add support for unions in sysv abi

1 files changed, 13 insertions, 0 deletions

diff --git a/test/abi5.ssa b/test/abi5.ssa
index 7899035..c3d9046 100644
--- a/test/abi5.ssa
+++ b/test/abi5.ssa
@@ -8,6 +8,8 @@ type :st5 = { s, l }
 type :st6 = { b 16 }
 type :st7 = { s, d }
 type :st8 = { w 4 }
+type :un9 = { { b } { s } }
+type :st9 = { w, :un9 }
 
 data $fmt1 = { b "t1: %s\n", b 0 }
 data $fmt2 = { b "t2: %d\n", b 0 }
@@ -17,6 +19,7 @@ data $fmt5 = { b "t5: %f %lld\n", b 0 }
 data $fmt6 = { b "t6: %s\n", b 0 }
 data $fmt7 = { b "t7: %f %f\n", b 0 }
 data $fmt8 = { b "t8: %d %d %d %d\n", b 0 }
+data $fmt9 = { b "t9: %d %f\n", b 0 }
 
 export
 function $test() {
@@ -68,6 +71,13 @@ function $test() {
 	%w84 =w loadw %r812
 	%i8 =w call $printf(l $fmt8, w %w81, w %w82, w %w83, w %w84)
 
+	%r9 =:st9 call $t9()
+	%r94 =l add 4, %r9
+	%w9 =w loadw %r9
+	%s9 =s loads %r94
+	%d9 =d exts %s9
+	%i9 =w call $printf(l $fmt9, w %w9, d %d9)
+
 	ret
 }
 
@@ -82,6 +92,7 @@ function $test() {
 # typedef struct { char t[16]; } st6;
 # typedef struct { float f; double d; } st7;
 # typedef struct { int i[4]; } st8;
+# typedef struct { int i; union { char c; float f; } u; } st9;
 # extern void test(void);
 # st1 t1() { return (st1){"abcdefghijklmnop"}; }
 # st2 t2() { return (st2){2}; }
@@ -91,6 +102,7 @@ function $test() {
 # st6 t6() { return (st6){"abcdefghijklmno"}; }
 # st7 t7() { return (st7){7.77,77.7}; }
 # st8 t8() { return (st8){-8,88,-888,8888}; }
+# st9 t9() { return (st9){9,{.f=9.9}}; }
 # int main() { test(); return 0; }
 # <<<
 
@@ -103,4 +115,5 @@ function $test() {
 # t6: abcdefghijklmno
 # t7: 7.770000 77.700000
 # t8: -8 88 -888 8888
+# t9: 9 9.900000
 # <<<