bd92e46204
This introduces `__builtin_hlsl_resource_getpointer`, which lowers to `llvm.dx.resource.getpointer` and is used to implement indexing into resources. This will only work through the backend for typed buffers at this point, but the changes to structured buffers should be correct as far as the frontend is concerned. Note: We probably want this to return a reference in the HLSL device address space, but for now we're just using address space 0. Creating a device address space and updating this code can be done later as necessary. Fixes #95956
28 lines
960 B
HLSL
28 lines
960 B
HLSL
// RUN: %clang_cc1 -finclude-default-header -triple dxil-pc-shadermodel6.6-library %s -emit-llvm-only -disable-llvm-passes -verify
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// RWBuffer<int>
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using handle_t = __hlsl_resource_t
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[[hlsl::resource_class(UAV)]] [[hlsl::contained_type(int)]];
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void test_args(unsigned int x) {
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// expected-error@+1 {{too few arguments to function call, expected 2, have 1}}
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__builtin_hlsl_resource_getpointer(x);
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// expected-error@+1 {{too many arguments to function call, expected 2, have 3}}
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__builtin_hlsl_resource_getpointer(x, x, x);
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// expected-error@+1 {{used type 'unsigned int' where __hlsl_resource_t is required}}
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__builtin_hlsl_resource_getpointer(x, x);
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handle_t res;
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// expected-error@+1 {{passing 'const char *' to parameter of incompatible type 'unsigned int'}}
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__builtin_hlsl_resource_getpointer(res, "1");
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// no error
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__builtin_hlsl_resource_getpointer(res, 0u);
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// no error
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__builtin_hlsl_resource_getpointer(res, x);
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}
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