a625bc60e2
This is an alternative to https://github.com/llvm/llvm-project/pull/122103 In SPIR-V, private global variables have the Private storage class. This PR adds a new address space which allows frontend to emit variable with this storage class when targeting this backend. This is covered in this proposal: llvm/wg-hlsl@4c9e11a This PR will cause addrspacecast to show up in several cases, like class member functions or assignment. Those will have to be handled in the backend later on, particularly to fixup pointer storage classes in some functions. Before this change, global variable were emitted with the 'Function' storage class, which was wrong.
19 lines
740 B
HLSL
19 lines
740 B
HLSL
// RUN: %clang_cc1 -std=hlsl2021 -finclude-default-header -x hlsl -triple \
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// RUN: spirv-unknown-vulkan1.3-library %s \
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// RUN: -emit-llvm -disable-llvm-passes -o - | FileCheck %s --check-prefix=SPIRV
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// RUN: %clang_cc1 -std=hlsl2021 -finclude-default-header -x hlsl -triple \
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// RUN: dxil-pc-shadermodel6.3-library %s \
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// RUN: -emit-llvm -disable-llvm-passes -o - | FileCheck %s --check-prefix=DXIL
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// DXIL: @_ZL1g = internal global float 0.000000e+00, align 4
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// SPIRV: @_ZL1g = internal addrspace(10) global float 0.000000e+00, align 4
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static float g = 0;
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[numthreads(8,8,1)]
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void main() {
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// DXIL: {{.*}} = load float, ptr @_ZL1g, align 4
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// SPIRV: {{.*}} = load float, ptr addrspace(10) @_ZL1g, align 4
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float l = g;
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}
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