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| author | Sintendo <bram.speeckaert@gmail.com> | 2021-01-25 23:25:38 +0100 |
|---|---|---|
| committer | Sintendo <bram.speeckaert@gmail.com> | 2021-01-28 23:16:31 +0100 |
| commit | c3775588dfd65ae09e1a174fdba35d7179ccfc59 (patch) | |
| tree | 05b817e5ad13b16c7c2fcbde7eba9d93cab3c4c5 /Source | |
| parent | c9011e9d2c1a8bc8a1121d220e7a0d0b33c71e15 (diff) | |
Jit64: boolX - Special case xor with 0xFFFFFFFF
Ever so slightly shorter.
When the condition register needs updating, we still prefer xor over
not+test.
Before:
45 8B F5 mov r14d,r13d
41 83 F6 FF xor r14d,0FFFFFFFFh
After:
45 8B F5 mov r14d,r13d
41 F7 D6 not r14d
Diffstat (limited to 'Source')
| -rw-r--r-- | Source/Core/Core/PowerPC/Jit64/Jit_Integer.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Source/Core/Core/PowerPC/Jit64/Jit_Integer.cpp b/Source/Core/Core/PowerPC/Jit64/Jit_Integer.cpp index b4cb6cee39..2997748790 100644 --- a/Source/Core/Core/PowerPC/Jit64/Jit_Integer.cpp +++ b/Source/Core/Core/PowerPC/Jit64/Jit_Integer.cpp @@ -693,6 +693,12 @@ void Jit64::boolX(UGeckoInstruction inst) MOV(32, Ra, Rj); needs_test = true; } + else if (imm == 0xFFFFFFFF && !inst.Rc) + { + if (a != j) + MOV(32, Ra, Rj); + NOT(32, Ra); + } else { if (a != j) |