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Added the llvm.readport and llvm.writeport intrinsics. 

The Verifier ensures that their parameters are of integral types and have
the correct sign, but it does not enforce any size restrictions because
such restrictions are platform dependent.

llvm-svn: 12781
This commit is contained in:
John Criswell 2004-04-08 20:27:38 +00:00
parent 6d42651933
commit 5201004ef9
2 changed files with 23 additions and 0 deletions
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3
llvm/lib/VMCore/Function.cpp
View File

@ -227,6 +227,7 @@ unsigned Function::getIntrinsicID() const {
break;
case 'r':
if (getName() == "llvm.returnaddress") return Intrinsic::returnaddress;
if (getName() == "llvm.readport") return Intrinsic::readport;
break;
case 's':
if (getName() == "llvm.setjmp") return Intrinsic::setjmp;
@ -237,6 +238,8 @@ unsigned Function::getIntrinsicID() const {
if (getName() == "llvm.va_copy") return Intrinsic::vacopy;
if (getName() == "llvm.va_end") return Intrinsic::vaend;
if (getName() == "llvm.va_start") return Intrinsic::vastart;
case 'w':
if (getName() == "llvm.writeport") return Intrinsic::writeport;
break;
}
// The "llvm." namespace is reserved!

20
llvm/lib/VMCore/Verifier.cpp
View File

@ -606,6 +606,26 @@ void Verifier::visitIntrinsicFunctionCall(Intrinsic::ID ID, CallInst &CI) {
NumArgs = 1;
break;
// Verify that read and write port have integral parameters of the correct
// signed-ness.
case Intrinsic::writeport:
Assert1(FT->getNumParams() == 2,
"Illegal # arguments for intrinsic function!", IF);
Assert1(FT->getParamType(0)->isUnsigned(),
"First argument not unsigned int!", IF);
Assert1(FT->getParamType(1)->isIntegral(),
"First argument not unsigned int!", IF);
NumArgs = 2;
break;
case Intrinsic::readport:
Assert1(FT->getNumParams() == 1,
"Illegal # arguments for intrinsic function!", IF);
Assert1(FT->getParamType(0)->isUnsigned(),
"First argument not unsigned int!", IF);
NumArgs = 1;
break;
case Intrinsic::setjmp: NumArgs = 1; break;
case Intrinsic::longjmp: NumArgs = 2; break;
case Intrinsic::sigsetjmp: NumArgs = 2; break;