oops, phi nodes rewrite for fast locals was trashed

The phi fixing mechanism can use emit(), so we need to
set curi before performing the rewrite.  Otherwise, we are
writing at random places in the instruction buffer (not so
bad because it is bounds checked), but then we loose the
instructions written (bad)!

1 files changed, 1 insertions, 1 deletions

diff --git a/lisc/isel.c b/lisc/isel.c
index 8ae4be7..499a6e0 100644
--- a/lisc/isel.c
+++ b/lisc/isel.c
@@ -944,6 +944,7 @@ isel(Fn *fn)
 	n = fn->ntmp;
 	ainfo = emalloc(n * sizeof ainfo[0]);
 	for (b=fn->start; b; b=b->link) {
+		curi = &insb[NIns];
 		for (sb=(Blk*[3]){b->s1, b->s2, 0}; *sb; sb++)
 			for (p=(*sb)->phi; p; p=p->link) {
 				for (a=0; p->blk[a] != b; a++)
@@ -953,7 +954,6 @@ isel(Fn *fn)
 		for (m=0; m<n; m++)
 			ainfo[m] = (ANum){.n = 0, .i = 0};
 		anumber(ainfo, b, fn->con);
-		curi = &insb[NIns];
 		seljmp(b, fn);
 		for (i=&b->ins[b->nins]; i!=b->ins;)
 			sel(*--i, ainfo, fn);