[llvm-commits] [llvm] r49373 - in /llvm/trunk: include/llvm/Function.h lib/VMCore/Function.cpp

[Duncan Sands]

Author: baldrick
Date: Tue Apr  8 02:23:58 2008
New Revision: 49373

URL: http://llvm.org/viewvc/llvm-project?rev=49373&view=rev
Log:
Convenience method for setting the nounwind
attribute for a function.

Modified:
    llvm/trunk/include/llvm/Function.h
    llvm/trunk/lib/VMCore/Function.cpp

Modified: llvm/trunk/include/llvm/Function.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Function.h?rev=49373&r1=49372&r2=49373&view=diff

==============================================================================
--- llvm/trunk/include/llvm/Function.h (original)
+++ llvm/trunk/include/llvm/Function.h Tue Apr  8 02:23:58 2008
@@ -178,6 +178,7 @@
 
   /// @brief Determine if the function cannot return.
   bool doesNotReturn() const { return paramHasAttr(0, ParamAttr::NoReturn); }
+  void setDoesNotThrow(bool doesNotThrow = true);
 
   /// @brief Determine if the function cannot unwind.
   bool doesNotThrow() const {

Modified: llvm/trunk/lib/VMCore/Function.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/VMCore/Function.cpp?rev=49373&r1=49372&r2=49373&view=diff

==============================================================================
--- llvm/trunk/lib/VMCore/Function.cpp (original)
+++ llvm/trunk/lib/VMCore/Function.cpp Tue Apr  8 02:23:58 2008
@@ -219,6 +219,15 @@
   BasicBlocks.clear();    // Delete all basic blocks...
 }
 
+void Function::setDoesNotThrow(bool doesNotThrow) {
+  PAListPtr PAL = getParamAttrs();
+  if (doesNotThrow)
+    PAL = PAL.addAttr(0, ParamAttr::NoUnwind);
+  else
+    PAL = PAL.removeAttr(0, ParamAttr::NoUnwind);
+  setParamAttrs(PAL);
+}
+
 // Maintain the collector name for each function in an on-the-side table. This
 // saves allocating an additional word in Function for programs which do not use
 // GC (i.e., most programs) at the cost of increased overhead for clients which