gcc/

	* config/mips/mips.c (mips_set_mips16_mode) Say sorry for hard-float
	MIPS16 code unless using o32 or o64.  

gcc/testsuite/
	* gcc.target/mips/mips.exp (setup_mips_tests): Set mips_mips16.
	(dg-mips-options): Skip tests that specify an ABI other than o32
	and o64 if generating MIPS16 hard-float code.

From-SVN: r129530

gcc/ChangeLog

 2007-10-21  Richard Sandiford  <rsandifo@nildram.co.uk>
 
+	* config/mips/mips.c (mips_set_mips16_mode) Say sorry for hard-float
+	MIPS16 code unless using o32 or o64.  
+
+2007-10-21  Richard Sandiford  <rsandifo@nildram.co.uk>
+
 	* config/mips/mips.c (mips_cannot_change_mode_class): Don't check
 	for modes smaller than 4 bytes.
 	* config/mips/mips.md (*movhi_internal, *movqi_internal): Remove

gcc/config/mips/mips.c

@@ -11632,6 +11632,9 @@ mips_set_mips16_mode (int mips16_p)
 
       if (flag_pic || TARGET_ABICALLS)
 	sorry ("MIPS16 PIC");
+
+      if (TARGET_HARD_FLOAT_ABI && !TARGET_OLDABI)
+	sorry ("hard-float MIPS16 code for ABIs other than o32 and o64");
     }
   else
     {

gcc/testsuite/ChangeLog

+2007-10-21  Richard Sandiford  <rsandifo@nildram.co.uk>
+
+	* gcc.target/mips/mips.exp (setup_mips_tests): Set mips_mips16.
+	(dg-mips-options): Skip tests that specify an ABI other than o32
+	and o64 if generating MIPS16 hard-float code.
+
 2007-10-21  Ira Rosen  <irar@il.ibm.com>
             Revital Eres  <eres@il.ibm.com>
 

gcc/testsuite/gcc.target/mips/mips.exp

@@ -31,6 +31,7 @@ load_lib gcc-dg.exp
 #    $mips_isa:		 the ISA level specified by __mips
 #    $mips_isa_rev:	 the ISA revision specified by __mips_isa_rev
 #    $mips_arch:	 the architecture specified by _MIPS_ARCH
+#    $mips_mips16:	 true if MIPS16 output is selected
 #    $mips_gp:		 the number of bytes in a general register
 #    $mips_fp:		 the number of bytes in a floating-point register
 #    $mips_float:	 "hard" or "soft"
@@ -48,6 +49,7 @@ proc setup_mips_tests {} {
     global mips_isa
     global mips_isa_rev
     global mips_arch
+    global mips_mips16
     global mips_gp
     global mips_fp
     global mips_float
@@ -75,6 +77,9 @@ proc setup_mips_tests {} {
 	int isa_rev = 1;
 	#endif
 	const char *arch = _MIPS_ARCH;
+	#ifdef __mips16
+	int mips16 = 1;
+	#endif
 	#ifdef __mips64
 	int gp = 64;
 	#else
@@ -105,6 +110,7 @@ proc setup_mips_tests {} {
     regexp {isa = ([^;]*)} $output dummy mips_isa
     regexp {isa_rev = ([^;]*)} $output dummy mips_isa_rev
     regexp {arch = "([^"]*)} $output dummy mips_arch
+    set mips_mips16 [regexp {mips16 = 1} $output]
     regexp {gp = ([^;]*)} $output dummy mips_gp
     regexp {fp = ([^;]*)} $output dummy mips_fp
     regexp {float = "([^"]*)} $output dummy mips_float
@@ -145,7 +151,9 @@ proc setup_mips_tests {} {
 #
 #    -mabi=*
 #	Force a particular ABI.  Skip the test if the multilib flags
-#	force a specific ABI or a different register size.
+#	force a specific ABI or a different register size.  If testing
+#	MIPS16 multilibs, try to force -msoft-float for ABIs other than
+#	o32 and o64, and skip the test if this is not possible.
 #
 #    -march=*
 #    -mips*
@@ -183,6 +191,7 @@ proc dg-mips-options {args} {
     global mips_isa
     global mips_isa_rev
     global mips_arch
+    global mips_mips16
     global mips_gp
     global mips_fp
     global mips_float
@@ -205,6 +214,15 @@ proc dg-mips-options {args} {
 	if {[string match -mpaired-single $flag]
 	    && [lsearch $flags -mfp*] < 0} {
 	    append flags " -mfp64"
+	} elseif {[regexp -- {^-mabi=(.*)} $flag dummy abi]
+		  && $mips_mips16
+		  && $abi != "32"
+		  && $abi != "o64"} {
+	    if {[lsearch $flags -mhard-float] >= 0} {
+		set matches 0
+	    } else {
+		append flags " -msoft-float"
+	    }
 	}
     }
     foreach flag $flags {