Fix potential overflow of bit-field initializers into following member

Fixes #46. Thanks to Andrew Chambers for the bug report.

2 files changed, 4 insertions, 0 deletions

diff --git a/test/bitfield-initializer-overflow.c b/test/bitfield-initializer-overflow.c
new file mode 100644
index 0000000..54de7c9
--- /dev/null
+++ b/test/bitfield-initializer-overflow.c
@@ -0,0 +1,3 @@
+struct {
+	unsigned : 30, a : 2, b;
+} s = {5};
diff --git a/test/bitfield-initializer-overflow.qbe b/test/bitfield-initializer-overflow.qbe
new file mode 100644
index 0000000..be0a065
--- /dev/null
+++ b/test/bitfield-initializer-overflow.qbe
@@ -0,0 +1 @@
+export data $s = align 4 { z 3, b 64, z 4 }