fix comments typo.

gcc/ChangeLog

2019-01-24  Xiong Hu Luo  <luoxhu@linux.vnet.ibm.com>

	* tree-ssa-dom.c (test_for_singularity): fix a comment typo.
	* vr-values.c (find_case_label_ranges): fix a comment typo.

From-SVN: r268229

gcc/ChangeLog

+2019-01-24  Xiong Hu Luo  <luoxhu@linux.vnet.ibm.com>
+
+	* tree-ssa-dom.c (test_for_singularity): fix a comment typo.
+	* vr-values.c (find_case_label_ranges): fix a comment typo.
+
 2019-01-23  Bin Cheng  <bin.cheng@arm.com>
 	    Steve Ellcey <sellcey@marvell.com>
 

gcc/tree-ssa-dom.c

@@ -1929,7 +1929,7 @@ test_for_singularity (gimple *stmt, gcond *dummy_cond,
 
    3- Very simple redundant store elimination is performed.
 
-   4- We can simpify a condition to a constant or from a relational
+   4- We can simplify a condition to a constant or from a relational
       condition to an equality condition.  */
 
 edge

gcc/vr-values.c

@@ -2597,7 +2597,7 @@ find_case_label_ranges (gswitch *stmt, value_range *vr, size_t *min_idx1,
 
   take_default = !find_case_label_range (stmt, min, max, &i, &j);
 
-  /* Set second range to emtpy.  */
+  /* Set second range to empty.  */
   *min_idx2 = 1;
   *max_idx2 = 0;