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aco: initialize scratch base registers on GFX9-GFX10.3

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fossil-db (navi21):
Totals from 1142 (0.70% of 162293) affected shaders:
Instrs: 271636 -> 271974 (+0.12%)
CodeSize: 1532020 -> 1533792 (+0.12%)
Latency: 7484066 -> 7485698 (+0.02%)
InvThroughput: 4048824 -> 4049579 (+0.02%)
SClause: 4171 -> 4212 (+0.98%)
PreSGPRs: 11203 -> 12276 (+9.58%)

fossil-db (vega10):
Totals from 3327 (2.06% of 161355) affected shaders:
Instrs: 257413 -> 257601 (+0.07%)
CodeSize: 1424244 -> 1425372 (+0.08%)
Latency: 8598402 -> 8600466 (+0.02%)
InvThroughput: 7906335 -> 7908234 (+0.02%)
SClause: 4932 -> 4973 (+0.83%)
PreSGPRs: 22010 -> 25405 (+15.42%)

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/17079>
This commit is contained in:
Rhys Perry
2022-05-19 14:12:08 +01:00
committed by Marge Bot
parent 97e9e42e0d
commit d2d94b62f2
9 changed files with 72 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/amd/compiler/aco_dead_code_analysis.cpp
+2 -1
View File
@@ -83,7 +83,8 @@ process_block(dce_ctx& ctx, Block& block)
bool
is_dead(const std::vector<uint16_t>& uses, Instruction* instr)
{
if (instr->definitions.empty() || instr->isBranch())
if (instr->definitions.empty() || instr->isBranch() ||
instr->opcode == aco_opcode::p_init_scratch)
return false;
if (std::any_of(instr->definitions.begin(), instr->definitions.end(),
[&uses](const Definition& def) { return !def.isTemp() || uses[def.tempId()]; }))