Slava Pestov
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24a50c8006
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compiler.cfg.two-operand: sometimes we can eliminate a copy in the x = y <op> y case
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2009-08-08 20:03:42 -05:00 |
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Slava Pestov
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4b7ba38aab
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compiler.cfg: virtual registers are integers now, and representations are stored off to the side. Fix bug in representation selection that would manifest if a value was used as a float and a fixnum in different branches; cannot globally unbox float in this case
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2009-08-08 04:02:18 -05:00 |
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Slava Pestov
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725280d424
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Split off the notion of a register representation from a register class
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2009-08-07 17:44:50 -05:00 |
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Slava Pestov
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370f4c081d
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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
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2009-08-05 18:57:46 -05:00 |
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Slava Pestov
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9bde92220b
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compiler.cfg.two-operand: if last instruction in a basic block is an overflowing arithmetic op of the form x = y op x, we now convert it correctly. This fixes compiler regression with benchmark.dawes after recent coalescing changes
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2009-08-01 23:50:47 -05:00 |
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Slava Pestov
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e8cf50ac3e
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compiler.cfg.two-operand: make it work in more cases
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2009-07-27 22:28:29 -05:00 |