From: Jan Beulich <jbeulich@suse.com>
Date: Thu, 11 Mar 2021 15:21:19 +0000 (+0100)
Subject: x86: drop a few redundant EVEX-related checks
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=ac7a231133b5a1eeba16fe93396af86b7c5d7c7a;p=binutils-gdb.git

x86: drop a few redundant EVEX-related checks

vex.b can only be set when vex.evex is also set. Similarly vex.evex can
only be set when need_vex is also set.
---

diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog
index 54c69d85624..e31a93f7de9 100644
--- a/opcodes/ChangeLog
+++ b/opcodes/ChangeLog
@@ -1,3 +1,10 @@
+2021-03-11  Jan Beulich  <jbeulich@suse.com>
+
+	* i386-dis.c (putop): Drop need_vex check when also checking
+	vex.evex.
+	(intel_operand_size, OP_E_memory): Drop vex.evex check when also
+	checking vex.b.
+
 2021-03-11  Jan Beulich  <jbeulich@suse.com>
 
 	* i386-dis.c (OP_E_memory): Drop xmmq_mode from broadcast
diff --git a/opcodes/i386-dis.c b/opcodes/i386-dis.c
index eb91c5df4a6..10dbe7fe183 100644
--- a/opcodes/i386-dis.c
+++ b/opcodes/i386-dis.c
@@ -10749,7 +10749,7 @@ putop (const char *in_template, int sizeflag)
 	    }
 	  else if (l == 1 && last[0] == 'X')
 	    {
-	      if (!need_vex || !vex.evex)
+	      if (!vex.evex)
 		abort ();
 	      if (intel_syntax
 		  || ((modrm.mod == 3 || vex.b) && !(sizeflag & SUFFIX_ALWAYS)))
@@ -10951,8 +10951,7 @@ print_displacement (char *buf, bfd_vma disp)
 static void
 intel_operand_size (int bytemode, int sizeflag)
 {
-  if (vex.evex
-      && vex.b
+  if (vex.b
       && (bytemode == x_mode
 	  || bytemode == evex_half_bcst_xmmq_mode))
     {
@@ -11845,7 +11844,7 @@ OP_E_memory (int bytemode, int sizeflag)
 	  oappend (scratchbuf);
 	}
     }
-  if (vex.evex && vex.b
+  if (vex.b
       && (bytemode == x_mode
 	  || bytemode == evex_half_bcst_xmmq_mode))
     {