diff options
| author | Sintendo <bram.speeckaert@gmail.com> | 2021-01-26 22:56:05 +0100 |
|---|---|---|
| committer | Sintendo <bram.speeckaert@gmail.com> | 2021-01-28 23:16:48 +0100 |
| commit | 356172bc98760f77f2202a2e057fcdce1a0c0533 (patch) | |
| tree | e00e10a5f2da81619479675d03c1ee889ee5b390 /Source | |
| parent | b760a56a9abd4fdda2f2809f0ad8e7d861c7a2a8 (diff) | |
Jit64: boolX - Optimize and for size
AND allows for a more compact representation for constants that can be
represented by a signed 8-bit integer, while MOV does not. By letting
MOV handle the larger constants we can occasionally save a byte.
Before:
41 8B FE mov edi,r14d
81 E7 FF FE FF FF and edi,0FFFFFEFFh
After:
BF FF FE FF FF mov edi,0FFFFFEFFh
41 23 FE and edi,r14d
Diffstat (limited to 'Source')
| -rw-r--r-- | Source/Core/Core/PowerPC/Jit64/Jit_Integer.cpp | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/Source/Core/Core/PowerPC/Jit64/Jit_Integer.cpp b/Source/Core/Core/PowerPC/Jit64/Jit_Integer.cpp index 7b16d335f0..7bca28fd4b 100644 --- a/Source/Core/Core/PowerPC/Jit64/Jit_Integer.cpp +++ b/Source/Core/Core/PowerPC/Jit64/Jit_Integer.cpp @@ -739,9 +739,18 @@ void Jit64::boolX(UGeckoInstruction inst) } else { - if (a != j) + if (a == j) + AND(32, Ra, Imm32(imm)); + else if (s32(imm) >= -128 && s32(imm) <= 127) + { MOV(32, Ra, Rj); - AND(32, Ra, Imm32(imm)); + AND(32, Ra, Imm32(imm)); + } + else + { + MOV(32, Ra, Imm32(imm)); + AND(32, Ra, Rj); + } if (final_not) { |