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From: "luangruo at yahoo dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c/65673] [10/11/12/13 Regression] Compound literal with initializer for zero-sized array drops other initializers Date: Tue, 31 Jan 2023 01:29:20 +0000 [thread overview] Message-ID: <bug-65673-4-FtHoYyHPNa@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-65673-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65673 Po Lu <luangruo at yahoo dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |luangruo at yahoo dot com --- Comment #9 from Po Lu <luangruo at yahoo dot com> --- This bug still exists, both in GCC 12.2 and trunk: struct sfnt_generic_test_args { unsigned int *expected_stack; int expected_stack_elements; int expected_trap : 1; int expected_IP; }; struct sfnt_generic_test_args stack_underflow_test_args = { (unsigned int [0]) { }, 0, 1, 4, }; on: Using built-in specs. COLLECT_GCC=/usr/bin/gcc COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-redhat-linux/12/lto-wrapper OFFLOAD_TARGET_NAMES=nvptx-none OFFLOAD_TARGET_DEFAULT=1 Target: x86_64-redhat-linux Configured with: ../configure --enable-bootstrap --enable-languages=c,c++,fortran,objc,obj-c++,ada,go,d,lto --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-shared --enable-threads=posix --enable-checking=release --enable-multilib --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-linker-build-id --with-gcc-major-version-only --enable-libstdcxx-backtrace --with-linker-hash-style=gnu --enable-plugin --enable-initfini-array --with-isl=/builddir/build/BUILD/gcc-12.2.1-20220819/obj-x86_64-redhat-linux/isl-install --enable-offload-targets=nvptx-none --without-cuda-driver --enable-offload-defaulted --enable-gnu-indirect-function --enable-cet --with-tune=generic --with-arch_32=i686 --build=x86_64-redhat-linux --with-build-config=bootstrap-lto --enable-link-serialization=1 Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 12.2.1 20220819 (Red Hat 12.2.1-2) (GCC) and Using built-in specs. COLLECT_GCC=/opt/compiler-explorer/gcc-snapshot/bin/gcc Target: x86_64-linux-gnu Configured with: ../gcc-trunk-20230129/configure --prefix=/opt/compiler-explorer/gcc-build/staging --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu --disable-bootstrap --enable-multiarch --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --enable-clocale=gnu --enable-languages=c,c++,fortran,ada,objc,obj-c++,go,d,rust --enable-ld=yes --enable-gold=yes --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-linker-build-id --enable-lto --enable-plugins --enable-threads=posix --with-pkgversion=Compiler-Explorer-Build-gcc-ee2c965ee205ae12bc78d8641337380df3b1d3f3-binutils-2.38 Thread model: posix Supported LTO compression algorithms: zlib gcc version 13.0.1 20230129 (experimental) (Compiler-Explorer-Build-gcc-ee2c965ee205ae12bc78d8641337380df3b1d3f3-binutils-2.38) COLLECT_GCC_OPTIONS='-fdiagnostics-color=always' '-g' '-o' '/app/output.s' '-S' '-v' '-mtune=generic' '-march=x86-64' '-dumpdir' '/app/' /opt/compiler-explorer/gcc-trunk-20230129/bin/../libexec/gcc/x86_64-linux-gnu/13.0.1/cc1 -quiet -v -imultiarch x86_64-linux-gnu -iprefix /opt/compiler-explorer/gcc-trunk-20230129/bin/../lib/gcc/x86_64-linux-gnu/13.0.1/ <source> -quiet -dumpdir /app/ -dumpbase output.c -dumpbase-ext .c -mtune=generic -march=x86-64 -g -version -fdiagnostics-color=always -o /app/output.s GNU C17 (Compiler-Explorer-Build-gcc-ee2c965ee205ae12bc78d8641337380df3b1d3f3-binutils-2.38) version 13.0.1 20230129 (experimental) (x86_64-linux-gnu) compiled by GNU C version 9.4.0, GMP version 6.2.1, MPFR version 4.1.0, MPC version 1.2.1, isl version isl-0.24-GMP GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 ignoring nonexistent directory "/opt/compiler-explorer/gcc-trunk-20230129/bin/../lib/gcc/x86_64-linux-gnu/13.0.1/../../../../x86_64-linux-gnu/include" ignoring