Commit 775e055b59366f60badfb77a420219691846314b | zig

Closes #12624

2 files changed, 32 insertions(+), 0 deletions(-)

src/Sema.zig+2

...	...	@@ -6713,6 +6713,8 @@ fn instantiateGenericCall(
6713	6713	.comptime_args_fn_inst = module_fn.zir_body_inst,
6714	6714	.preallocated_new_func = new_module_func,
6715	6715	.is_generic_instantiation = true,
	6716	.branch_quota = sema.branch_quota,
	6717	.branch_count = sema.branch_count,
6716	6718	};
6717	6719	defer child_sema.deinit();
6718	6720

test/cases/compile_errors/generic_funciton_instantiation_inherits_parent_branch_quota.zig created+30

...	...	@@ -0,0 +1,30 @@
	1	pub export fn entry1() void {
	2	@setEvalBranchQuota(1001);
	3	// Return type evaluation should inherit both the
	4	// parent's branch quota and count meaning
	5	// at least 2002 backwards branches are required.
	6	comptime var i = 0;
	7	inline while (i < 1000) : (i += 1) {}
	8	_ = simple(10);
	9	}
	10	pub export fn entry2() void {
	11	@setEvalBranchQuota(2001);
	12	comptime var i = 0;
	13	inline while (i < 1000) : (i += 1) {}
	14	_ = simple(10);
	15	}
	16	fn simple(comptime n: usize) Type(n) {
	17	return n;
	18	}
	19	fn Type(comptime n: usize) type {
	20	if (n <= 1) return usize;
	21	return Type(n - 1);
	22	}
	23
	24	// error
	25	// backend=stage2
	26	// target=native
	27	//
	28	// :21:16: error: evaluation exceeded 1001 backwards branches
	29	// :21:16: note: use @setEvalBranchQuota() to raise the branch limit from 1001
	30	// :16:34: note: called from here