print-rtl.c: use '<' and '>' rather than % for pseudos in compact mode

gcc/ChangeLog:
	* print-rtl.c (rtx_writer::print_rtx_operand_code_r): For
	non-virtual pseudos in compact mode, wrap the regno in '<' and '>'
	rather than using a '%' prefix.
	* rtl-tests.c (selftest::test_dumping_regs): Update for above change.

From-SVN: r243798

gcc/ChangeLog

+2016-12-19  David Malcolm  <dmalcolm@redhat.com>
+
+	* print-rtl.c (rtx_writer::print_rtx_operand_code_r): For
+	non-virtual pseudos in compact mode, wrap the regno in '<' and '>'
+	rather than using a '%' prefix.
+	* rtl-tests.c (selftest::test_dumping_regs): Update for above change.
+
 2016-12-19  Dominik Vogt  <vogt@linux.vnet.ibm.com>
 
 	PR target/78748

gcc/print-rtl.c

@@ -481,11 +481,11 @@ rtx_writer::print_rtx_operand_code_r (const_rtx in_rtx)
       fputc ('#', m_outfile);
     else if (m_compact)
       {
-	/* In compact mode, print pseudos with a '%' sigil following
-	   by the regno, offset by (LAST_VIRTUAL_REGISTER + 1), so that the
-	   first non-virtual pseudo is dumped as "%0".  */
+	/* In compact mode, print pseudos with '< and '>' wrapping the regno,
+	   offseting it by (LAST_VIRTUAL_REGISTER + 1), so that the
+	   first non-virtual pseudo is dumped as "<0>".  */
 	gcc_assert (regno > LAST_VIRTUAL_REGISTER);
-	fprintf (m_outfile, " %%%d", regno - (LAST_VIRTUAL_REGISTER + 1));
+	fprintf (m_outfile, " <%d>", regno - (LAST_VIRTUAL_REGISTER + 1));
       }
     else
       fprintf (m_outfile, " %d", regno);

gcc/rtl-tests.c

@@ -104,9 +104,9 @@ test_dumping_regs ()
     }
 
   /* Test dumping of non-virtual pseudos.  */
-  ASSERT_RTL_DUMP_EQ ("(reg:SI %0)",
+  ASSERT_RTL_DUMP_EQ ("(reg:SI <0>)",
     gen_raw_REG (SImode, LAST_VIRTUAL_REGISTER + 1));
-  ASSERT_RTL_DUMP_EQ ("(reg:SI %1)",
+  ASSERT_RTL_DUMP_EQ ("(reg:SI <1>)",
     gen_raw_REG (SImode, LAST_VIRTUAL_REGISTER + 2));
 }