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https://bugs.gentoo.org/677724
Apply file-specific target-specific optimisation to constructors and
destructors. Fixes leaking of target-specific options from one unit
to another. On firefox this change fixes -mavx2 leak from files guarded
by CPU flag detection into other files.
From 332446ac24e5b37f441f7c9cb0b97fc36f9f0aa3 Mon Sep 17 00:00:00 2001
From: hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Sat, 15 Dec 2018 10:31:37 +0000
Subject: [PATCH] * ipa.c (cgraph_build_static_cdtor_1): Add
OPTIMIZATION and TARGET parameters. (cgraph_build_static_cdtor):
Update. (build_cdtor): Use OPTIMIZATION and TARGET of the first real
cdtor callsed.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@267168 138bc75d-0d04-0410-961f-82ee72b054a4
---
gcc/ipa.c | 12 +++++++++---
--- a/gcc/ipa.c
+++ b/gcc/ipa.c
@@ -831,7 +831,9 @@ ipa_discover_variable_flags (void)
be produced. */
static void
-cgraph_build_static_cdtor_1 (char which, tree body, int priority, bool final)
+cgraph_build_static_cdtor_1 (char which, tree body, int priority, bool final,
+ tree optimization,
+ tree target)
{
static int counter = 0;
char which_buf[16];
@@ -862,6 +864,8 @@ cgraph_build_static_cdtor_1 (char which, tree body, int priority, bool final)
TREE_STATIC (decl) = 1;
TREE_USED (decl) = 1;
+ DECL_FUNCTION_SPECIFIC_OPTIMIZATION (decl) = optimization;
+ DECL_FUNCTION_SPECIFIC_TARGET (decl) = target;
DECL_ARTIFICIAL (decl) = 1;
DECL_IGNORED_P (decl) = 1;
DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT (decl) = 1;
@@ -911,7 +915,7 @@ cgraph_build_static_cdtor_1 (char which, tree body, int priority, bool final)
void
cgraph_build_static_cdtor (char which, tree body, int priority)
{
- cgraph_build_static_cdtor_1 (which, body, priority, false);
+ cgraph_build_static_cdtor_1 (which, body, priority, false, NULL, NULL);
}
/* When target does not have ctors and dtors, we call all constructor
@@ -993,7 +997,9 @@ build_cdtor (bool ctor_p, const vec<tree> &cdtors)
gcc_assert (body != NULL_TREE);
/* Generate a function to call all the function of like
priority. */
- cgraph_build_static_cdtor_1 (ctor_p ? 'I' : 'D', body, priority, true);
+ cgraph_build_static_cdtor_1 (ctor_p ? 'I' : 'D', body, priority, true,
+ DECL_FUNCTION_SPECIFIC_OPTIMIZATION (cdtors[0]),
+ DECL_FUNCTION_SPECIFIC_TARGET (cdtors[0]));
}
}
--
2.20.1
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