[Mesa-dev] [PATCH 2/2] radv: Use new image load/store intrinsic signatures
Kai Wasserbäch
kai at dev.carbon-project.org
Thu Oct 13 17:20:30 UTC 2016
Dear Tom,
just FYI: this fails to apply on top of master
(761388a0eb586b1dcaec063ee561056ed132dc1a). git am chokes on the
visit_image_store() hunk for me. Attached is a "refreshed" version, which
applies for me. I hope I didn't butcher anything inadvertently.
Cheers,
Kai
Tom Stellard wrote on 13.10.2016 17:21:
> These were changed in LLVM r284024.
> ---
> src/amd/common/ac_nir_to_llvm.c | 131 ++++++++++++++++++++++++++++++++--------
> 1 file changed, 107 insertions(+), 24 deletions(-)
>
> diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c
> index 9c764c7..4fba7d3 100644
> --- a/src/amd/common/ac_nir_to_llvm.c
> +++ b/src/amd/common/ac_nir_to_llvm.c
> @@ -2296,13 +2296,73 @@ static LLVMValueRef get_image_coords(struct nir_to_llvm_context *ctx,
> return res;
> }
>
> +static void build_type_name_for_intr(
> + LLVMTypeRef type,
> + char *buf, unsigned bufsize)
> +{
> + LLVMTypeRef elem_type = type;
> +
> + assert(bufsize >= 8);
> +
> + if (LLVMGetTypeKind(type) == LLVMVectorTypeKind) {
> + int ret = snprintf(buf, bufsize, "v%u",
> + LLVMGetVectorSize(type));
> + if (ret < 0) {
> + char *type_name = LLVMPrintTypeToString(type);
> + fprintf(stderr, "Error building type name for: %s\n",
> + type_name);
> + return;
> + }
> + elem_type = LLVMGetElementType(type);
> + buf += ret;
> + bufsize -= ret;
> + }
> + switch (LLVMGetTypeKind(elem_type)) {
> + default: break;
> + case LLVMIntegerTypeKind:
> + snprintf(buf, bufsize, "i%d", LLVMGetIntTypeWidth(elem_type));
> + break;
> + case LLVMFloatTypeKind:
> + snprintf(buf, bufsize, "f32");
> + break;
> + case LLVMDoubleTypeKind:
> + snprintf(buf, bufsize, "f64");
> + break;
> + }
> +}
> +
> +static void get_image_intr_name(const char *base_name,
> + LLVMTypeRef data_type,
> + LLVMTypeRef coords_type,
> + LLVMTypeRef rsrc_type,
> + char *out_name, unsigned out_len)
> +{
> + char coords_type_name[8];
> +
> + build_type_name_for_intr(coords_type, coords_type_name,
> + sizeof(coords_type_name));
> +
> + if (HAVE_LLVM <= 0x0309) {
> + snprintf(out_name, out_len, "%s.%s", base_name, coords_type_name);
> + } else {
> + char data_type_name[8];
> + char rsrc_type_name[8];
> +
> + build_type_name_for_intr(data_type, data_type_name,
> + sizeof(data_type_name));
> + build_type_name_for_intr(rsrc_type, rsrc_type_name,
> + sizeof(rsrc_type_name));
> + snprintf(out_name, out_len, "%s.%s.%s.%s", base_name,
> + data_type_name, coords_type_name, rsrc_type_name);
> + }
> +}
> +
> static LLVMValueRef visit_image_load(struct nir_to_llvm_context *ctx,
> nir_intrinsic_instr *instr)
> {
> LLVMValueRef params[7];
> LLVMValueRef res;
> - char intrinsic_name[32];
> - char coords_type[8];
> + char intrinsic_name[64];
> const nir_variable *var = instr->variables[0]->var;
> const struct glsl_type *type = var->type;
> if(instr->variables[0]->deref.child)
> @@ -2322,23 +2382,35 @@ static LLVMValueRef visit_image_load(struct nir_to_llvm_context *ctx,
> res = trim_vector(ctx, res, instr->dest.ssa.num_components);
> res = to_integer(ctx, res);
> } else {
> - bool da = glsl_sampler_type_is_array(type) ||
> - glsl_get_sampler_dim(type) == GLSL_SAMPLER_DIM_CUBE;
> + bool is_da = glsl_sampler_type_is_array(type) ||
> + glsl_get_sampler_dim(type) == GLSL_SAMPLER_DIM_CUBE;
> bool add_frag_pos = glsl_get_sampler_dim(type) == GLSL_SAMPLER_DIM_SUBPASS;
> + LLVMValueRef da = is_da ? ctx->i32one : ctx->i32zero;
