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JitArm64: Precheck for exceptions before calling PowerPC::CheckExceptions.

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This commit is contained in:
degasus 2016-02-28 23:27:22 +01:00
parent aea48c4591
commit 56c8f65bc2
2 changed files with 36 additions and 19 deletions
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52
Source/Core/Core/PowerPC/JitArm64/Jit.cpp
View File

@ -207,48 +207,61 @@ void JitArm64::WriteExit(u32 destination)
} }
void JitArm64::WriteExceptionExit(ARM64Reg dest) void JitArm64::WriteExceptionExit(ARM64Reg dest)
{ {
Cleanup();
DoDownCount();
ARM64Reg WA = gpr.GetReg();
LDR(INDEX_UNSIGNED, WA, X29, PPCSTATE_OFF(Exceptions));
STR(INDEX_UNSIGNED, dest, X29, PPCSTATE_OFF(pc)); STR(INDEX_UNSIGNED, dest, X29, PPCSTATE_OFF(pc));
FixupBranch no_exceptions = CBZ(WA);
gpr.Unlock(WA);
STR(INDEX_UNSIGNED, dest, X29, PPCSTATE_OFF(npc)); STR(INDEX_UNSIGNED, dest, X29, PPCSTATE_OFF(npc));
gpr.Unlock(dest); MOVI2R(EncodeRegTo64(dest), (u64)&PowerPC::CheckExceptions);
Cleanup(); BLR(EncodeRegTo64(dest));
DoDownCount();
if (Profiler::g_ProfileBlocks)
EndTimeProfile(js.curBlock);
MOVI2R(EncodeRegTo64(dest), (u64)&PowerPC::CheckExceptions);
BLR(EncodeRegTo64(dest));
LDR(INDEX_UNSIGNED, dest, X29, PPCSTATE_OFF(npc)); LDR(INDEX_UNSIGNED, dest, X29, PPCSTATE_OFF(npc));
STR(INDEX_UNSIGNED, dest, X29, PPCSTATE_OFF(pc)); STR(INDEX_UNSIGNED, dest, X29, PPCSTATE_OFF(pc));
SetJumpTarget(no_exceptions);
if (Profiler::g_ProfileBlocks)
EndTimeProfile(js.curBlock);
MOVI2R(EncodeRegTo64(dest), (u64)asm_routines.dispatcher); MOVI2R(EncodeRegTo64(dest), (u64)asm_routines.dispatcher);
BR(EncodeRegTo64(dest)); BR(EncodeRegTo64(dest));
gpr.Unlock(dest);
} }
void JitArm64::WriteExternalExceptionExit(ARM64Reg dest) void JitArm64::WriteExternalExceptionExit(ARM64Reg dest)
{ {
Cleanup();
DoDownCount();
ARM64Reg WA = gpr.GetReg();
LDR(INDEX_UNSIGNED, WA, X29, PPCSTATE_OFF(Exceptions));
STR(INDEX_UNSIGNED, dest, X29, PPCSTATE_OFF(pc)); STR(INDEX_UNSIGNED, dest, X29, PPCSTATE_OFF(pc));
FixupBranch no_exceptions = CBZ(WA);
gpr.Unlock(WA);
STR(INDEX_UNSIGNED, dest, X29, PPCSTATE_OFF(npc)); STR(INDEX_UNSIGNED, dest, X29, PPCSTATE_OFF(npc));
gpr.Unlock(dest); MOVI2R(EncodeRegTo64(dest), (u64)&PowerPC::CheckExternalExceptions);
Cleanup(); BLR(EncodeRegTo64(dest));
DoDownCount();
if (Profiler::g_ProfileBlocks)
EndTimeProfile(js.curBlock);
MOVI2R(EncodeRegTo64(dest), (u64)&PowerPC::CheckExternalExceptions);
BLR(EncodeRegTo64(dest));
LDR(INDEX_UNSIGNED, dest, X29, PPCSTATE_OFF(npc)); LDR(INDEX_UNSIGNED, dest, X29, PPCSTATE_OFF(npc));
STR(INDEX_UNSIGNED, dest, X29, PPCSTATE_OFF(pc)); STR(INDEX_UNSIGNED, dest, X29, PPCSTATE_OFF(pc));
SetJumpTarget(no_exceptions);
if (Profiler::g_ProfileBlocks)
EndTimeProfile(js.curBlock);
MOVI2R(EncodeRegTo64(dest), (u64)asm_routines.dispatcher); MOVI2R(EncodeRegTo64(dest), (u64)asm_routines.dispatcher);
BR(EncodeRegTo64(dest)); BR(EncodeRegTo64(dest));
gpr.Unlock(dest);
} }
void JitArm64::WriteExitDestInR(ARM64Reg Reg) void JitArm64::WriteExitDestInR(ARM64Reg Reg)
{ {
STR(INDEX_UNSIGNED, Reg, X29, PPCSTATE_OFF(pc)); STR(INDEX_UNSIGNED, Reg, X29, PPCSTATE_OFF(pc));
gpr.Unlock(Reg);
Cleanup(); Cleanup();
DoDownCount(); DoDownCount();
@ -257,6 +270,7 @@ void JitArm64::WriteExitDestInR(ARM64Reg Reg)
MOVI2R(EncodeRegTo64(Reg), (u64)asm_routines.dispatcher); MOVI2R(EncodeRegTo64(Reg), (u64)asm_routines.dispatcher);
BR(EncodeRegTo64(Reg)); BR(EncodeRegTo64(Reg));
gpr.Unlock(Reg);
} }
void JitArm64::DumpCode(const u8* start, const u8* end) void JitArm64::DumpCode(const u8* start, const u8* end)

3
Source/Core/Core/PowerPC/JitArm64/JitAsm.cpp
View File

@ -71,12 +71,15 @@ void JitArm64AsmRoutineManager::Generate()
BLR(X30); BLR(X30);
// Does exception checking // Does exception checking
LDR(INDEX_UNSIGNED, W0, X29, PPCSTATE_OFF(Exceptions));
FixupBranch no_exceptions = CBZ(W0);
LDR(INDEX_UNSIGNED, W0, X29, PPCSTATE_OFF(pc)); LDR(INDEX_UNSIGNED, W0, X29, PPCSTATE_OFF(pc));
STR(INDEX_UNSIGNED, W0, X29, PPCSTATE_OFF(npc)); STR(INDEX_UNSIGNED, W0, X29, PPCSTATE_OFF(npc));
MOVI2R(X30, (u64)&PowerPC::CheckExceptions); MOVI2R(X30, (u64)&PowerPC::CheckExceptions);
BLR(X30); BLR(X30);
LDR(INDEX_UNSIGNED, W0, X29, PPCSTATE_OFF(npc)); LDR(INDEX_UNSIGNED, W0, X29, PPCSTATE_OFF(npc));
STR(INDEX_UNSIGNED, W0, X29, PPCSTATE_OFF(pc)); STR(INDEX_UNSIGNED, W0, X29, PPCSTATE_OFF(pc));
SetJumpTarget(no_exceptions);
// Check the state pointer to see if we are exiting // Check the state pointer to see if we are exiting
// Gets checked on every exception check // Gets checked on every exception check