Author: mrs
Date: Mon Dec 14 18:59:40 2009
New Revision: 91382
URL: http://llvm.org/viewvc/llvm-project?rev=91382&view=rev
Log:
Ensure we preserve line information for each trap for
-fcatch-undefined-behavior if we aren't optimizing. WIP.
Modified:
cfe/trunk/lib/CodeGen/CGExpr.cpp
Modified: cfe/trunk/lib/CodeGen/CGExpr.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGExpr.cpp?rev=91382&r1=91381&r2=91382&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CGExpr.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGExpr.cpp Mon Dec 14 18:59:40 2009
@@ -18,6 +18,7 @@
#include "clang/AST/ASTContext.h"
#include "clang/AST/DeclObjC.h"
#include "llvm/Intrinsics.h"
+#include "clang/CodeGen/CodeGenOptions.h"
#include "llvm/Target/TargetData.h"
using namespace clang;
using namespace CodeGen;
@@ -1014,7 +1015,14 @@
}
llvm::BasicBlock*CodeGenFunction::getTrapBB() {
- if (TrapBB)
+ const CodeGenOptions &GCO = CGM.getCodeGenOpts();
+
+ // If we are not optimzing, don't collapse all calls to trap in the function
+ // to the same call, that way, in the debugger they can see which operation
+ // did in fact fail. If we are optimizing, we collpase all call to trap down
+ // to just one per function to save on codesize.
+ if (GCO.OptimizationLevel
+ && TrapBB)
return TrapBB;
llvm::BasicBlock *Cont = 0;
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