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radeonsi: Create a helper function for computing the thread id

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Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Tom Stellard 2016-04-18 13:10:10 -04:00
parent 86cd9a134f
commit b31422d970
1 changed files with 11 additions and 6 deletions
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17
src/gallium/drivers/radeonsi/si_shader.c
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@ -1116,6 +1116,14 @@ static LLVMValueRef get_sample_id(struct radeon_llvm_context *radeon_bld)
SI_PARAM_ANCILLARY, 8, 4);
}
static LLVMValueRef get_thread_id(struct si_shader_context *ctx)
{
struct gallivm_state *gallivm = &ctx->radeon_bld.gallivm;
return lp_build_intrinsic(gallivm->builder, "llvm.SI.tid", ctx->i32,
NULL, 0, LLVMReadNoneAttribute);
}
/**
* Load a dword from a constant buffer.
*/
@ -1863,8 +1871,7 @@ static void si_llvm_emit_streamout(struct si_shader_context *ctx,
LLVMValueRef so_vtx_count =
unpack_param(ctx, ctx->param_streamout_config, 16, 7);
LLVMValueRef tid = lp_build_intrinsic(builder, "llvm.SI.tid", ctx->i32,
NULL, 0, LLVMReadNoneAttribute);
LLVMValueRef tid = get_thread_id(ctx);
/* can_emit = tid < so_vtx_count; */
LLVMValueRef can_emit =
@ -4365,8 +4372,7 @@ static void si_llvm_emit_ddxy(
unsigned mask;
indices[0] = bld_base->uint_bld.zero;
indices[1] = lp_build_intrinsic(gallivm->builder, "llvm.SI.tid", ctx->i32,
NULL, 0, LLVMReadNoneAttribute);
indices[1] = get_thread_id(ctx);
store_ptr = LLVMBuildGEP(gallivm->builder, ctx->lds,
indices, 2, "");
@ -4437,8 +4443,7 @@ static LLVMValueRef si_llvm_emit_ddxy_interp(
unsigned c;
indices[0] = bld_base->uint_bld.zero;
indices[1] = lp_build_intrinsic(gallivm->builder, "llvm.SI.tid", ctx->i32,
NULL, 0, LLVMReadNoneAttribute);
indices[1] = get_thread_id(ctx);
store_ptr = LLVMBuildGEP(gallivm->builder, ctx->lds,
indices, 2, "");