From 3147d2c4eef5da0110d392cd5128d64042dbbae5 Mon Sep 17 00:00:00 2001
From: Russ Cox <rsc@golang.org>
Date: Tue, 7 Oct 2014 12:07:40 -0400
Subject: [PATCH] cmd/5c, cmd/6c, cmd/8c: make failure to optimize fatal

LGTM=bradfitz, dave, r
R=r, bradfitz, dave
CC=golang-codereviews
https://golang.org/cl/152250044
---
 src/cmd/5c/reg.c |  9 +++------
 src/cmd/6c/reg.c | 14 ++++----------
 src/cmd/8c/reg.c |  9 +++------
 3 files changed, 10 insertions(+), 22 deletions(-)

diff --git a/src/cmd/5c/reg.c b/src/cmd/5c/reg.c
index 2fbe031f44..9024d5f496 100644
--- a/src/cmd/5c/reg.c
+++ b/src/cmd/5c/reg.c
@@ -406,7 +406,7 @@ loop2:
 			rgp->cost = change;
 			nregion++;
 			if(nregion >= NRGN) {
-				warn(Z, "too many regions");
+				fatal(Z, "too many regions");
 				goto brk;
 			}
 			rgp++;
@@ -642,11 +642,8 @@ mkvar(Addr *a, int docon)
 	if(s)
 		if(s->name[0] == '.')
 			goto none;
-	if(nvar >= NVAR) {
-		if(debug['w'] > 1 && s)
-			warn(Z, "variable not optimized: %s", s->name);
-		goto none;
-	}
+	if(nvar >= NVAR)
+		fatal(Z, "variable not optimized: %s", s->name);
 	i = nvar;
 	nvar++;
 	v = &var[i];
diff --git a/src/cmd/6c/reg.c b/src/cmd/6c/reg.c
index 348d747b72..6f8d3ce14d 100644
--- a/src/cmd/6c/reg.c
+++ b/src/cmd/6c/reg.c
@@ -585,14 +585,11 @@ loop2:
 			}
 			rgp->cost = change;
 			nregion++;
-			if(nregion >= NRGN) {
-				warn(Z, "too many regions");
-				goto brk;
-			}
+			if(nregion >= NRGN)
+				fatal(Z, "too many regions");
 			rgp++;
 		}
 	}
-brk:
 	qsort(region, nregion, sizeof(region[0]), rcmp);
 
 	/*
@@ -808,11 +805,8 @@ mkvar(Reg *r, Addr *a)
 			goto out;
 		v++;
 	}
-	if(nvar >= NVAR) {
-		if(debug['w'] > 1 && s)
-			warn(Z, "variable not optimized: %s", s->name);
-		goto none;
-	}
+	if(nvar >= NVAR)
+		fatal(Z, "variable not optimized: %s", s->name);
 	i = nvar;
 	nvar++;
 	v = &var[i];
diff --git a/src/cmd/8c/reg.c b/src/cmd/8c/reg.c
index e6ba8bcb3e..ea862f3888 100644
--- a/src/cmd/8c/reg.c
+++ b/src/cmd/8c/reg.c
@@ -518,7 +518,7 @@ loop2:
 			rgp->cost = change;
 			nregion++;
 			if(nregion >= NRGN) {
-				warn(Z, "too many regions");
+				fatal(Z, "too many regions");
 				goto brk;
 			}
 			rgp++;
@@ -746,11 +746,8 @@ mkvar(Reg *r, Addr *a)
 			goto out;
 		v++;
 	}
-	if(nvar >= NVAR) {
-		if(debug['w'] > 1 && s)
-			warn(Z, "variable not optimized: %s", s->name);
-		goto none;
-	}
+	if(nvar >= NVAR)
+		fatal(Z, "variable not optimized: %s", s->name);
 	i = nvar;
 	nvar++;
 	v = &var[i];
-- 
2.50.0