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radeonsi: implement indirect adressing of constants

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Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
This commit is contained in:
Christian König
2013-03-07 11:58:56 +01:00
parent f5298b0a65
commit 5e616cf2c5
1 changed files with 8 additions and 6 deletions
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src/gallium/drivers/radeonsi/radeonsi_shader.c
+8 -6
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@@ -33,6 +33,7 @@
#include "gallivm/lp_bld_intr.h"
#include "gallivm/lp_bld_logic.h"
#include "gallivm/lp_bld_tgsi.h"
#include "gallivm/lp_bld_arit.h"
#include "radeon_llvm.h"
#include "radeon_llvm_emit.h"
#include "tgsi/tgsi_info.h"
@@ -372,13 +373,14 @@ static LLVMValueRef fetch_constant(
ptr = LLVMGetParam(si_shader_ctx->radeon_bld.main_fn, SI_PARAM_CONST);
args[0] = build_indexed_load(base->gallivm, ptr, bld_base->uint_bld.zero);
/* currently not supported */
args[1] = lp_build_const_int32(base->gallivm, (reg->Register.Index * 4 + swizzle) * 4);
if (reg->Register.Indirect) {
assert(0);
result = lp_build_const_int32(base->gallivm, 0);
return bitcast(bld_base, type, result);
} else
args[1] = lp_build_const_int32(base->gallivm, (reg->Register.Index * 4 + swizzle) * 4);
const struct tgsi_ind_register *ireg = &reg->Indirect;
LLVMValueRef addr = si_shader_ctx->radeon_bld.soa.addr[ireg->Index][ireg->Swizzle];
LLVMValueRef idx = LLVMBuildLoad(base->gallivm->builder, addr, "load addr reg");
idx = lp_build_mul_imm(&bld_base->uint_bld, idx, 16);
args[1] = lp_build_add(&bld_base->uint_bld, idx, args[1]);
}
result = build_intrinsic(base->gallivm->builder, "llvm.SI.load.const", base->elem_type,
args, 2, LLVMReadOnlyAttribute | LLVMNoUnwindAttribute);