cmd/gc: rename AFATVARDEF to AVARDEF

The "fat" referred to being used for multiword values only.
We're going to use it for non-fat values sometimes too.

No change other than the renaming.

TBR=iant
CC=golang-codereviews
https://golang.org/cl/63650043

src/cmd/5g/ggen.c

@@ -772,7 +772,7 @@ clearfat(Node *nl)
 	if(componentgen(N, nl))
 		return;
 
-	gfatvardef(nl);
+	gvardef(nl);
 
 	c = w % 4;	// bytes
 	q = w / 4;	// quads

src/cmd/5g/peep.c

@@ -1164,7 +1164,7 @@ copyu(Prog *p, Adr *v, Adr *s)
 
 	case APCDATA:
 	case AFUNCDATA:
-	case AFATVARDEF:
+	case AVARDEF:
 		return 0;
 	}
 }

src/cmd/5g/prog.c

@@ -29,7 +29,7 @@ static ProgInfo progtable[ALAST] = {
 	[AUNDEF]=	{Break},
 	[AUSEFIELD]=	{OK},
 	[ACHECKNIL]=	{LeftRead},
-	[AFATVARDEF]=	{Pseudo | RightWrite},
+	[AVARDEF]=	{Pseudo | RightWrite},
 
 	// NOP is an internal no-op that also stands
 	// for USED and SET annotations, not the Intel opcode.

src/cmd/5l/5.out.h

@@ -198,7 +198,7 @@ enum	as
 	AFUNCDATA,
 	APCDATA,
 	ACHECKNIL,
-	AFATVARDEF,
+	AVARDEF,
 
 	AMRC, // MRC/MCR
 

src/cmd/6g/ggen.c

@@ -1023,7 +1023,7 @@ clearfat(Node *nl)
 	if(debug['g'])
 		dump("\nclearfat", nl);
 
-	gfatvardef(nl);
+	gvardef(nl);
 
 	w = nl->type->width;
 	// Avoid taking the address for simple enough types.

src/cmd/6g/prog.c

@@ -41,7 +41,7 @@ static ProgInfo progtable[ALAST] = {
 	[AUNDEF]=	{Break},
 	[AUSEFIELD]=	{OK},
 	[ACHECKNIL]=	{LeftRead},
-	[AFATVARDEF]=	{Pseudo | RightWrite},
+	[AVARDEF]=	{Pseudo | RightWrite},
 
 	// NOP is an internal no-op that also stands
 	// for USED and SET annotations, not the Intel opcode.

src/cmd/6l/6.out.h

@@ -762,7 +762,7 @@ enum	as
 	AFUNCDATA,
 	APCDATA,
 	ACHECKNIL,
-	AFATVARDEF,
+	AVARDEF,
 	
 	ALAST
 };

src/cmd/8g/ggen.c

@@ -78,7 +78,7 @@ clearfat(Node *nl)
 	if(componentgen(N, nl))
 		return;
 
-	gfatvardef(nl);
+	gvardef(nl);
 
 	c = w % 4;	// bytes
 	q = w / 4;	// quads

src/cmd/8g/prog.c

@@ -41,7 +41,7 @@ static ProgInfo progtable[ALAST] = {
 	[AUNDEF]=	{Break},
 	[AUSEFIELD]=	{OK},
 	[ACHECKNIL]=	{LeftRead},
-	[AFATVARDEF]=	{Pseudo | RightWrite},
+	[AVARDEF]=	{Pseudo | RightWrite},
 
 	// NOP is an internal no-op that also stands
 	// for USED and SET annotations, not the Intel opcode.

src/cmd/8l/8.out.h

@@ -579,7 +579,7 @@ enum	as
 	AFUNCDATA,
 	APCDATA,
 	ACHECKNIL,
-	AFATVARDEF,
+	AVARDEF,
 	
 	ALAST
 };

src/cmd/gc/gen.c

@@ -768,7 +768,7 @@ cgen_eface(Node *n, Node *res)
 	 */
 	Node dst;
 
