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GnmDriver: Clear context support (#567)

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* gnmdriver: added support for gpu context reset

* shader_recompiler: minor validation fixes

* shader_recompiler: added `V_CMPX_GT_I32`

* shader_recompiler: fix for crash on inline sampler access

* compilation warnings and dead code elimination

* amdgpu: fix for registers addressing

* libraries: videoout: reduce logging pressure

* shader_recompiler: fix for devergence scope detection
This commit is contained in:
psucien
2024-08-25 22:01:05 +02:00
committed by GitHub
parent c2ddfe51e1
commit b687ae5e34
19 changed files with 147 additions and 50 deletions
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18
src/shader_recompiler/frontend/control_flow_graph.cpp
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@@ -21,8 +21,13 @@ struct Compare {
}
};
static IR::Condition MakeCondition(Opcode opcode) {
switch (opcode) {
static IR::Condition MakeCondition(const GcnInst& inst) {
if (inst.IsCmpx()) {
ASSERT(inst.opcode == Opcode::V_CMPX_NE_U32);
return IR::Condition::Execnz;
}
switch (inst.opcode) {
case Opcode::S_CBRANCH_SCC0:
return IR::Condition::Scc0;
case Opcode::S_CBRANCH_SCC1:
@@ -37,7 +42,6 @@ static IR::Condition MakeCondition(Opcode opcode) {
return IR::Condition::Execnz;
case Opcode::S_AND_SAVEEXEC_B64:
case Opcode::S_ANDN2_B64:
case Opcode::V_CMPX_NE_U32:
return IR::Condition::Execnz;
default:
return IR::Condition::True;
@@ -94,7 +98,8 @@ void CFG::EmitDivergenceLabels() {
// While this instruction does not save EXEC it is often used paired
// with SAVEEXEC to mask the threads that didn't pass the condition
// of initial branch.
inst.opcode == Opcode::S_ANDN2_B64 || inst.opcode == Opcode::V_CMPX_NE_U32;
(inst.opcode == Opcode::S_ANDN2_B64 && inst.dst[0].field == OperandField::ExecLo) ||
inst.opcode == Opcode::V_CMPX_NE_U32;
};
const auto is_close_scope = [](const GcnInst& inst) {
// Closing an EXEC scope can be either a branch instruction
@@ -104,7 +109,8 @@ void CFG::EmitDivergenceLabels() {
// Sometimes compiler might insert instructions between the SAVEEXEC and the branch.
// Those instructions need to be wrapped in the condition as well so allow branch
// as end scope instruction.
inst.opcode == Opcode::S_CBRANCH_EXECZ || inst.opcode == Opcode::S_ANDN2_B64;
inst.opcode == Opcode::S_CBRANCH_EXECZ ||
(inst.opcode == Opcode::S_ANDN2_B64 && inst.dst[0].field == OperandField::ExecLo);
};
// Since we will be adding new labels, avoid iterating those as well.
@@ -171,7 +177,7 @@ void CFG::EmitBlocks() {
block->begin_index = GetIndex(start);
block->end_index = end_index;
block->end_inst = end_inst;
block->cond = MakeCondition(end_inst.opcode);
block->cond = MakeCondition(end_inst);
blocks.insert(*block);
}
}