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SIMD16 drop in case of PTSS exhaustion fix

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Final SIMD16 drop in case of PTSS exhaustion now correctly
reports failure if it didn't help to compile
This commit is contained in:
Sukhov, Egor
2025-10-20 14:10:47 +00:00
committed by igcbot
parent a42d3f6321
commit 61653f9c0a
3 changed files with 7 additions and 2 deletions
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2
IGC/Compiler/CISACodeGen/OpenCLKernelCodeGen.cpp
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@ -2284,8 +2284,8 @@ void CodeGen(OpenCLProgramContext *ctx) {
IGC_SET_FLAG_VALUE(ForceSIMDRPELimit, 0);
ctx->m_retryManager.kernelSet.insert(shader->entry->getName().str());
ctx->EmitWarning("we couldn't compile without exceeding max permitted PTSS, drop SIMD \n", nullptr);
ctx->m_retryManager.DecreaseState();
} else {
std::string errorMsg = "total scratch space exceeds HW "
"supported limit for kernel " +
shader->entry->getName().str() + ": " + std::to_string(getScratchUse(shader, ctx)) +

6
IGC/Compiler/CodeGenContext.cpp
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@ -64,6 +64,11 @@ bool RetryManager::AdvanceState() {
return (stateId < RetryTableSize);
}
void RetryManager::DecreaseState() {
IGC_ASSERT(stateId < RetryTableSize);
stateId = prevStateId;
}
unsigned RetryManager::GetPerFuncRetryStateId(Function *F) const {
if (IGC_GET_FLAG_VALUE(AllowStackCallRetry) == 2 && F != nullptr && prevStateId < RetryTableSize &&
!PerFuncRetrySet.empty()) {
@ -321,7 +326,6 @@ LLVMContextWrapper::LLVMContextWrapper(bool createResourceDimTypes) : m_UserAddr
if (WA_OpaquePointersCL && WA_OpaquePointersCL->getNumOccurrences() > 0) {
IGC_IsPointerModeAlreadySet = true;
}
if (IGC::canOverwriteLLVMCtxPtrMode(basePtr, IGC_IsPointerModeAlreadySet)) {
bool enableOpaquePointers = AreOpaquePointersEnabled();
IGCLLVM::setOpaquePointers(basePtr, enableOpaquePointers);

1
IGC/Compiler/CodeGenPublic.h
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@ -656,6 +656,7 @@ public:
RetryManager &operator=(const RetryManager &) = delete;
bool AdvanceState();
void DecreaseState();
bool AllowLICM(llvm::Function *F = nullptr) const;
bool AllowPromotePrivateMemory(llvm::Function *F = nullptr) const;
bool AllowVISAPreRAScheduler(llvm::Function *F = nullptr) const;