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From: "Sam James" <sam@gentoo.org>
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Message-ID: <1742555997.ebea0f72bf6bcc9c53105a689beb6263047b35c8.sam@gentoo>
Subject: [gentoo-commits] proj/gcc-patches:master commit in: 15.0.0/gentoo/
X-VCS-Repository: proj/gcc-patches
X-VCS-Files: 15.0.0/gentoo/77_all_PR119376-Disable-clang-musttail.patch 15.0.0/gentoo/README.history
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X-VCS-Committer-Name: Sam James
X-VCS-Revision: ebea0f72bf6bcc9c53105a689beb6263047b35c8
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Date: Fri, 21 Mar 2025 11:20:11 +0000 (UTC)
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commit: ebea0f72bf6bcc9c53105a689beb6263047b35c8
Author: Sam James <sam <AT> gentoo <DOT> org>
AuthorDate: Fri Mar 21 11:19:57 2025 +0000
Commit: Sam James <sam <AT> gentoo <DOT> org>
CommitDate: Fri Mar 21 11:19:57 2025 +0000
URL: https://gitweb.gentoo.org/proj/gcc-patches.git/commit/?id=ebea0f72
15.0.0: drop musttail workaround
Jakub's committed several fixes now, so let's see what falls out.
Signed-off-by: Sam James <sam <AT> gentoo.org>
.../77_all_PR119376-Disable-clang-musttail.patch | 200 ---------------------
15.0.0/gentoo/README.history | 1 -
2 files changed, 201 deletions(-)
diff --git a/15.0.0/gentoo/77_all_PR119376-Disable-clang-musttail.patch b/15.0.0/gentoo/77_all_PR119376-Disable-clang-musttail.patch
deleted file mode 100644
index 3af4ab4..0000000
--- a/15.0.0/gentoo/77_all_PR119376-Disable-clang-musttail.patch
+++ /dev/null
@@ -1,200 +0,0 @@
-https://inbox.sourceware.org/gcc-patches/20250320013102.1336516-1-andi@firstfloor.org/
-
-From 592f60bef27cb60ea6405ca8603449fc4d92e640 Mon Sep 17 00:00:00 2001
-Message-ID: <592f60bef27cb60ea6405ca8603449fc4d92e640.1742435883.git.sam@gentoo.org>
-From: Andi Kleen <ak@gcc.gnu.org>
-Date: Wed, 19 Mar 2025 18:31:02 -0700
-Subject: [PATCH] PR119376: Disable clang musttail
-
-There are multiple reports (see PR 119376) now where semantic differences
-in the gcc musttail implementation break existing programs written for the clang
-variant.
-
-Even though that can be all hopefully fixed eventually,
-for the gcc 15 release it seems safer to disable clang::musttail,
-and only keep gnu::musttail.
-
-That means that programs that use __has_c_attribute to check for
-clang::musttail must opt-in explicitly.
-
-Reported-by: Sam James
-
-gcc/c/ChangeLog:
-
- PR ipa/119376
- * c-parser.cc (c_parser_handle_musttail): Drop clang namespace
- check.
-
-gcc/cp/ChangeLog:
-
- PR ipa/119376
- * parser.cc (cp_parser_jump_statement): Drop clang namespace
- check.
-
-gcc/ChangeLog:
-
- PR ipa/119376
- * doc/extend.texi: Drop clang::musttail reference.
-
-gcc/testsuite/ChangeLog:
-
-PR ipa/119376
- * c-c++-common/musttail23.c: Don't use clang::musttail
- * c-c++-common/musttail24.c: Dito.
- * c-c++-common/musttail3.c: Dito.
- * g++.dg/musttail14.C: Dito.
