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11.0.1-0.2

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Jakub Jelinek 2021-03-19 15:52:54 +01:00
parent c3f10cec8a
commit e25bc11637
10 changed files with 1047 additions and 44 deletions
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2
.gitignore vendored
View File

@ -35,3 +35,5 @@
/gcc-11.0.0-20210210.tar.xz
/gcc-11.0.0-20210225.tar.xz
/gcc-11.0.1-20210307.tar.xz
/gcc-11.0.1-20210319.tar.xz
/isl-0.18.tar.bz2

125
gcc.spec
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@ -1,4 +1,4 @@
%global DATE 20210307
%global DATE 20210319
%global gitrev e13870b7c083e39ab17cc827bab5cb45387e8f19
%global gcc_version 11.0.1
%global gcc_major 11
@ -145,7 +145,8 @@ Source1: nvptx-tools-%{nvptx_tools_gitrev}.tar.xz
# git --git-dir=newlib-cygwin-dir.tmp/.git archive --prefix=newlib-cygwin-%%{newlib_cygwin_gitrev}/ %%{newlib_cygwin_gitrev} ":(exclude)newlib/libc/sys/linux/include/rpc/*.[hx]" | xz -9e > newlib-cygwin-%%{newlib_cygwin_gitrev}.tar.xz
# rm -rf newlib-cygwin-dir.tmp
Source2: newlib-cygwin-%{newlib_cygwin_gitrev}.tar.xz
%global isl_version 0.16.1
%global isl_version 0.18
Source3: https://gcc.gnu.org/pub/gcc/infrastructure/isl-%{isl_version}.tar.bz2
URL: http://gcc.gnu.org
# Need binutils with -pie support >= 2.14.90.0.4-4
# Need binutils which can omit dot symbols and overlap .opd on ppc64 >= 2.15.91.0.2-4
@ -201,15 +202,6 @@ BuildRequires: gcc-gnat >= 3.1, libgnat >= 3.1
%ifarch ia64
BuildRequires: libunwind >= 0.98
%endif
%if %{build_isl}
BuildRequires: isl = %{isl_version}
BuildRequires: isl-devel = %{isl_version}
%if 0%{?__isa_bits} == 64
Requires: libisl.so.15()(64bit)
%else
Requires: libisl.so.15
%endif
%endif
%if %{build_libstdcxx_docs}
BuildRequires: doxygen >= 1.7.1
BuildRequires: graphviz, dblatex, texlive-collection-latex, docbook5-style-xsl
@ -265,14 +257,20 @@ Patch2: gcc11-sparc-config-detection.patch
Patch3: gcc11-libgomp-omp_h-multilib.patch
Patch4: gcc11-libtool-no-rpath.patch
Patch5: gcc11-isl-dl.patch
Patch6: gcc11-libstdc++-docs.patch
Patch7: gcc11-no-add-needed.patch
Patch8: gcc11-foffload-default.patch
Patch9: gcc11-Wno-format-security.patch
Patch10: gcc11-rh1574936.patch
Patch11: gcc11-d-shared-libphobos.patch
Patch12: gcc11-pr99378-revert.patch
Patch13: gcc11-pr99388.patch
Patch6: gcc11-isl-dl2.patch
Patch7: gcc11-libstdc++-docs.patch
Patch8: gcc11-no-add-needed.patch
Patch9: gcc11-foffload-default.patch
Patch10: gcc11-Wno-format-security.patch
Patch11: gcc11-rh1574936.patch
Patch12: gcc11-d-shared-libphobos.patch
Patch13: gcc11-pr99378-revert.patch
Patch14: gcc11-pr99388.patch
Patch15: gcc11-pr91710.patch
Patch16: gcc11-pr99230.patch
Patch17: gcc11-pr99490.patch
Patch18: gcc11-pr99562.patch
Patch19: gcc11-pr99650.patch
Patch100: gcc11-fortran-fdec-duplicates.patch
Patch101: gcc11-fortran-flogical-as-integer.patch
@ -776,26 +774,32 @@ by default add PTX code into the binaries, which can be offloaded
to NVidia PTX capable devices if available.
%prep
%setup -q -n gcc-%{version}-%{DATE} -a 1 -a 2
%setup -q -n gcc-%{version}-%{DATE} -a 1 -a 2 -a 3
%patch0 -p0 -b .hack~
%patch2 -p0 -b .sparc-config-detection~
%patch3 -p0 -b .libgomp-omp_h-multilib~
%patch4 -p0 -b .libtool-no-rpath~
%if %{build_isl}
%patch5 -p0 -b .isl-dl~
%patch6 -p0 -b .isl-dl2~
%endif
%if %{build_libstdcxx_docs}
%patch6 -p0 -b .libstdc++-docs~
%patch7 -p0 -b .libstdc++-docs~
%endif
%patch7 -p0 -b .no-add-needed~
%patch8 -p0 -b .foffload-default~
%patch9 -p0 -b .Wno-format-security~
%patch8 -p0 -b .no-add-needed~
%patch9 -p0 -b .foffload-default~
%patch10 -p0 -b .Wno-format-security~
%if 0%{?fedora} >= 29 || 0%{?rhel} > 7
%patch10 -p0 -b .rh1574936~
%patch11 -p0 -b .rh1574936~
%endif
%patch11 -p0 -b .d-shared-libphobos~
%patch12 -p0 -b .pr99378-revert~
%patch13 -p0 -b .pr99388~
%patch12 -p0 -b .d-shared-libphobos~
%patch13 -p0 -b .pr99378-revert~
%patch14 -p0 -b .pr99388~
%patch15 -p0 -b .pr91710~
%patch16 -p0 -b .pr99230~
%patch17 -p0 -b .pr99490~
%patch18 -p0 -b .pr99562~
%patch19 -p0 -b .pr99650~
%if 0%{?rhel} >= 9
%patch100 -p1 -b .fortran-fdec-duplicates~
@ -910,6 +914,28 @@ rm -rf obj-%{gcc_target_platform}
mkdir obj-%{gcc_target_platform}
cd obj-%{gcc_target_platform}
%if %{build_isl}
mkdir isl-build isl-install
%ifarch s390 s390x
ISL_FLAG_PIC=-fPIC
%else
ISL_FLAG_PIC=-fpic
%endif
cd isl-build
sed -i 's|libisl|libgcc11privateisl|g' \
../../isl-%{isl_version}/Makefile.{am,in}
../../isl-%{isl_version}/configure \
CC=/usr/bin/gcc CXX=/usr/bin/g++ \
CFLAGS="${CFLAGS:-%optflags} $ISL_FLAG_PIC" --prefix=`cd ..; pwd`/isl-install
make %{?_smp_mflags}
make install
cd ../isl-install/lib
rm libgcc11privateisl.so{,.15}
mv libgcc11privateisl.so.15.3.0 libisl.so.15
ln -sf libisl.so.15 libisl.so
cd ../..
