qbe

commit 95df8e55fe8f6a0bdea19787f9c5deec8edd544c
parent f625e49cb0180a2e6d4aa8e47dd889e13f8520cf
Author: Quentin Carbonneaux <quentin.carbonneaux@yale.edu>
Date:   Fri, 18 Mar 2016 15:44:26 -0400

remove spurious assignments in rega

Diffstat:
M
lisc/rega.c
 | 
4
+---

1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/lisc/rega.c b/lisc/rega.c
@@ -371,7 +371,6 @@ doblk(Blk *b, RMap *cur)
 			for (r=0; r<NRSave; r++)
 				if (!(BIT(rsave[r]) & rs))
 					rfree(cur, rsave[r]);
-			r = 0;
 			break;
 		case OCopy:
 			if (isreg(i->arg[0])) {
@@ -392,8 +391,7 @@ doblk(Blk *b, RMap *cur)
 				}
 				if (i->to.val >= Tmp0)
 					i->to = TMP(r);
-			} else
-				r = 0;
+			}
 			break;
 		}
 		for (x=0, nr=0; x<2; x++)