Extend char/short types before comparing

Thanks to Andrew Chambers for reporting the issue.

1 files changed, 11 insertions, 0 deletions

diff --git a/tests/compare-char.qbe b/tests/compare-char.qbe
new file mode 100644
index 0000000..a0a1c03
--- /dev/null
+++ b/tests/compare-char.qbe
@@ -0,0 +1,11 @@
+export
+function w $main() {
+@start.1
+@body.2
+	%.1 =w copy 0
+	%.2 =w copy 256
+	%.3 =w extub %.1
+	%.4 =w extub %.2
+	%.5 =w cultw %.3, %.4
+	ret %.5
+}