> + LLVMValueRef glc = LLVMConstInt(ctx->i1, 0, false);
> + LLVMValueRef slc = LLVMConstInt(ctx->i1, 0, false);
>
> params[0] = get_image_coords(ctx, instr, add_frag_pos);
> params[1] = get_sampler_desc(ctx, instr->variables[0], DESC_IMAGE);
> params[2] = LLVMConstInt(ctx->i32, 15, false); /* dmask */
> - params[3] = LLVMConstInt(ctx->i1, 0, false); /* r128 */
> - params[4] = da ? ctx->i32one : ctx->i32zero; /* da */
> - params[5] = LLVMConstInt(ctx->i1, 0, false); /* glc */
> - params[6] = LLVMConstInt(ctx->i1, 0, false); /* slc */
> + if (HAVE_LLVM <= 0x0309) {
> + params[3] = LLVMConstInt(ctx->i1, 0, false); /* r128 */
> + params[4] = da;
> + params[5] = glc;
> + params[6] = slc;
> + } else {
> + LLVMValueRef lwe = LLVMConstInt(ctx->i1, 0, false);
> + params[3] = glc;
> + params[4] = slc;
> + params[5] = lwe;
> + params[6] = da;
> + }
>
> - build_int_type_name(LLVMTypeOf(params[0]),
> - coords_type, sizeof(coords_type));
> + get_image_intr_name("llvm.amdgcn.image.load",
> + ctx->v4f32, /* vdata */
> + LLVMTypeOf(params[0]), /* coords */
> + LLVMTypeOf(params[1]), /* rsrc */
> + intrinsic_name, sizeof(intrinsic_name));
>
> - snprintf(intrinsic_name, sizeof(intrinsic_name),
> - "llvm.amdgcn.image.load.%s", coords_type);
> res = emit_llvm_intrinsic(ctx, intrinsic_name, ctx->v4f32,
> params, 7, LLVMReadOnlyAttribute);
> }
> @@ -2349,8 +2421,7 @@ static void visit_image_store(struct nir_to_llvm_context *ctx,
> nir_intrinsic_instr *instr)
> {
> LLVMValueRef params[8];
> - char intrinsic_name[32];
> - char coords_type[8];
> + char intrinsic_name[64];
> const nir_variable *var = instr->variables[0]->var;
> LLVMValueRef i1false = LLVMConstInt(ctx->i1, 0, 0);
> LLVMValueRef i1true = LLVMConstInt(ctx->i1, 1, 0);
> @@ -2370,23 +2441,35 @@ static void visit_image_store(struct nir_to_llvm_context *ctx,
> emit_llvm_intrinsic(ctx, "llvm.amdgcn.buffer.store.format.v4f32", ctx->voidt,
> params, 6, 0);
> } else {
> - bool da = glsl_sampler_type_is_array(type) ||
> - glsl_get_sampler_dim(type) == GLSL_SAMPLER_DIM_CUBE;
> + bool is_da = glsl_sampler_type_is_array(type) ||
> + glsl_get_sampler_dim(type) == GLSL_SAMPLER_DIM_CUBE;
> + LLVMValueRef da = is_da ? i1true : i1false;
> + LLVMValueRef glc = i1false;
> + LLVMValueRef slc = i1false;
>
> params[0] = get_src(ctx, instr->src[2]);
> params[1] = get_image_coords(ctx, instr, false); /* coords */
> params[2] = get_sampler_desc(ctx, instr->variables[0], DESC_IMAGE);
> params[3] = LLVMConstInt(ctx->i32, 15, false); /* dmask */
> - params[4] = i1false; /* r128 */
> - params[5] = da ? i1true : i1false; /* da */
> - params[6] = i1false; /* glc */
> - params[7] = i1false; /* slc */
> + if (HAVE_LLVM <= 0x0309) {
> + params[4] = i1false; /* r128 */
> + params[5] = da;
> + params[6] = glc;
> + params[7] = slc;
> + } else {
> + LLVMValueRef lwe = i1false;
> + params[4] = glc;
> + params[5] = slc;
> + params[6] = lwe;
> + params[7] = da;
> + }
>
> - build_int_type_name(LLVMTypeOf(params[1]),
> - coords_type, sizeof(coords_type));
> + get_image_intr_name("llvm.amdgcn.image.store",
> + LLVMTypeOf(params[0]), /* vdata */
> + LLVMTypeOf(params[1]), /* coords */
> + LLVMTypeOf(params[2]), /* rsrc */
> + intrinsic_name, sizeof(intrinsic_name));
>
> - snprintf(intrinsic_name, sizeof(intrinsic_name),
> - "llvm.amdgcn.image.store.%s", coords_type);
> emit_llvm_intrinsic(ctx, intrinsic_name, ctx->voidt,
> params, 8, 0);
> }
>
--
Kai Wasserbäch (Kai Wasserbaech)
E-Mail: kai at dev.carbon-project.org
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