mirror/yuzu
1
0
Fork 0
mirror of https://github.com/yuzu-emu/yuzu.git synced 2024-09-15 00:55:33 +00:00
Code Issues Packages Projects Releases Wiki Activity

structured_control_flow: Skip reordering nested demote branches.

Browse Source 
Nested demote branches add complexity with combining the condition if it has not been initialized yet. Skip them for the time being.
This commit is contained in:
ameerj 2021-08-25 14:26:49 -04:00
parent 4fda7f1c82
commit 907dfbea71
1 changed files with 11 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
src/shader_recompiler/frontend/maxwell/structured_control_flow.cpp
View File

@ -872,10 +872,21 @@ private:
std::vector<IR::Block*> demote_blocks;
std::vector<IR::U1> demote_conds;
u32 num_epilogues{};
u32 branch_depth{};
for (const IR::AbstractSyntaxNode& node : syntax_list) {
if (node.type == Type::If) {
++branch_depth;
}
if (node.type == Type::EndIf) {
--branch_depth;
}
if (node.type != Type::Block) {
continue;
}
if (branch_depth > 1) {
// Skip reordering nested demote branches.
continue;
}
for (const IR::Inst& inst : node.data.block->Instructions()) {
const IR::Opcode op{inst.GetOpcode()};
if (op == IR::Opcode::DemoteToHelperInvocation) {