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Add in the first iteration of support for llvm/clang/lldb to allow variable per address space pointer sizes to be optimized correctly.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165726 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Micah Villmow
2012-10-11 17:21:41 +00:00
parent ebba49395c
commit f3840d2c16
40 changed files with 188 additions and 109 deletions
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7
lib/Analysis/BasicAliasAnalysis.cpp
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@ -286,7 +286,8 @@ DecomposeGEPExpression(const Value *V, int64_t &BaseOffs,
V = GEPOp->getOperand(0);
continue;
}
unsigned AS = GEPOp->getPointerAddressSpace();
// Walk the indices of the GEP, accumulating them into BaseOff/VarIndices.
gep_type_iterator GTI = gep_type_begin(GEPOp);
for (User::const_op_iterator I = GEPOp->op_begin()+1,
@ -315,7 +316,7 @@ DecomposeGEPExpression(const Value *V, int64_t &BaseOffs,
// If the integer type is smaller than the pointer size, it is implicitly
// sign extended to pointer size.
unsigned Width = cast<IntegerType>(Index->getType())->getBitWidth();
if (TD->getPointerSizeInBits() > Width)
if (TD->getPointerSizeInBits(AS) > Width)
Extension = EK_SignExt;
// Use GetLinearExpression to decompose the index into a C1*V+C2 form.
@ -344,7 +345,7 @@ DecomposeGEPExpression(const Value *V, int64_t &BaseOffs,
// Make sure that we have a scale that makes sense for this target's
// pointer size.
if (unsigned ShiftBits = 64-TD->getPointerSizeInBits()) {
if (unsigned ShiftBits = 64-TD->getPointerSizeInBits(AS)) {
Scale <<= ShiftBits;
Scale = (int64_t)Scale >> ShiftBits;
}