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Merge pull request #1505 from cdavis5e/msl-vertex-writes

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MSL: For 2.1+, don't disable rasterization for vertex writes.
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Hans-Kristian Arntzen 2020-10-27 12:00:42 +01:00 committed by GitHub
commit 5ae9153a78
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1 changed files with 6 additions and 3 deletions
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9
spirv_msl.cpp
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@ -1265,7 +1265,8 @@ void CompilerMSL::preprocess_op_codes()
add_pragma_line("#pragma clang diagnostic ignored \"-Wunused-variable\"");
}
// Metal vertex functions that write to resources must disable rasterization and return void.
// Before MSL 2.1 (2.2 for textures), Metal vertex functions that write to
// resources must disable rasterization and return void.
if (preproc.uses_resource_write)
is_rasterization_disabled = true;
@ -13181,7 +13182,8 @@ bool CompilerMSL::OpCodePreprocessor::handle(Op opcode, const uint32_t *args, ui
}
case OpImageWrite:
uses_resource_write = true;
if (!compiler.msl_options.supports_msl_version(2, 2))
uses_resource_write = true;
break;
case OpStore:
@ -13293,7 +13295,8 @@ void CompilerMSL::OpCodePreprocessor::check_resource_write(uint32_t var_id)
{
auto *p_var = compiler.maybe_get_backing_variable(var_id);
StorageClass sc = p_var ? p_var->storage : StorageClassMax;
if (sc == StorageClassUniform || sc == StorageClassStorageBuffer)
if (!compiler.msl_options.supports_msl_version(2, 1) &&
(sc == StorageClassUniform || sc == StorageClassStorageBuffer))
uses_resource_write = true;
}