qbe

commit 9ecfdf63340c167a243cd479534110b34737e80b
parent 77bdb3ae9e925c9063f10ff9e1e5cf8ac66538ce
Author: Quentin Carbonneaux <quentin.carbonneaux@yale.edu>
Date:   Fri, 17 Jul 2015 16:54:01 -0400

cosmetics

Diffstat:
M
lisc/lisc.h
 | 
24
+++++++++++++-----------
M
lisc/live.c
 | 
16
++++++++--------

2 files changed, 21 insertions(+), 19 deletions(-)
diff --git a/lisc/lisc.h b/lisc/lisc.h
@@ -1,10 +1,10 @@
 #include <assert.h>
+#include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
 typedef unsigned int uint;
-typedef unsigned short ushort;
 typedef unsigned char uchar;
 typedef unsigned long long ullong;
 
@@ -39,27 +39,29 @@ struct Bits {
 #define BCLR(b, n) ((b).t[n/NBit] &= ~((ullong)1<<(n%NBit)))
 
 struct Ref {
-	ushort type:1;
-	ushort val:15;
+	uint16_t type:1;
+	uint16_t val:15;
 };
 
-#define R (Ref){0, 0} // Invalid reference
-
-static inline int
-req(Ref a, Ref b)
-{
-	return a.type == b.type && a.val == b.val;
-}
-
 enum {
 	RSym = 0,
 	RConst = 1,
 	NRef = (1<<15) - 1
 };
 
+#define R        (Ref){0, 0}
 #define SYM(x)   (Ref){RSym, x}
 #define CONST(x) (Ref){RConst, x}
 
+static inline int req(Ref a, Ref b)
+{
+	return a.type == b.type && a.val == b.val;
+}
+static inline int rtype(Ref r)
+{
+	return req(r, R) ? -1 : r.type;
+}
+
 enum {
 	OXXX = 0,
 	OAdd,
diff --git a/lisc/live.c b/lisc/live.c
@@ -1,9 +1,9 @@
 #include "lisc.h"
 
 static inline void
-symadd(Bits *b, Ref r)
+bset(Bits *b, Ref r)
 {
-	if (!req(r, R) && r.type == RSym)
+	if (rtype(r) == RSym)
 		BSET(*b, r.val);
 }
 
@@ -32,15 +32,15 @@ filllive(Fn *f)
 		u = &use[b->id];
 		for (p=b->phi; p; p=p->link) {
 			for (a=0; a<p->narg; a++)
-				symadd(&p->blk[a]->out, p->arg[a]);
-			symadd(k, p->to);
+				bset(&p->blk[a]->out, p->arg[a]);
+			bset(k, p->to);
 		}
 		for (i=b->ins; i-b->ins < b->nins; i++) {
-			symadd(k, i->to);
-			symadd(u, i->arg[0]);
-			symadd(u, i->arg[1]);
+			bset(k, i->to);
+			bset(u, i->arg[0]);
+			bset(u, i->arg[1]);
 		}
-		symadd(u, b->jmp.arg);
+		bset(u, b->jmp.arg);
 	}
 Again:
 	chg = 0;