Remove workaround for the forward progress handling in LLVM

1 files changed, 0 insertions, 11 deletions

diff --git a/compiler/rustc_codegen_ssa/src/mir/block.rs b/compiler/rustc_codegen_ssa/src/mir/block.rs
index a9471f7b771..c8f388bfa1d 100644
--- a/compiler/rustc_codegen_ssa/src/mir/block.rs
+++ b/compiler/rustc_codegen_ssa/src/mir/block.rs
@@ -980,17 +980,6 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
             }
 
             mir::TerminatorKind::Goto { target } => {
-                if bb == target {
-                    // This is an unconditional branch back to this same basic block. That means we
-                    // have something like a `loop {}` statement. LLVM versions before 12.0
-                    // miscompile this because they assume forward progress. For older versions
-                    // try to handle just this specific case which comes up commonly in practice
-                    // (e.g., in embedded code).
-                    //
-                    // NB: the `sideeffect` currently checks for the LLVM version used internally.
-                    bx.sideeffect();
-                }
-
                 helper.funclet_br(self, &mut bx, target);
             }