PR c++/68795: fix uninitialized close_paren_loc in cp_parser_postfix_expression

[gcc.git] / gcc / explow.c

diff --git a/gcc/explow.c b/gcc/explow.c
index bd342c106f17ef81e7192528311c63f0a30470bb..496e02ab8b3f11a6e9f42e67108141c8ed56e086 100644 (file)
--- a/gcc/explow.c
+++ b/gcc/explow.c
@@ -1,5 +1,5 @@
 /* Subroutines for manipulating rtx's in semantically interesting ways.
-   Copyright (C) 1987-2015 Free Software Foundation, Inc.
+   Copyright (C) 1987-2016 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -21,31 +21,21 @@ along with GCC; see the file COPYING3.  If not see
 #include "config.h"
 #include "system.h"
 #include "coretypes.h"
-#include "tm.h"
-#include "diagnostic-core.h"
+#include "target.h"
+#include "function.h"
 #include "rtl.h"
-#include "alias.h"
 #include "tree.h"
-#include "stor-layout.h"
 #include "tm_p.h"
-#include "flags.h"
-#include "except.h"
-#include "function.h"
-#include "insn-config.h"
 #include "expmed.h"
+#include "optabs.h"
+#include "emit-rtl.h"
+#include "recog.h"
+#include "diagnostic-core.h"
+#include "stor-layout.h"
+#include "except.h"
 #include "dojump.h"
 #include "explow.h"
-#include "calls.h"
-#include "emit-rtl.h"
-#include "varasm.h"
-#include "stmt.h"
 #include "expr.h"
-#include "insn-codes.h"
-#include "optabs.h"
-#include "libfuncs.h"
-#include "recog.h"
-#include "langhooks.h"
-#include "target.h"
 #include "common/common-target.h"
 #include "output.h"
 
@@ -830,8 +820,10 @@ promote_decl_mode (const_tree decl, int *punsignedp)
   machine_mode mode = DECL_MODE (decl);
   machine_mode pmode;
 
-  if (TREE_CODE (decl) == RESULT_DECL
-      || TREE_CODE (decl) == PARM_DECL)
+  if (TREE_CODE (decl) == RESULT_DECL && !DECL_BY_REFERENCE (decl))
+    pmode = promote_function_mode (type, mode, &unsignedp,
+                                   TREE_TYPE (current_function_decl), 1);
+  else if (TREE_CODE (decl) == RESULT_DECL || TREE_CODE (decl) == PARM_DECL)
     pmode = promote_function_mode (type, mode, &unsignedp,
                                    TREE_TYPE (current_function_decl), 2);
   else
@@ -842,6 +834,46 @@ promote_decl_mode (const_tree decl, int *punsignedp)
   return pmode;
 }
 
+/* Return the promoted mode for name.  If it is a named SSA_NAME, it
+   is the same as promote_decl_mode.  Otherwise, it is the promoted
+   mode of a temp decl of same type as the SSA_NAME, if we had created
+   one.  */
+
+machine_mode
+promote_ssa_mode (const_tree name, int *punsignedp)
+{
+  gcc_assert (TREE_CODE (name) == SSA_NAME);
+
+  /* Partitions holding parms and results must be promoted as expected
+     by function.c.  */
+  if (SSA_NAME_VAR (name)
+      && (TREE_CODE (SSA_NAME_VAR (name)) == PARM_DECL
+         || TREE_CODE (SSA_NAME_VAR (name)) == RESULT_DECL))
+    {
+      machine_mode mode = promote_decl_mode (SSA_NAME_VAR (name), punsignedp);
+      if (mode != BLKmode)
+       return mode;
+    }
+
+  tree type = TREE_TYPE (name);
+  int unsignedp = TYPE_UNSIGNED (type);
+  machine_mode mode = TYPE_MODE (type);
+
+  /* Bypass TYPE_MODE when it maps vector modes to BLKmode.  */
+  if (mode == BLKmode)
+    {
+      gcc_assert (VECTOR_TYPE_P (type));
+      mode = type->type_common.mode;
+    }
+
+  machine_mode pmode = promote_mode (type, mode, &unsignedp);
+  if (punsignedp)
+    *punsignedp = unsignedp;
+
+  return pmode;
+}
+
+
 \f
 /* Controls the behaviour of {anti_,}adjust_stack.  */
 static bool suppress_reg_args_size;
@@ -1858,7 +1890,7 @@ hard_libcall_value (machine_mode mode, rtx fun)
 }
 
 /* Look up the tree code for a given rtx code
-   to provide the arithmetic operation for REAL_ARITHMETIC.
+   to provide the arithmetic operation for real_arithmetic.
    The function returns an int because the caller may not know
    what `enum tree_code' means.  */