[libc] [llvm] Reland Refactor WIDE_READ to allow finer control over high-performance function selection (#165613) (PR #170738)

[Michael Jones via llvm-commits]

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@@ -1,7 +1,10 @@
 {
   "string": {
-    "LIBC_CONF_STRING_UNSAFE_WIDE_READ": {
-      "value": false
+    "LIBC_CONF_STRING_LENGTH_IMPL": {
+      "value": "element"
+    }
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michaelrj-google wrote:

it seems like the arm and riscv configs don't have commas on line 5

https://github.com/llvm/llvm-project/pull/170738