From e0b23bbaea31a3832723a9bc56bb425c83aa842f Mon Sep 17 00:00:00 2001
From: ceriel <none@none>
Date: Thu, 5 Feb 1987 19:20:54 +0000
Subject: [PATCH] Added code to kill regvar(...)

---
 util/ncgg/cgg.y    | 17 ++++++++++++++---
 util/ncgg/output.c | 18 ++++++++----------
 2 files changed, 22 insertions(+), 13 deletions(-)

diff --git a/util/ncgg/cgg.y b/util/ncgg/cgg.y
index 8c1974e94..f61d58714 100644
--- a/util/ncgg/cgg.y
+++ b/util/ncgg/cgg.y
@@ -95,7 +95,7 @@ iocc_t iops[20];
 %type <yy_int> register propno att_list_el_type tokenset_no
 %type <yy_int> adornlist optstar optuses optregvar regvartype optregvartype
 %type <yy_int> emarg tokarg subreg allreg optsecondstring
-%type <yy_expr> expr
+%type <yy_expr> expr regvarexpr
 %type <yy_iocc> tokeninstance
 %type <yy_int> optexpr optexact optstack
 %type <yy_set> tokenset
@@ -770,7 +770,14 @@ kill_list_el
 		  $$->vi_int[1]=$3;
 		  cursetno = -1;
 		}
-	;
+	| regvarexpr
+	 	{ NEW($$,struct varinfo);
+		  $$->vi_next = 0;
+		  $$->vi_int[0] = -($1.ex_index + 1);
+		  $$->vi_int[1] = 0;
+		}
+	; 
+
 allocates
 	: /* empty */
 		{ $$ = 0; nallreg=0;}
@@ -1055,7 +1062,11 @@ expr
 		{ $$ = make_expr(TYPINT,EX_INREG,i_expr($3),0); }
 	| regvartype
 		{ $$ = make_expr(TYPINT,EX_CON, $1+1, 0); }
-	| REGVAR '(' expr optregvartype ')'
+	| regvarexpr
+	;
+
+regvarexpr
+	: REGVAR '(' expr optregvartype ')'
 		{ $$ = regvar_expr($3,$4); }
 	;
 
diff --git a/util/ncgg/output.c b/util/ncgg/output.c
index 0175fb12c..260b834bf 100644
--- a/util/ncgg/output.c
+++ b/util/ncgg/output.c
@@ -121,6 +121,9 @@ errorexit() {
 #define codeint(x) fprintf(code," %d",x)
 #define codenl() fprintf(code,"\n")
 #else
+#define codenl()
+#define code8nl(x) code8(x)
+
 code8(x) {
 
 	codeindex++;
@@ -130,11 +133,6 @@ code8(x) {
 		putc(x,code);
 }
 
-code8nl(x) {
-
-	code8(x);
-}
-
 code53(x,y) {
 
 	code8(x+(y<<5));
@@ -151,8 +149,6 @@ codeint(x) {
 	}
 }
 
-codenl() {
-}
 #endif
 int prevind=0;
 int npatbytes= -1;
@@ -686,12 +682,14 @@ varinfo *kills,*allocates,*generates,*yields,*leaving;
 			code53(DO_REMOVE,1);
 			codeint(vp->vi_int[0]);
 			codeint(vp->vi_int[1]);
-			codenl();
-		} else {
+		} else if (vp->vi_int[1] >= 0) {
 			code53(DO_REMOVE,0);
 			codeint(vp->vi_int[0]);
-			codenl();
+		} else {
+			code8(DO_RREMOVE);
+			codeint(vp->vi_int[0]);
 		}
+		codenl();
 	}
 	nremoves=0;
 	for(vp=generates;vp!=0;vp=vp->vi_next) {
-- 
2.34.1