x86: don't recognize bnd<N> as registers without CpuMPX

This is just like for all other extended/optional register sets.

diff --git a/gas/ChangeLog b/gas/ChangeLog
index 3131982..a13f86f 100644 (file)
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,5 +1,12 @@
 2018-04-26  Jan Beulich  <jbeulich@suse.com>
 
+       * config/tc-i386.c (parse_real_register): Check bnd<N>
+       registers.
+       * testsuite/gas/i386/bnd.s, testsuite/gas/i386/bnd.l: New.
+       * testsuite/gas/i386/i386.exp: Run new test.
+
+2018-04-26  Jan Beulich  <jbeulich@suse.com>
+
        * config/tc-i386.c (parse_real_register): Check FPU register
        earlier.
        * testsuite/gas/i386/fpu.s, testsuite/gas/i386/fpu.l,

diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c
index fcd40e2..ccecdda 100644 (file)
--- a/gas/config/tc-i386.c
+++ b/gas/config/tc-i386.c
@@ -10170,6 +10170,9 @@ parse_real_register (char *reg_string, char **end_op)
       && !cpu_arch_flags.bitfield.cpuregmask)
     return (const reg_entry *) NULL;
 
+  if (r->reg_type.bitfield.regbnd && !cpu_arch_flags.bitfield.cpumpx)
+    return (const reg_entry *) NULL;
+
   /* Don't allow fake index register unless allow_index_reg isn't 0. */
   if (!allow_index_reg
       && (r->reg_num == RegEiz || r->reg_num == RegRiz))

diff --git a/gas/testsuite/gas/i386/bnd.l b/gas/testsuite/gas/i386/bnd.l
new file mode 100644 (file)
index 0000000..4222896
--- /dev/null
+++ b/gas/testsuite/gas/i386/bnd.l
@@ -0,0 +1,12 @@
+.*: Assembler messages:
+.*:6: Error: .*`bndmov'.*
+GAS LISTING .*
+
+
+[      ]*1[    ]+\.text
+[      ]*2[    ]+\.intel_syntax noprefix
+[      ]*3[    ]+\.arch generic32
+[      ]*4[    ]+bnd:
+[      ]*5[    ]+\?\?\?\? A1000000[    ]+mov   eax, bnd0
+[      ]*5[    ]+00
+[      ]*6[    ]+bndmov        bnd0, bnd0

diff --git a/gas/testsuite/gas/i386/bnd.s b/gas/testsuite/gas/i386/bnd.s
new file mode 100644 (file)
index 0000000..9ca4ce7
--- /dev/null
+++ b/gas/testsuite/gas/i386/bnd.s
@@ -0,0 +1,6 @@
+       .text
+       .intel_syntax noprefix
+       .arch generic32
+bnd:
+       mov     eax, bnd0
+       bndmov  bnd0, bnd0

diff --git a/gas/testsuite/gas/i386/i386.exp b/gas/testsuite/gas/i386/i386.exp
index 95e3469..62c03d8 100644 (file)
--- a/gas/testsuite/gas/i386/i386.exp
+++ b/gas/testsuite/gas/i386/i386.exp
@@ -294,6 +294,7 @@ if [expr ([istarget "i*86-*-*"] ||  [istarget "x86_64-*-*"]) && [gas_32_check]]
     run_list_test "mpx-inval-1" "-al"
     run_list_test "mpx-inval-2" "-al"
     run_dump_test "mpx-add-bnd-prefix"
+    run_list_test "bnd" "-al"
     run_dump_test "sha"
     run_dump_test "clflushopt"
     run_dump_test "clflushopt-intel"