X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FTarget%2FREADME.txt;h=6d42d812a00bf3753843531996f3021a0d60c792;hb=867fe8570f299a058f155f98646d85cabc27155b;hp=32e7385d23a793c944ee40661c318af74ae48f17;hpb=313a94c3d0bf0f0a6e0f8083d09f2fb3add9753f;p=oota-llvm.git

diff --git a/lib/Target/README.txt b/lib/Target/README.txt
index 32e7385d23a..6d42d812a00 100644
--- a/lib/Target/README.txt
+++ b/lib/Target/README.txt
@@ -1340,12 +1340,6 @@ void foo (int a, struct T b)
 
 simplifylibcalls should do several optimizations for strspn/strcspn:
 
-strcspn(x, "") -> strlen(x)
-strcspn("", x) -> 0
-strspn("", x) -> 0
-strspn(x, "") -> strlen(x)
-strspn(x, "a") -> strchr(x, 'a')-x
-
 strcspn(x, "a") -> inlined loop for up to 3 letters (similarly for strspn):
 
 size_t __strcspn_c3 (__const char *__s, int __reject1, int __reject2,
@@ -1969,3 +1963,23 @@ bb3:            ; preds = %entry
         ret i32 %b
 }
 //===---------------------------------------------------------------------===//
+
+clang -O3 fails to devirtualize this virtual inheritance case: (GCC PR45875)
+
+struct c1 {};
+struct c10 : c1{
+  virtual void foo ();
+};
+struct c11 : c10, c1{
+  virtual void f6 ();
+};
+struct c28 : virtual c11{
+  void f6 ();
+};
+void check_c28 () {
+  c28 obj;
+  c11 *ptr = &obj;
+  ptr->f6 ();
+}
+
+//===---------------------------------------------------------------------===//