aarch64: Extend %R for integer registers

	* config/aarch64/aarch64.c (aarch64_print_operand): Allow integer
	registers with %R.

From-SVN: r275964

gcc/ChangeLog

+2019-09-19  Richard Henderson  <richard.henderson@linaro.org>
+
+	* config/aarch64/aarch64.c (aarch64_print_operand): Allow integer
+	registers with %R.
+
 2019-09-19  Feng Xue  <fxue@os.amperecomputing.com>
 
 	* ipa-fnsummary.c (set_cond_stmt_execution_predicate): Do not compute

gcc/config/aarch64/aarch64.c

@@ -8420,7 +8420,7 @@ sizetochar (int size)
      'S/T/U/V':		Print a FP/SIMD register name for a register list.
 			The register printed is the FP/SIMD register name
 			of X + 0/1/2/3 for S/T/U/V.
-     'R':		Print a scalar FP/SIMD register name + 1.
+     'R':		Print a scalar Integer/FP/SIMD register name + 1.
      'X':		Print bottom 16 bits of integer constant in hex.
      'w/x':		Print a general register name or the zero register
 			(32-bit or 64-bit).
@@ -8623,12 +8623,13 @@ aarch64_print_operand (FILE *f, rtx x, int code)
       break;
 
     case 'R':
-      if (!REG_P (x) || !FP_REGNUM_P (REGNO (x)))
-	{
-	  output_operand_lossage ("incompatible floating point / vector register operand for '%%%c'", code);
-	  return;
-	}
-      asm_fprintf (f, "q%d", REGNO (x) - V0_REGNUM + 1);
+      if (REG_P (x) && FP_REGNUM_P (REGNO (x)))
+	asm_fprintf (f, "q%d", REGNO (x) - V0_REGNUM + 1);
+      else if (REG_P (x) && GP_REGNUM_P (REGNO (x)))
+	asm_fprintf (f, "x%d", REGNO (x) - R0_REGNUM + 1);
+      else
+	output_operand_lossage ("incompatible register operand for '%%%c'",
+				code);
       break;
 
     case 'X':