%endif
enablelgo=
enablelada=
enablelobjc=
@ -953,7 +979,7 @@ CONFIGURE_OPTS="\
%endif
--enable-plugin --enable-initfini-array \
%if %{build_isl}
--with-isl \
--with-isl=`pwd`/isl-install \
%else
--without-isl \
%endif
@ -1097,6 +1123,10 @@ make jit.sphinx.html
make jit.sphinx.install-html jit_htmldir=`pwd`/../../rpm.doc/libgccjit-devel/html
cd ..
%if %{build_isl}
cp -a isl-install/lib/libisl.so.15 gcc/
%endif
# Make generated man pages even if Pod::Man is not new enough
perl -pi -e 's/head3/head2/' ../contrib/texi2pod.pl
for i in ../gcc/doc/*.texi; do
@ -1223,6 +1253,10 @@ chmod 644 %{buildroot}%{_infodir}/gnat*
FULLPATH=%{buildroot}%{_prefix}/lib/gcc/%{gcc_target_platform}/%{gcc_major}
FULLEPATH=%{buildroot}%{_prefix}/libexec/gcc/%{gcc_target_platform}/%{gcc_major}
%if %{build_isl}
cp -a isl-install/lib/libisl.so.15 $FULLPATH/
%endif
# fix some things
ln -sf gcc %{buildroot}%{_prefix}/bin/cc
rm -f %{buildroot}%{_prefix}/lib/cpp
@ -2296,6 +2330,9 @@ end
%if %{build_libasan}
%{_prefix}/lib/gcc/%{gcc_target_platform}/%{gcc_major}/libsanitizer.spec
%endif
%if %{build_isl}
%{_prefix}/lib/gcc/%{gcc_target_platform}/%{gcc_major}/libisl.so.*
%endif
%ifarch sparcv9 ppc
%dir %{_prefix}/lib/gcc/%{gcc_target_platform}/%{gcc_major}/64
%{_prefix}/lib/gcc/%{gcc_target_platform}/%{gcc_major}/64/crt*.o
@ -3097,6 +3134,36 @@ end
%endif
%changelog
* Fri Mar 19 2021 Jakub Jelinek <jakub@redhat.com> 11.0.1-0.2
- update from trunk
- PRs c++/90448, c++/96268, c++/96749, c++/97973, c++/98480, c++/98704,
c++/99047, c++/99108, c++/99238, c++/99248, c++/99285, c++/99423,
c++/99436, c++/99459, c++/99472, c++/99496, c++/99500, c++/99507,
c++/99508, c++/99509, c++/99528, c++/99601, c++/99613, c++/99617,
fortran/49278, fortran/96983, fortran/97927, fortran/98858,
fortran/99125, fortran/99205, fortran/99345, fortran/99514,
fortran/99545, ipa/99517, libstdc++/99172, libstdc++/99341,
libstdc++/99413, libstdc++/99536, libstdc++/99537, middle-end/97631,
middle-end/98266, middle-end/99502, middle-end/99641, objc++/49070,
sanitizer/98920, target/98092, target/98959, target/99070,
target/99094, target/99102, target/99422, target/99437, target/99454,
target/99463, target/99464, target/99492, target/99504, target/99542,
target/99563, target/99592, target/99600, testsuite/97680,
testsuite/98245, testsuite/99292, testsuite/99498, testsuite/99626,
testsuite/99636, tree-optimization/98834, tree-optimization/99305,
tree-optimization/99489, tree-optimization/99510,
tree-optimization/99523, tree-optimization/99544
- fix ARM ICE in neon_output_shift_immediate (#1922599, PR target/99593)
- avoid false positive aarch64 -Wpsabi notes in some cases (PR target/91710)
- fix a -fcompare-debug failure caused by C FE bug (PR debug/99230)
- fix up -gdwarf-5 -gsplit-dwarf ranges handling (PR debug/99490)
- fix up handling of > 64 bit constants in dwarf2out (PR debug/99562,
PR debug/66728)
- reject invalid C++ structured bindings that need reference to void
(PR c++/99650)
- include private isl 0.18 in the package instead of relying on old
distro version
* Sun Mar 7 2021 Jakub Jelinek <jakub@redhat.com> 11.0.1-0.1
- update from trunk
- PRs ada/98996, ada/99020, ada/99095, ada/99264, analyzer/96374,

71
gcc11-isl-dl2.patch Normal file
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@ -0,0 +1,71 @@
2011-04-04 Jakub Jelinek <jakub@redhat.com>
* toplev.c (toplev_main_argv): New variable.
(toplev_main): Initialize it.
* graphite.c (init_isl_pointers): Load libisl.so.15 from gcc's private
directory.
--- gcc/toplev.c.jj 2008-12-09 23:59:10.000000000 +0100
+++ gcc/toplev.c 2009-01-27 14:33:52.000000000 +0100
@@ -117,6 +117,8 @@ static void compile_file (void);
/* True if we don't need a backend (e.g. preprocessing only). */
static bool no_backend;
+const char **toplev_main_argv;
+
/* Decoded options, and number of such options. */
struct cl_decoded_option *save_decoded_options;
unsigned int save_decoded_options_count;
@@ -2287,6 +2289,8 @@ toplev::main (int argc, char **argv)
expandargv (&argc, &argv);
+ toplev_main_argv = CONST_CAST2 (const char **, char **, argv);
+
/* Initialization of GCC's environment, and diagnostics. */
general_init (argv[0], m_init_signals);
--- gcc/graphite.c.jj 2010-12-01 10:24:32.000000000 -0500
+++ gcc/graphite.c 2010-12-01 11:46:07.832118193 -0500
@@ -64,11 +64,39 @@ __typeof (isl_pointers__) isl_pointers__
static bool
init_isl_pointers (void)
{
- void *h;
+ void *h = NULL;
+ extern const char **toplev_main_argv;
+ char *buf, *p;
+ size_t len;
if (isl_pointers__.inited)
return isl_pointers__.h != NULL;
- h = dlopen ("libisl.so.15", RTLD_LAZY);
+ len = progname - toplev_main_argv[0];
+ buf = XALLOCAVAR (char, len + sizeof "libisl.so.15");
+ memcpy (buf, toplev_main_argv[0], len);
+ strcpy (buf + len, "libisl.so.15");
+ len += sizeof "libisl.so.15";
+ p = strstr (buf, "/libexec/");
+ if (p != NULL)
+ {
+ while (1)
+ {
+ char *q = strstr (p + 8, "/libexec/");
+ if (q == NULL)
+ break;
+ p = q;
+ }
+ memmove (p + 4, p + 8, len - (p + 8 - buf));
+ h = dlopen (buf, RTLD_LAZY);
+ if (h == NULL)
+ {
+ len = progname - toplev_main_argv[0];
+ memcpy (buf, toplev_main_argv[0], len);
+ strcpy (buf + len, "libisl.so.15");
+ }
+ }
+ if (h == NULL)
+ h = dlopen (buf, RTLD_LAZY);
isl_pointers__.h = h;
if (h == NULL)
return false;

96
gcc11-pr91710.patch Normal file
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@ -0,0 +1,96 @@
2021-03-18 Jakub Jelinek <jakub@redhat.com>
PR target/91710
* config/aarch64/aarch64.c (aarch64_function_arg_alignment): Change
abi_break argument from bool * to unsigned *, store there the pre-GCC 9
alignment.
