6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-13 20:32:21 +00:00
Code Issues Projects Releases Wiki Activity

Add comment

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@712 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2001-10-03 19:35:57 +00:00
parent 8921983734
commit 43efcbf561
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
lib/AsmParser/llvmAsmParser.y
View File

@ -456,6 +456,12 @@ static bool setValueName(Value *V, char *NameStr) {
// cerr << "Type: " << Ty->getDescription() << " != "
// << cast<const Type>(V)->getDescription() << "!\n";
} else if (GlobalVariable *EGV = dyn_cast<GlobalVariable>(Existing)) {
// We are allowed to redefine a global variable in two circumstances:
// 1. If at least one of the globals is uninitialized or
// 2. If both initializers have the same value.
//
// This can only be done if the const'ness of the vars is the same.
//
if (GlobalVariable *GV = dyn_cast<GlobalVariable>(V)) {
if (EGV->isConstant() == GV->isConstant() &&
(!EGV->hasInitializer() || !GV->hasInitializer() ||