Mercurial > hg > truffle
diff src/cpu/x86/vm/vm_version_x86.cpp @ 7643:3ac7d10a6572
Merge with hsx25/hotspot.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
---|---|
date | Thu, 31 Jan 2013 15:42:25 +0100 |
parents | 989155e2d07a 522c328b8b77 |
children | 6b0fd0964b87 |
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--- a/src/cpu/x86/vm/vm_version_x86.cpp Thu Jan 31 11:32:14 2013 +0100 +++ b/src/cpu/x86/vm/vm_version_x86.cpp Thu Jan 31 15:42:25 2013 +0100 @@ -661,6 +661,14 @@ } } } +#if defined(COMPILER2) && defined(_ALLBSD_SOURCE) + if (MaxVectorSize > 16) { + // Limit vectors size to 16 bytes on BSD until it fixes + // restoring upper 128bit of YMM registers on return + // from signal handler. + FLAG_SET_DEFAULT(MaxVectorSize, 16); + } +#endif // COMPILER2 // Use population count instruction if available. if (supports_popcnt()) { @@ -745,6 +753,10 @@ PrefetchFieldsAhead = prefetch_fields_ahead(); #endif + if (FLAG_IS_DEFAULT(ContendedPaddingWidth) && + (cache_line_size > ContendedPaddingWidth)) + ContendedPaddingWidth = cache_line_size; + #ifndef PRODUCT if (PrintMiscellaneous && Verbose) { tty->print_cr("Logical CPUs per core: %u", @@ -791,6 +803,9 @@ if (PrefetchFieldsAhead > 0) { tty->print_cr("PrefetchFieldsAhead %d", PrefetchFieldsAhead); } + if (ContendedPaddingWidth > 0) { + tty->print_cr("ContendedPaddingWidth %d", ContendedPaddingWidth); + } } #endif // !PRODUCT }