(aarch64_layout_arg, aarch64_gimplify_va_arg_expr): Adjust callers.
(aarch64_function_arg_regno_p): Likewise. Only emit -Wpsabi note if
the old and new alignment after applying MIN/MAX to it is different.
* gcc.target/aarch64/pr91710.c: New test.
--- gcc/config/aarch64/aarch64.c.jj 2021-03-18 15:14:51.721425223 +0100
+++ gcc/config/aarch64/aarch64.c 2021-03-18 16:35:04.437115447 +0100
@@ -5938,9 +5938,9 @@ aarch64_vfp_is_call_candidate (cumulativ
static unsigned int
aarch64_function_arg_alignment (machine_mode mode, const_tree type,
- bool *abi_break)
+ unsigned int *abi_break)
{
- *abi_break = false;
+ *abi_break = 0;
if (!type)
return GET_MODE_ALIGNMENT (mode);
@@ -5982,7 +5982,7 @@ aarch64_function_arg_alignment (machine_
if (bitfield_alignment > alignment)
{
- *abi_break = true;
+ *abi_break = alignment;
return bitfield_alignment;
}
@@ -6004,7 +6004,7 @@ aarch64_layout_arg (cumulative_args_t pc
int ncrn, nvrn, nregs;
bool allocate_ncrn, allocate_nvrn;
HOST_WIDE_INT size;
- bool abi_break;
+ unsigned int abi_break;
/* We need to do this once per argument. */
if (pcum->aapcs_arg_processed)
@@ -6322,14 +6322,19 @@ aarch64_function_arg_regno_p (unsigned r
static unsigned int
aarch64_function_arg_boundary (machine_mode mode, const_tree type)
{
- bool abi_break;
+ unsigned int abi_break;
unsigned int alignment = aarch64_function_arg_alignment (mode, type,
&abi_break);
+ alignment = MIN (MAX (alignment, PARM_BOUNDARY), STACK_BOUNDARY);
if (abi_break & warn_psabi)
- inform (input_location, "parameter passing for argument of type "
- "%qT changed in GCC 9.1", type);
+ {
+ abi_break = MIN (MAX (abi_break, PARM_BOUNDARY), STACK_BOUNDARY);
+ if (alignment != abi_break)
+ inform (input_location, "parameter passing for argument of type "
+ "%qT changed in GCC 9.1", type);
+ }
- return MIN (MAX (alignment, PARM_BOUNDARY), STACK_BOUNDARY);
+ return alignment;
}
/* Implement TARGET_GET_RAW_RESULT_MODE and TARGET_GET_RAW_ARG_MODE. */
@@ -16616,7 +16621,7 @@ aarch64_gimplify_va_arg_expr (tree valis
f_stack, NULL_TREE);
size = int_size_in_bytes (type);
- bool abi_break;
+ unsigned int abi_break;
align
= aarch64_function_arg_alignment (mode, type, &abi_break) / BITS_PER_UNIT;
--- gcc/testsuite/gcc.target/aarch64/pr91710.c.jj 2021-03-18 16:42:33.529232710 +0100
+++ gcc/testsuite/gcc.target/aarch64/pr91710.c 2021-03-18 16:42:07.271518121 +0100
@@ -0,0 +1,16 @@
+/* PR target/91710 */
+/* { dg-do compile } */
+
+struct S { unsigned int i:4; };
+
+unsigned int test1(struct S s) { /* { dg-bogus "parameter passing for argument of type" } */
+ return s.i;
+}
+
+unsigned int test2(unsigned x, struct S s) { /* { dg-bogus "parameter passing for argument of type" } */
+ return x - s.i;
+}
+
+unsigned int test3(unsigned x, unsigned y, struct S s) { /* { dg-bogus "parameter passing for argument of type" } */
+ return x - y - s.i;
+}

137
gcc11-pr99230.patch Normal file
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@ -0,0 +1,137 @@
2021-03-18 Jakub Jelinek <jakub@redhat.com>
PR debug/99230
* c-gimplify.c (c_genericize_control_stmt): Handle STATEMENT_LIST.
* cp-gimplify.c (cp_genericize_r) <case STATEMENT_LIST>: Remove
special code, instead call c_genericize_control_stmt.
* gcc.dg/pr99230.c: New test.
