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authorsimonmar <unknown>2003-01-08 13:03:25 +0000
committersimonmar <unknown>2003-01-08 13:03:25 +0000
commit4107a27573ad740a842ecd4cc82c8ca871a7b06b (patch)
treec6d4439787015359d06fd668fb99891f2f89cdc1 /ghc/compiler/main/DriverFlags.hs
parent63366c1a6368fa8fe5532d16db01810c5576f14f (diff)
downloadhaskell-4107a27573ad740a842ecd4cc82c8ca871a7b06b.tar.gz
[project @ 2003-01-08 13:03:25 by simonmar]
Add -mno-omit-leaf-frame-pointer if gcc supports it. MERGE TO STABLE
Diffstat (limited to 'ghc/compiler/main/DriverFlags.hs')
-rw-r--r--ghc/compiler/main/DriverFlags.hs12
1 files changed, 10 insertions, 2 deletions
diff --git a/ghc/compiler/main/DriverFlags.hs b/ghc/compiler/main/DriverFlags.hs
index 328dac36ef..16c15c6357 100644
--- a/ghc/compiler/main/DriverFlags.hs
+++ b/ghc/compiler/main/DriverFlags.hs
@@ -1,5 +1,5 @@
-----------------------------------------------------------------------------
--- $Id: DriverFlags.hs,v 1.108 2002/12/17 13:50:29 simonmar Exp $
+-- $Id: DriverFlags.hs,v 1.109 2003/01/08 13:03:25 simonmar Exp $
--
-- Driver flags
--
@@ -579,7 +579,15 @@ machdepCCOpts
return ( [ if sta then "-DDONT_WANT_WIN32_DLL_SUPPORT" else ""
-- , if suffixMatch "mingw32" cTARGETPLATFORM then "-mno-cygwin" else ""
],
- [ "-fno-defer-pop", "-fomit-frame-pointer",
+ [ "-fno-defer-pop",
+#ifdef HAVE_GCC_MNO_OMIT_LFPTR
+ -- Some gccs are configured with
+ -- -momit-leaf-frame-pointer on by default, and it
+ -- apparently takes precedence over
+ -- -fomit-frame-pointer, so we disable it first here.
+ "-mno-omit-leaf-frame-pointer",
+#endif
+ "-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