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JIT::runFunction(): add a fast path for functions with a single argument that is a pointer.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161171 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nuno Lopes 2012-08-02 12:09:32 +00:00
parent 31ce7bf6be
commit 847a32b78f
1 changed files with 7 additions and 2 deletions
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9
lib/ExecutionEngine/JIT/JIT.cpp
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@ -433,13 +433,18 @@ GenericValue JIT::runFunction(Function *F,
}
break;
case 1:
if (FTy->getNumParams() == 1 &&
FTy->getParamType(0)->isIntegerTy(32)) {
if (FTy->getParamType(0)->isIntegerTy(32)) {
GenericValue rv;
int (*PF)(int) = (int(*)(int))(intptr_t)FPtr;
rv.IntVal = APInt(32, PF(ArgValues[0].IntVal.getZExtValue()));
return rv;
}
if (FTy->getParamType(0)->isPointerTy()) {
GenericValue rv;
int (*PF)(char *) = (int(*)(char *))(intptr_t)FPtr;
rv.IntVal = APInt(32, PF((char*)GVTOP(ArgValues[0])));
return rv;
}
break;
}
}