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Remove a virtual inheritance case that clang can devirtualize fully now.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124989 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Anders Carlsson 2011-02-06 20:16:49 +00:00
parent 6475d9434f
commit 9c93d48b6b
1 changed files with 0 additions and 21 deletions
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21
lib/Target/README.txt
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@ -1866,27 +1866,6 @@ bb3: ; preds = %entry
}
//===---------------------------------------------------------------------===//
clang -O3 fails to devirtualize this virtual inheritance case: (GCC PR45875)
Looks related to PR3100
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 ();
}
//===---------------------------------------------------------------------===//
We compile this:
int foo(int a) { return (a & (~15)) / 16; }