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authorQuentin Carbonneaux <quentin@c9x.me>2017-07-27 19:48:54 -0400
committerQuentin Carbonneaux <quentin@c9x.me>2017-07-30 11:13:56 -0400
commit2b64b75c845d0491c7a701e44485d2856eeb686d (patch)
tree9a0b8819cadaf31a81e534be7a8c6041eff4793d /test
parent64c79edda0bc29d11b7efaffa9d051f64ea431d0 (diff)
downloadroux-2b64b75c845d0491c7a701e44485d2856eeb686d.tar.gz
fix dynamic stack allocs for amd64
The arm64 might have the same problem but it
is currently unable to handle them even in
instruction selection.

Thanks to Jean Dao for reporting the bug.
Diffstat (limited to 'test')
-rw-r--r--test/dynalloc.ssa27
1 files changed, 27 insertions, 0 deletions
diff --git a/test/dynalloc.ssa b/test/dynalloc.ssa
new file mode 100644
index 0000000..7c54e88
--- /dev/null
+++ b/test/dynalloc.ssa
@@ -0,0 +1,27 @@
+# make sure dynamic allocations
+# and caller-save regs interact
+# soundly
+
+function $g() {
+@start
+	ret
+}
+
+function w $f(w %arg) {
+@start
+	call $g()
+@alloc
+	%r =l alloc8 16
+	storel 180388626474, %r
+	%r8 =l add 8, %r
+	storel 180388626474, %r8
+	ret %arg
+}
+
+export
+function w $main() {
+@start
+	%a =w call $f(w 0)
+	%b =w call $f(w 0)
+	ret %a
+}