Slava Pestov 0c431f1222 compiler.tree.propagation: fix broken corner cases in bitand and shift transforms, exposed by Hugh Aguilar's LC53 benchmark		2009-10-24 01:09:32 -05:00
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info	compiler: on PPC, ANDI, ORI and XORI instructions take an unsigned 16-bit immediate, unlike ADDI, SUBI and MULLI which take a signed 16-bit immediate. The code generator was not aware of this, and so for example '[ >fixnum -16 bitand ]' would generate incorrect code. Split up small-enough? hook into immediate-arithmetic? and immediate-bitwise? and update value numbering to be aware of this. Fixes classes.struct bitfields test failure	2009-10-19 04:58:29 -05:00
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known-words	compiler.tree.propagation: fix broken corner cases in bitand and shift transforms, exposed by Hugh Aguilar's LC53 benchmark	2009-10-24 01:09:32 -05:00
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transforms	compiler.tree.propagation: fix broken corner cases in bitand and shift transforms, exposed by Hugh Aguilar's LC53 benchmark	2009-10-24 01:09:32 -05:00
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propagation-tests.factor	compiler.tree.propagation: fix broken corner cases in bitand and shift transforms, exposed by Hugh Aguilar's LC53 benchmark	2009-10-24 01:09:32 -05:00
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