duplicate directory "/opt/compiler-explorer/gcc-trunk-20230129/bin/../lib/gcc/../../lib/gcc/x86_64-linux-gnu/13.0.1/include" ignoring nonexistent directory "/usr/local/include/x86_64-linux-gnu" ignoring duplicate directory "/opt/compiler-explorer/gcc-trunk-20230129/bin/../lib/gcc/../../lib/gcc/x86_64-linux-gnu/13.0.1/include-fixed/x86_64-linux-gnu" ignoring duplicate directory "/opt/compiler-explorer/gcc-trunk-20230129/bin/../lib/gcc/../../lib/gcc/x86_64-linux-gnu/13.0.1/include-fixed" ignoring nonexistent directory "/opt/compiler-explorer/gcc-trunk-20230129/bin/../lib/gcc/../../lib/gcc/x86_64-linux-gnu/13.0.1/../../../../x86_64-linux-gnu/include" #include "..." search starts here: #include <...> search starts here: /opt/compiler-explorer/gcc-trunk-20230129/bin/../lib/gcc/x86_64-linux-gnu/13.0.1/include /opt/compiler-explorer/gcc-trunk-20230129/bin/../lib/gcc/x86_64-linux-gnu/13.0.1/include-fixed/x86_64-linux-gnu /opt/compiler-explorer/gcc-trunk-20230129/bin/../lib/gcc/x86_64-linux-gnu/13.0.1/include-fixed /usr/local/include /opt/compiler-explorer/gcc-trunk-20230129/bin/../lib/gcc/../../include /usr/include/x86_64-linux-gnu /usr/include End of search list. GNU C17 (Compiler-Explorer-Build-gcc-ee2c965ee205ae12bc78d8641337380df3b1d3f3-binutils-2.38) version 13.0.1 20230129 (experimental) (x86_64-linux-gnu) compiled by GNU C version 9.4.0, GMP version 6.2.1, MPFR version 4.1.0, MPC version 1.2.1, isl version isl-0.24-GMP GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 Compiler executable checksum: ad17c4694b07a4272f6162e91fa92744 COMPILER_PATH=/opt/compiler-explorer/gcc-trunk-20230129/bin/../libexec/gcc/x86_64-linux-gnu/13.0.1/:/opt/compiler-explorer/gcc-trunk-20230129/bin/../libexec/gcc/x86_64-linux-gnu/:/opt/compiler-explorer/gcc-trunk-20230129/bin/../libexec/gcc/:/opt/compiler-explorer/gcc-trunk-20230129/bin/../lib/gcc/x86_64-linux-gnu/13.0.1/../../../../x86_64-linux-gnu/bin/ LIBRARY_PATH=/opt/compiler-explorer/gcc-trunk-20230129/bin/../lib/gcc/x86_64-linux-gnu/13.0.1/:/opt/compiler-explorer/gcc-trunk-20230129/bin/../lib/gcc/x86_64-linux-gnu/:/opt/compiler-explorer/gcc-trunk-20230129/bin/../lib/gcc/:/opt/compiler-explorer/gcc-trunk-20230129/bin/../lib/gcc/x86_64-linux-gnu/13.0.1/../../../../lib64/:/lib/x86_64-linux-gnu/:/lib/../lib64/:/usr/lib/x86_64-linux-gnu/:/usr/lib/../lib64/:/opt/compiler-explorer/gcc-trunk-20230129/bin/../lib/gcc/x86_64-linux-gnu/13.0.1/../../../../x86_64-linux-gnu/lib/:/opt/compiler-explorer/gcc-trunk-20230129/bin/../lib/gcc/x86_64-linux-gnu/13.0.1/../../../:/lib/:/usr/lib/ COLLECT_GCC_OPTIONS='-fdiagnostics-color=always' '-g' '-o' '/app/output.s' '-S' '-v' '-mtune=generic' '-march=x86-64' '-dumpdir' '/app/output.' Compiler returned: 0 results in the structure being generated as a .zero section of size 24, while it should really be: .quad <address of compound literal array of size 0> .long 0 .byte 1 .zero 3 .long 4 .zero 4 I hope it can be fixed, because this is causing real problems for Emacs. Thanks in advance.
next prev parent reply other threads:[~2023-01-31 1:29 UTC|newest] Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top 2015-04-05 6:42 [Bug c/65673] New: " stilor at att dot net 2015-04-17 7:09 ` [Bug c/65673] " mpolacek at gcc dot gnu.org 2015-04-17 13:03 ` mpolacek at gcc dot gnu.org 2022-01-03 20:34 ` [Bug c/65673] [9/10/11/12 Regression] " pinskia at gcc dot gnu.org 2022-01-17 15:19 ` rguenth at gcc dot gnu.org 2022-05-27 9:35 ` [Bug c/65673] [10/11/12/13 " rguenth at gcc dot gnu.org 2022-06-28 10:31 ` jakub at gcc dot gnu.org 2022-12-20 13:00 ` rguenth at gcc dot gnu.org 2023-01-31 1:29 ` luangruo at yahoo dot com [this message] 2023-07-07 10:30 ` [Bug c/65673] [11/12/13/14 " rguenth at gcc dot gnu.org
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