re PR target/66274 (gcc6: x86 -m32 emits 64bit register in inline asm)

	PR target/66274
	* config/i386/i386.c (print_reg): Only print "r" for TARGET_64BIT
	when LEGACY_INT_REGNO_P is processed.

testsuite/ChangeLog:

	PR target/66274
	* gcc.target/i386/pr66274.c: New test.

From-SVN: r223649

gcc/ChangeLog

+2015-05-25  Uros Bizjak  <ubizjak@gmail.com>
+
+	PR target/66274
+	* config/i386/i386.c (print_reg): Only print "r" for TARGET_64BIT
+	when LEGACY_INT_REGNO_P is processed.
+
 2015-05-25  Alexander Monakov  <amonakov@ispras.ru>
 
 	* config/i386/i386.c (ix86_function_ok_for_sibcall): Check flag_plt.

gcc/config/i386/i386.c

@@ -15230,7 +15230,7 @@ print_reg (rtx x, int code, FILE *file)
     case 8:
     case 4:
       if (LEGACY_INT_REGNO_P (regno))
-	putc (msize == 8 ? 'r' : 'e', file);
+	putc (msize == 8 && TARGET_64BIT ? 'r' : 'e', file);
     case 16:
     case 12:
     case 2:

gcc/testsuite/ChangeLog

+2015-05-25  Uros Bizjak  <ubizjak@gmail.com>
+
+	PR target/66274
+	* gcc.target/i386/pr66274.c: New test.
+
 2015-05-25  Eric Botcazou  <ebotcazou@adacore.com>
 
 	* gnat.dg/renaming6.ad[sb]: New test.

gcc/testsuite/gcc.target/i386/pr66274.c

+/* { dg-do compile { target ia32 } } */
+/* { dg-options "-O" } */
+
+void f()
+{
+  asm ("push %0" : : "r" ((unsigned long long) 456));
+}
+
+/* { dg-final { scan-assembler-not "push %r" } } */