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a32_jitstate: Optimize runtime location descriptor calculation

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Calculation is now one unaligned 64-bit load.
This commit is contained in:
MerryMage
2019-05-05 23:17:15 +01:00
parent 0de3993373
commit 6e2cd35e4f
5 changed files with 67 additions and 76 deletions
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16
src/frontend/A32/location_descriptor.h
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@@ -32,10 +32,10 @@ public:
: arm_pc(arm_pc), cpsr(cpsr.Value() & CPSR_MODE_MASK), fpscr(fpscr.Value() & FPSCR_MODE_MASK) {}
explicit LocationDescriptor(const IR::LocationDescriptor& o) {
arm_pc = o.Value() >> 32;
cpsr.T(o.Value() & 1);
cpsr.E(o.Value() & 2);
fpscr = o.Value() & FPSCR_MODE_MASK;
arm_pc = static_cast<u32>(o.Value());
cpsr.T(o.Value() & (u64(0x01) << 32));
cpsr.E(o.Value() & (u64(0x10) << 32));
fpscr = static_cast<u32>(o.Value() >> 32) & FPSCR_MODE_MASK;
}
u32 PC() const { return arm_pc; }
@@ -82,10 +82,10 @@ public:
u64 UniqueHash() const noexcept {
// This value MUST BE UNIQUE.
// This calculation has to match up with EmitX64::EmitTerminalPopRSBHint
const u64 pc_u64 = u64(arm_pc) << 32;
const u64 fpscr_u64 = u64(fpscr.Value());
const u64 t_u64 = cpsr.T() ? 1 : 0;
const u64 e_u64 = cpsr.E() ? 2 : 0;
const u64 pc_u64 = u64(arm_pc);
const u64 fpscr_u64 = u64(fpscr.Value()) << 32;
const u64 t_u64 = cpsr.T() ? u64(0x01) << 32 : 0;
const u64 e_u64 = cpsr.E() ? u64(0x10) << 32 : 0;
return pc_u64 | fpscr_u64 | t_u64 | e_u64;
}