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aco: disable add combining for ds_swizzle_b32

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ds_bpermute_b32/ds_permute_b32 are fine, I think

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Fixes: 93c8ebfa78 ('aco: Initial commit of independent AMD compiler')
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3081>
This commit is contained in:
Rhys Perry 2019-12-16 13:58:16 +00:00
parent 69bed1c918
commit ef8abfa790
1 changed files with 1 additions and 1 deletions
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2
src/amd/compiler/aco_optimizer.cpp
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@ -701,7 +701,7 @@ void label_instruction(opt_ctx &ctx, Block& block, aco_ptr<Instruction>& instr)
DS_instruction *ds = static_cast<DS_instruction *>(instr.get());
Temp base;
uint32_t offset;
if (i == 0 && parse_base_offset(ctx, instr.get(), i, &base, &offset) && base.regClass() == instr->operands[i].regClass()) {
if (i == 0 && parse_base_offset(ctx, instr.get(), i, &base, &offset) && base.regClass() == instr->operands[i].regClass() && instr->opcode != aco_opcode::ds_swizzle_b32) {
if (instr->opcode == aco_opcode::ds_write2_b32 || instr->opcode == aco_opcode::ds_read2_b32 ||
instr->opcode == aco_opcode::ds_write2_b64 || instr->opcode == aco_opcode::ds_read2_b64) {
if (offset % 4 == 0 &&