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ac,radeonsi: stop using nir_intrinsic_base for TCS inputs passed via VGPRs

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This also removes one use of input_semantic[].

Acked-by: Pierre-Eric
Acked-by: Timur Kristóf <timur.kristof@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40556>
This commit is contained in:
Marek Olšák 2026-03-19 22:09:56 -04:00 • committed by Marge Bot
parent c8ce9d4b48
commit a48ffce4bd
3 changed files with 5 additions and 6 deletions
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3
src/amd/llvm/ac_nir_to_llvm.c
View file

@ -2630,7 +2630,8 @@ static LLVMValueRef visit_load_input(struct ac_nir_context *ctx, nir_intrinsic_i
LLVMGetElementType(dest_type) : dest_type;
LLVMValueRef result = ctx->abi->load_tess_varyings(ctx->abi, component_type,
base, component, count);
nir_intrinsic_io_semantics(instr).location,
component, count);
if (instr->def.bit_size == 16) {
result = ac_to_integer(&ctx->ac, result);
result = LLVMBuildTrunc(ctx->ac.builder, result, dest_type, "");

2
src/amd/llvm/ac_shader_abi.h
View file

@ -26,7 +26,7 @@ struct ac_shader_abi {
bool is_16bit[AC_LLVM_MAX_OUTPUTS * 4];
LLVMValueRef (*load_tess_varyings)(struct ac_shader_abi *abi, LLVMTypeRef type,
unsigned driver_location, unsigned component,
gl_varying_slot slot, unsigned component,
unsigned num_components);
LLVMValueRef (*load_ubo)(struct ac_shader_abi *abi, LLVMValueRef index);

6
src/gallium/drivers/radeonsi/si_shader_llvm_tess.c
View file

@ -11,18 +11,16 @@
#include "nir.h"
static LLVMValueRef si_nir_load_tcs_varyings(struct ac_shader_abi *abi, LLVMTypeRef type,
unsigned driver_location, unsigned component,
gl_varying_slot slot, unsigned component,
unsigned num_components)
{
struct si_shader_context *ctx = si_shader_context_from_abi(abi);
struct si_shader_info *info = &ctx->shader->selector->info;
assert(ctx->shader->key.ge.opt.same_patch_vertices);
uint8_t semantic = info->input_semantic[driver_location];
/* Load the TCS input from a VGPR. */
unsigned func_param = ctx->args->ac.tcs_rel_ids.arg_index + 1 +
si_shader_io_get_unique_index(semantic) * 4;
si_shader_io_get_unique_index(slot) * 4;
LLVMValueRef value[4];
for (unsigned i = component; i < component + num_components; i++) {