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radeonsi: add get_block_size() helper

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This will be reused by the nir backend in a later patch.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Timothy Arceri
2018-02-02 13:06:02 +11:00
parent e3ebffdbb0
commit f6932d1ef3
1 changed files with 27 additions and 20 deletions
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src/gallium/drivers/radeonsi/si_shader.c
+27 -20
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@@ -1874,6 +1874,32 @@ static LLVMValueRef get_sample_id(struct si_shader_context *ctx)
return unpack_param(ctx, SI_PARAM_ANCILLARY, 8, 4);
}
static LLVMValueRef get_block_size(struct ac_shader_abi *abi)
{
struct si_shader_context *ctx = si_shader_context_from_abi(abi);
LLVMValueRef values[3];
LLVMValueRef result;
unsigned i;
unsigned *properties = ctx->shader->selector->info.properties;
if (properties[TGSI_PROPERTY_CS_FIXED_BLOCK_WIDTH] != 0) {
unsigned sizes[3] = {
properties[TGSI_PROPERTY_CS_FIXED_BLOCK_WIDTH],
properties[TGSI_PROPERTY_CS_FIXED_BLOCK_HEIGHT],
properties[TGSI_PROPERTY_CS_FIXED_BLOCK_DEPTH]
};
for (i = 0; i < 3; ++i)
values[i] = LLVMConstInt(ctx->i32, sizes[i], 0);
result = lp_build_gather_values(&ctx->gallivm, values, 3);
} else {
result = LLVMGetParam(ctx->main_fn, ctx->param_block_size);
}
return result;
}
/**
* Load a dword from a constant buffer.
@@ -2124,27 +2150,8 @@ void si_load_system_value(struct si_shader_context *ctx,
break;
case TGSI_SEMANTIC_BLOCK_SIZE:
{
LLVMValueRef values[3];
unsigned i;
unsigned *properties = ctx->shader->selector->info.properties;
if (properties[TGSI_PROPERTY_CS_FIXED_BLOCK_WIDTH] != 0) {
unsigned sizes[3] = {
properties[TGSI_PROPERTY_CS_FIXED_BLOCK_WIDTH],
properties[TGSI_PROPERTY_CS_FIXED_BLOCK_HEIGHT],
properties[TGSI_PROPERTY_CS_FIXED_BLOCK_DEPTH]
};
for (i = 0; i < 3; ++i)
values[i] = LLVMConstInt(ctx->i32, sizes[i], 0);
value = lp_build_gather_values(&ctx->gallivm, values, 3);
} else {
value = LLVMGetParam(ctx->main_fn, ctx->param_block_size);
}
value = get_block_size(&ctx->abi);
break;
}
case TGSI_SEMANTIC_BLOCK_ID:
{