--- gcc/c-family/c-gimplify.c.jj 2021-01-04 10:25:50.402102825 +0100
+++ gcc/c-family/c-gimplify.c 2021-03-17 19:19:20.052702095 +0100
@@ -497,6 +497,35 @@ c_genericize_control_stmt (tree *stmt_p,
genericize_omp_for_stmt (stmt_p, walk_subtrees, data, func, lh);
break;
+ case STATEMENT_LIST:
+ if (TREE_SIDE_EFFECTS (stmt))
+ {
+ tree_stmt_iterator i;
+ int nondebug_stmts = 0;
+ bool clear_side_effects = true;
+ /* Genericization can clear TREE_SIDE_EFFECTS, e.g. when
+ transforming an IF_STMT into COND_EXPR. If such stmt
+ appears in a STATEMENT_LIST that contains only that
+ stmt and some DEBUG_BEGIN_STMTs, without -g where the
+ STATEMENT_LIST wouldn't be present at all the resulting
+ expression wouldn't have TREE_SIDE_EFFECTS set, so make sure
+ to clear it even on the STATEMENT_LIST in such cases. */
+ for (i = tsi_start (stmt); !tsi_end_p (i); tsi_next (&i))
+ {
+ tree t = tsi_stmt (i);
+ if (TREE_CODE (t) != DEBUG_BEGIN_STMT && nondebug_stmts < 2)
+ nondebug_stmts++;
+ walk_tree_1 (tsi_stmt_ptr (i), func, data, NULL, lh);
+ if (TREE_CODE (t) != DEBUG_BEGIN_STMT
+ && (nondebug_stmts > 1 || TREE_SIDE_EFFECTS (tsi_stmt (i))))
+ clear_side_effects = false;
+ }
+ if (clear_side_effects)
+ TREE_SIDE_EFFECTS (stmt) = 0;
+ *walk_subtrees = 0;
+ }
+ break;
+
default:
break;
}
--- gcc/cp/cp-gimplify.c.jj 2021-03-04 09:42:27.602123905 +0100
+++ gcc/cp/cp-gimplify.c 2021-03-17 19:38:42.743888589 +0100
@@ -1464,35 +1464,6 @@ cp_genericize_r (tree *stmt_p, int *walk
walk_subtrees = 0;
break;
- case STATEMENT_LIST:
- if (TREE_SIDE_EFFECTS (stmt))
- {
- tree_stmt_iterator i;
- int nondebug_stmts = 0;
- bool clear_side_effects = true;
- /* Genericization can clear TREE_SIDE_EFFECTS, e.g. when
- transforming an IF_STMT into COND_EXPR. If such stmt
- appears in a STATEMENT_LIST that contains only that
- stmt and some DEBUG_BEGIN_STMTs, without -g where the
- STATEMENT_LIST wouldn't be present at all the resulting
- expression wouldn't have TREE_SIDE_EFFECTS set, so make sure
- to clear it even on the STATEMENT_LIST in such cases. */
- for (i = tsi_start (stmt); !tsi_end_p (i); tsi_next (&i))
- {
- tree t = tsi_stmt (i);
- if (TREE_CODE (t) != DEBUG_BEGIN_STMT && nondebug_stmts < 2)
- nondebug_stmts++;
- cp_walk_tree (tsi_stmt_ptr (i), cp_genericize_r, data, NULL);
- if (TREE_CODE (t) != DEBUG_BEGIN_STMT
- && (nondebug_stmts > 1 || TREE_SIDE_EFFECTS (tsi_stmt (i))))
- clear_side_effects = false;
- }
- if (clear_side_effects)
- TREE_SIDE_EFFECTS (stmt) = 0;
- *walk_subtrees = 0;
- }
- break;
-
case OMP_DISTRIBUTE:
/* Need to explicitly instantiate copy ctors on class iterators of
composite distribute parallel for. */
@@ -1566,6 +1537,7 @@ cp_genericize_r (tree *stmt_p, int *walk
case OMP_SIMD:
case OMP_LOOP:
case OACC_LOOP:
+ case STATEMENT_LIST:
/* These cases are handled by shared code. */
c_genericize_control_stmt (stmt_p, walk_subtrees, data,
cp_genericize_r, cp_walk_subtrees);
--- gcc/testsuite/gcc.dg/pr99230.c.jj 2021-03-17 19:34:26.633711074 +0100
+++ gcc/testsuite/gcc.dg/pr99230.c 2021-03-17 19:33:30.210332887 +0100
@@ -0,0 +1,40 @@
+/* PR debug/99230 */
+/* { dg-do compile } */
+/* { dg-options "-O2 --param logical-op-non-short-circuit=0 -fcompare-debug --param=jump-table-max-growth-ratio-for-speed=5000" } */
+
+extern void fn2 (void);
+extern void fn3 (int);
+int a, b;
+void
+fn1 (void)
+{
+ int c;
+ short d;
+ switch (a) {
+ case 22000:
+ fn2 ();
+ case 22300:
+ b = 0;
+ case 22600:
+ case 22601:
+ case 22900:
+ fn3 (1);
+ case 20100:
+ fn3 (2);
+ case 20200:
+ fn3 (3);
+ case 20300:
+ fn3 (4);
+ case 20400:
+ fn3 (5);
+ case 20310:
+ fn3 (4);
+ case 20410:
+ fn3 (5);
+ }
+ if (d || c) {
+ do
+ ;
+ while (0);
+ }
+}

101
gcc11-pr99378-revert.patch
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@ -1,21 +1,94 @@
Revert:
2021-03-18 Vladimir N. Makarov <vmakarov@redhat.com>
PR target/99422
* lra-constraints.c (process_address_1): Use lookup_constraint
only for a single constraint.
2021-03-10 Vladimir N. Makarov <vmakarov@redhat.com>
PR target/99422
* lra-constraints.c (process_address_1): Don't check unknown
constraint, use X for empty constraint.
2021-03-09 Vladimir N. Makarov <vmakarov@redhat.com>
PR target/99454
* lra-constraints.c (process_address_1): Process constraint 'g'
separately and digital constraints containing more one digit.
2021-03-09 Vladimir N. Makarov <vmakarov@redhat.com>
PR target/99454
* lra-constraints.c (process_address_1): Process 0..9 constraints
in process_address_1.
2021-03-08 Vladimir N. Makarov <vmakarov@redhat.com>
PR target/99422
* lra-constraints.c (skip_contraint_modifiers): New function.
(process_address_1): Use it before lookup_constraint call.
2021-03-05 Vladimir N. Makarov <vmakarov@redhat.com>
PR target/99378
* lra-constraints.c (process_address_1): Skip decomposing address
for asm insn operand with unknown constraint.
