piwalker/dolphin
1
0
Fork 0
mirror of https://github.com/dolphin-emu/dolphin.git synced 2025-07-23 14:19:46 -06:00
Code Issues Packages Projects Releases Wiki Activity

JitArm64_SystemRegisters: Optimize mtspr

Browse Source 
No need to materialize the immediate if it is zero, we can just use WZR.

Before:
mov    w27, #0x0                 ; =0
str    w27, [x29, #0x1178]

After:
str    wzr, [x29, #0x1178]
This commit is contained in:
Sintendo
2024-10-10 22:16:25 +02:00
parent 8304ae3361
commit 0d9984b299
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
Source/Core/Core/PowerPC/JitArm64/JitArm64_SystemRegisters.cpp
View File

@ -477,7 +477,7 @@ void JitArm64::mtspr(UGeckoInstruction inst)
} }
// OK, this is easy. // OK, this is easy.
ARM64Reg RD = gpr.R(inst.RD); ARM64Reg RD = gpr.IsImm(inst.RD, 0) ? ARM64Reg::WZR : gpr.R(inst.RD);
STR(IndexType::Unsigned, RD, PPC_REG, PPCSTATE_OFF_SPR(iIndex)); STR(IndexType::Unsigned, RD, PPC_REG, PPCSTATE_OFF_SPR(iIndex));
} }