From: simonmar <unknown>
Date: Fri, 2 Aug 2002 12:24:04 +0000 (+0000)
Subject: [project @ 2002-08-02 12:24:04 by simonmar]
X-Git-Tag: Approx_11550_changesets_converted~1778
X-Git-Url: http://git.megacz.com/?a=commitdiff_plain;h=226413e1427f0436a0fc21ca156b956c60f730c5;p=ghc-hetmet.git

[project @ 2002-08-02 12:24:04 by simonmar]
Pass -fno-builtin to gcc when compiling .hc files, because this avoids
a common cause of running out of registers when foreign calls to
functions like memcpy(), strlen() are made from Haskell.

MERGE
---

diff --git a/ghc/compiler/main/DriverFlags.hs b/ghc/compiler/main/DriverFlags.hs
index 63aa85c..5cd1839 100644
--- a/ghc/compiler/main/DriverFlags.hs
+++ b/ghc/compiler/main/DriverFlags.hs
@@ -1,5 +1,5 @@
 -----------------------------------------------------------------------------
--- $Id: DriverFlags.hs,v 1.99 2002/07/11 06:52:23 ken Exp $
+-- $Id: DriverFlags.hs,v 1.100 2002/08/02 12:24:04 simonmar Exp $
 --
 -- Driver flags
 --
@@ -572,6 +572,10 @@ machdepCCOpts
 --                    , if suffixMatch "mingw32" cTARGETPLATFORM then "-mno-cygwin" else "" 
 		      ],
 		      [ "-fno-defer-pop", "-fomit-frame-pointer",
+			-- we want -fno-builtin, because when gcc inlines
+			-- built-in functions like memcpy() it tends to
+			-- run out of registers, requiring -monly-n-regs
+			"-fno-builtin",
 	                "-DSTOLEN_X86_REGS="++show n_regs ]
 		    )