* config/msp430/msp430.c (msp430_handle_option): Move function

	to msp430-common.c
	(msp430_option_override): Simplify mcu and mcpu option handling.
	(msp430_is_f5_mcu): Rename to msp430_use_f5_series_hwmult.  Add
	support for -mhwmult command line option.
	(has_32bit_hwmult): Rename to use_32bit_hwmult.  Add support for
	-mhwmult command line option.
	(msp430_hwmult_enabled): Delete.
	(msp43o_output_labelref): Add support for -mhwmult command line
	option.
	* config/msp430/msp430.md (mulhisi3, umulhisi3, mulsidi3)
	(umulsidi3): Likewise.
	* config/msp430/msp430.opt (mmcu): Add Report attribute.
	(mcpu, mlarge, msmall): Likewise.
	(mhwmult): New option.
	* config/msp430/msp430-protos.h (msp430_hwmult_enabled): Remove
	prototype.
	(msp430_is_f5_mcu): Remove prototype.
	(msp430_use_f5_series_hwmult): Add prototype.
	* config/msp430/msp430-opts.h: New file.
	* common/config/msp430: New directory.
	* common/config/msp430/msp430-common.c: New file.
	* config.gcc (msp430): Remove target_has_targetm_common.
	* doc/invoke.texi: Document -mhwmult command line option.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@209685 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 91 insertions, 0 deletions

diff --git a/gcc/common/config/msp430/msp430-common.c b/gcc/common/config/msp430/msp430-common.c
new file mode 100644
index 00000000000..fc2c1f27d45
--- /dev/null
+++ b/gcc/common/config/msp430/msp430-common.c
@@ -0,0 +1,91 @@
+/* Common hooks for Texas Instruments MSP430.
+   Copyright (C) 2014 Free Software Foundation, Inc.
+
+   This file is part of GCC.
+
+   GCC is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   GCC is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with GCC; see the file COPYING3.  If not see
+   <http://www.gnu.org/licenses/>.  */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "diagnostic-core.h"
+#include "tm.h"
+#include "common/common-target.h"
+#include "common/common-target-def.h"
+#include "opts.h"
+#include "flags.h"
+
+/* Handle -mcpu= and -mmcu= here.  We want to ensure that only one
+   of these two options - the last specified on the command line -
+   is passed on to the msp430 backend.  */
+
+static bool
+msp430_handle_option (struct gcc_options *opts ATTRIBUTE_UNUSED,
+		      struct gcc_options *opts_set ATTRIBUTE_UNUSED,
+		      const struct cl_decoded_option *decoded,
+		      location_t loc ATTRIBUTE_UNUSED)
+{
+  switch (decoded->opt_index)
+    {
+    case OPT_mcpu_:
+      if (strcasecmp (decoded->arg, "msp430x") == 0
+	  || strcasecmp (decoded->arg, "msp430xv2") == 0
+	  || strcasecmp (decoded->arg, "430x") == 0
+	  || strcasecmp (decoded->arg, "430xv2") == 0)
+	{
+	  target_cpu = "msp430x";
+	  target_mcu = NULL;
+	}
+      else if (strcasecmp (decoded->arg, "msp430") == 0
+	       || strcasecmp (decoded->arg, "430") == 0)
+	{
+	  target_cpu = "msp430";
+	  target_mcu = NULL;
+	}
+      else
+	{
+	  error ("unrecognised argument of -mcpu: %s", decoded->arg);
+	  return false;
+	}
+      break;
+
+    case OPT_mmcu_:
+      /* For backwards compatibility we recognise two generic MCU
+	 430X names.  However we want to be able to generate special C
+	 preprocessor defines for them, which is why we set target_mcu
+	 to NULL.  */
+      if (strcasecmp (decoded->arg, "msp430") == 0)
+	{
+	  target_cpu = "msp430";
+	  target_mcu = NULL;
+	}
+      else if (strcasecmp (decoded->arg, "msp430x") == 0
+	       || strcasecmp (decoded->arg, "msp430xv2") == 0)
+	{
+	  target_cpu = "msp430x";
+	  target_mcu = NULL;
+	}
+      else
+	target_cpu = NULL;
+      break;
+    }
+      
+  return true;
+}
+
+#undef  TARGET_HANDLE_OPTION
+#define TARGET_HANDLE_OPTION			msp430_handle_option
+
+struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER;