IR: add more instructions

 * MaybeWrap
 * TestErr
 * UnwrapErrCode
 * UnwrapErrPayload
 * ErrUnionTypeChild
 * ErrWrapCode
 * ErrWrapPayload

2 files changed, 18 insertions, 0 deletions

diff --git a/test/cases/err_wrapping.zig b/test/cases/err_wrapping.zig
new file mode 100644
index 0000000000..083d6a40cc
--- /dev/null
+++ b/test/cases/err_wrapping.zig
@@ -0,0 +1,13 @@
+pub fn foo() -> %i32 {
+    const x = %return bar();
+    return x + 1
+}
+
+pub fn bar() -> %i32 {
+    return 13;
+}
+
+pub fn baz() -> %i32 {
+    const y = foo() %% 1234;
+    return y + 1;
+}
diff --git a/test/self_hosted2.zig b/test/self_hosted2.zig
index 214b59dd6c..517567271e 100644
--- a/test/self_hosted2.zig
+++ b/test/self_hosted2.zig
@@ -1,4 +1,5 @@
 const case_namespace_fn_call = @import("cases/namespace_fn_call.zig");
+const case_err_wrapping = @import("cases/err_wrapping.zig");
 
 pub const SYS_write = 1;
 pub const SYS_exit = 60;
@@ -354,6 +355,9 @@ fn assignToIfVarPtr() {
     assert(??maybe_bool == false);
 }
 
+fn errorWrapping() {
+    assert(%%case_err_wrapping.baz() == 15);
+}
 
 fn assert(ok: bool) {
     if (!ok)
@@ -390,6 +394,7 @@ fn runAllTests() {
     overflowIntrinsics();
     shlWithOverflow();
     assignToIfVarPtr();
+    errorWrapping();
 }
 
 export nakedcc fn _start() -> unreachable {