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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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4
hotspot/src/cpu/x86/vm/c2_globals_x86.hpp
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@ -48,11 +48,11 @@ define_pd_global(intx, CompileThreshold, 10000);
define_pd_global(intx, OnStackReplacePercentage, 140);
define_pd_global(intx, ConditionalMoveLimit, 3);
define_pd_global(intx, FLOATPRESSURE, 6);
define_pd_global(intx, FreqInlineSize, 325);
define_pd_global(intx, MinJumpTableSize, 10);
#ifdef AMD64
define_pd_global(intx, INTPRESSURE, 13);
define_pd_global(intx, FLOATPRESSURE, 14);
define_pd_global(intx, InteriorEntryAlignment, 16);
define_pd_global(size_t, NewSizeThreadIncrease, ScaleForWordSize(4*K));
define_pd_global(intx, LoopUnrollLimit, 60);
@ -64,6 +64,7 @@ define_pd_global(intx, CodeCacheExpansionSize, 64*K);
define_pd_global(uint64_t, MaxRAM, 128ULL*G);
#else
define_pd_global(intx, INTPRESSURE, 6);
define_pd_global(intx, FLOATPRESSURE, 6);
define_pd_global(intx, InteriorEntryAlignment, 4);
define_pd_global(size_t, NewSizeThreadIncrease, 4*K);
define_pd_global(intx, LoopUnrollLimit, 50); // Design center runs on 1.3.1
@ -82,6 +83,7 @@ define_pd_global(bool, OptoPeephole, true);
define_pd_global(bool, UseCISCSpill, true);
define_pd_global(bool, OptoScheduling, false);
define_pd_global(bool, OptoBundling, false);
define_pd_global(bool, OptoRegScheduling, true);
define_pd_global(intx, ReservedCodeCacheSize, 48*M);
define_pd_global(intx, NonProfiledCodeHeapSize, 21*M);