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Simplify some code

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llvm-svn: 28066
This commit is contained in:
Chris Lattner 2006-05-03 00:13:06 +00:00
parent 2bf37af52d
commit be23568cea
1 changed files with 7 additions and 21 deletions
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28
lib/ExecutionEngine/JIT/JITEmitter.cpp
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@ -565,32 +565,18 @@ void JITEmitter::emitJumpTableInfo(MachineJumpTableInfo *MJTI,
if (JT.empty() || JumpTableBase == 0) return;
unsigned Offset = 0;
unsigned EntrySize = MJTI->getEntrySize();
assert(MJTI->getEntrySize() == sizeof(void*) && "Cross JIT'ing?");
// For each jump table, map each target in the jump table to the address of
// an emitted MachineBasicBlock.
intptr_t *SlotPtr = (intptr_t*)JumpTableBase;
for (unsigned i = 0, e = JT.size(); i != e; ++i) {
const std::vector<MachineBasicBlock*> &MBBs = JT[i].MBBs;
for (unsigned mi = 0, me = MBBs.size(); mi != me; ++mi) {
uint64_t addr = MBBM[MBBs[mi]];
GenericValue addrgv;
const Type *Ty;
if (EntrySize == 4) {
addrgv.UIntVal = addr;
Ty = Type::UIntTy;
} else if (EntrySize == 8) {
addrgv.ULongVal = addr;
Ty = Type::ULongTy;
} else {
assert(0 && "Unhandled jump table entry size!");
abort();
}
// Store the address of the basic block for this jump table slot in the
// memory we allocated for the jump table in 'initJumpTableInfo'
void *ptr = (void *)((char *)JumpTableBase + Offset);
TheJIT->StoreValueToMemory(addrgv, (GenericValue *)ptr, Ty);
Offset += EntrySize;
}
// Store the address of the basic block for this jump table slot in the
// memory we allocated for the jump table in 'initJumpTableInfo'
for (unsigned mi = 0, me = MBBs.size(); mi != me; ++mi)
*SlotPtr++ = (intptr_t)MBBM[MBBs[mi]];
}
}