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aco: fix regclasses for spill/reload subdword temporaries

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Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41018>
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Rhys Perry 2026-04-14 16:34:58 +01:00 • committed by Marge Bot
parent 46047cf5ca
commit 638cefc8f2
1 changed files with 2 additions and 2 deletions
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4
src/amd/compiler/aco_spill.cpp
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@ -1389,7 +1389,7 @@ spill_vgpr(spill_ctx& ctx, Block& block, std::vector<aco_ptr<Instruction>>& inst
create_instruction(aco_opcode::p_split_vector, Format::PSEUDO, 1, temp.size())};
split->operands[0] = Operand(temp);
for (unsigned i = 0; i < temp.size(); i++)
split->definitions[i] = bld.def(v1);
split->definitions[i] = bld.def(v1.resize(MIN2(temp.bytes() - i * 4, 4)));
bld.insert(split);
for (unsigned i = 0; i < temp.size(); i++) {
Temp elem = split->definitions[i].getTemp();
@ -1454,7 +1454,7 @@ reload_vgpr(spill_ctx& ctx, Block& block, std::vector<aco_ptr<Instruction>>& ins
create_instruction(aco_opcode::p_create_vector, Format::PSEUDO, def.size(), 1)};
vec->definitions[0] = def;
for (unsigned i = 0; i < def.size(); i++) {
Temp tmp = bld.tmp(v1);
Temp tmp = bld.tmp(v1.resize(MIN2(def.bytes() - i * 4, 4)));
vec->operands[i] = Operand(tmp);
if (i < lds_slots) {
bld.ds(aco_opcode::ds_read_addtid_b32, Definition(tmp), bld.m0(ctx.lds_m0_zero),