7dbfa7b981
Adds `@_init_resource_bindings()` function to module initialization that includes `handle.fromBinding` intrinsic calls for simple resource declarations. Arrays of resources or resources inside user defined types are not supported yet. While this unblocks our progress on [Compile a runnable shader from clang](https://github.com/llvm/wg-hlsl/issues/7) milestone, this is probably not the way we would like to handle resource binding initialization going forward. Ideally, it should be done via the resource class constructors in order to support dynamic resource binding or unbounded arrays if resources. Depends on PRs #110327 and #111203. Part 1 of #105076
26 lines
1.6 KiB
HLSL
26 lines
1.6 KiB
HLSL
// RUN: %clang_cc1 -triple dxil-pc-shadermodel6.3-library -x hlsl -emit-llvm -disable-llvm-passes -o - %s | FileCheck %s --check-prefixes=CHECK,CHECK-DXIL
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// FIXME: SPIR-V codegen of llvm.spv.handle.fromBinding is not yet implemented
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// RUN-DISABLED: %clang_cc1 -triple spirv-vulkan-library -x hlsl -emit-llvm -disable-llvm-passes -o - %s | FileCheck %s --check-prefixes=CHECK,CHECK-SPIRV
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// NOTE: SPIRV codegen for resource types is not yet implemented
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RWBuffer<float> Buf : register(u5, space3);
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// CHECK: %"class.hlsl::RWBuffer" = type { target("dx.TypedBuffer", float, 1, 0, 0), float }
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// CHECK: @Buf = global %"class.hlsl::RWBuffer" zeroinitializer, align 4
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// CHECK: define linkonce_odr void @_ZN4hlsl8RWBufferIfEC2Ev(ptr noundef nonnull align 4 dereferenceable(8) %this)
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// CHECK-NEXT: entry:
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// CHECK: define internal void @_GLOBAL__sub_I_RWBuffer_constructor.hlsl()
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// CHECK-NEXT: entry:
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// CHECK-NEXT: call void @__cxx_global_var_init()
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// CHECK-NEXT: call void @_init_resource_bindings()
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// CHECK: define internal void @_init_resource_bindings() {
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// CHECK-NEXT: entry:
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// CHECK-DXIL-NEXT: %Buf_h = call target("dx.TypedBuffer", float, 1, 0, 0) @llvm.dx.handle.fromBinding.tdx.TypedBuffer_f32_1_0_0t(i32 3, i32 5, i32 1, i32 0, i1 false)
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// CHECK-DXIL-NEXT: store target("dx.TypedBuffer", float, 1, 0, 0) %Buf_h, ptr @Buf, align 4
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// CHECK-SPIRV-NEXT: %Buf_h = call target("dx.TypedBuffer", float, 1, 0, 0) @llvm.spv.handle.fromBinding.tdx.TypedBuffer_f32_1_0_0t(i32 3, i32 5, i32 1, i32 0, i1 false)
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// CHECK-SPIRV-NEXT: store target("dx.TypedBuffer", float, 1, 0, 0) %Buf_h, ptr @Buf, align 4
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