X86: Allow additional ISAs for IAMCU in assembler

Originally only Pentium integer instructions are allowed for IAMCU.
This patch removes such a restriction.  For example, 387 and SSE2
instructions can be enabled by passing "-march=iamcu+sse2+387" to
assembler.

gas/

	* config/tc-i386.c (valid_iamcu_cpu_flags): Removed.
	(set_cpu_arch): Updated.
	(md_parse_option): Likewise.
	* testsuite/gas/i386/i386.exp: Run iamcu-4 and iamcu-5.  Remove
	iamcu-inval-2 and iamcu-inval-3.
	* testsuite/gas/i386/iamcu-4.d: New file.
	* testsuite/gas/i386/iamcu-4.s: Likewise.
	* testsuite/gas/i386/iamcu-5.d: Likewise.
	* testsuite/gas/i386/iamcu-5.s: Likewise.
	* testsuite/gas/i386/iamcu-inval-2.l: Removed.
	* testsuite/gas/i386/iamcu-inval-2.s: Likewise.
	* testsuite/gas/i386/iamcu-inval-3.l: Likewise.
	* testsuite/gas/i386/iamcu-inval-3.s: Likewise.

opcodes/

	* i386-gen.c (cpu_flag_init): Remove CPU_IAMCU_COMPAT_FLAGS.
	* i386-init.h: Regenerated.

9 files changed, 32 insertions, 9 deletions

diff --git a/gas/testsuite/gas/i386/i386.exp b/gas/testsuite/gas/i386/i386.exp
index a546c26..c2cdf60 100644
--- a/gas/testsuite/gas/i386/i386.exp
+++ b/gas/testsuite/gas/i386/i386.exp
@@ -441,9 +441,9 @@ if [expr ([istarget "i*86-*-*"] ||  [istarget "x86_64-*-*"]) && [gas_32_check]]
 	    run_dump_test "iamcu-1"
 	    run_dump_test "iamcu-2"
 	    run_dump_test "iamcu-3"
+	    run_dump_test "iamcu-4"
+	    run_dump_test "iamcu-5"
 	    run_list_test "iamcu-inval-1" "-march=iamcu -al"
-	    run_list_test "iamcu-inval-2" "-march=iamcu -al"
-	    run_list_test "iamcu-inval-3" "-march=iamcu+sse4 -al"
 	}
     }
 
diff --git a/gas/testsuite/gas/i386/iamcu-4.d b/gas/testsuite/gas/i386/iamcu-4.d
new file mode 100644
index 0000000..afd8a8e
--- /dev/null
+++ b/gas/testsuite/gas/i386/iamcu-4.d
@@ -0,0 +1,12 @@
+#as: -J -march=iamcu+sse2+387
+#objdump: -dw
+#not-target: *-*-nacl*
+
+.*: +file format elf32-iamcu.*
+
+Disassembly of section .text:
+
+0+ <.text>:
+ +[a-f0-9]+:	d9 ff                	fcos   
+ +[a-f0-9]+:	66 0f 58 01          	addpd  \(%ecx\),%xmm0
+#pass
diff --git a/gas/testsuite/gas/i386/iamcu-4.s b/gas/testsuite/gas/i386/iamcu-4.s
new file mode 100644
index 0000000..253763e
--- /dev/null
+++ b/gas/testsuite/gas/i386/iamcu-4.s
@@ -0,0 +1,3 @@
+	.text
+	fcos
+	addpd	(%ecx),%xmm0
diff --git a/gas/testsuite/gas/i386/iamcu-5.d b/gas/testsuite/gas/i386/iamcu-5.d
new file mode 100644
index 0000000..dde6977
--- /dev/null
+++ b/gas/testsuite/gas/i386/iamcu-5.d
@@ -0,0 +1,12 @@
+#as: -J -march=iamcu -I${srcdir}/$subdir
+#objdump: -dw
+#not-target: *-*-nacl*
+
+.*: +file format elf32-iamcu.*
+
+Disassembly of section .text:
+
+0+ <.text>:
+ +[a-f0-9]+:	d9 ff                	fcos   
+ +[a-f0-9]+:	66 0f 58 01          	addpd  \(%ecx\),%xmm0
+#pass
diff --git a/gas/testsuite/gas/i386/iamcu-5.s b/gas/testsuite/gas/i386/iamcu-5.s
new file mode 100644
index 0000000..afc558e
--- /dev/null
+++ b/gas/testsuite/gas/i386/iamcu-5.s
@@ -0,0 +1,3 @@
+	.arch .sse2
+	.arch .387
+.include "iamcu-4.s"
diff --git a/gas/testsuite/gas/i386/iamcu-inval-2.l b/gas/testsuite/gas/i386/iamcu-inval-2.l
deleted file mode 100644
index e62e29d..0000000
--- a/gas/testsuite/gas/i386/iamcu-inval-2.l
+++ /dev/null
@@ -1,2 +0,0 @@
-.*: Assembler messages:
-.*:2: Fatal error: `.sse4.1' isn't valid for Intel MCU
diff --git a/gas/testsuite/gas/i386/iamcu-inval-2.s b/gas/testsuite/gas/i386/iamcu-inval-2.s
deleted file mode 100644
index 46ef3ff..0000000
--- a/gas/testsuite/gas/i386/iamcu-inval-2.s
+++ /dev/null
@@ -1,2 +0,0 @@
-# Invalid .arch for Intel MCU
-	.arch .sse4.1
diff --git a/gas/testsuite/gas/i386/iamcu-inval-3.l b/gas/testsuite/gas/i386/iamcu-inval-3.l
deleted file mode 100644
index a9762a5..0000000
--- a/gas/testsuite/gas/i386/iamcu-inval-3.l
+++ /dev/null
@@ -1,2 +0,0 @@
-Assembler messages:
-Fatal error: `sse4' isn't valid for Intel MCU
diff --git a/gas/testsuite/gas/i386/iamcu-inval-3.s b/gas/testsuite/gas/i386/iamcu-inval-3.s
deleted file mode 100644
index 1c255e2..0000000
--- a/gas/testsuite/gas/i386/iamcu-inval-3.s
+++ /dev/null
@@ -1 +0,0 @@
-.include "iamcu-1.s"