From 01b862af3be3cde43223e4b900f0025f70aaaac2 Mon Sep 17 00:00:00 2001
From: Michael Forney <mforney@mforney.org>
Date: Wed, 6 Mar 2019 21:11:23 -0800
Subject: qbe: Fix an aliasing bug

---
 ...call-when-determining-if-a-local-needs-to.patch | 26 ++++++++++++++++++++++
 pkg/qbe/rev                                        |  2 +-
 2 files changed, 27 insertions(+), 1 deletion(-)
 create mode 100644 pkg/qbe/patch/0004-Consider-vacall-when-determining-if-a-local-needs-to.patch

(limited to 'pkg/qbe')

diff --git a/pkg/qbe/patch/0004-Consider-vacall-when-determining-if-a-local-needs-to.patch b/pkg/qbe/patch/0004-Consider-vacall-when-determining-if-a-local-needs-to.patch
new file mode 100644
index 00000000..71126690
--- /dev/null
+++ b/pkg/qbe/patch/0004-Consider-vacall-when-determining-if-a-local-needs-to.patch
@@ -0,0 +1,26 @@
+From 2fcb277b0fa2993b00e0a85fe0e28697fe855dd1 Mon Sep 17 00:00:00 2001
+From: Michael Forney <mforney@mforney.org>
+Date: Wed, 6 Mar 2019 20:31:11 -0800
+Subject: [PATCH] Consider vacall when determining if a local needs to be
+ loaded
+
+---
+ load.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/load.c b/load.c
+index 6f5b6ab..a21a488 100644
+--- a/load.c
++++ b/load.c
+@@ -231,7 +231,7 @@ def(Slice sl, bits msk, Blk *b, Ins *i, Loc *il)
+ 	while (i > b->ins) {
+ 		--i;
+ 		if (killsl(i->to, sl)
+-		|| (i->op == Ocall && escapes(sl.ref, curf)))
++		|| ((i->op == Ocall || i->op == Ovacall) && escapes(sl.ref, curf)))
+ 			goto Load;
+ 		ld = isload(i->op);
+ 		if (ld) {
+-- 
+2.21.0
+
diff --git a/pkg/qbe/rev b/pkg/qbe/rev
index b4de3947..48082f72 100644
--- a/pkg/qbe/rev
+++ b/pkg/qbe/rev
@@ -1 +1 @@
-11
+12
-- 
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