--- gcc/lra-constraints.c
+++ gcc/lra-constraints.c
@@ -3450,9 +3450,8 @@ process_address_1 (int nop, bool check_only_p,
i.e. bcst_mem_operand in i386 backend. */
else if (MEM_P (mem)
&& !(INSN_CODE (curr_insn) < 0
- && (cn == CONSTRAINT__UNKNOWN
- || (get_constraint_type (cn) == CT_FIXED_FORM
- && constraint_satisfied_p (op, cn)))))
+ && get_constraint_type (cn) == CT_FIXED_FORM
+ && constraint_satisfied_p (op, cn)))
decompose_mem_address (&ad, mem);
else if (GET_CODE (op) == SUBREG
&& MEM_P (SUBREG_REG (op)))
--- gcc/lra-constraints.c.jj 2021-03-19 13:53:38.094778251 +0100
+++ gcc/lra-constraints.c 2021-03-19 14:23:16.017389900 +0100
@@ -3392,21 +3392,6 @@ equiv_address_substitution (struct addre
return change_p;
}
-/* Skip all modifiers and whitespaces in constraint STR and return the
- result. */
-static const char *
-skip_contraint_modifiers (const char *str)
-{
- for (;;str++)
- switch (*str)
- {
- case '+' : case '&' : case '=': case '*': case ' ': case '\t':
- case '$': case '^' : case '%': case '?': case '!':
- break;
- default: return str;
- }
-}
-
/* Major function to make reloads for an address in operand NOP or
check its correctness (If CHECK_ONLY_P is true). The supported
cases are:
@@ -3441,8 +3426,8 @@ process_address_1 (int nop, bool check_o
HOST_WIDE_INT scale;
rtx op = *curr_id->operand_loc[nop];
rtx mem = extract_mem_from_operand (op);
- const char *constraint;
- enum constraint_num cn;
+ const char *constraint = curr_static_id->operand[nop].constraint;
+ enum constraint_num cn = lookup_constraint (constraint);
bool change_p = false;
if (MEM_P (mem)
@@ -3450,21 +3435,6 @@ process_address_1 (int nop, bool check_o
&& GET_CODE (XEXP (mem, 0)) == SCRATCH)
return false;
- constraint
- = skip_contraint_modifiers (curr_static_id->operand[nop].constraint);
- if (IN_RANGE (constraint[0], '0', '9'))
- {
- char *end;
- unsigned long dup = strtoul (constraint, &end, 10);
- constraint
- = skip_contraint_modifiers (curr_static_id->operand[dup].constraint);
- }
- if (*skip_contraint_modifiers (constraint
- + CONSTRAINT_LEN (constraint[0],
- constraint)) != '\0')
- cn = CONSTRAINT__UNKNOWN;
- else
- cn = lookup_constraint (*constraint == '\0' ? "X" : constraint);
if (insn_extra_address_constraint (cn)
/* When we find an asm operand with an address constraint that
doesn't satisfy address_operand to begin with, we clear

473
gcc11-pr99490.patch Normal file
View File

@ -0,0 +1,473 @@
2021-03-12 Jakub Jelinek <jakub@redhat.com>
PR debug/99490
* dwarf2out.c (debug_ranges_dwo_section): New variable.
(DW_RANGES_IDX_SKELETON): Define.
(struct dw_ranges): Add begin_entry and end_entry members.
(DEBUG_DWO_RNGLISTS_SECTION): Define.
(add_ranges_num): Adjust r initializer for addition of *_entry
members.
(add_ranges_by_labels): For -gsplit-dwarf and force_direct,
set idx to DW_RANGES_IDX_SKELETON.
(index_rnglists): Don't set r->idx if it is equal to
DW_RANGES_IDX_SKELETON. Initialize r->begin_entry and
r->end_entry for -gsplit-dwarf if those will be needed by
output_rnglists.
(output_rnglists): Add DWO argument. If true, switch to
debug_ranges_dwo_section rather than debug_ranges_section.
Adjust l1/l2 label indexes. Only output the offset table when
dwo is true and don't include in there the skeleton range
entry if present. For -gsplit-dwarf, skip ranges that belong
to the other rnglists section. Change return type from void
to bool and return true if there are any range entries for
the other section. For dwarf_split_debug_info use
DW_RLE_startx_endx, DW_RLE_startx_length and DW_RLE_base_addressx
entries instead of DW_RLE_start_end, DW_RLE_start_length and
DW_RLE_base_address.
(init_sections_and_labels): Initialize debug_ranges_dwo_section
if -gsplit-dwarf and DWARF >= 5. Adjust ranges_section_label
and range_base_label indexes.
(dwarf2out_finish): Call index_rnglists earlier before finalizing
.debug_addr. Never emit DW_AT_rnglists_base attribute. For
-gsplit-dwarf and DWARF >= 5 call output_rnglists up to twice
with different dwo arguments.
(dwarf2out_c_finalize): Clear debug_ranges_dwo_section.
--- gcc/dwarf2out.c.jj 2021-03-10 17:36:37.037537129 +0100
+++ gcc/dwarf2out.c 2021-03-11 12:50:00.402418873 +0100
@@ -171,6 +171,7 @@ static GTY(()) section *debug_line_str_s
static GTY(()) section *debug_str_dwo_section;
static GTY(()) section *debug_str_offsets_section;
static GTY(()) section *debug_ranges_section;
+static GTY(()) section *debug_ranges_dwo_section;
static GTY(()) section *debug_frame_section;
/* Maximum size (in bytes) of an artificially generated label. */
@@ -3152,11 +3153,17 @@ struct GTY(()) dw_ranges {
/* If this is positive, it's a block number, otherwise it's a
bitwise-negated index into dw_ranges_by_label. */
int num;
+ /* If idx is equal to DW_RANGES_IDX_SKELETON, it should be emitted
+ into .debug_rnglists section rather than .debug_rnglists.dwo
+ for -gsplit-dwarf and DWARF >= 5. */
+#define DW_RANGES_IDX_SKELETON ((1U << 31) - 1)
/* Index for the range list for DW_FORM_rnglistx. */
unsigned int idx : 31;
/* True if this range might be possibly in a different section
from previous entry. */
unsigned int maybe_new_sec : 1;
+ addr_table_entry *begin_entry;
+ addr_table_entry *end_entry;
};
/* A structure to hold a macinfo entry. */
@@ -4099,6 +4106,9 @@ new_addr_loc_descr (rtx addr, enum dtpre
#ifndef DEBUG_RNGLISTS_SECTION
#define DEBUG_RNGLISTS_SECTION ".debug_rnglists"
