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[dxbc] Handle dead code in shader binaries

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We should not emit any code when not inside a function.

Fixes #3154.
This commit is contained in:
Philip Rebohle 2023-01-05 11:58:23 +01:00
parent c10b53ed3e
commit 5115d80d51
2 changed files with 12 additions and 0 deletions
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11
src/dxbc/dxbc_compiler.cpp
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@ -72,6 +72,17 @@ namespace dxvk {
m_lastOp = m_currOp;
m_currOp = ins.op;
if (!m_insideFunction
&& ins.opClass != DxbcInstClass::CustomData
&& ins.opClass != DxbcInstClass::Declaration
&& ins.opClass != DxbcInstClass::HullShaderPhase
&& ins.opClass != DxbcInstClass::NoOperation
&& ins.op != DxbcOpcode::Label) {
if (!std::exchange(m_hasDeadCode, true))
Logger::warn("DxbcCompiler: Dead code detected");
return;
}
switch (ins.opClass) {
case DxbcInstClass::Declaration:
return this->emitDcl(ins);

1
src/dxbc/dxbc_compiler.h
View File

@ -531,6 +531,7 @@ namespace dxvk {
//////////////////////
// Global state stuff
bool m_precise = true;
bool m_hasDeadCode = false;
DxbcOpcode m_lastOp = DxbcOpcode::Nop;
DxbcOpcode m_currOp = DxbcOpcode::Nop;