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DebugInfo: New metadata representation for global variables.

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This patch reverses the edge from DIGlobalVariable to GlobalVariable.
This will allow us to more easily preserve debug info metadata when
manipulating global variables.

Fixes PR30362. A program for upgrading test cases is attached to that
bug.

Differential Revision: http://reviews.llvm.org/D20147

llvm-svn: 281284
This commit is contained in:
Peter Collingbourne
2016-09-13 01:12:59 +00:00
parent efc0667583
commit d4135bbc30
159 changed files with 922 additions and 796 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
llvm/lib/IR/DIBuilder.cpp
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@@ -535,13 +535,13 @@ static void checkGlobalVariableScope(DIScope *Context) {
DIGlobalVariable *DIBuilder::createGlobalVariable(
DIScope *Context, StringRef Name, StringRef LinkageName, DIFile *F,
unsigned LineNumber, DIType *Ty, bool isLocalToUnit, Constant *Val,
unsigned LineNumber, DIType *Ty, bool isLocalToUnit, DIExpression *Expr,
MDNode *Decl) {
checkGlobalVariableScope(Context);
auto *N = DIGlobalVariable::getDistinct(
VMContext, cast_or_null<DIScope>(Context), Name, LinkageName, F,
LineNumber, Ty, isLocalToUnit, true, Val,
LineNumber, Ty, isLocalToUnit, true, Expr,
cast_or_null<DIDerivedType>(Decl));
AllGVs.push_back(N);
return N;
@@ -549,13 +549,13 @@ DIGlobalVariable *DIBuilder::createGlobalVariable(
DIGlobalVariable *DIBuilder::createTempGlobalVariableFwdDecl(
DIScope *Context, StringRef Name, StringRef LinkageName, DIFile *F,
unsigned LineNumber, DIType *Ty, bool isLocalToUnit, Constant *Val,
unsigned LineNumber, DIType *Ty, bool isLocalToUnit, DIExpression *Expr,
MDNode *Decl) {
checkGlobalVariableScope(Context);
return DIGlobalVariable::getTemporary(
VMContext, cast_or_null<DIScope>(Context), Name, LinkageName, F,
LineNumber, Ty, isLocalToUnit, false, Val,
LineNumber, Ty, isLocalToUnit, false, Expr,
cast_or_null<DIDerivedType>(Decl))
.release();
}