e564ce97b1
fixes #184877 This change was threefold. 1. copy the padded cbuffer from memory to a local alloca 2. switch to using the new `getFlattenedIndex` helpers for index generation 3. convert row major to column major indicies in codegen depending on LangOptions
38 lines
1.7 KiB
HLSL
38 lines
1.7 KiB
HLSL
// RUN: %clang_cc1 -triple dxil-pc-shadermodel6.7-library -disable-llvm-passes \
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// RUN: -emit-llvm -finclude-default-header -fmatrix-memory-layout=column-major \
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// RUN: -o - %s | FileCheck %s --check-prefixes=CHECK,COL
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// RUN: %clang_cc1 -triple dxil-pc-shadermodel6.7-library -disable-llvm-passes \
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// RUN: -emit-llvm -finclude-default-header -fmatrix-memory-layout=row-major \
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// RUN: -o - %s | FileCheck %s --check-prefixes=CHECK,ROW
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// For a float3x2 matrix (3 rows, 2 columns):
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// Column-major flat vector: [_11, _21, _31, _12, _22, _32]
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// idx: 0 1 2 3 4 5
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// Row-major flat vector: [_11, _12, _21, _22, _31, _32]
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// idx: 0 1 2 3 4 5
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// CHECK-LABEL: define {{.*}} @_Z16getScalarElementu11matrix_typeILm3ELm2EfE
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// CHECK: load <6 x float>, ptr
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// COL-NEXT: extractelement <6 x float> {{.*}}, i32 4
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// ROW-NEXT: extractelement <6 x float> {{.*}}, i32 3
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export float getScalarElement(float3x2 M) {
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return M._22;
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}
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// CHECK-LABEL: define {{.*}} @_Z18getSwizzleElementsu11matrix_typeILm3ELm2EfE
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// CHECK: load <6 x float>, ptr
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// COL-NEXT: shufflevector <6 x float> {{.*}}, <6 x float> poison, <4 x i32> <i32 0, i32 3, i32 1, i32 4>
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// ROW-NEXT: shufflevector <6 x float> {{.*}}, <6 x float> poison, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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export float4 getSwizzleElements(float3x2 M) {
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return M._11_12_21_22;
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}
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// CHECK-LABEL: define {{.*}} @_Z22getZeroBasedSwizzleEltu11matrix_typeILm3ELm2EfE
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// CHECK: load <6 x float>, ptr
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// COL-NEXT: shufflevector <6 x float> {{.*}}, <6 x float> poison, <2 x i32> <i32 1, i32 3>
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// ROW-NEXT: shufflevector <6 x float> {{.*}}, <6 x float> poison, <2 x i32> <i32 2, i32 1>
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export float2 getZeroBasedSwizzleElt(float3x2 M) {
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return M._m10_m01;
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}
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