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8213745: Don't use memset to initialize array of RegMask in matcher.cpp

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Reviewed-by: kvn, shade
This commit is contained in:
Roman Kennke 2018-11-12 22:00:07 +01:00
parent d3ccf8a0ca
commit e3d65f1c12
1 changed files with 3 additions and 1 deletions
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4
src/hotspot/share/opto/matcher.cpp
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@ -1209,7 +1209,9 @@ MachNode *Matcher::match_sfpt( SafePointNode *sfpt ) {
// Allocate a private array of RegMasks. These RegMasks are not shared. // Allocate a private array of RegMasks. These RegMasks are not shared.
msfpt->_in_rms = NEW_RESOURCE_ARRAY( RegMask, cnt ); msfpt->_in_rms = NEW_RESOURCE_ARRAY( RegMask, cnt );
// Empty them all. // Empty them all.
memset( msfpt->_in_rms, 0, sizeof(RegMask)*cnt ); for (uint i = 0; i < cnt; i++) {
msfpt->_in_rms[i] = RegMask();
}
// Do all the pre-defined non-Empty register masks // Do all the pre-defined non-Empty register masks
msfpt->_in_rms[TypeFunc::ReturnAdr] = _return_addr_mask; msfpt->_in_rms[TypeFunc::ReturnAdr] = _return_addr_mask;