----
- gcc/c/c-parser.cc | 5 -----
- gcc/cp/parser.cc | 6 ------
- gcc/doc/extend.texi | 2 +-
- gcc/testsuite/c-c++-common/musttail23.c | 10 +++++-----
- gcc/testsuite/c-c++-common/musttail24.c | 6 ------
- gcc/testsuite/c-c++-common/musttail3.c | 6 +++---
- gcc/testsuite/g++.dg/musttail14.C | 4 ++--
- 7 files changed, 11 insertions(+), 28 deletions(-)
-
-diff --git a/gcc/c/c-parser.cc b/gcc/c/c-parser.cc
-index d49d5c58659f..79654448acaa 100644
---- a/gcc/c/c-parser.cc
-+++ b/gcc/c/c-parser.cc
-@@ -7409,11 +7409,6 @@ c_parser_handle_musttail (c_parser *parser, tree std_attrs, attr_state &attr)
- std_attrs = remove_attribute ("gnu", "musttail", std_attrs);
- attr.musttail_p = true;
- }
-- if (lookup_attribute ("clang", "musttail", std_attrs))
-- {
-- std_attrs = remove_attribute ("clang", "musttail", std_attrs);
-- attr.musttail_p = true;
-- }
- }
- return std_attrs;
- }
-diff --git a/gcc/cp/parser.cc b/gcc/cp/parser.cc
-index 2fb1dc5992d4..da7700b55c64 100644
---- a/gcc/cp/parser.cc
-+++ b/gcc/cp/parser.cc
-@@ -15342,12 +15342,6 @@ cp_parser_jump_statement (cp_parser* parser, tree &std_attrs)
- musttail_p = true;
- std_attrs = remove_attribute ("gnu", "musttail", std_attrs);
- }
-- /* Support this for compatibility. */
-- if (lookup_attribute ("clang", "musttail", std_attrs))
-- {
-- musttail_p = true;
-- std_attrs = remove_attribute ("clang", "musttail", std_attrs);
-- }
-
- tree ret_expr = expr;
- if (ret_expr && TREE_CODE (ret_expr) == TARGET_EXPR)
-diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
-index b919df914648..50f95e968ff9 100644
---- a/gcc/doc/extend.texi
-+++ b/gcc/doc/extend.texi
-@@ -10241,7 +10241,7 @@ have to optimize it to just @code{return 42 + 42;}.
- @cindex @code{musttail} statement attribute
- @item musttail
-
--The @code{gnu::musttail} or @code{clang::musttail} standard attribute
-+The @code{gnu::musttail} standard attribute
- or @code{musttail} GNU attribute can be applied to a @code{return} statement
- with a return-value expression that is a function call. It asserts that the
- call must be a tail call that does not allocate extra stack space, so it is
-diff --git a/gcc/testsuite/c-c++-common/musttail23.c b/gcc/testsuite/c-c++-common/musttail23.c
-index d2ba70b03250..1ceab1165129 100644
---- a/gcc/testsuite/c-c++-common/musttail23.c
-+++ b/gcc/testsuite/c-c++-common/musttail23.c
-@@ -19,10 +19,10 @@ foo (int x)
- [[gnu::musttail (1, "", 3)]] return bar (); /* { dg-error "'musttail' attribute does not take any arguments" } */
- /* { dg-error "expected" "" { target c } .-1 } */
- if (x == 3)
-- [[clang::musttail (1)]] return bar (); /* { dg-error "'musttail' attribute does not take any arguments" } */
-+ [[gnu::musttail (1)]] return bar (); /* { dg-error "'musttail' attribute does not take any arguments" } */
- /* { dg-error "expected" "" { target c } .-1 } */
- if (x == 4)
-- [[clang::musttail (1, "", 3)]] return bar (); /* { dg-error "'musttail' attribute does not take any arguments" } */
-+ [[gnu::musttail (1, "", 3)]] return bar (); /* { dg-error "'musttail' attribute does not take any arguments" } */
- /* { dg-error "expected" "" { target c } .-1 } */
- if (x == 5)
- __attribute__((fallthrough, musttail)) return bar (); /* { dg-warning "attribute 'musttail' mixed with other attributes on 'return' statement" "" { target c } } */
-@@ -32,14 +32,14 @@ foo (int x)
