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Revert "Disable GCCs aggressive loop optimization" 

This reverts commit 0f62f3f9ab.

Signed-off-by: Tim Chase <tim@chase2k.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2010
This commit is contained in:
Brian Behlendorf 2014-07-18 12:22:40 -07:00
parent aca19e063b
commit 1139491da7
4 changed files with 0 additions and 23 deletions
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1
config/Rules.am
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@ -3,7 +3,6 @@ DEFAULT_INCLUDES = -include ${top_builddir}/zfs_config.h
AM_LIBTOOLFLAGS = --silent
AM_CFLAGS = ${DEBUG_CFLAGS} -Wall -Wstrict-prototypes
AM_CFLAGS += ${NO_UNUSED_BUT_SET_VARIABLE}
AM_CFLAGS += ${NO_AGGRESSIVE_LOOP_OPTIMIZATIONS}
AM_CFLAGS += -fno-strict-aliasing
AM_CPPFLAGS = -D_GNU_SOURCE -D__EXTENSIONS__ -D_REENTRANT
AM_CPPFLAGS += -D_POSIX_PTHREAD_SEMANTICS -D_FILE_OFFSET_BITS=64

20
config/always-no-aggressive-loop-optimizations.m4
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@ -1,20 +0,0 @@
dnl #
dnl # Check if gcc supports -fno-aggressive-loop-optimizations
dnl #
AC_DEFUN([ZFS_AC_CONFIG_ALWAYS_NO_AGGRESSIVE_LOOP_OPTIMIZATIONS], [
AC_MSG_CHECKING([for -fno-aggressive-loop-optimizations support])
saved_flags="$CFLAGS"
CFLAGS="$CFLAGS -fno-aggressive-loop-optimizations"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])], [
NO_AGGRESSIVE_LOOP_OPTIMIZATIONS=-fno-aggressive-loop-optimizations
AC_MSG_RESULT([yes])
], [
NO_AGGRESSIVE_LOOP_OPTIMIZATIONS=
AC_MSG_RESULT([no])
])
CFLAGS="$saved_flags"
AC_SUBST([NO_AGGRESSIVE_LOOP_OPTIMIZATIONS])
])

1
config/kernel.m4
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@ -105,7 +105,6 @@ AC_DEFUN([ZFS_AC_CONFIG_KERNEL], [
dnl # -Wall -fno-strict-aliasing -Wstrict-prototypes and other
dnl # compiler options are added by the kernel build system.
KERNELCPPFLAGS="$KERNELCPPFLAGS $NO_UNUSED_BUT_SET_VARIABLE"
KERNELCPPFLAGS="$KERNELCPPFLAGS $NO_AGGRESSIVE_LOOP_OPTIMIZATIONS"
KERNELCPPFLAGS="$KERNELCPPFLAGS -DHAVE_SPL -D_KERNEL"
KERNELCPPFLAGS="$KERNELCPPFLAGS -DTEXT_DOMAIN=\\\"zfs-linux-kernel\\\""

1
config/zfs-build.m4
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@ -62,7 +62,6 @@ AC_DEFUN([ZFS_AC_DEBUG_DMU_TX], [
AC_DEFUN([ZFS_AC_CONFIG_ALWAYS], [
ZFS_AC_CONFIG_ALWAYS_NO_UNUSED_BUT_SET_VARIABLE
ZFS_AC_CONFIG_ALWAYS_NO_AGGRESSIVE_LOOP_OPTIMIZATIONS
])
AC_DEFUN([ZFS_AC_CONFIG], [