6b3aeeb414
compiler.cfg.linear-scan: don't insert a _reload if the register is going to be overwritten anyway
2010-05-03 17:34:14 -04:00
8b887630a0
compiler.cfg: convert code into two-operand form before SSA destruction; SSA destruction now operates on a relaxed SSA form where multiple defs of the same vreg are allowed, but only within a single basic block. This makes linear scan's coalescing redundant, allowing it to be removed completely
2009-08-05 18:57:46 -05:00
8677d56466
compiler.cfg.linear-scan: fix case where a register can be made available for only a part of a live interval's lifetime, but there are no more usages after the split location. This case never came up until global stack analysis, at which point it started to be exercised on x86-32
2009-07-30 02:13:30 -05:00
279733adfb
compiler.cfg.linear-scan: more code cleanups, and working on split-to-fit algorithm
2009-07-09 00:20:03 -05:00
b02590cd58
compiler.cfg.linear-scan: code cleanups
2009-07-08 23:28:28 -05:00
15134e61e0
compiler.cfg.linear-scan: Re-implement spilling, add some additional runtime assertions, simplify assignment pass since it doesn't have to track spill slots anymore; just assume a live value that's not in active or inactive is spilled
2009-07-07 03:28:55 -05:00
d6f45a5216
compiler.cfg.linear-scan: minor fixes
2009-07-05 22:51:53 -05:00
e1e24c4802
compiler.cfg.linear-scan: Further progress on inactive interval handling
2009-06-17 15:27:20 -05:00
941d7a1eeb
Various linear scan fixes
...
insert spill before reload to fix x86-32 regression
inactive splitting: if all inactive intervals' registers are in use, don't fail
fix stack analysis tests
2009-06-13 17:35:40 -05:00
d09ece8152
Split up compiler.cfg.linear-scan.allocation into a number of sub-vocabularies; start work on compiler.cfg.linear-scan.resolve; start work on inactive interval splitting
2009-06-11 17:55:14 -05:00
Slava Pestov