configure: Fix default value for optimize_option, I messed up the test condition

in r86005 and unintentionally changed the default from -O3 to -O2.

 - It's odd the things automated perf testing turns up! :)

 - Also, the configure diff is messed up slightly. It looks like someone either
   didn't regenerate configure correctly (or I didn't), or autoconf has some
   funnyness in it. Eric, any ideas?

This has been at -O2 for so long, that I am slightly nervous that this change
will uncover miscompiles of LLVM on other systems. If that is the case, I think
we should just set the default universally at -O3, and let developers/vendors
use -O3 if they want it and have tested it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100941 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Dunbar 2010-04-10 18:56:24 +00:00
parent 6f285d2105
commit 195d2dec10
2 changed files with 13 additions and 6 deletions

View File

@ -728,8 +728,8 @@ AC_MSG_CHECKING([optimization flags])
case "$withval" in
default)
case "$llvm_cv_os_type" in
MingW) optimize_option=-O3 ;;
*) optimize_option=-O2 ;;
MingW) optimize_option=-O2 ;;
*) optimize_option=-O3 ;;
esac ;;
*) optimize_option="$withval" ;;
esac

15
configure vendored
View File

@ -14,7 +14,7 @@
## M4sh Initialization. ##
## --------------------- ##
# Be Bourne compatible.
# Be Bourne compatible
if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
emulate sh
NULLCMD=:
@ -2166,6 +2166,11 @@ else
llvm_cv_no_link_all_option="-Wl,-noall_load"
llvm_cv_os_type="Darwin"
llvm_cv_platform_type="Unix" ;;
*-*-minix*)
llvm_cv_link_all_option="-Wl,-all_load"
llvm_cv_no_link_all_option="-Wl,-noall_load"
llvm_cv_os_type="Minix"
llvm_cv_platform_type="Unix" ;;
*-*-freebsd*)
llvm_cv_link_all_option="-Wl,--whole-archive"
llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
@ -2260,6 +2265,8 @@ else
llvm_cv_target_os_type="Cygwin" ;;
*-*-darwin*)
llvm_cv_target_os_type="Darwin" ;;
*-*-minix*)
llvm_cv_target_os_type="Minix" ;;
*-*-freebsd*)
llvm_cv_target_os_type="FreeBSD" ;;
*-*-openbsd*)
@ -5162,8 +5169,8 @@ echo $ECHO_N "checking optimization flags... $ECHO_C" >&6; }
case "$withval" in
default)
case "$llvm_cv_os_type" in
MingW) optimize_option=-O3 ;;
*) optimize_option=-O2 ;;
MingW) optimize_option=-O2 ;;
*) optimize_option=-O3 ;;
esac ;;
*) optimize_option="$withval" ;;
esac
@ -11156,7 +11163,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<EOF
#line 11159 "configure"
#line 11166 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H