#endif
+#ifndef DEBUG_DWO_RNGLISTS_SECTION
+#define DEBUG_DWO_RNGLISTS_SECTION ".debug_rnglists.dwo"
+#endif
#ifndef DEBUG_LINE_STR_SECTION
#define DEBUG_LINE_STR_SECTION ".debug_line_str"
#endif
@@ -11751,7 +11761,7 @@ output_aranges (void)
static unsigned int
add_ranges_num (int num, bool maybe_new_sec)
{
- dw_ranges r = { NULL, num, 0, maybe_new_sec };
+ dw_ranges r = { NULL, num, 0, maybe_new_sec, NULL, NULL };
vec_safe_push (ranges_table, r);
return vec_safe_length (ranges_table) - 1;
}
@@ -11796,6 +11806,8 @@ add_ranges_by_labels (dw_die_ref die, co
add_AT_range_list (die, DW_AT_ranges, offset, force_direct);
*added = true;
note_rnglist_head (offset);
+ if (dwarf_split_debug_info && force_direct)
+ (*ranges_table)[offset].idx = DW_RANGES_IDX_SKELETON;
}
}
@@ -11921,23 +11933,87 @@ asm_outputs_debug_line_str (void)
}
-/* Assign .debug_rnglists indexes. */
+/* Assign .debug_rnglists indexes and unique indexes into the debug_addr
+ section when needed. */
static void
index_rnglists (void)
{
unsigned i;
dw_ranges *r;
+ bool base = false;
+ unsigned int len = vec_safe_length (ranges_table);
FOR_EACH_VEC_SAFE_ELT (ranges_table, i, r)
- if (r->label)
- r->idx = rnglist_idx++;
+ {
+ if (r->label && r->idx != DW_RANGES_IDX_SKELETON)
+ r->idx = rnglist_idx++;
+
+ if (!have_multiple_function_sections)
+ continue;
+ int block_num = r->num;
+ if (HAVE_AS_LEB128 && (r->label || r->maybe_new_sec))
+ base = false;
+ if (block_num > 0)
+ {
+ char blabel[MAX_ARTIFICIAL_LABEL_BYTES];
+ char elabel[MAX_ARTIFICIAL_LABEL_BYTES];
+
+ ASM_GENERATE_INTERNAL_LABEL (blabel, BLOCK_BEGIN_LABEL, block_num);
+ ASM_GENERATE_INTERNAL_LABEL (elabel, BLOCK_END_LABEL, block_num);
+
+ if (HAVE_AS_LEB128)
+ {
+ if (!base)
+ {
+ dw_ranges *r2 = NULL;
+ if (i < len - 1)
+ r2 = &(*ranges_table)[i + 1];
+ if (r2
+ && r2->num != 0
+ && r2->label == NULL
+ && !r2->maybe_new_sec)
+ {
+ r->begin_entry
+ = add_addr_table_entry (xstrdup (blabel),
+ ate_kind_label);
+ base = true;
+ }
+ }
+ if (base)
+ continue;
+ r->begin_entry
+ = add_addr_table_entry (xstrdup (blabel), ate_kind_label);
+ }
+ else
+ {
+ r->begin_entry
+ = add_addr_table_entry (xstrdup (blabel), ate_kind_label);
+ r->end_entry
+ = add_addr_table_entry (xstrdup (elabel), ate_kind_label);
+ }
+ }
+
+ /* Negative block_num stands for an index into ranges_by_label. */
+ else if (block_num < 0)
+ {
+ int lab_idx = - block_num - 1;
+ const char *blabel = (*ranges_by_label)[lab_idx].begin;
+ const char *elabel = (*ranges_by_label)[lab_idx].end;
+
+ r->begin_entry
+ = add_addr_table_entry (xstrdup (blabel), ate_kind_label);
+ if (!HAVE_AS_LEB128)
+ r->end_entry
+ = add_addr_table_entry (xstrdup (elabel), ate_kind_label);
+ }
+ }
}
-/* Emit .debug_rnglists section. */
+/* Emit .debug_rnglists or (when DWO is true) .debug_rnglists.dwo section. */
-static void
-output_rnglists (unsigned generation)
+static bool
+output_rnglists (unsigned generation, bool dwo)
{
unsigned i;
dw_ranges *r;
@@ -11945,14 +12021,19 @@ output_rnglists (unsigned generation)
char l2[MAX_ARTIFICIAL_LABEL_BYTES];
char basebuf[MAX_ARTIFICIAL_LABEL_BYTES];
- switch_to_section (debug_ranges_section);
- ASM_OUTPUT_LABEL (asm_out_file, ranges_section_label);
+ if (dwo)
+ switch_to_section (debug_ranges_dwo_section);
+ else
+ {
+ switch_to_section (debug_ranges_section);
+ ASM_OUTPUT_LABEL (asm_out_file, ranges_section_label);
+ }
/* There are up to 4 unique ranges labels per generation.
See also init_sections_and_labels. */
ASM_GENERATE_INTERNAL_LABEL (l1, DEBUG_RANGES_SECTION_LABEL,
- 2 + generation * 4);
+ 2 + 2 * dwo + generation * 6);
ASM_GENERATE_INTERNAL_LABEL (l2, DEBUG_RANGES_SECTION_LABEL,
- 3 + generation * 4);
+ 3 + 2 * dwo + generation * 6);
if (DWARF_INITIAL_LENGTH_SIZE - dwarf_offset_size == 4)
dw2_asm_output_data (4, 0xffffffff,
"Initial length escape value indicating "
@@ -11969,13 +12050,13 @@ output_rnglists (unsigned generation)
the offset table plus corresponding DW_FORM_rnglistx uleb128 indexes
into it are usually larger than just DW_FORM_sec_offset offsets
into the .debug_rnglists section. */
- dw2_asm_output_data (4, dwarf_split_debug_info ? rnglist_idx : 0,
+ dw2_asm_output_data (4, dwo ? rnglist_idx : 0,
"Offset Entry Count");
- if (dwarf_split_debug_info)
+ if (dwo)
{
ASM_OUTPUT_LABEL (asm_out_file, ranges_base_label);
FOR_EACH_VEC_SAFE_ELT (ranges_table, i, r)
- if (r->label)
+ if (r->label && r->idx != DW_RANGES_IDX_SKELETON)
dw2_asm_output_delta (dwarf_offset_size, r->label,
ranges_base_label, NULL);
}
@@ -11983,15 +12064,32 @@ output_rnglists (unsigned generation)
const char *lab = "";
unsigned int len = vec_safe_length (ranges_table);
const char *base = NULL;
+ bool skipping = false;
+ bool ret = false;
FOR_EACH_VEC_SAFE_ELT (ranges_table, i, r)
{
int block_num = r->num;
if (r->label)
{
+ if (dwarf_split_debug_info)
+ {
+ if ((r->idx == DW_RANGES_IDX_SKELETON) == dwo)
+ {
+ ret = true;
+ skipping = true;
+ continue;
+ }
+ }
ASM_OUTPUT_LABEL (asm_out_file, r->label);
lab = r->label;
}
+ if (skipping)
+ {
+ if (block_num == 0)
+ skipping = false;
+ continue;
+ }
if (HAVE_AS_LEB128 && (r->label || r->maybe_new_sec))
base = NULL;
if (block_num > 0)
@@ -12027,10 +12125,23 @@ output_rnglists (unsigned generation)
&& r2->label == NULL
&& !r2->maybe_new_sec)
{
- dw2_asm_output_data (1, DW_RLE_base_address,
- "DW_RLE_base_address (%s)", lab);
- dw2_asm_output_addr (DWARF2_ADDR_SIZE, blabel,
