diff options
| author | Eli Friedman <eli.friedman@gmail.com> | 2012-08-31 00:14:07 +0000 |
|---|---|---|
| committer | Eli Friedman <eli.friedman@gmail.com> | 2012-08-31 00:14:07 +0000 |
| commit | a6c66cedc022c9e5d45a937d6b8cff491a6bf81b (patch) | |
| tree | 22786c2c1573674a6e48ac4e7b0af5d7ad453d9a /lib/CodeGen/CGExpr.cpp | |
| parent | 918546c584c91ee917c919c967d7d73cecd295dc (diff) | |
Change the representation of builtin functions in the AST
(__builtin_* etc.) so that it isn't possible to take their address.
Specifically, introduce a new type to represent a reference to a builtin
function, and a new cast kind to convert it to a function pointer in the
operand of a call. Fixes PR13195.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162962 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/CGExpr.cpp')
| -rw-r--r-- | lib/CodeGen/CGExpr.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/CodeGen/CGExpr.cpp b/lib/CodeGen/CGExpr.cpp index e7dbe791c9..e17494aac8 100644 --- a/lib/CodeGen/CGExpr.cpp +++ b/lib/CodeGen/CGExpr.cpp @@ -2396,7 +2396,10 @@ LValue CodeGenFunction::EmitCastLValue(const CastExpr *E) { case CK_Dependent: llvm_unreachable("dependent cast kind in IR gen!"); - + + case CK_BuiltinFnToFnPtr: + llvm_unreachable("builtin functions are handled elsewhere"); + // These two casts are currently treated as no-ops, although they could // potentially be real operations depending on the target's ABI. case CK_NonAtomicToAtomic: |