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r600/sfn: deduplicate some code in DCE

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Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Assisted-by: Copilot (auto mode)
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41945>
This commit is contained in:
Gert Wollny 2026-04-26 22:35:22 +02:00 • committed by Marge Bot
parent 4c21894460
commit 1b6526da17
1 changed files with 20 additions and 20 deletions
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40
src/gallium/drivers/r600/sfn/sfn_optimizer.cpp
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@ -71,6 +71,11 @@ public:
void visit(LDSReadInstr *instr) override;
void visit(RatInstr *instr) override { (void)instr; };
private:
template <typename T>
bool remove_unused_vec_dest_components(T *instr);
public:
bool progress;
};
@ -159,26 +164,23 @@ DCEVisitor::visit(AluGroup *instr)
void
DCEVisitor::visit(TexInstr *instr)
{
auto& dest = instr->dst();
bool has_uses = false;
RegisterVec4::Swizzle swz = instr->all_dest_swizzle();
for (int i = 0; i < 4; ++i) {
if (!dest[i]->has_uses())
swz[i] = 7;
else
has_uses |= true;
}
instr->set_dest_swizzle(swz);
if (has_uses)
return;
progress |= instr->set_dead();
progress |= remove_unused_vec_dest_components(instr);
}
void
DCEVisitor::visit(FetchInstr *instr)
{
bool dead = remove_unused_vec_dest_components(instr);
if (dead)
sfn_log << SfnLog::opt << "set dead: " << *instr << "\n";
progress |= dead;
}
template <typename T>
bool
DCEVisitor::remove_unused_vec_dest_components(T *instr)
{
auto& dest = instr->dst();
@ -193,11 +195,9 @@ DCEVisitor::visit(FetchInstr *instr)
instr->set_dest_swizzle(swz);
if (has_uses)
return;
return false;
sfn_log << SfnLog::opt << "set dead: " << *instr << "\n";
progress |= instr->set_dead();
return instr->set_dead();
}
void