- "Base address (%s)", lab);
+ if (dwarf_split_debug_info)
+ {
+ dw2_asm_output_data (1, DW_RLE_base_addressx,
+ "DW_RLE_base_addressx (%s)",
+ lab);
+ dw2_asm_output_data_uleb128 (r->begin_entry->index,
+ "Base address index "
+ "(%s)", blabel);
+ }
+ else
+ {
+ dw2_asm_output_data (1, DW_RLE_base_address,
+ "DW_RLE_base_address (%s)",
+ lab);
+ dw2_asm_output_addr (DWARF2_ADDR_SIZE, blabel,
+ "Base address (%s)", lab);
+ }
strcpy (basebuf, blabel);
base = basebuf;
}
@@ -12045,13 +12156,35 @@ output_rnglists (unsigned generation)
"Range end address (%s)", lab);
continue;
}
- dw2_asm_output_data (1, DW_RLE_start_length,
- "DW_RLE_start_length (%s)", lab);
- dw2_asm_output_addr (DWARF2_ADDR_SIZE, blabel,
- "Range begin address (%s)", lab);
+ if (dwarf_split_debug_info)
+ {
+ dw2_asm_output_data (1, DW_RLE_startx_length,
+ "DW_RLE_startx_length (%s)", lab);
+ dw2_asm_output_data_uleb128 (r->begin_entry->index,
+ "Range begin address index "
+ "(%s)", blabel);
+ }
+ else
+ {
+ dw2_asm_output_data (1, DW_RLE_start_length,
+ "DW_RLE_start_length (%s)", lab);
+ dw2_asm_output_addr (DWARF2_ADDR_SIZE, blabel,
+ "Range begin address (%s)", lab);
+ }
dw2_asm_output_delta_uleb128 (elabel, blabel,
"Range length (%s)", lab);
}
+ else if (dwarf_split_debug_info)
+ {
+ dw2_asm_output_data (1, DW_RLE_startx_endx,
+ "DW_RLE_startx_endx (%s)", lab);
+ dw2_asm_output_data_uleb128 (r->begin_entry->index,
+ "Range begin address index "
+ "(%s)", blabel);
+ dw2_asm_output_data_uleb128 (r->end_entry->index,
+ "Range end address index "
+ "(%s)", elabel);
+ }
else
{
dw2_asm_output_data (1, DW_RLE_start_end,
@@ -12074,13 +12207,35 @@ output_rnglists (unsigned generation)
gcc_unreachable ();
if (HAVE_AS_LEB128)
{
- dw2_asm_output_data (1, DW_RLE_start_length,
- "DW_RLE_start_length (%s)", lab);
- dw2_asm_output_addr (DWARF2_ADDR_SIZE, blabel,
- "Range begin address (%s)", lab);
+ if (dwarf_split_debug_info)
+ {
+ dw2_asm_output_data (1, DW_RLE_startx_length,
+ "DW_RLE_startx_length (%s)", lab);
+ dw2_asm_output_data_uleb128 (r->begin_entry->index,
+ "Range begin address index "
+ "(%s)", blabel);
+ }
+ else
+ {
+ dw2_asm_output_data (1, DW_RLE_start_length,
+ "DW_RLE_start_length (%s)", lab);
+ dw2_asm_output_addr (DWARF2_ADDR_SIZE, blabel,
+ "Range begin address (%s)", lab);
+ }
dw2_asm_output_delta_uleb128 (elabel, blabel,
"Range length (%s)", lab);
}
+ else if (dwarf_split_debug_info)
+ {
+ dw2_asm_output_data (1, DW_RLE_startx_endx,
+ "DW_RLE_startx_endx (%s)", lab);
+ dw2_asm_output_data_uleb128 (r->begin_entry->index,
+ "Range begin address index "
+ "(%s)", blabel);
+ dw2_asm_output_data_uleb128 (r->end_entry->index,
+ "Range end address index "
+ "(%s)", elabel);
+ }
else
{
dw2_asm_output_data (1, DW_RLE_start_end,
@@ -12096,6 +12251,7 @@ output_rnglists (unsigned generation)
"DW_RLE_end_of_list (%s)", lab);
}
ASM_OUTPUT_LABEL (asm_out_file, l2);
+ return ret;
}
/* Data structure containing information about input files. */
@@ -28823,6 +28979,10 @@ init_sections_and_labels (bool early_lto
debug_macinfo_section = get_section (debug_macinfo_section_name,
SECTION_DEBUG | SECTION_EXCLUDE,
NULL);
+ if (dwarf_version >= 5)
+ debug_ranges_dwo_section
+ = get_section (DEBUG_DWO_RNGLISTS_SECTION,
+ SECTION_DEBUG | SECTION_EXCLUDE, NULL);
}
debug_aranges_section = get_section (DEBUG_ARANGES_SECTION,
SECTION_DEBUG, NULL);
@@ -28857,15 +29017,15 @@ init_sections_and_labels (bool early_lto
ASM_GENERATE_INTERNAL_LABEL (debug_line_section_label,
DEBUG_LINE_SECTION_LABEL,
init_sections_and_labels_generation);
- /* There are up to 4 unique ranges labels per generation.
+ /* There are up to 6 unique ranges labels per generation.
See also output_rnglists. */
ASM_GENERATE_INTERNAL_LABEL (ranges_section_label,
DEBUG_RANGES_SECTION_LABEL,
- init_sections_and_labels_generation * 4);
+ init_sections_and_labels_generation * 6);
if (dwarf_version >= 5 && dwarf_split_debug_info)
ASM_GENERATE_INTERNAL_LABEL (ranges_base_label,
DEBUG_RANGES_SECTION_LABEL,
- 1 + init_sections_and_labels_generation * 4);
+ 1 + init_sections_and_labels_generation * 6);
ASM_GENERATE_INTERNAL_LABEL (debug_addr_section_label,
DEBUG_ADDR_SECTION_LABEL,
init_sections_and_labels_generation);
@@ -31665,6 +31825,9 @@ dwarf2out_finish (const char *filename)
index_location_lists (comp_unit_die ());
}
+ if (dwarf_version >= 5 && !vec_safe_is_empty (ranges_table))
+ index_rnglists ();
+
if (addr_index_table != NULL)
{
unsigned int index = 0;
@@ -31730,9 +31893,6 @@ dwarf2out_finish (const char *filename)
int mark;
struct md5_ctx ctx;
- if (dwarf_version >= 5 && !vec_safe_is_empty (ranges_table))
- index_rnglists ();
-
/* Compute a checksum of the comp_unit to use as the dwo_id. */
md5_init_ctx (&ctx);
mark = 0;
@@ -31752,10 +31912,7 @@ dwarf2out_finish (const char *filename)
comp-unit DIE. */
if (!vec_safe_is_empty (ranges_table))
{
- if (dwarf_version >= 5)
- add_AT_lineptr (main_comp_unit_die, DW_AT_rnglists_base,
- ranges_base_label);
- else
+ if (dwarf_version < 5)
add_AT_lineptr (main_comp_unit_die, DW_AT_GNU_ranges_base,
ranges_section_label);
}
@@ -31833,7 +31990,26 @@ dwarf2out_finish (const char *filename)
if (!vec_safe_is_empty (ranges_table))
{
if (dwarf_version >= 5)
- output_rnglists (generation);
+ {
+ if (dwarf_split_debug_info)
+ {
+ /* We don't know right now whether there are any
+ ranges for .debug_rnglists and any for .debug_rnglists.dwo.
