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[interp] Disable tiered compilation if the interpreter is enabled #118911

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Merged
merged 3 commits into from
Aug 21, 2025
Merged

[interp] Disable tiered compilation if the interpreter is enabled #118911

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23b343d
Disable Tiered Compilation if DOTNET_Interpreter or DOTNET_InterpMode…
kg Aug 20, 2025
bda2985
Remove diagnostic message
kg Aug 20, 2025
da6467a
Update src/coreclr/vm/eeconfig.cpp
kg Aug 20, 2025
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1 change: 1 addition & 0 deletions src/coreclr/inc/clrconfigvalues.h
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Expand Up @@ -305,6 +305,7 @@ RETAIL_CONFIG_STRING_INFO(EXTERNAL_AltJitExcludeAssemblies, W("AltJitExcludeAsse
RETAIL_CONFIG_STRING_INFO(EXTERNAL_InterpreterName, W("InterpreterName"), "Primary interpreter to use")
CONFIG_STRING_INFO(INTERNAL_InterpreterPath, W("InterpreterPath"), "Full path to the interpreter to use")
RETAIL_CONFIG_STRING_INFO(EXTERNAL_Interpreter, W("Interpreter"), "Enables Interpreter and selectively limits it to the specified methods.")
RETAIL_CONFIG_DWORD_INFO(EXTERNAL_InterpMode, W("InterpMode"), 0, "Enables Interpreter for a subset of all methods depending on the specified mode.")
#endif // FEATURE_INTERPRETER

RETAIL_CONFIG_DWORD_INFO(EXTERNAL_JitHostMaxSlabCache, W("JitHostMaxSlabCache"), 0x1000000, "Sets jit host max slab cache size, 16MB default")
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19 changes: 19 additions & 0 deletions src/coreclr/vm/eeconfig.cpp
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Expand Up @@ -635,6 +635,25 @@ HRESULT EEConfig::sync()

#if defined(FEATURE_TIERED_COMPILATION)
fTieredCompilation = Configuration::GetKnobBooleanValue(W("System.Runtime.TieredCompilation"), CLRConfig::EXTERNAL_TieredCompilation);

#if defined(FEATURE_INTERPRETER)
if (fTieredCompilation)
{
// Disable tiered compilation for interpreter testing. Tiered compilation and interpreter
// do not work well together currently.
LPWSTR pwzInterpreterMaybe;
IfFailThrow(CLRConfig::GetConfigValue(CLRConfig::EXTERNAL_Interpreter, &pwzInterpreterMaybe));
if (pwzInterpreterMaybe && pwzInterpreterMaybe[0] != 0)
{
fTieredCompilation = false;
}
else if (CLRConfig::GetConfigValue(CLRConfig::EXTERNAL_InterpMode) != 0)
{
fTieredCompilation = false;
}
}
#endif

if (fTieredCompilation)
{
fTieredCompilation_QuickJit =
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