In conditional expressions e1 ? e2 : e3, cast the results of e2 and e3 to the type of the whole conditional expression.

Replaced predicates "cast", "is_true" and "is_false" by functions "sem_cast" and "bool_val".


git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1684 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e

1 files changed, 5 insertions, 0 deletions

diff --git a/Changelog b/Changelog
index 27a7a24..56fcb61 100644
--- a/Changelog
+++ b/Changelog
@@ -1,3 +1,8 @@
+- Fixed two omissions in the semantics of CompCert C (reported by Brian Campbell):
+  . Functions calls through a function pointer had undefined semantics.
+  . Conditional expressions "e1 ? e2 : e3" where e2 and e3 have different
+    types were missing a cast to their common type.
+
 - Revised and strengthened the top-level statements of semantic preservation.
   In particular, we now show:
   . backward simulation for the whole compiler without assuming