scc

commit 39b40b941b5658db5728d641191e8eaa632e8671
parent 1058d554d1451fa1d7b1f09ca9d6b8cfeb7e18ed
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Mon,  6 Jan 2025 09:01:09 +0100

cc2: Change order of branches in logicexpr()

All the branches should go to false in case of false, what means
that the normal control flow will go to the case 1 without branching.

Diffstat:
M
src/cmd/scc-cc/cc2/sethi.c
 | 
8
++++----

1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/src/cmd/scc-cc/cc2/sethi.c b/src/cmd/scc-cc/cc2/sethi.c
@@ -80,13 +80,13 @@ logicexpr(Node *np)
 	zero = constnode(NULL, 0, tp);
 	one = constnode(NULL, 1, tp);
 
-	p = assignnode(tp, tmpnode(tp, tmpsym), zero);
-	prestmt(labelstmt(p, false));
+	p = assignnode(tp, tmpnode(tp, tmpsym), one);
+	prestmt(labelstmt(p, true));
 
 	prestmt(branchnode(NULL, phi));
 
-	p = assignnode(tp, tmpnode(tp, tmpsym), one);
-	prestmt(labelstmt(p, true));
+	p = assignnode(tp, tmpnode(tp, tmpsym), zero);
+	prestmt(labelstmt(p, false));
 
 	prestmt(labelstmt(NULL, phi));
 	delstmt(np);