mirror of
git://git.savannah.gnu.org/guix.git
synced 2023-12-14 03:33:07 +01:00
b04a20f77f
GCC 5 has a misaligned access to a vector pointer which causes a build failure when using GCC 8 and later. Backport upstream fix that was applied on the GCC 6 branch. * gnu/packages/gcc.scm (gcc-5)[source]: Apply gcc-5-fix-powerpc64le-build.patch. * gnu/packages/patches/gcc-5-fix-powerpc64le-build.patch: New file. * gnu/local.mk (dist_patch_DATA): Register it. Signed-off-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>
64 lines
1.8 KiB
Diff
64 lines
1.8 KiB
Diff
From ee6c0081c03330045b3d4cde8421cd1d3a459609 Mon Sep 17 00:00:00 2001
|
|
From: Martin Liska <mliska@suse.cz>
|
|
Date: Fri, 15 Jun 2018 10:51:28 +0200
|
|
Subject: [PATCH] Partial backport r256656
|
|
|
|
2018-06-15 Martin Liska <mliska@suse.cz>
|
|
|
|
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.
|
|
|
|
From-SVN: r261621
|
|
---
|
|
|
|
Obtained from:
|
|
|
|
https://gcc.gnu.org/git/?p=gcc.git;a=patch;h=ee6c0081c03330045b3d4cde8421cd1d3a459609
|
|
|
|
The libcpp/ChangeLog hunk was modified to apply on top of gcc-5's libcpp/ChangeLog.
|
|
|
|
libcpp/ChangeLog | 12 ++++++++++++
|
|
libcpp/lex.c | 2 +-
|
|
2 files changed, 13 insertions(+), 1 deletion(-)
|
|
|
|
diff --git a/libcpp/ChangeLog b/libcpp/ChangeLog
|
|
index c920a05d438..a63abb04f5e 100644
|
|
--- a/libcpp/ChangeLog
|
|
+++ b/libcpp/ChangeLog
|
|
@@ -1,3 +1,15 @@
|
|
+2018-06-15 Martin Liska <mliska@suse.cz>
|
|
+
|
|
+ PR bootstrap/86162
|
|
+
|
|
+ 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.
|
|
+
|
|
2017-10-10 Release Manager
|
|
|
|
* GCC 5.5.0 released.
|
|
diff --git a/libcpp/lex.c b/libcpp/lex.c
|
|
index e5a0397f309..b789686f1c4 100644
|
|
--- a/libcpp/lex.c
|
|
+++ b/libcpp/lex.c
|
|
@@ -568,7 +568,7 @@ search_line_fast (const uchar *s, const uchar *end ATTRIBUTE_UNUSED)
|
|
{
|
|
vc m_nl, m_cr, m_bs, m_qm;
|
|
|
|
- data = *((const vc *)s);
|
|
+ data = __builtin_vec_vsx_ld (0, s);
|
|
s += 16;
|
|
|
|
m_nl = (vc) __builtin_vec_cmpeq(data, repl_nl);
|
|
--
|
|
2.27.0
|
|
|