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>
39 lines
1.2 KiB
Diff
39 lines
1.2 KiB
Diff
From 765527ad3725c5f3e82ab2b8e5031120b409983d 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, 15 Jun 2018 08:51:28 +0000
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Subject: [PATCH] Partial backport r256656
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2018-06-15 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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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 e5a0397f3099..b789686f1c49 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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