6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-07-25 13:24:46 +00:00
Code Issues Projects Releases Wiki Activity

convert a bunch of callers from DataLayout::getIndexedOffset() to GEP::accumulateConstantOffset().

Browse Source 
The later API is nicer than the former, and is correct regarding wrap-around offsets (if anyone cares).
There are a few more places left with duplicated code, which I'll remove soon.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171259 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nuno Lopes
2012-12-30 16:25:48 +00:00
parent 0d80c9c8c7
commit 98281a2050
8 changed files with 30 additions and 83 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
lib/Transforms/IPO/MergeFunctions.cpp
View File

@@ -346,13 +346,11 @@ bool FunctionComparator::isEquivalentGEP(const GEPOperator *GEP1,
const GEPOperator *GEP2) {
// When we have target data, we can reduce the GEP down to the value in bytes
// added to the address.
if (TD && GEP1->hasAllConstantIndices() && GEP2->hasAllConstantIndices()) {
SmallVector<Value *, 8> Indices1(GEP1->idx_begin(), GEP1->idx_end());
SmallVector<Value *, 8> Indices2(GEP2->idx_begin(), GEP2->idx_end());
uint64_t Offset1 = TD->getIndexedOffset(GEP1->getPointerOperandType(),
Indices1);
uint64_t Offset2 = TD->getIndexedOffset(GEP2->getPointerOperandType(),
Indices2);
unsigned BitWidth = TD ? TD->getPointerSizeInBits() : 1;
APInt Offset1(BitWidth, 0), Offset2(BitWidth, 0);
if (TD &&
GEP1->accumulateConstantOffset(*TD, Offset1) &&
GEP2->accumulateConstantOffset(*TD, Offset2)) {
return Offset1 == Offset2;
}