Gate llvm.sideeffect under -Z insert-sideeffect
diff --git a/src/librustc/session/config.rs b/src/librustc/session/config.rs
index 73b731b..abfbba5 100644
--- a/src/librustc/session/config.rs
+++ b/src/librustc/session/config.rs
@@ -1472,6 +1472,9 @@
"which mangling version to use for symbol names"),
binary_dep_depinfo: bool = (false, parse_bool, [TRACKED],
"include artifacts (sysroot, crate dependencies) used during compilation in dep-info"),
+ insert_sideeffect: bool = (false, parse_bool, [TRACKED],
+ "fix undefined behavior when a thread doesn't eventually make progress \
+ (such as entering an empty infinite loop) by inserting llvm.sideeffect"),
}
pub fn default_lib_output() -> CrateType {
