[cfe-commits] r77254 - in /cfe/trunk: lib/Sema/SemaDecl.cpp test/Sema/return.c

[Mike Stump]

Author: mrs
Date: Mon Jul 27 16:45:16 2009
New Revision: 77254

URL: http://llvm.org/viewvc/llvm-project?rev=77254&view=rev
Log:
Add knowledge about _longjmp being noreturn.

Modified:
    cfe/trunk/lib/Sema/SemaDecl.cpp
    cfe/trunk/test/Sema/return.c

Modified: cfe/trunk/lib/Sema/SemaDecl.cpp
URL: 
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaDecl.cpp?rev=77254&r1=77253&r2=77254&view=diff

==============================================================================
--- cfe/trunk/lib/Sema/SemaDecl.cpp (original)
+++ cfe/trunk/lib/Sema/SemaDecl.cpp Mon Jul 27 16:45:16 2009
@@ -3705,8 +3705,8 @@
     if (!FD->getAttr<FormatAttr>())
       FD->addAttr(::new (Context) FormatAttr("printf", 2,
                                              Name->isStr("vasprintf") ? 0 : 
3));
-  } else if (Name->isStr("longjmp") &&
-             !FD->hasAttr<NoReturnAttr>())
+  } else if ((Name->isStr("longjmp") || Name->isStr("_longjmp"))
+             && !FD->hasAttr<NoReturnAttr>())
     FD->addAttr(::new (Context) NoReturnAttr());
 }
 

Modified: cfe/trunk/test/Sema/return.c
URL: 
http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Sema/return.c?rev=77254&r1=77253&r2=77254&view=diff

==============================================================================
--- cfe/trunk/test/Sema/return.c (original)
+++ cfe/trunk/test/Sema/return.c Mon Jul 27 16:45:16 2009
@@ -200,5 +200,8 @@
 #include <setjmp.h>
 jmp_buf test30_j;
 int test30() {
-  longjmp(test30_j, 1);
+  if (j)
+    longjmp(test30_j, 1);
+  else
+    _longjmp(test30_j, 1);
 }


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