From 86e12cb1a3d9bc4cf3ba2c04a2513f3ff07144c4 Mon Sep 17 00:00:00 2001
From: Timotej Kapus <kapust@fb.com>
Date: Fri, 21 Jun 2019 03:45:57 -0700
Subject: [PATCH] [sledge] Add missing llvm passes to frontend.ml

Summary:
Adds `-mergefunc` and `-dce` passes to `Frontend.translate` to match
the `buck link` flow with `opt`

Reviewed By: ngorogiannis

Differential Revision: D15938641

fbshipit-source-id: 128cb89cd
---
 sledge/src/llair/frontend.ml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sledge/src/llair/frontend.ml b/sledge/src/llair/frontend.ml
index e2630974b..9282b19fa 100644
--- a/sledge/src/llair/frontend.ml
+++ b/sledge/src/llair/frontend.ml
@@ -1362,10 +1362,12 @@ let transform : Llvm.llmodule -> unit =
       List.exists entry_points ~f:(String.equal fn) ) ;
   Llvm_ipo.add_global_dce pm ;
   Llvm_ipo.add_global_optimizer pm ;
+  Llvm_ipo.add_merge_functions pm ;
   Llvm_ipo.add_constant_merge pm ;
   Llvm_ipo.add_argument_promotion pm ;
   Llvm_ipo.add_ipsccp pm ;
   Llvm_scalar_opts.add_memory_to_register_promotion pm ;
+  Llvm_scalar_opts.add_dce pm ;
   Llvm_ipo.add_global_dce pm ;
   Llvm_ipo.add_dead_arg_elimination pm ;
   Llvm_scalar_opts.add_lower_atomic pm ;