88a161b388
When building on a ppc64le host we see this error:
build/genmatch --gimple ../../gcc/match.pd \
> tmp-gimple-match.c
../../gcc/match.pd:120:1 error: expected (, got NAME
negative value by 0 gives -0, not +0. */
This was reported upstream[1] and fixed on the GCC 6 [2] and GCC 7 [3]
branches:
Backport from mainline
2018-01-10 Kelvin Nilsen <kelvin@gcc.gnu.org>
* lex.c (search_line_fast): Remove illegal coercion of an
unaligned pointer value to vector pointer type and replace with
use of __builtin_vec_vsx_ld () built-in function, which operates
on unaligned pointer values.
The patches included in Buildroot contain just the code changes, and not
the changelog, to make it easer to manage backporting.
Tested on Ubuntu Cosmic ppc64le.
[1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86162
[2] https://gcc.gnu.org/viewcvs/gcc?view=revision&revision=261621
[3] https://gcc.gnu.org/viewcvs/gcc?view=revision&revision=262243
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
41 lines
1.3 KiB
Diff
41 lines
1.3 KiB
Diff
From aa65a43516da1d48011ef621ed5988289711d99b Mon Sep 17 00:00:00 2001
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From: marxin <marxin@138bc75d-0d04-0410-961f-82ee72b054a4>
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Date: Fri, 29 Jun 2018 09:31:30 +0000
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Subject: [PATCH] Partial backport r256656
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2018-06-29 Martin Liska <mliska@suse.cz>
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Backport from mainline
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2018-01-10 Kelvin Nilsen <kelvin@gcc.gnu.org>
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* lex.c (search_line_fast): Remove illegal coercion of an
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unaligned pointer value to vector pointer type and replace with
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use of __builtin_vec_vsx_ld () built-in function, which operates
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on unaligned pointer values.
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@261621 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-7-branch@262243 138bc75d-0d04-0410-961f-82ee72b054a4
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Signed-off-by: Joel Stanley <joel@jms.id.au>
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---
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libcpp/lex.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/libcpp/lex.c b/libcpp/lex.c
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index 097c78002cbb..e0fb9e822c44 100644
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--- a/libcpp/lex.c
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+++ b/libcpp/lex.c
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@@ -568,7 +568,7 @@ search_line_fast (const uchar *s, const uchar *end ATTRIBUTE_UNUSED)
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{
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vc m_nl, m_cr, m_bs, m_qm;
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- data = *((const vc *)s);
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+ data = __builtin_vec_vsx_ld (0, s);
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s += 16;
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m_nl = (vc) __builtin_vec_cmpeq(data, repl_nl);
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--
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2.17.1
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