From 2d2a6ed1a46349355650bfdd68688738c67bbf9c Mon Sep 17 00:00:00 2001
From: Jacob G-W <jacoblevgw@gmail.com>
Date: Wed, 23 Jun 2021 14:32:21 -0400
Subject: stage2: implement @setRuntimeSafety

---
 src/Module.zig | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'src/Module.zig')

diff --git a/src/Module.zig b/src/Module.zig
index e168f6aac7..439256f320 100644
--- a/src/Module.zig
+++ b/src/Module.zig
@@ -1151,6 +1151,9 @@ pub const Scope = struct {
 
         is_comptime: bool,
 
+        /// when null, it is determined by build mode, changed by @setRuntimeSafety
+        want_safety: ?bool = null,
+
         /// This `Block` maps a block ZIR instruction to the corresponding
         /// AIR instruction for break instruction analysis.
         pub const Label = struct {
@@ -1195,12 +1198,12 @@ pub const Scope = struct {
                 .runtime_cond = parent.runtime_cond,
                 .runtime_loop = parent.runtime_loop,
                 .runtime_index = parent.runtime_index,
+                .want_safety = parent.want_safety,
             };
         }
 
         pub fn wantSafety(block: *const Block) bool {
-            // TODO take into account scope's safety overrides
-            return switch (block.sema.mod.optimizeMode()) {
+            return block.want_safety orelse switch (block.sema.mod.optimizeMode()) {
                 .Debug => true,
                 .ReleaseSafe => true,
                 .ReleaseFast => false,
-- 
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