+ Depending on into which of those two belongs the first
+ ranges_table entry, emit that section first and that
+ output_rnglists call will return if the other kind of
+ ranges needs to be emitted as well. */
+ if ((*ranges_table)[0].idx == DW_RANGES_IDX_SKELETON)
+ {
+ if (output_rnglists (generation, false))
+ output_rnglists (generation, true);
+ }
+ else if (output_rnglists (generation, true))
+ output_rnglists (generation, false);
+ }
+ else
+ output_rnglists (generation, false);
+ }
else
output_ranges ();
}
@@ -32457,6 +32633,7 @@ dwarf2out_c_finalize (void)
debug_str_dwo_section = NULL;
debug_str_offsets_section = NULL;
debug_ranges_section = NULL;
+ debug_ranges_dwo_section = NULL;
debug_frame_section = NULL;
fde_vec = NULL;
debug_str_hash = NULL;

39
gcc11-pr99562.patch Normal file
View File

@ -0,0 +1,39 @@
2021-03-13 Jakub Jelinek <jakub@redhat.com>
PR debug/99562
PR debug/66728
* dwarf2out.c (get_full_len): Use get_precision rather than
min_precision.
(add_const_value_attribute): Make sure add_AT_wide argument has
precision prec rather than some very wide one.
--- gcc/dwarf2out.c.jj 2021-03-11 14:01:43.385194205 +0100
+++ gcc/dwarf2out.c 2021-03-12 17:34:49.365207265 +0100
@@ -385,13 +385,12 @@ dump_struct_debug (tree type, enum debug
#endif
/* Get the number of HOST_WIDE_INTs needed to represent the precision
- of the number. Some constants have a large uniform precision, so
- we get the precision needed for the actual value of the number. */
+ of the number. */
static unsigned int
get_full_len (const wide_int &op)
{
- int prec = wi::min_precision (op, UNSIGNED);
+ int prec = wi::get_precision (op);
return ((prec + HOST_BITS_PER_WIDE_INT - 1)
/ HOST_BITS_PER_WIDE_INT);
}
@@ -19732,8 +19731,9 @@ add_const_value_attribute (dw_die_ref di
{
wide_int w1 = rtx_mode_t (rtl, MAX_MODE_INT);
unsigned int prec = MIN (wi::min_precision (w1, UNSIGNED),
- (unsigned int)CONST_WIDE_INT_NUNITS (rtl) * HOST_BITS_PER_WIDE_INT);
- wide_int w = wi::zext (w1, prec);
+ (unsigned int) CONST_WIDE_INT_NUNITS (rtl)
+ * HOST_BITS_PER_WIDE_INT);
+ wide_int w = wide_int::from (w1, prec, UNSIGNED);
add_AT_wide (die, DW_AT_const_value, w);
}
return true;

44
gcc11-pr99650.patch Normal file
View File

@ -0,0 +1,44 @@
2021-03-18 Jakub Jelinek <jakub@redhat.com>
PR c++/99650
* decl.c (cp_finish_decomp): Diagnose void initializers when
using tuple_element and get.
* g++.dg/cpp1z/decomp55.C: New test.
--- gcc/cp/decl.c.jj 2021-03-16 21:17:41.014498713 +0100
+++ gcc/cp/decl.c 2021-03-18 19:31:22.430149523 +0100
@@ -8629,6 +8629,11 @@ cp_finish_decomp (tree decl, tree first,
: get_tuple_element_type (type, i));
input_location = sloc;
+ if (VOID_TYPE_P (eltype))
+ {
+ error ("forming reference to void");
+ eltype = error_mark_node;
+ }
if (init == error_mark_node || eltype == error_mark_node)
{
inform (dloc, "in initialization of structured binding "
--- gcc/testsuite/g++.dg/cpp1z/decomp55.C.jj 2021-03-18 19:43:07.958457494 +0100
+++ gcc/testsuite/g++.dg/cpp1z/decomp55.C 2021-03-18 19:42:35.099815746 +0100
@@ -0,0 +1,19 @@
+// PR c++/99650
+// { dg-do compile { target c++17 } }
+
+namespace std {
+ template<typename T> struct tuple_size;
+ template<int, typename> struct tuple_element;
+}
+
+struct A {
+ int i;
+ template <int I> void get() { }
+};
+
+template<> struct std::tuple_size<A> { static const int value = 2; };
+template<int I> struct std::tuple_element<I,A> { using type = void; };
+
+A a = { 42 };
+auto [ x, y ] = a; // { dg-error "forming reference to void" }
+// { dg-message "in initialization of structured binding variable 'x'" "" { target *-*-* } .-1 }

3
sources
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@ -1,3 +1,4 @@
SHA512 (gcc-11.0.1-20210307.tar.xz) = 1efa50991f55de59270af6ff134fc1818ca23e30bdc064f79916e358e46daf301a8d2d3e1afcde58a00a521e8bc2136f8cc5f21c5e05ccd80fa8e5c7e9324e9b
SHA512 (gcc-11.0.1-20210319.tar.xz) = 5e8469f34601f9fd30439509129a738f61c61357f260cc6addffdea1a6b14eba0cf7030ad6e32dd000f08b0fbba13e90d6618e5d699658000675cdfe22c919f1
SHA512 (isl-0.18.tar.bz2) = 85d0b40f4dbf14cb99d17aa07048cdcab2dc3eb527d2fbb1e84c41b2de5f351025370e57448b63b2b8a8cf8a0843a089c3263f9baee1542d5c2e1cb37ed39d94
SHA512 (newlib-cygwin-50e2a63b04bdd018484605fbb954fd1bd5147fa0.tar.xz) = 002a48a7b689a81abbf16161bcaec001a842e67dfbe372e9e109092703bfc666675f16198f60ca429370e8850d564547dc505df81bc3aaca4ce6defbc014ad6c
SHA512 (nvptx-tools-5f6f343a302d620b0868edab376c00b15741e39e.tar.xz) = f6d10db94fa1570ae0f94df073fa3c73c8e5ee16d59070b53d94f7db0de8a031bc44d7f3f1852533da04b625ce758e022263855ed43cfc6867e0708d001e53c7