl::ByteAddressBuffer") align 4 %[[RetValue1:.*]], i32 noundef %registerNo, |
| // CHECK-SAME: i32 noundef %spaceNo, i32 noundef %range, i32 noundef %index, ptr noundef %name) |
| // CHECK: %[[Tmp1:.*]] = alloca %"class.hlsl::ByteAddressBuffer", align 4 |
| // CHECK: %[[Handle1:.*]] = call target("dx.RawBuffer", i8, 0, 0) |
| // CHECK-SAME: @llvm.dx.resource.handlefrombinding.tdx.RawBuffer_i8_0_0t( |
| // CHECK: %__handle = getelementptr inbounds nuw %"class.hlsl::ByteAddressBuffer", ptr %[[Tmp1]], i32 0, i32 0 |
| // CHECK-DXIL: store target("dx.RawBuffer", i8, 0, 0) %[[Handle1]], ptr %__handle, align 4 |
| // CHECK: call void @hlsl::ByteAddressBuffer::ByteAddressBuffer(hlsl::ByteAddressBuffer const&)(ptr {{.*}} %[[RetValue1]], ptr {{.*}} %[[Tmp1]]) |
| |
| // Buf2 initialization part 1 - global init function that calls RWByteAddressBuffer::__createFromImplicitBinding |
| // CHECK: define internal void @__cxx_global_var_init.1() |
| // CHECK-NEXT: entry: |
| // CHECK-NEXT: call void @hlsl::RWByteAddressBuffer::__createFromImplicitBinding(unsigned int, unsigned int, int, unsigned int, char const*) |
| // CHECK-SAME: (ptr {{.*}} @Buf2, i32 noundef 0, i32 noundef 0, i32 noundef 1, i32 noundef 0, ptr noundef @[[Buf2Str]]) |
| |
| // Buf2 initialization part 2 - body of RWByteAddressBuffer::__createFromImplicitBinding |
| // CHECK: define hidden void @hlsl::RWByteAddressBuffer::__createFromImplicitBinding(unsigned int, unsigned int, int, unsigned int, char const*) |
| // CHECK-SAME: (ptr {{.*}} sret(%"class.hlsl::RWByteAddressBuffer") align 4 %[[RetValue2:.*]], i32 noundef %orderId, |
| // CHECK-SAME: i32 noundef %spaceNo, i32 noundef %range, i32 noundef %index, ptr noundef %name) |
| // CHECK: %[[Tmp2:.*]] = alloca %"class.hlsl::RWByteAddressBuffer", align 4 |
| // CHECK: %[[Handle2:.*]] = call target("dx.RawBuffer", i8, 1, 0) |
| // CHECK-SAME: @llvm.dx.resource.handlefromimplicitbinding.tdx.RawBuffer_i8_1_0t( |
| // CHECK: %__handle = getelementptr inbounds nuw %"class.hlsl::RWByteAddressBuffer", ptr %[[Tmp2]], i32 0, i32 0 |
| // CHECK-DXIL: store target("dx.RawBuffer", i8, 1, 0) %[[Handle2]], ptr %__handle, align 4 |
| // CHECK: call void @hlsl::RWByteAddressBuffer::RWByteAddressBuffer(hlsl::RWByteAddressBuffer const&)(ptr {{.*}} %[[RetValue2]], ptr {{.*}} %[[Tmp2]]) |
| |
| // Buf3 initialization part 1 - local variable declared in function foo() is initialized by |
| // RasterizerOrderedByteAddressBuffer C1 default constructor |
| // CHECK: define void @foo() |
| // CHECK-NEXT: entry: |
| // CHECK-NEXT: %Buf3 = alloca %"class.hlsl::RasterizerOrderedByteAddressBuffer", align 4 |
| // CHECK-NEXT: call void @hlsl::RasterizerOrderedByteAddressBuffer::RasterizerOrderedByteAddressBuffer()(ptr {{.*}} %Buf3) |
| |
| // Buf3 initialization part 2 - body of RasterizerOrderedByteAddressBuffer default C1 constructor that |
| // calls the default C2 constructor |
| // CHECK: define linkonce_odr hidden void @hlsl::RasterizerOrderedByteAddressBuffer::RasterizerOrderedByteAddressBuffer()(ptr {{.*}} %this) |
| // CHECK: call void @hlsl::RasterizerOrderedByteAddressBuffer::RasterizerOrderedByteAddressBuffer()(ptr {{.*}} %this1) |
| // CHECK-NEXT: ret void |
| |
| // Buf3 initialization part 3 - body of RasterizerOrderedByteAddressBuffer default C2 constructor that |
| // initializes handle to poison |
| // CHECK: define linkonce_odr hidden void @hlsl::RasterizerOrderedByteAddressBuffer::RasterizerOrderedByteAddressBuffer()(ptr {{.*}} %this) |
| // CHECK: %__handle = getelementptr inbounds nuw %"class.hlsl::RasterizerOrderedByteAddressBuffer", ptr %{{.*}}, i32 0, i32 0 |
| // CHECK: store target("dx.RawBuffer", i8, 1, 1) poison, ptr %__handle, align 4 |
| |
| // Module initialization |
| // CHECK: define internal void @_GLOBAL__sub_I_ByteAddressBuffers_constructors.hlsl() |
| // CHECK-NEXT: entry: |
| // CHECK-NEXT: call void @__cxx_global_var_init() |
| // CHECK-NEXT: call void @__cxx_global_var_init.1() |
