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radeonsi: Don't use global variables for tess lds

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We were allocating global variables for the maximum LDS size
which made the compiler think we were using all of LDS, which
isn't the case.

Reviewed-By: Edward O'Callaghan <funfunctor@folklore1984.net>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Tom Stellard
2016-08-26 19:49:13 +00:00
parent f48ccb8c07
commit 63ed11cde9
1 changed files with 6 additions and 9 deletions
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src/gallium/drivers/radeonsi/si_shader.c
+6 -9
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@@ -5413,16 +5413,13 @@ static unsigned llvm_get_type_size(LLVMTypeRef type)
static void declare_tess_lds(struct si_shader_context *ctx)
{
struct gallivm_state *gallivm = &ctx->radeon_bld.gallivm;
LLVMTypeRef i32 = ctx->radeon_bld.soa.bld_base.uint_bld.elem_type;
unsigned lds_size = ctx->screen->b.chip_class >= CIK ? 65536 : 32768;
struct lp_build_tgsi_context *bld_base = &ctx->radeon_bld.soa.bld_base;
struct lp_build_context *uint = &bld_base->uint_bld;
/* The actual size is computed outside of the shader to reduce
* the number of shader variants. */
ctx->lds =
LLVMAddGlobalInAddressSpace(gallivm->module,
LLVMArrayType(i32, lds_size / 4),
"tess_lds",
LOCAL_ADDR_SPACE);
unsigned lds_size = ctx->screen->b.chip_class >= CIK ? 65536 : 32768;
ctx->lds = LLVMBuildIntToPtr(gallivm->builder, uint->zero,
LLVMPointerType(LLVMArrayType(ctx->i32, lds_size / 4), LOCAL_ADDR_SPACE),
"tess_lds");
}
static void create_function(struct si_shader_context *ctx)