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Reduce my idiocy in register saving code.

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(1) Rename ABI_ALL_CALLEE_SAVED to ABI_ALL_CALLER_SAVED, because that's
what it was actually defined as (and used as).  Derp.

(2) RegistersInUse is always used for the purpose of saving registers
before calling a C++ function in the middle of a JIT block (without
flushing).  There is no need to save callee-saved registers in this
case.  Change the name to CallerSavedRegistersInUse and mask with
ABI_ALL_CALLER_SAVED.

Nothing obvious broke when starting up a Melee game.  (I added a test
for anything actually being masked out; it happens, but in this
particular case seemed to occur at most a few dozen times per second, so
the actual performance benefit is probably negligible.)
This commit is contained in:
comex
2014-08-23 14:41:31 -04:00
parent 7725737872
commit d19ec35363
6 changed files with 21 additions and 21 deletions
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4
Source/Core/Common/x64ABI.h
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@ -30,7 +30,7 @@
#define ABI_PARAM3 R8
#define ABI_PARAM4 R9
#define ABI_ALL_CALLEE_SAVED ((1 << RAX) | (1 << RCX) | (1 << RDX) | (1 << R8) | \
#define ABI_ALL_CALLER_SAVED ((1 << RAX) | (1 << RCX) | (1 << RDX) | (1 << R8) | \
(1 << R9) | (1 << R10) | (1 << R11) | \
(1 << XMM0) | (1 << XMM1) | (1 << XMM2) | (1 << XMM3) | \
(1 << XMM4) | (1 << XMM5))
@ -44,7 +44,7 @@
#define ABI_PARAM5 R8
#define ABI_PARAM6 R9
#define ABI_ALL_CALLEE_SAVED ((1 << RAX) | (1 << RCX) | (1 << RDX) | (1 << RDI) | \
#define ABI_ALL_CALLER_SAVED ((1 << RAX) | (1 << RCX) | (1 << RDX) | (1 << RDI) | \
(1 << RSI) | (1 << R8) | (1 << R9) | (1 << R10) | (1 << R11) | \
0xffff0000 /* xmm0..15 */)