mirror of
https://github.com/yuzu-emu/yuzu.git
synced 2024-08-22 00:33:23 +02:00
shader: Reorder phi nodes when redefined as undefined opcodes
This commit is contained in:
parent
8dd0acfaeb
commit
32b6c63485
@ -181,8 +181,16 @@ private:
|
|||||||
}
|
}
|
||||||
if (same.IsEmpty()) {
|
if (same.IsEmpty()) {
|
||||||
// The phi is unreachable or in the start block
|
// The phi is unreachable or in the start block
|
||||||
const auto first_not_phi{std::ranges::find_if_not(block->Instructions(), IsPhi)};
|
// First remove the phi node from the block, it will be reinserted
|
||||||
|
IR::Block::InstructionList& list{block->Instructions()};
|
||||||
|
list.erase(IR::Block::InstructionList::s_iterator_to(phi));
|
||||||
|
|
||||||
|
// Insert an undef instruction after all phi nodes (to keep phi instructions on top)
|
||||||
|
const auto first_not_phi{std::ranges::find_if_not(list, IsPhi)};
|
||||||
same = IR::Value{&*block->PrependNewInst(first_not_phi, undef_opcode)};
|
same = IR::Value{&*block->PrependNewInst(first_not_phi, undef_opcode)};
|
||||||
|
|
||||||
|
// Insert the phi node after the undef opcode, this will be replaced with an identity
|
||||||
|
list.insert(first_not_phi, phi);
|
||||||
}
|
}
|
||||||
// Reroute all uses of phi to same and remove phi
|
// Reroute all uses of phi to same and remove phi
|
||||||
phi.ReplaceUsesWith(same);
|
phi.ReplaceUsesWith(same);
|
||||||
|
Loading…
Reference in New Issue
Block a user