Patch for illegal operands in mips assembler

["H . J . Lu" <hjl at lucon dot org>]

For this code:

--
# Source file used to test illegal operands.

foo:
        move    1,2
        c.eq.s  1,2
---

The current mips assembler gives

illegal.s: Assembler messages:
illegal.s:4: Error: illegal operands `move'
illegal.s:5: Error: opcode not supported on this processor: R3000 (MIPS1) `c.eq.s'

instead of

illegal.s: Assembler messages:
illegal.s:4: Error: illegal operands `move 1,2'
illegal.s:5: Error: illegal operands `c.eq.s 1,2'

The error message doesn't make much senses and misleading. I
checked in the following testcase.


H.J.
---
2001-06-08  H.J. Lu  <hjl@gnu.org>

	* gas/mips/illegal.s: New file.
	* gas/mips/illegal.l: Likewise.

	* gas/elf/elf.exp (run_list_test): New.
	Run illegal with run_list_test.

Index: gas/mips/mips.exp
===================================================================
RCS file: /work/cvs/gnu/binutils/gas/testsuite/gas/mips/mips.exp,v
retrieving revision 1.1.1.10
diff -u -p -r1.1.1.10 mips.exp
--- gas/mips/mips.exp	2001/06/07 17:35:41	1.1.1.10
+++ gas/mips/mips.exp	2001/06/09 04:50:35
@@ -1,6 +1,20 @@
 #
 # Some generic MIPS tests
 #
+
+proc run_list_test { name opts } {
+    global srcdir subdir
+    set testname "MIPS $name"
+    set file $srcdir/$subdir/$name
+    gas_run ${name}.s $opts ">&dump.out"
+    if { [regexp_diff "dump.out" "${file}.l"] } then {
+	fail $testname
+	verbose "output is [file_contents "dump.out"]" 2
+	return
+    }
+    pass $testname
+}
+
 if { [istarget mips*-*-*] } then {
     set no_mips16 0
     set svr4pic [expr [istarget *-*-elf*] || [istarget *-*-irix5*] || [istarget *-*-irix6* ] || [istarget *-*-linux*] ]
@@ -94,6 +108,8 @@ if { [istarget mips*-*-*] } then {
     run_dump_test "sync"
     run_dump_test "mips32"
     run_dump_test "mips64"
+
+    run_list_test "illegal" ""
 
     if $svr4pic {
 	# Make sure that -mcpu=FOO and -mFOO are equivalent.  Assemble a file
--- /dev/null	Fri Mar 23 20:37:44 2001
+++ gas/mips/illegal.s	Fri Jun  8 21:41:42 2001
@@ -0,0 +1,5 @@
+# Source file used to test illegal operands.
+
+foo:
+	move	1,2
+	c.eq.s	1,2
--- /dev/null	Fri Mar 23 20:37:44 2001
+++ gas/mips/illegal.l	Fri Jun  8 21:42:04 2001
@@ -0,0 +1,3 @@
+.*: Assembler messages:
+.*:4: Error: illegal operands `move 1,2'
+.*:5: Error: illegal operands `c.eq.s 1,2'