On Sep 15, 2010, at 6:25 PM, Zhongxing Xu wrote:
> Modified: cfe/trunk/include/clang/Analysis/FlowSensitive/DataflowSolver.h
> URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Analysis/FlowSensitive/DataflowSolver.h?rev=114056&r1=114055&r2=114056&view=diff
> ==============================================================================
> --- cfe/trunk/include/clang/Analysis/FlowSensitive/DataflowSolver.h (original)
> +++ cfe/trunk/include/clang/Analysis/FlowSensitive/DataflowSolver.h Wed Sep
> 15 20:25:47 2010
> @@ -273,8 +273,11 @@
> void ProcessBlock(const CFGBlock* B, bool recordStmtValues,
> dataflow::forward_analysis_tag) {
>
> - for (StmtItr I=ItrTraits::StmtBegin(B), E=ItrTraits::StmtEnd(B);
> I!=E;++I)
> - ProcessStmt(*I, recordStmtValues, AnalysisDirTag());
> + for (StmtItr I=ItrTraits::StmtBegin(B), E=ItrTraits::StmtEnd(B);
> I!=E;++I) {
> + CFGElement E = *I;
> + if (CFGStmt S = E.getAs<CFGStmt>())
> + ProcessStmt(S, recordStmtValues, AnalysisDirTag());
> + }
>
> TF.VisitTerminator(const_cast<CFGBlock*>(B));
> }
> @@ -284,8 +287,11 @@
>
> TF.VisitTerminator(const_cast<CFGBlock*>(B));
>
> - for (StmtItr I=ItrTraits::StmtBegin(B), E=ItrTraits::StmtEnd(B);
> I!=E;++I)
> - ProcessStmt(*I, recordStmtValues, AnalysisDirTag());
> + for (StmtItr I=ItrTraits::StmtBegin(B), E=ItrTraits::StmtEnd(B);
> I!=E;++I) {
> + CFGElement E = *I;
> + if (CFGStmt S = E.getAs<CFGStmt>())
> + ProcessStmt(S, recordStmtValues, AnalysisDirTag());
> + }
> }
C++ forbids this sort of immediate redeclaration of names that were introduced
in a 'for' scope ("E" in both cases); basically, it's all treated as the same
scope according to the standard. This was causing build failures, which I
fixed for you in r114059, but please watch out for this in the future.
John.
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