[ARM] Fix PR79742 incorrect scheduler choice.

Due to an oversight, the changes to use the new CPU generation tables
forgot to handle selecting a scheduler for a CPU other than the named
CPU target.  This meant that if, say, cortex-a12 was used, the null
scheduler was chosen rather than cortex-a17's scheduler as intended.
The fix is to correctly use the 'tune for' field when generating the
target-specific data files.

This revealed a spelling mistake in the name of the tune target in
cortex-m0.small-multiply.

	PR target/79742
	* config/arm/parsecpu.awk (gen_data): Set tuning target to 'tune for'
	entry, if present.
	* config/arm/arm-cpus.in (cortex-m0plus.small-multiply): Correct
	'tune for' CPU name.
	* config/arm/arm-cpu-data.h: Regenerated.

From-SVN: r245775

gcc/ChangeLog

+2017-02-28  Richard Earnshaw  <rearnsha@arm.com>
+
+	PR target/79742
+	* config/arm/parsecpu.awk (gen_data): Set tuning target to 'tune for'
+	entry, if present.
+	* config/arm/arm-cpus.in (cortex-m0plus.small-multiply): Correct
+	'tune for' CPU name.
+	* config/arm/arm-cpu-data.h: Regenerated.
+
 2017-02-28  Richard Biener  <rguenther@suse.de>
 
 	PR tree-optimization/79732

gcc/config/arm/arm-cpus.in

@@ -814,7 +814,7 @@ end cpu cortex-m0.small-multiply
 
 begin cpu cortex-m0plus.small-multiply
  cname cortexm0plussmallmultiply
- tune for cortexm0-plus
+ tune for cortex-m0plus
  tune flags LDSCHED SMALLMUL
  architecture armv6-m
  costs v6m

gcc/config/arm/parsecpu.awk

@@ -124,7 +124,16 @@ function gen_data () {
 
     for (n = 1; n <= ncpus; n++) {
 	print "  {"
-	print "    \"" cpus[n] "\", TARGET_CPU_" cpu_cnames[cpus[n]] ","
+	print "    \"" cpus[n] "\","
+	if (cpus[n] in cpu_tune_for) {
+	    if (! (cpu_tune_for[cpus[n]] in cpu_cnames)) {
+		fatal("unknown \"tune for\" target " cpu_tune_for[cpus[n]] \
+		      " for CPU " cpus[n])
+	    }
+	    print "    TARGET_CPU_" cpu_cnames[cpu_tune_for[cpus[n]]] ","
+	} else {
+	    print "    TARGET_CPU_" cpu_cnames[cpus[n]] ","
+	}
 	if (cpus[n] in cpu_tune_flags) {
 	    print "    (" cpu_tune_flags[cpus[n]] "),"
 	} else print "    0,"
@@ -156,7 +165,7 @@ function gen_data () {
 	print "  {"
 	if (! (arch_tune_for[archs[n]] in cpu_cnames)) {
 	    fatal("unknown \"tune for\" target " arch_tune_for[archs[n]] \
-		  "for architecture " archs[n])
+		  " for architecture " archs[n])
 	}
 	print "    \"" archs[n] \
 	    "\", TARGET_CPU_" cpu_cnames[arch_tune_for[archs[n]]] ","