[libc-commits] [libc] [libc] Disable null checks on baremetal platforms (PR #163515)

[via libc-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-libc

Author: Petr Hosek (petrhosek)

<details>
<summary>Changes</summary>

On baremetal platforms, 0 is often a valid address and the null checks can break otherwise correct code.

---
Full diff: https://github.com/llvm/llvm-project/pull/163515.diff


1 Files Affected:

- (modified) libc/config/baremetal/config.json (+5) 


``````````diff
diff --git a/libc/config/baremetal/config.json b/libc/config/baremetal/config.json
index f01e5084b9695..796b1d8ed1398 100644
--- a/libc/config/baremetal/config.json
+++ b/libc/config/baremetal/config.json
@@ -38,5 +38,10 @@
     "LIBC_CONF_MATH_OPTIMIZATIONS": {
       "value": "(LIBC_MATH_SKIP_ACCURATE_PASS | LIBC_MATH_SMALL_TABLES)"
     }
+  },
+  "general": {
+    "LIBC_ADD_NULL_CHECKS": {
+      "value": false
+    }
   }
 }

``````````

</details>


https://github.com/llvm/llvm-project/pull/163515