From: simonmar <unknown>
Date: Mon, 31 Oct 2005 11:53:42 +0000 (+0000)
Subject: [project @ 2005-10-31 11:53:42 by simonmar]
X-Git-Tag: Initial_conversion_from_CVS_complete~93
X-Git-Url: http://git.megacz.com/?a=commitdiff_plain;ds=sidebyside;h=58786d7131b8842c5d50cb3ac4173753951cc343;p=ghc-hetmet.git

[project @ 2005-10-31 11:53:42 by simonmar]
x86_64: pass -fno-unit-at-a-time to gcc.  See comment for details.
---

diff --git a/ghc/compiler/main/DynFlags.hs b/ghc/compiler/main/DynFlags.hs
index a7f02bf..1f88fea 100644
--- a/ghc/compiler/main/DynFlags.hs
+++ b/ghc/compiler/main/DynFlags.hs
@@ -1246,11 +1246,16 @@ machdepCCOpts dflags
 
 #elif x86_64_TARGET_ARCH
 	= ( [], ["-fomit-frame-pointer",
-		 "-fno-asynchronous-unwind-tables"
+		 "-fno-asynchronous-unwind-tables",
 			-- the unwind tables are unnecessary for HC code,
 			-- and get in the way of -split-objs.  Another option
 			-- would be to throw them away in the mangler, but this
 			-- is easier.
+		 "-fno-unit-at-a-time"
+			-- unit-at-a-time doesn't do us any good, and screws
+			-- up -split-objs by moving the split markers around.
+			-- It's only turned on with -O2, but put it here just
+			-- in case someone uses -optc-O2.
 		] )
 
 #elif mips_TARGET_ARCH