From 05361b75ca50e30016721c0b260c85ecf43dc783 Mon Sep 17 00:00:00 2001
From: Delyan Angelov <delian66@gmail.com>
Date: Sun, 18 May 2025 09:32:26 +0300
Subject: [PATCH] cgen: fix pattern generated by `const_init_or_block.vv` in
 `vlib/v/gen/c/coutput_test.v`, when VFLAGS=-no-parallel is used

---
 vlib/v/gen/c/cgen.v                                   |  2 ++
 .../const_init_or_block_no_parallel.c.must_have       | 11 +++++++++++
 .../gen/c/testdata/const_init_or_block_no_parallel.vv |  9 +++++++++
 3 files changed, 22 insertions(+)
 create mode 100644 vlib/v/gen/c/testdata/const_init_or_block_no_parallel.c.must_have
 create mode 100644 vlib/v/gen/c/testdata/const_init_or_block_no_parallel.vv

diff --git a/vlib/v/gen/c/cgen.v b/vlib/v/gen/c/cgen.v
index c8448c2ca..657723179 100644
--- a/vlib/v/gen/c/cgen.v
+++ b/vlib/v/gen/c/cgen.v
@@ -477,6 +477,8 @@ pub fn gen(files []&ast.File, mut table ast.Table, pref_ &pref.Preferences) GenO
 			global_g.file = file
 			global_g.gen_file()
 			global_g.cleanups[file.mod.name].drain_builder(mut global_g.cleanup, 100)
+			global_g.global_tmp_count = 0
+			global_g.tmp_count = 0
 		}
 		util.timing_measure('cgen serial processing')
 
diff --git a/vlib/v/gen/c/testdata/const_init_or_block_no_parallel.c.must_have b/vlib/v/gen/c/testdata/const_init_or_block_no_parallel.c.must_have
new file mode 100644
index 000000000..cd1f5f927
--- /dev/null
+++ b/vlib/v/gen/c/testdata/const_init_or_block_no_parallel.c.must_have
@@ -0,0 +1,11 @@
+{
+_option_bool _t2 = main__t1();
+if (_t2.state != 0) {
+IError err = _t2.err;
+_v_panic(IError_str(err));
+VUNREACHABLE();
+;
+}
+
+_const_main__barz = (((*(bool*)_t2.data)));
+}
\ No newline at end of file
diff --git a/vlib/v/gen/c/testdata/const_init_or_block_no_parallel.vv b/vlib/v/gen/c/testdata/const_init_or_block_no_parallel.vv
new file mode 100644
index 000000000..fe26b7674
--- /dev/null
+++ b/vlib/v/gen/c/testdata/const_init_or_block_no_parallel.vv
@@ -0,0 +1,9 @@
+// vtest vflags: -no-skip-unused -no-parallel
+fn t1() ?bool {
+	return true
+}
+
+type FooBar = bool
+
+const bar = FooBar(t1() or { panic(err) })
+const barz = FooBar(t1() or { panic(err) })
-- 
2.39.5