From 7d06bdd4a148ccb924cd6628a94ca8bc0d3611fb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Dominik=20Inf=C3=BChr?= <dominik.infuehr@gmail.com>
Date: Thu, 3 Nov 2016 10:53:13 +0100
Subject: [PATCH] set frame pointer elimination attribute for main

The rustc-generated function `main` should respect the same config for
frame pointer elimination as the rest of code.
---
 src/librustc_trans/base.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/librustc_trans/base.rs b/src/librustc_trans/base.rs
index 977ababbf56..47b6fdc740a 100644
--- a/src/librustc_trans/base.rs
+++ b/src/librustc_trans/base.rs
@@ -1196,6 +1196,9 @@ pub fn maybe_create_entry_wrapper(ccx: &CrateContext) {
         }
         let llfn = declare::declare_cfn(ccx, "main", llfty);
 
+        // `main` should respect same config for frame pointer elimination as rest of code
+        attributes::set_frame_pointer_elimination(ccx, llfn);
+
         let llbb = unsafe {
             llvm::LLVMAppendBasicBlockInContext(ccx.llcx(), llfn, "top\0".as_ptr() as *const _)
         };