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authorReinUsesLisp <reinuseslisp@airmail.cc>2021-02-24 22:32:00 +0100
committerameerj <52414509+ameerj@users.noreply.github.com>2021-07-23 03:51:22 +0200
commit622d676202bad317a58529efc3c15d08fd04aad1 (patch)
treedbcca62c06661ac133ff46a13dccea7e7a1f7d75
parentspirv: Add support for self-referencing phi nodes (diff)
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-rw-r--r--src/shader_recompiler/frontend/maxwell/control_flow.cpp9
-rw-r--r--src/shader_recompiler/frontend/maxwell/control_flow.h2
2 files changed, 6 insertions, 5 deletions
diff --git a/src/shader_recompiler/frontend/maxwell/control_flow.cpp b/src/shader_recompiler/frontend/maxwell/control_flow.cpp
index 52be41b84..d0dc66330 100644
--- a/src/shader_recompiler/frontend/maxwell/control_flow.cpp
+++ b/src/shader_recompiler/frontend/maxwell/control_flow.cpp
@@ -322,12 +322,13 @@ CFG::AnalysisState CFG::AnalyzeInst(Block* block, FunctionId function_id, Locati
return AnalysisState::Continue;
}
const IR::Condition cond{static_cast<IR::Pred>(pred.index), pred.negated};
- AnalyzeCondInst(block, function_id, pc, EndClass::Branch, cond);
+ AnalyzeCondInst(block, function_id, pc, EndClass::Branch, cond, true);
return AnalysisState::Branch;
}
void CFG::AnalyzeCondInst(Block* block, FunctionId function_id, Location pc,
- EndClass insn_end_class, IR::Condition cond) {
+ EndClass insn_end_class, IR::Condition cond,
+ bool visit_conditional_inst) {
if (block->begin != pc) {
// If the block doesn't start in the conditional instruction
// mark it as a label to visit it later
@@ -354,7 +355,7 @@ void CFG::AnalyzeCondInst(Block* block, FunctionId function_id, Location pc,
// Impersonate the visited block with a virtual block
*block = std::move(virtual_block);
// Set the end properties of the conditional instruction
- conditional_block->end = pc + 1;
+ conditional_block->end = visit_conditional_inst ? (pc + 1) : pc;
conditional_block->end_class = insn_end_class;
// Add a label to the instruction after the conditional instruction
Block* const endif_block{AddLabel(conditional_block, block->stack, pc + 1, function_id)};
@@ -423,7 +424,7 @@ CFG::AnalysisState CFG::AnalyzeEXIT(Block* block, FunctionId function_id, Locati
throw NotImplementedException("Conditional EXIT with PEXIT token");
}
const IR::Condition cond{flow_test, static_cast<IR::Pred>(pred.index), pred.negated};
- AnalyzeCondInst(block, function_id, pc, EndClass::Exit, cond);
+ AnalyzeCondInst(block, function_id, pc, EndClass::Exit, cond, false);
return AnalysisState::Branch;
}
if (const std::optional<Location> exit_pc{block->stack.Peek(Token::PEXIT)}) {
diff --git a/src/shader_recompiler/frontend/maxwell/control_flow.h b/src/shader_recompiler/frontend/maxwell/control_flow.h
index 8179787b8..209c9e551 100644
--- a/src/shader_recompiler/frontend/maxwell/control_flow.h
+++ b/src/shader_recompiler/frontend/maxwell/control_flow.h
@@ -128,7 +128,7 @@ private:
AnalysisState AnalyzeInst(Block* block, FunctionId function_id, Location pc);
void AnalyzeCondInst(Block* block, FunctionId function_id, Location pc, EndClass insn_end_class,
- IR::Condition cond);
+ IR::Condition cond, bool visit_conditional_inst);
/// Return true when the branch instruction is confirmed to be a branch
bool AnalyzeBranch(Block* block, FunctionId function_id, Location pc, Instruction inst,