From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id D04253858284; Thu, 12 Oct 2023 16:00:17 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org D04253858284 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1697126417; bh=SFhmSWwXO37nry8ChmSYeEd0e+IHwKW84QNRsUxxC/k=; h=From:To:Subject:Date:From; b=r+6DV/ELJHv2J7PBvo0B6b3YgMob+lmbbPLwArIRY1IAOfPrgBC2SZa8dynZseefh 2EbkM7P8sg8XSZQmGG9m40GX8Nq8qKBGtfK2Y26llH5+91xt+F2s6br6ri5RHIS4+U ear0/CWEIoyZel95zNrfo/bY3Z7ngB1aI/qA+dXQ= From: "gprocida at google dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/111788] New: g++ DWARF for void foo(...) missing unspecified parameters DIE Date: Thu, 12 Oct 2023 16:00:17 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c++ X-Bugzilla-Version: 13.2.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: gprocida at google dot com X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version bug_status bug_severity priority component assigned_to reporter target_milestone Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 List-Id: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D111788 Bug ID: 111788 Summary: g++ DWARF for void foo(...) missing unspecified parameters DIE Product: gcc Version: 13.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: gprocida at google dot com Target Milestone: --- I'm putting this in component c++ rather than debug, because the debug information is correct for C compilation. FWIW, clang++-15 does emit DW_TAG_unspecified_parameters. $ cat v.c int foo1(int x, int y, ...) { return x + y; } int foo2(int x, ...) { return x; } int foo3(...) { return 0; } $ gcc -Wall -Wextra -g -c v.c v.o # DWARF for foo3 includes DW_TAG_unspecified_parameters $ g++ -Wall -Wextra -g -c v.c v.o # DWARF for foo3 does NOT include DW_TAG_unspecified_parameters $ g++ -v Using built-in specs. COLLECT_GCC=3Dg++ COLLECT_LTO_WRAPPER=3D/usr/libexec/gcc/x86_64-linux-gnu/13/lto-wrapper OFFLOAD_TARGET_NAMES=3Dnvptx-none:amdgcn-amdhsa OFFLOAD_TARGET_DEFAULT=3D1 Target: x86_64-linux-gnu Configured with: ../src/configure -v --with-pkgversion=3D'Debian 13.2.0-4' --with-bugurl=3Dfile:///usr/share/doc/gcc-13/README.Bugs --enable-languages=3Dc,ada,c++,go,d,fortran,objc,obj-c++,m2 --prefix=3D/usr --with-gcc-major-version-only --program-suffix=3D-13 --program-prefix=3Dx86_64-linux-gnu- --enable-shared --enable-linker-build-= id --libexecdir=3D/usr/libexec --without-included-gettext --enable-threads=3Dp= osix --libdir=3D/usr/lib --enable-nls --enable-bootstrap --enable-clocale=3Dgnu --enable-libstdcxx-debug --enable-libstdcxx-time=3Dyes --with-default-libstdcxx-abi=3Dnew --enable-gnu-unique-object --disable-vtable-verify --enable-plugin --enable-default-pie --with-system-= zlib --enable-libphobos-checking=3Drelease --with-target-system-zlib=3Dauto --enable-objc-gc=3Dauto --enable-multiarch --disable-werror --enable-cet --with-arch-32=3Di686 --with-abi=3Dm64 --with-multilib-list=3Dm32,m64,mx32 --enable-multilib --with-tune=3Dgeneric --enable-offload-targets=3Dnvptx-none=3D/build/gcc-13-oyarai/gcc-13-13.2.0/= debian/tmp-nvptx/usr,amdgcn-amdhsa=3D/build/gcc-13-oyarai/gcc-13-13.2.0/deb= ian/tmp-gcn/usr --enable-offload-defaulted --without-cuda-driver --enable-checking=3Drelease --build=3Dx86_64-linux-gnu --host=3Dx86_64-linux-gnu --target=3Dx86_64-linu= x-gnu --with-build-config=3Dbootstrap-lto-lean --enable-link-serialization=3D28 Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 13.2.0 (Debian 13.2.0-4)=