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[SYCL][Native CPU] Avoid dangling references. #20145

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merged 1 commit into from
Sep 22, 2025
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[SYCL][Native CPU] Avoid dangling references. #20145

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13 changes: 12 additions & 1 deletion ...SYCLNativeCPUUtils/compiler_passes/vecz/source/transform/control_flow_conversion_pass.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -115,6 +115,10 @@ class ControlFlowConversionState::Impl : public ControlFlowConversionState {
Instruction *persistedCombinedDivergentExitMask = nullptr;
};

/// @brief Create loop masks for the specified loop and its subloops.
/// @param[in] L Loop which should have its LoopMasksInfo created.
void createLoopMasks(Loop *L);

/// @brief Convert the function's CFG to data-flow.
/// @return true if the function's CFG was converted, false otherwise.
bool convertToDataFlow();
Expand Down Expand Up @@ -538,6 +542,13 @@ bool ControlFlowConversionState::replaceReachableUses(Reachability &RC,
return true;
}

void ControlFlowConversionState::Impl::createLoopMasks(Loop *L) {
LoopMasks[L];
for (auto *L : L->getSubLoops()) {
createLoopMasks(L);
}
}

bool ControlFlowConversionState::Impl::convertToDataFlow() {
DT = &AM.getResult<DominatorTreeAnalysis>(F);
PDT = &AM.getResult<PostDominatorTreeAnalysis>(F);
Expand All @@ -546,7 +557,7 @@ bool ControlFlowConversionState::Impl::convertToDataFlow() {

// Make sure every loop has an entry in the masks table before we start.
for (auto *L : *LI) {
LoopMasks[L];
createLoopMasks(L);
}

if (!VU.choices().linearizeBOSCC()) {
Expand Down