Commit Graph

92 Commits

Author SHA1 Message Date
Henrik Rydgard
23e57b71e0 Revert "Shave one instruction off slti and slt on ARM."
This reverts commit 04742e00fc.
2013-11-30 16:06:16 +01:00
Henrik Rydgard
04742e00fc Shave one instruction off slti and slt on ARM. 2013-11-30 15:53:21 +01:00
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dffa35ef2f When ins is used with a zero argument, don't OR.
Seems it's used effectively to mask out bits with rs=zero.  Makes sense...
2013-11-29 09:17:12 -08:00
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c50ab6d6aa armjit: Fix divu when divisor is a constant 1.
Fixes #4539 and #4520.
2013-11-19 13:24:15 -08:00
Henrik Rydgard
4e0520131a Tiny optimization 2013-11-15 20:32:23 +01:00
Henrik Rydgard
d17a5fefea ARM: Fix divide by 0 in software divide used on CPUs without HW divide. 2013-11-15 20:24:20 +01:00
Sacha
20e8a81268 Switch to compile-time ARMV7 define. 2013-11-15 11:20:39 +10:00
Henrik Rydgard
9a14d33372 Disable software divide that appears to be buggy, see #4539 2013-11-14 17:25:02 +01:00
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ca7b2b554b armjit: fix major typo breaking mult/multu. 2013-11-10 21:54:44 -08:00
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7e46ee0b0f armjit: Replace MOVI2R with using the regcache.
So that it can optimize the value with existing imms.

Not actually optimizing yet.
2013-11-10 15:50:45 -08:00
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285ec1fad5 armjit: Implement mult/multu for immediates.
Uncommon, but may reduce instructions a bit.
2013-11-10 14:38:09 -08:00
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9bec82873c armjit: inline byteswaps of imm values. 2013-11-10 14:38:08 -08:00
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06c8cb9174 armjit: Do shifts with imms as much as possible.
This may even make an imm operand2 safe that wasn't before.
2013-11-10 14:38:08 -08:00
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a3a061a69f armjit: Optimize a division by a power of two.
These really happen.
2013-11-09 08:43:53 -08:00
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1776c85882 armjit: Implement a software divide for divu.
It's not actually that much code.
2013-11-09 08:43:52 -08:00
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b2a240d105 armjit: Implement msub/msubu. 2013-11-09 08:43:52 -08:00
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cb3bb73148 armjit: Improve GPR typesafety. 2013-11-09 08:24:15 -08:00
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945b8bf5c5 armjit: optimize reverse subtract, avoid temp imms.
If we have a non-op2 imm, get rid of it asap.  If we have a op2 friendly
imm, keep it.
2013-11-09 08:18:43 -08:00
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415f22ecac armjit: Preserve imms on min/max as well. 2013-11-09 08:18:43 -08:00
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5d46a82f43 armjit: Use a MOV for add/or with 0.
Might skip the ALU, so might be faster.
2013-11-08 11:41:57 -08:00
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b8e126e7ce armjit: Preserve imms in slt/sltu as possible. 2013-11-08 11:41:57 -08:00
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8393d4aaae armjit: Preserve immediates more in nor. 2013-11-08 11:41:56 -08:00
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d7e42b26a3 armjit: Avoid flushing imm on add t0, imm, imm. 2013-11-08 11:41:56 -08:00
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a435c9dd13 armjit: Optimize movz/movn with immediates. 2013-11-08 11:41:55 -08:00
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376918c408 armjit: Reverse add t0, N, t1 to preserve imm. 2013-11-08 11:41:55 -08:00