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8134802: LCM register pressure scheduling

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Calculate register pressure in a block to help instructions scheduling.

Reviewed-by: kvn, dlong
This commit is contained in:
Michael Berg 2015-09-16 13:16:17 -07:00
parent a402bebf6e
commit d49d1ea740
21 changed files with 513 additions and 35 deletions
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hotspot/src/cpu/sparc/vm/c2_globals_sparc.hpp
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@ -64,6 +64,7 @@ define_pd_global(bool, OptoPeephole, false);
define_pd_global(bool, UseCISCSpill, false);
define_pd_global(bool, OptoBundling, false);
define_pd_global(bool, OptoScheduling, true);
define_pd_global(bool, OptoRegScheduling, false);
#ifdef _LP64
// We need to make sure that all generated code is within