From 9cd8c56cdc8e380fda3fdcc9c3554e4f11232162 Mon Sep 17 00:00:00 2001
From: Danny Robson <danny@nerdcruft.net>
Date: Thu, 18 Jan 2018 11:51:38 +1100
Subject: [PATCH] optimisation: re-enable fipa-pta under GCC

It appears codegen works again? Perhaps we were running into a seperate
issue and fipa-pta always worked.
---
 nc_optimisation.cmake | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/nc_optimisation.cmake b/nc_optimisation.cmake
index 2cacafa..b58c122 100644
--- a/nc_optimisation.cmake
+++ b/nc_optimisation.cmake
@@ -104,12 +104,7 @@ else()
     append_compile_flag(-fpredictive-commoning)
     append_compile_flag(-funswitch-loops)
 
-    # options that require substantial time/memory
-    # GCC: ipa-pta can produce broken code when using LTO
-    #AS_IF([test "x$ax_cv_cxx_compiler_vendor" != "xgnu"   ||
-    #       test "x$enable_lto"                != "xyes"], [
-    #    AX_APPEND_COMPILE_FLAGS([-fipa-pta])
-    #])
+    append_compile_flag (-fipa-pta)
 
     # safety removal for performance
     append_compile_flag(-fno-stack-protector)