d92bac8a3e
Introduces a new address space `hlsl_constant(2)` for constant buffer declarations. This address space is applied to declarations inside `cbuffer` block. Later on, it will also be applied to `ConstantBuffer<T>` syntax and the default `$Globals` constant buffer. Clang codegen translates constant buffer declarations to global variables and loads from `hlsl_constant(2)` address space. More work coming soon will include addition of metadata that will map these globals to individual constant buffers and enable their transformation to appropriate constant buffer load intrinsics later on in an LLVM pass. Fixes #123406
23 lines
739 B
HLSL
23 lines
739 B
HLSL
// RUN: %clang_cc1 -finclude-default-header -triple dxil-pc-shadermodel6.3-library %s \
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// RUN: -emit-llvm -disable-llvm-passes -o - | FileCheck %s
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// RUN: %clang_cc1 -finclude-default-header -triple spirv-pc-vulkan-library %s \
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// RUN: -emit-llvm -disable-llvm-passes -o - | FileCheck %s
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cbuffer A {
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// CHECK: @a = external addrspace(2) externally_initialized global float, align 4
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float a;
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// CHECK: @_ZL1b = internal global float 3.000000e+00, align 4
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static float b = 3;
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float foo() { return a + b; }
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}
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// CHECK: @[[CB:.+]] = external constant { float }
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// CHECK:define {{.*}} float @_Z3foov()
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// CHECK:load float, ptr addrspace(2) @a, align 4
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// CHECK:load float, ptr @_ZL1b, align 4
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float bar() {
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return foo();
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}
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