libretro/ppsspp
1
0
Fork 0
mirror of https://github.com/libretro/ppsspp.git synced 2024-11-30 20:01:00 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

arm64jit: Use TBZ/TBNZ for fp branches.

Browse Source
This commit is contained in:
Unknown W. Brackets 2017-12-29 14:35:31 -08:00
parent c71285c970
commit 3b4917a308
1 changed files with 14 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
Core/MIPS/ARM64/Arm64CompBranch.cpp
View File

@ -353,19 +353,24 @@ void Arm64Jit::BranchFPFlag(MIPSOpcode op, CCFlags cc, bool likely) {
if (!likely && delaySlotIsNice)
CompileDelaySlot(DELAYSLOT_NICE);
// TODO: Maybe we could use TBZ here?
gpr.MapReg(MIPS_REG_FPCOND);
TSTI2R(gpr.R(MIPS_REG_FPCOND), 1, SCRATCH1);
Arm64Gen::FixupBranch ptr;
if (!likely) {
if (!delaySlotIsNice)
CompileDelaySlot(DELAYSLOT_SAFE_FLUSH);
else
FlushAll();
ptr = B(cc);
} else {
if (likely || delaySlotIsNice) {
// FlushAll() won't actually change the reg.
ARM64Reg ar = gpr.R(MIPS_REG_FPCOND);
FlushAll();
if (cc == CC_EQ) {
ptr = TBZ(ar, 0);
} else {
ptr = TBNZ(ar, 0);
}
} else {
TSTI2R(gpr.R(MIPS_REG_FPCOND), 1, SCRATCH1);
CompileDelaySlot(DELAYSLOT_SAFE_FLUSH);
ptr = B(cc);
}
if (likely) {
CompileDelaySlot(DELAYSLOT_FLUSH);
}