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hook ISD::STACKADDR to an intrinsic 

llvm-svn: 104869
This commit is contained in:
Jim Grosbach 2010-05-27 18:52:11 +00:00
parent da265b8d63
commit b68dfb45f5
2 changed files with 7 additions and 2 deletions
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5
llvm/include/llvm/Intrinsics.td
View File

@ -197,12 +197,13 @@ def int_gcwrite : Intrinsic<[],
def int_returnaddress : Intrinsic<[llvm_ptr_ty], [llvm_i32_ty], [IntrNoMem]>;
def int_frameaddress : Intrinsic<[llvm_ptr_ty], [llvm_i32_ty], [IntrNoMem]>;
// Note: we treat stacksave/stackrestore as writemem because we don't otherwise
// model their dependencies on allocas.
// Note: we treat stacksave/stackrestore and stackaddr as writemem because we
// don't otherwise model their dependencies on allocas.
def int_stacksave : Intrinsic<[llvm_ptr_ty]>,
GCCBuiltin<"__builtin_stack_save">;
def int_stackrestore : Intrinsic<[], [llvm_ptr_ty]>,
GCCBuiltin<"__builtin_stack_restore">;
def int_stackaddress : Intrinsic<[llvm_ptr_ty], []>;
// IntrWriteArgMem is more pessimistic than strictly necessary for prefetch,
// however it does conveniently prevent the prefetch from being reordered

4
llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
View File

@ -3756,6 +3756,10 @@ SelectionDAGBuilder::visitIntrinsicCall(const CallInst &I, unsigned Intrinsic) {
setValue(&I, DAG.getNode(ISD::FRAMEADDR, dl, TLI.getPointerTy(),
getValue(I.getOperand(1))));
return 0;
case Intrinsic::stackaddress:
setValue(&I, DAG.getNode(ISD::STACKADDR, dl, TLI.getPointerTy(), getRoot(),
getValue(I.getOperand(1))));
return 0;
case Intrinsic::setjmp:
return "_setjmp"+!TLI.usesUnderscoreSetJmp();
case Intrinsic::longjmp: