re PR debug/66691 (ICE on valid code at -O3 with -g enabled in simplify_subreg, at...

[gcc.git] / gcc / gimple.c

diff --git a/gcc/gimple.c b/gcc/gimple.c
index caa1cbd2d0923fa352df612acff09b1f8d9deac9..b32c6b5ada48b122ed35e9dd8fce6045c601c737 100644 (file)
--- a/gcc/gimple.c
+++ b/gcc/gimple.c
@@ -24,15 +24,8 @@ along with GCC; see the file COPYING3.  If not see
 #include "coretypes.h"
 #include "tm.h"
 #include "target.h"
-#include "hash-set.h"
-#include "machmode.h"
-#include "vec.h"
-#include "double-int.h"
-#include "input.h"
 #include "alias.h"
 #include "symtab.h"
-#include "wide-int.h"
-#include "inchash.h"
 #include "tree.h"
 #include "fold-const.h"
 #include "calls.h"
@@ -40,7 +33,6 @@ along with GCC; see the file COPYING3.  If not see
 #include "stor-layout.h"
 #include "hard-reg-set.h"
 #include "predict.h"
-#include "input.h"
 #include "function.h"
 #include "dominance.h"
 #include "cfg.h"
@@ -49,7 +41,6 @@ along with GCC; see the file COPYING3.  If not see
 #include "internal-fn.h"
 #include "tree-eh.h"
 #include "gimple-expr.h"
-#include "is-a.h"
 #include "gimple.h"
 #include "gimple-iterator.h"
 #include "gimple-walk.h"
@@ -64,9 +55,9 @@ along with GCC; see the file COPYING3.  If not see
 #include "bitmap.h"
 #include "stringpool.h"
 #include "tree-ssanames.h"
-#include "ipa-ref.h"
 #include "lto-streamer.h"
 #include "cgraph.h"
+#include "gimple-ssa.h"
 
 
 /* All the tuples have their operand vector (if present) at the very bottom
@@ -2950,3 +2941,20 @@ gimple_seq_discard (gimple_seq seq)
       ggc_free (stmt);
     }
 }
+
+/* See if STMT now calls function that takes no parameters and if so, drop
+   call arguments.  This is used when devirtualization machinery redirects
+   to __builtiln_unreacahble or __cxa_pure_virutal.  */
+
+void
+maybe_remove_unused_call_args (struct function *fn, gimple stmt)
+{
+  tree decl = gimple_call_fndecl (stmt);
+  if (TYPE_ARG_TYPES (TREE_TYPE (decl))
+      && TREE_VALUE (TYPE_ARG_TYPES (TREE_TYPE (decl))) == void_type_node
+      && gimple_call_num_args (stmt))
+    {
+      gimple_set_num_ops (stmt, 3);
+      update_stmt_fn (fn, stmt);
+    }
+}