[NDS32] Refine register dwarf span.

gcc/
	* config/nds32/nds32.c (nds32_dwarf_register_span): Refine register
	dwarf span.

From-SVN: r268739

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 4418335..5c415d8 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2019-02-10  Monk Chiang  <sh.chiang04@gmail.com>
+
+       * config/nds32/nds32.c (nds32_dwarf_register_span): Refine register
+       dwarf span.
+
 2019-02-10  Chung-Ju Wu  <jasonwucj@gmail.com>
 
        * config/nds32/nds32-md-auxiliary.c (nds32_spilt_doubleword): Support

diff --git a/gcc/config/nds32/nds32.c b/gcc/config/nds32/nds32.c
index 6702b76..283e189 100644 (file)
--- a/gcc/config/nds32/nds32.c
+++ b/gcc/config/nds32/nds32.c
@@ -3867,11 +3867,9 @@ nds32_dwarf_register_span (rtx reg)
                                   gen_rtvec (4, dwarf_low_re, dwarf_high_re,
                                                 dwarf_high_im, dwarf_low_im));
        }
-      else if (mode == SFmode || mode == SImode)
+      else if (GET_MODE_SIZE (mode) <= UNITS_PER_WORD)
        {
-         /* Create new dwarf information with adjusted register number.  */
-         dwarf_single = gen_rtx_REG (word_mode, regno);
-         return gen_rtx_PARALLEL (VOIDmode, gen_rtvec (1, dwarf_single));
+         return NULL_RTX;
        }
       else
        {