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aco: improve RA for uneven p_split_vector

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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/4772>
This commit is contained in:
Rhys Perry
2020-04-27 20:28:41 +01:00
committed by Marge Bot
parent 24116a8a56
commit 99ca96fbf5
1 changed files with 2 additions and 1 deletions
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src/amd/compiler/aco_register_allocation.cpp
+2 -1
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@@ -1832,7 +1832,8 @@ void register_allocation(Program *program, std::vector<TempSet>& live_out_per_bl
definition.setFixed(definition.physReg());
else if (instr->opcode == aco_opcode::p_split_vector) {
PhysReg reg = instr->operands[0].physReg();
reg.reg_b += i * definition.bytes();
for (unsigned j = 0; j < i; j++)
reg.reg_b += instr->definitions[j].bytes();
if (get_reg_specified(ctx, register_file, definition.regClass(), parallelcopy, instr, reg))
definition.setFixed(reg);
} else if (instr->opcode == aco_opcode::p_wqm) {