-	gfatvardef(res);
+	gvardef(res);
 	dst = *res;
 	dst.type = types[tptr];
 	dst.xoffset += widthptr;
@@ -797,7 +797,7 @@ cgen_slice(Node *n, Node *res)
 	if(n->list->next->next)
 		offs = n->list->next->next->n;
 
-	gfatvardef(res);
+	gvardef(res);
 
 	// dst.len = hi [ - lo ]
 	dst = *res;

src/cmd/gc/go.h

@@ -1494,7 +1494,7 @@ void	gdatacomplex(Node*, Mpcplx*);
 void	gdatastring(Node*, Strlit*);
 void	ggloblnod(Node *nam);
 void	ggloblsym(Sym *s, int32 width, int dupok, int rodata);
-void	gfatvardef(Node*);
+void	gvardef(Node*);
 Prog*	gjmp(Prog*);
 void	gused(Node*);
 void	movelarge(NodeList*);

src/cmd/gc/pgen.c

@@ -32,28 +32,28 @@ makefuncdatasym(char *namefmt, int64 funcdatakind)
 }
 
 void
-gfatvardef(Node *n)
+gvardef(Node *n)
 {
 	if(n == N || !isfat(n->type))
-		fatal("gfatvardef: node is not fat");
+		fatal("gvardef: node is not fat");
 	switch(n->class) {
 	case PAUTO:
 	case PPARAM:
 	case PPARAMOUT:
-		gins(AFATVARDEF, N, n);
+		gins(AVARDEF, N, n);
 	}
 }
 
 static void
-removefatvardef(Prog *firstp)
+removevardef(Prog *firstp)
 {
 	Prog *p;
 
 	for(p = firstp; p != P; p = p->link) {
-		while(p->link != P && p->link->as == AFATVARDEF)
+		while(p->link != P && p->link->as == AVARDEF)
 			p->link = p->link->link;
 		if(p->to.type == D_BRANCH)
-			while(p->to.u.branch != P && p->to.u.branch->as == AFATVARDEF)
+			while(p->to.u.branch != P && p->to.u.branch->as == AVARDEF)
 				p->to.u.branch = p->to.u.branch->link;
 	}
 }
@@ -249,7 +249,7 @@ compile(Node *fn)
 		frame(0);
 
 	// Remove leftover instrumentation from the instruction stream.
-	removefatvardef(ptxt);
+	removevardef(ptxt);
 ret:
 	lineno = lno;
 }

src/cmd/gc/plive.c

@@ -710,7 +710,7 @@ progeffects(Prog *prog, Array *vars, Bvec *uevar, Bvec *varkill, Bvec *avarinit)
 					if(info.flags & (LeftRead | LeftAddr))
 						bvset(uevar, pos);
 					if(info.flags & LeftWrite)
-						if(from->node != nil && (!isfat(from->node->type) || prog->as == AFATVARDEF))
+						if(from->node != nil && (!isfat(from->node->type) || prog->as == AVARDEF))
 							bvset(varkill, pos);
 				}
 			}
@@ -736,7 +736,7 @@ Next:
 					if(info.flags & (RightRead | RightAddr))
 						bvset(uevar, pos);
 					if(info.flags & RightWrite)
-						if(to->node != nil && (!isfat(to->node->type) || prog->as == AFATVARDEF))
+						if(to->node != nil && (!isfat(to->node->type) || prog->as == AVARDEF))
 							bvset(varkill, pos);
 				}
 			}

src/liblink/asm6.c

@@ -1518,7 +1518,7 @@ Optab optab[] =
 	{ AFUNCDATA,	yfuncdata,	Px, 0,0 },
 	{ APCDATA,	ypcdata,	Px, 0,0 },
 	{ ACHECKNIL },
-	{ AFATVARDEF },
+	{ AVARDEF },
 
 	{ AEND },
 	0

src/liblink/asm8.c

@@ -1146,7 +1146,7 @@ static Optab optab[] =
 	{ AFUNCDATA,	yfuncdata,	Px, 0,0 },
 	{ APCDATA,	ypcdata,	Px, 0,0 },
 	{ ACHECKNIL },
-	{ AFATVARDEF },
+	{ AVARDEF },
 
 	0
 };