| // RUN: %clang_cc1 -triple spirv-unknown-vulkan-library -finclude-default-header \ |
| // RUN: -emit-llvm -disable-llvm-passes -o - %s | FileCheck %s --check-prefixes=CHECK,DEFAULT |
| // RUN: %clang_cc1 -triple spirv-unknown-vulkan-library -finclude-default-header \ |
| // RUN: -fspv-use-legacy-buffer-matrix-order -emit-llvm -disable-llvm-passes -o - %s \ |
| // RUN: | FileCheck %s --check-prefixes=CHECK,LEGACY |
| |
| // Raw buffers carry no layout information. By default, a matrix read from or |
| // written to a raw buffer is assumed to be stored in column-major order, |
| // matching the native in-register representation, so no reordering is |
| // needed. -fspv-use-legacy-buffer-matrix-order assumes the raw bytes are |
| // stored in row-major order instead, which requires transposing the loaded |
| // (or, before storing, the to-be-stored) value. |
| |
| ByteAddressBuffer Buf : register(t0); |
| RWByteAddressBuffer RWBuf : register(u0); |
| |
| export float2x3 TestLoad() { |
| return Buf.Load<float2x3>(0); |
| } |
| |
| // CHECK-LABEL: define {{.*}} <6 x float> @{{.*}}ByteAddressBuffer4LoadIu11matrix_typeILj2ELj3EfEEET_j |
| // CHECK: [[LOADED:%.*]] = load <6 x float>, ptr addrspace(11) %{{.*}} |
| // DEFAULT-NOT: call {{.*}} @llvm.matrix.transpose |
| // DEFAULT: ret <6 x float> [[LOADED]] |
| // LEGACY: [[TRANSPOSED:%.*]] = call {{.*}} <6 x float> @llvm.matrix.transpose.v6f32(<6 x float> [[LOADED]], i32 3, i32 2) |
| // LEGACY: ret <6 x float> [[TRANSPOSED]] |
| |
| export void TestStore(float2x3 M) { |
| RWBuf.Store<float2x3>(0, M); |
| } |
| |
| // CHECK-LABEL: define {{.*}} void @{{.*}}RWByteAddressBuffer5StoreIu11matrix_typeILj2ELj3EfEEEvjT_ |
| // CHECK: [[VALUE:%.*]] = load <6 x float>, ptr %Value.addr |
| // DEFAULT-NOT: call {{.*}} @llvm.matrix.transpose |
| // DEFAULT: store <6 x float> [[VALUE]], ptr addrspace(11) %{{.*}} |
| // LEGACY: [[TRANSPOSED:%.*]] = call {{.*}} <6 x float> @llvm.matrix.transpose.v6f32(<6 x float> [[VALUE]], i32 2, i32 3) |
| // LEGACY: store <6 x float> [[TRANSPOSED]], ptr addrspace(11) %{{.*}} |
