6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-07-19 03:29:22 +00:00
Code Issues Projects Releases Wiki Activity

Implement support for long GEP indices on 32-bit archs and support for

Browse Source 
int GEP indices on 64-bit archs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19354 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-01-07 21:56:57 +00:00
parent fd8c39b773
commit 7cc4777a26
2 changed files with 15 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
View File

@ -529,6 +529,7 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) {
break; break;
case ISD::ZERO_EXTEND: case ISD::ZERO_EXTEND:
case ISD::SIGN_EXTEND: case ISD::SIGN_EXTEND:
case ISD::TRUNCATE:
case ISD::FP_EXTEND: case ISD::FP_EXTEND:
case ISD::FP_ROUND: case ISD::FP_ROUND:
switch (getTypeAction(Node->getOperand(0).getValueType())) { switch (getTypeAction(Node->getOperand(0).getValueType())) {

17
lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
View File

@ -477,9 +477,20 @@ void SelectionDAGLowering::visitGetElementPtr(User &I) {
if (!isa<Constant>(Idx) || !cast<Constant>(Idx)->isNullValue()) { if (!isa<Constant>(Idx) || !cast<Constant>(Idx)->isNullValue()) {
// N = N + Idx * ElementSize; // N = N + Idx * ElementSize;
uint64_t ElementSize = TD.getTypeSize(Ty); uint64_t ElementSize = TD.getTypeSize(Ty);
SDOperand IdxN = getValue(Idx); SDOperand IdxN = getValue(Idx), Scale = getIntPtrConstant(ElementSize);
IdxN = DAG.getNode(ISD::MUL, N.getValueType(), IdxN,
getIntPtrConstant(ElementSize)); // If the index is smaller or larger than intptr_t, truncate or extend
// it.
if (IdxN.getValueType() < Scale.getValueType()) {
if (Idx->getType()->isSigned())
IdxN = DAG.getNode(ISD::SIGN_EXTEND, Scale.getValueType(), IdxN);
else
IdxN = DAG.getNode(ISD::ZERO_EXTEND, Scale.getValueType(), IdxN);
} else if (IdxN.getValueType() > Scale.getValueType())
IdxN = DAG.getNode(ISD::TRUNCATE, Scale.getValueType(), IdxN);
IdxN = DAG.getNode(ISD::MUL, N.getValueType(), IdxN, Scale);
N = DAG.getNode(ISD::ADD, N.getValueType(), N, IdxN); N = DAG.getNode(ISD::ADD, N.getValueType(), N, IdxN);
} }
} }