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reg_alloc: Reimplement ScratchHostLocReg

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This commit is contained in:
MerryMage 2017-02-24 20:01:41 +00:00
parent 640faab8a7
commit 1ee4c07f14
1 changed files with 1 additions and 10 deletions
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11
src/backend_x64/reg_alloc.cpp
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@ -201,18 +201,9 @@ HostLoc RegAlloc::UseScratchHostLocReg(IR::Inst* use_inst, HostLocList desired_l
}
HostLoc RegAlloc::ScratchHostLocReg(HostLocList desired_locations) {
DEBUG_ASSERT(std::all_of(desired_locations.begin(), desired_locations.end(), HostLocIsRegister));
HostLoc location = SelectARegister(desired_locations);
if (IsRegisterOccupied(location)) {
SpillRegister(location);
}
// Update state
MoveOutOfTheWay(location);
LocInfo(location).Lock();
DEBUG_ASSERT(LocInfo(location).IsScratch());
return location;
}