From: Jan Beulich Date: Tue, 10 Jan 2006 07:25:39 +0000 (+0000) Subject: i386.c (ix86_data_alignment): Don't force alignment to 256 bits when optimize_size. X-Git-Tag: releases/gcc-4.2.0~4953 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6c23a1f24ffe3530a58c8fbdb8c3ac518dae3653;p=thirdparty%2Fgcc.git i386.c (ix86_data_alignment): Don't force alignment to 256 bits when optimize_size. 2006-01-10 Jan Beulich * config/i386/i386.c (ix86_data_alignment): Don't force alignment to 256 bits when optimize_size. From-SVN: r109537 --- diff --git a/gcc/ChangeLog b/gcc/ChangeLog index a12ae46fdb9f..ad3f304892d3 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2006-01-10 Jan Beulich + + * config/i386/i386.c (ix86_data_alignment): Don't force alignment to + 256 bits when optimize_size. + 2006-01-10 Jan Beulich * config/i386/netware.h (TARGET_SUBTARGET_DEFAULT): Include diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index c9886fd105a2..e48e288cbc8e 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -13363,12 +13363,15 @@ ix86_constant_alignment (tree exp, int align) int ix86_data_alignment (tree type, int align) { + int max_align = optimize_size ? BITS_PER_WORD : 256; + if (AGGREGATE_TYPE_P (type) - && TYPE_SIZE (type) - && TREE_CODE (TYPE_SIZE (type)) == INTEGER_CST - && (TREE_INT_CST_LOW (TYPE_SIZE (type)) >= 256 - || TREE_INT_CST_HIGH (TYPE_SIZE (type))) && align < 256) - return 256; + && TYPE_SIZE (type) + && TREE_CODE (TYPE_SIZE (type)) == INTEGER_CST + && (TREE_INT_CST_LOW (TYPE_SIZE (type)) >= (unsigned) max_align + || TREE_INT_CST_HIGH (TYPE_SIZE (type))) + && align < max_align) + align = max_align; /* x86-64 ABI requires arrays greater than 16 bytes to be aligned to 16byte boundary. */