- [[fallthrough]] [[gnu::musttail]] return bar (); /* { dg-warning "'fallthrough' attribute ignored" "" { target c } } */
- /* { dg-warning "attributes at the beginning of statement are ignored" "" { target c++ } .-1 } */
- if (x == 7)
-- [[clang::musttail, fallthrough]] return bar (); /* { dg-warning "'fallthrough' attribute ignored" "" { target c } } */
-+ [[gnu::musttail, fallthrough]] return bar (); /* { dg-warning "'fallthrough' attribute ignored" "" { target c } } */
- /* { dg-warning "attributes at the beginning of statement are ignored" "" { target c++ } .-1 } */
- if (x == 8)
- __attribute__((musttail, musttail)) return bar ();
- if (x == 9)
- [[gnu::musttail, gnu::musttail]] return bar ();
- if (x == 10)
-- [[clang::musttail]] [[clang::musttail]] return bar ();
-+ [[gnu::musttail]] [[gnu::musttail]] return bar ();
- if (x == 11)
-- [[clang::musttail]] [[gnu::musttail]] return bar ();
-+ [[gnu::musttail]] [[gnu::musttail]] return bar ();
- }
-diff --git a/gcc/testsuite/c-c++-common/musttail24.c b/gcc/testsuite/c-c++-common/musttail24.c
-index 10c2d3f188d8..26b8dbfb4c8e 100644
---- a/gcc/testsuite/c-c++-common/musttail24.c
-+++ b/gcc/testsuite/c-c++-common/musttail24.c
-@@ -8,14 +8,8 @@
- #if !__has_cpp_attribute (gnu::musttail)
- #error missing gnu::musttail attribute
- #endif
--#if !__has_cpp_attribute (clang::musttail)
--#error missing clang::musttail attribute
--#endif
- #else
- #if !__has_c_attribute (gnu::musttail)
- #error missing gnu::musttail attribute
- #endif
--#if !__has_c_attribute (clang::musttail)
--#error missing clang::musttail attribute
--#endif
- #endif
-diff --git a/gcc/testsuite/c-c++-common/musttail3.c b/gcc/testsuite/c-c++-common/musttail3.c
-index 7499fd6460b4..daedca28852a 100644
---- a/gcc/testsuite/c-c++-common/musttail3.c
-+++ b/gcc/testsuite/c-c++-common/musttail3.c
-@@ -11,7 +11,7 @@ struct str
- cstruct (int x)
- {
- if (x < 10)
-- [[clang::musttail]] return cstruct (x + 1);
-+ [[gnu::musttail]] return cstruct (x + 1);
- return ((struct str){ x, 0 });
- }
-
-@@ -19,11 +19,11 @@ int
- foo (int x)
- {
- if (x < 10)
-- [[clang::musttail]] return foo2 (x, 29);
-+ [[gnu::musttail]] return foo2 (x, 29);
- if (x < 100)
- {
- int k = foo (x + 1);
-- [[clang::musttail]] return k; /* { dg-error "cannot tail-call: " } */
-+ [[gnu::musttail]] return k; /* { dg-error "cannot tail-call: " } */
- }
- return x;
- }
-diff --git a/gcc/testsuite/g++.dg/musttail14.C b/gcc/testsuite/g++.dg/musttail14.C
-index 810b45546d61..e4764a3bc03b 100644
---- a/gcc/testsuite/g++.dg/musttail14.C
-+++ b/gcc/testsuite/g++.dg/musttail14.C
-@@ -58,8 +58,8 @@ garply (int x)
- case 3:
- __attribute__(()) [[gnu::musttail]] __attribute__(()) [[]] __attribute__(()) return qux (45);
- case 4:
-- [[]] __attribute__(()) [[clang::musttail]] __attribute__(()) [[]] return corge (46);
-+ [[]] __attribute__(()) [[gnu::musttail]] __attribute__(()) [[]] return corge (46);
- default:
-- __attribute__(()) [[clang::musttail]] __attribute__(()) [[]] __attribute__(()) return freddy (47);
-+ __attribute__(()) [[gnu::musttail]] __attribute__(()) [[]] __attribute__(()) return freddy (47);
- }
- }
---
-2.49.0
-
diff --git a/15.0.0/gentoo/README.history b/15.0.0/gentoo/README.history
index c3b9934..5543b1c 100644
--- a/15.0.0/gentoo/README.history
+++ b/15.0.0/gentoo/README.history
@@ -1,6 +1,5 @@
48 ????
- + 77_all_PR119376-Disable-clang-musttail.patch
+ 78_all_PR118615.patch
+ 79_all_PR117811-arm-neon-shift.patch