invoke.texi: Document ARM -mcpu=cortex-m4.

2010-10-11  Paul Brook  <paul@codesourcery.com>
 
	* doc/invoke.texi: Document ARM -mcpu=cortex-m4.
	* config/arm/arm.c (all_architectures): Change v7e-m default to
	cortexm4.
	* config/arm/arm-cores.def: Add cortex-m4.
	* config/arm/arm-tune.md: Regenerate.

From-SVN: r160618

gcc/ChangeLog

+2010-10-11  Paul Brook  <paul@codesourcery.com>
+ 
+	* doc/invoke.texi: Document ARM -mcpu=cortex-m4.
+	* config/arm/arm.c (all_architectures): Change v7e-m default to
+	cortexm4.
+	* config/arm/arm-cores.def: Add cortex-m4.
+	* config/arm/arm-tune.md: Regenerate.
+
 2010-06-11  Jan Hubicka  <jh@suse.cz>
 
 	* ipa-pure-const.c (special_builtlin_state): New function.

gcc/config/arm/arm-cores.def

@@ -123,6 +123,7 @@ ARM_CORE("cortex-a8",	  cortexa8,	7A,				 FL_LDSCHED, 9e)
 ARM_CORE("cortex-a9",	  cortexa9,	7A,				 FL_LDSCHED, 9e)
 ARM_CORE("cortex-r4",	  cortexr4,	7R,				 FL_LDSCHED, 9e)
 ARM_CORE("cortex-r4f",	  cortexr4f,	7R,				 FL_LDSCHED, 9e)
+ARM_CORE("cortex-m4",	  cortexm4,	7EM,				 FL_LDSCHED, 9e)
 ARM_CORE("cortex-m3",	  cortexm3,	7M,				 FL_LDSCHED, 9e)
 ARM_CORE("cortex-m1",	  cortexm1,	6M,				 FL_LDSCHED, 9e)
 ARM_CORE("cortex-m0",	  cortexm0,	6M,				 FL_LDSCHED, 9e)

gcc/config/arm/arm-tune.md

 ;; -*- buffer-read-only: t -*-
 ;; Generated automatically by gentune.sh from arm-cores.def
 (define_attr "tune"
-	"arm2,arm250,arm3,arm6,arm60,arm600,arm610,arm620,arm7,arm7d,arm7di,arm70,arm700,arm700i,arm710,arm720,arm710c,arm7100,arm7500,arm7500fe,arm7m,arm7dm,arm7dmi,arm8,arm810,strongarm,strongarm110,strongarm1100,strongarm1110,arm7tdmi,arm7tdmis,arm710t,arm720t,arm740t,arm9,arm9tdmi,arm920,arm920t,arm922t,arm940t,ep9312,arm10tdmi,arm1020t,arm9e,arm946es,arm966es,arm968es,arm10e,arm1020e,arm1022e,xscale,iwmmxt,iwmmxt2,arm926ejs,arm1026ejs,arm1136js,arm1136jfs,arm1176jzs,arm1176jzfs,mpcorenovfp,mpcore,arm1156t2s,arm1156t2fs,cortexa5,cortexa8,cortexa9,cortexr4,cortexr4f,cortexm3,cortexm1,cortexm0"
+	"arm2,arm250,arm3,arm6,arm60,arm600,arm610,arm620,arm7,arm7d,arm7di,arm70,arm700,arm700i,arm710,arm720,arm710c,arm7100,arm7500,arm7500fe,arm7m,arm7dm,arm7dmi,arm8,arm810,strongarm,strongarm110,strongarm1100,strongarm1110,arm7tdmi,arm7tdmis,arm710t,arm720t,arm740t,arm9,arm9tdmi,arm920,arm920t,arm922t,arm940t,ep9312,arm10tdmi,arm1020t,arm9e,arm946es,arm966es,arm968es,arm10e,arm1020e,arm1022e,xscale,iwmmxt,iwmmxt2,arm926ejs,arm1026ejs,arm1136js,arm1136jfs,arm1176jzs,arm1176jzfs,mpcorenovfp,mpcore,arm1156t2s,arm1156t2fs,cortexa5,cortexa8,cortexa9,cortexr4,cortexr4f,cortexm4,cortexm3,cortexm1,cortexm0"
 	(const (symbol_ref "((enum attr_tune) arm_tune)")))

gcc/config/arm/arm.c

@@ -806,7 +806,7 @@ static const struct processors all_architectures[] =
   {"armv7-a", cortexa8,	  "7A",	 FL_CO_PROC |		  FL_FOR_ARCH7A, NULL},
   {"armv7-r", cortexr4,	  "7R",	 FL_CO_PROC |		  FL_FOR_ARCH7R, NULL},
   {"armv7-m", cortexm3,	  "7M",	 FL_CO_PROC |		  FL_FOR_ARCH7M, NULL},
-  {"armv7e-m",   cortexm3, "7EM", FL_CO_PROC |		  FL_FOR_ARCH7EM, NULL},
+  {"armv7e-m", cortexm4,  "7EM", FL_CO_PROC |		  FL_FOR_ARCH7EM, NULL},
   {"ep9312",  ep9312,     "4T",  FL_LDSCHED | FL_CIRRUS | FL_FOR_ARCH4, NULL},
   {"iwmmxt",  iwmmxt,     "5TE", FL_LDSCHED | FL_STRONG | FL_FOR_ARCH5TE | FL_XSCALE | FL_IWMMXT , NULL},
   {"iwmmxt2", iwmmxt2,     "5TE", FL_LDSCHED | FL_STRONG | FL_FOR_ARCH5TE | FL_XSCALE | FL_IWMMXT , NULL},

gcc/doc/invoke.texi

@@ -9903,7 +9903,7 @@ assembly code.  Permissible names are: @samp{arm2}, @samp{arm250},
 @samp{arm1136j-s}, @samp{arm1136jf-s}, @samp{mpcore}, @samp{mpcorenovfp},
 @samp{arm1156t2-s}, @samp{arm1156t2f-s}, @samp{arm1176jz-s}, @samp{arm1176jzf-s},
 @samp{cortex-a5}, @samp{cortex-a8}, @samp{cortex-a9},
-@samp{cortex-r4}, @samp{cortex-r4f}, @samp{cortex-m3},
+@samp{cortex-r4}, @samp{cortex-r4f}, @samp{cortex-m4}, @samp{cortex-m3},
 @samp{cortex-m1},
 @samp{cortex-m0},
 @samp{xscale}, @samp{iwmmxt}, @samp{iwmmxt2}, @samp{ep9312}.