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JIT: constrain max IL size for OSR inlining #117816

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Merged
merged 1 commit into from
Jul 18, 2025
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JIT: constrain max IL size for OSR inlining #117816

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14 changes: 10 additions & 4 deletions src/coreclr/jit/inlinepolicy.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1377,15 +1377,21 @@ void ExtendedDefaultPolicy::NoteInt(InlineObservation obs, int value)
}
else if (m_RootCompiler->fgHaveSufficientProfileWeights())
{
// For now we want to inline somewhat less aggressively in Tier1+Instr. We can reconsider
// For now we want to inline somewhat less aggressively in Tier1+Instr and OSR. We can reconsider
// when we have inlinee instrumentation. Otherwise we may lose profile data for key inlinees.
//
const bool isTier1Instr = m_RootCompiler->opts.IsInstrumentedAndOptimized();
JITDUMP("Root has sufficient profile%s\n",
isTier1Instr ? "; but we are not boosting max IL size for Tier1+Instr" : "");
if (!isTier1Instr)
const bool isOSR = m_RootCompiler->opts.IsOSR();

if (isTier1Instr || isOSR)
{
JITDUMP("Root has sufficient profile. Leaving max IL size at %u for Tier1+Instr or OSR\n",
maxCodeSize);
}
else
{
maxCodeSize = static_cast<unsigned>(JitConfig.JitExtDefaultPolicyMaxILRoot());
JITDUMP("Root has sufficient profile. Boosting max IL size to %u\n", maxCodeSize);
}
}
else
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