[perl.git] branch blead, updated. v5.17.9-7-g688ea16

[Steve Hay]

In perl.git, the branch blead has been updated

<http://perl5.git.perl.org/perl.git/commitdiff/688ea162f4a70352089e12b46feab20232234ccf?hp=0e27d581cb664f678ac5c3df263d85f7774efc69>

- Log -----------------------------------------------------------------
commit 688ea162f4a70352089e12b46feab20232234ccf
Author: Daniel Dragan <bul...@hotmail.com>
Date: Thu Feb 21 08:42:13 2013 +0000

PATCH: [perl #116787] -Ox on Win64 Visual C 64 bit is flawed, switch to -O1

-Ox is missing -GF and -Gy and -Gs
http://blogs.msdn.com/b/branbray/archive/2005/07/08/437078.aspx
http://msdn.microsoft.com/en-us/library/8f8h5cxt%28v=vs.90%29.aspx
http://msdn.microsoft.com/en-us/library/59a3b321%28v=vs.90%29.aspx

So the remaining question is, use -O1 or use -O2 on VC 64? VC 32 bit uses
-O1, and that is also slightly faster on x64 too.
-----------------------------------------------------------------------

Summary of changes:
win32/Makefile | 2 +-
win32/makefile.mk | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/win32/Makefile b/win32/Makefile
index 221f096..7631eae 100644
--- a/win32/Makefile
+++ b/win32/Makefile
@@ -439,7 +439,7 @@ LINK_DBG = -debug -opt:ref,icf
#LINK_DBG = $(LINK_DBG) -debugtype:both
! IF "$(WIN64)" == "define"
# enable Whole Program Optimizations (WPO) and Link Time Code Generation (LTCG)
-OPTIMIZE = $(OPTIMIZE) -Ox -GL
+OPTIMIZE = $(OPTIMIZE) -O1 -GL
LINK_DBG = $(LINK_DBG) -ltcg
! ELSE
# -O1 yields smaller code, which turns out to be faster than -O2 on x86
diff --git a/win32/makefile.mk b/win32/makefile.mk
index 2d396c0..8a196a6 100644
--- a/win32/makefile.mk
+++ b/win32/makefile.mk
@@ -503,7 +503,7 @@ LINK_DBG = -debug -opt:ref,icf
#LINK_DBG = $(LINK_DBG) -debugtype:both
.IF "$(WIN64)" == "define"
# enable Whole Program Optimizations (WPO) and Link Time Code Generation (LTCG)
-OPTIMIZE += -Ox -GL
+OPTIMIZE += -O1 -GL
LINK_DBG += -ltcg
.ELSE
# -O1 yields smaller code, which turns out to be faster than -O2 on x86

--
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