6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-07-20 10:30:03 +00:00
Code Issues Projects Releases Wiki Activity

various cleanups suggested by Duncan

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84993 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2009-10-24 05:27:19 +00:00
parent c5af649758
commit c7b1382e35
1 changed files with 5 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
lib/Analysis/ConstantFolding.cpp
View File

@ -103,6 +103,8 @@ static bool ReadDataFromGlobal(Constant *C, uint64_t ByteOffset,
assert(ByteOffset <= TD.getTypeAllocSize(C->getType()) &&
"Out of range access");
// If this element is zero or undefined, we can just return since *CurPtr is
// zero initialized.
if (isa<ConstantAggregateZero>(C) || isa<UndefValue>(C))
return true;
@ -115,7 +117,7 @@ static bool ReadDataFromGlobal(Constant *C, uint64_t ByteOffset,
unsigned IntBytes = unsigned(CI->getBitWidth()/8);
for (unsigned i = 0; i != BytesLeft && ByteOffset != IntBytes; ++i) {
CurPtr[i] = (unsigned char)(Val >> ByteOffset * 8);
CurPtr[i] = (unsigned char)(Val >> (ByteOffset * 8));
++ByteOffset;
}
return true;
@ -130,6 +132,7 @@ static bool ReadDataFromGlobal(Constant *C, uint64_t ByteOffset,
C = ConstantExpr::getBitCast(C, Type::getInt32Ty(C->getContext()));
return ReadDataFromGlobal(C, ByteOffset, CurPtr, BytesLeft, TD);
}
return false;
}
if (ConstantStruct *CS = dyn_cast<ConstantStruct>(C)) {
@ -247,8 +250,7 @@ static Constant *FoldReinterpretLoadFromConstPtr(Constant *C,
return 0;
GlobalVariable *GV = dyn_cast<GlobalVariable>(GVal);
if (!GV || !GV->isConstant() || !GV->hasInitializer() ||
!GV->hasDefinitiveInitializer() ||
if (!GV || !GV->isConstant() || !GV->hasDefinitiveInitializer() ||
!GV->getInitializer()->getType()->isSized())
return 0;