From: Andi Kleen Date: Thu, 4 Sep 2008 11:46:11 +0000 (+0200) Subject: x86: drop -funroll-loops for csum_partial_64.c X-Git-Tag: v2.6.28-rc1~711^2^2~44^2~7 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=fb481dd56adf3c5b0993b8f052cc9ba966e3959d;p=linux-2.6-omap-h63xx.git x86: drop -funroll-loops for csum_partial_64.c Impact: performance optimization I did some rebenchmarking with modern compilers and dropping -funroll-loops makes the function consistently go faster by a few percent. So drop that flag. Thanks to Richard Guenther for a hint. Signed-off-by: Andi Kleen Signed-off-by: H. Peter Anvin --- diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile index aa3fa411942..55e11aa6d66 100644 --- a/arch/x86/lib/Makefile +++ b/arch/x86/lib/Makefile @@ -17,9 +17,6 @@ ifeq ($(CONFIG_X86_32),y) lib-$(CONFIG_X86_USE_3DNOW) += mmx_32.o else obj-y += io_64.o iomap_copy_64.o - - CFLAGS_csum-partial_64.o := -funroll-loops - lib-y += csum-partial_64.o csum-copy_64.o csum-wrappers_64.o lib-y += thunk_64.o clear_page_64.o copy_page_64.o lib-y += memmove_64.o memset_64.o