commit 11b80a8e1c76c1ce25f471db900df626086fb39a
author Dale Johannesen <dalej@apple.com> Mon Apr 07 00:08:48 2008 +0000
committer Dale Johannesen <dalej@apple.com> Mon Apr 07 00:08:48 2008 +0000
tree af92faa075fc2b012cbca7b4e5183a5912efa64f
parent e64d248b638831e0af4477fc04d42777445c424e

Mark calls to llvm.stacksave, llvm.stackrestore as
nounwind.  When such calls are inlined into something
else that is invoked, they were getting changed to invokes,
which is badness.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49299 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/Utils/InlineFunction.cpp

diff --git a/lib/Transforms/Utils/InlineFunction.cpp b/lib/Transforms/Utils/InlineFunction.cpp
index 2e34984..5e56c4e 100644
--- a/lib/Transforms/Utils/InlineFunction.cpp
+++ b/lib/Transforms/Utils/InlineFunction.cpp
@@ -368,12 +368,14 @@
     // Insert the llvm.stacksave.
     CallInst *SavedPtr = CallInst::Create(StackSave, "savedstack", 
                                           FirstNewBlock->begin());
+    SavedPtr->setDoesNotThrow();
     if (CG) CallerNode->addCalledFunction(SavedPtr, StackSaveCGN);
       
     // Insert a call to llvm.stackrestore before any return instructions in the
     // inlined function.
     for (unsigned i = 0, e = Returns.size(); i != e; ++i) {
       CallInst *CI = CallInst::Create(StackRestore, SavedPtr, "", Returns[i]);
+      CI->setDoesNotThrow();
       if (CG) CallerNode->addCalledFunction(CI, StackRestoreCGN);
     }
 
@@ -386,7 +388,8 @@
       for (Function::iterator BB = FirstNewBlock, E = Caller->end();
            BB != E; ++BB)
         if (UnwindInst *UI = dyn_cast<UnwindInst>(BB->getTerminator())) {
-          CallInst::Create(StackRestore, SavedPtr, "", UI);
+          CallInst *CI = CallInst::Create(StackRestore, SavedPtr, "", UI);
+          CI->setDoesNotThrow();
           ++NumStackRestores;
         }
     }