From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 028843858D1E; Wed, 21 Dec 2022 10:57:46 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 028843858D1E DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1671620266; bh=ltQcJhzHe59eZBzCGRE4Tg5mmBdKo+qd6c8apHj4PvM=; h=From:To:Subject:Date:In-Reply-To:References:From; b=GLIpR8NbiQ7mzPN7y2Xq5ggQpVYkLp8jRoLiNI30Xq5DiZtnc+DZaEk9Ig3ucdBTK /MsZBTJ5SOaEHniPq5ehJ0uZ6KHsKzbzHBZ6tEk3RU7Fd4Ss3o+G9jEDLDa4juYVvG e6SYcZuHtquL3+Qb2M/c8gR/LMJABtsrqcb7bavs= From: "marxin at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug ipa/108130] [13 Regression] LTO compile time hog seen on bootstrap-lto config since r13-4684-g7450b25566b7a7 Date: Wed, 21 Dec 2022 10:57:45 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: ipa X-Bugzilla-Version: 13.0 X-Bugzilla-Keywords: compile-time-hog X-Bugzilla-Severity: normal X-Bugzilla-Who: marxin at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 13.0 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: 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=3D108130 --- Comment #3 from Martin Li=C5=A1ka --- I noticed one more issue starting with this revision and it's linker error = when building systemd-mini package: https://build.opensuse.org/package/live_build_log/home:marxin:home:marxin:g= cc-periodic-testing-v2/systemd-mini/openSUSE_Tumbleweed/x86_64 [ 114s] /usr/bin/cc -o src/boot/efi/linuxx64.elf.stub -DGNU_EFI_USE_MS_ABI -DSD_BOOT -ffreestanding -fshort-wchar -fvisibility=3Dhidden -I /home/abuild/rpmbuild/BUILD/systemd-v252.3+suse.40.gbf3fef9988/src/fundamen= tal -I /home/abuild/rpmbuild/BUILD/systemd-v252.3+suse.40.gbf3fef9988/src/boot/= efi -include src/boot/efi/efi_config.h -include version.h -isystem /usr/include/efi/x86_64 -isystem /usr/include/efi -std=3Dgnu11 -Wall -Wextra -Wno-missing-field-initializers -Wno-unused-parameter -Wdate-time -Wendif-labels -Werror=3Dformat=3D2 -Werror=3Dformat-signedness -Werror=3Dimplicit-function-declaration -Werror=3Dincompatible-pointer-types -Werror=3Dint-conversion -Werror=3Doverflow -Werror=3Doverride-init -Werror=3Dreturn-type -Werror=3Dshift-count-overflow -Werror=3Dshift-overfl= ow=3D2 -Werror=3Dundef -Wfloat-equal -Wimplicit-fallthrough=3D5 -Winit-self -Wlogi= cal-op -Wmissing-include-dirs -Wmissing-noreturn -Wnested-externs -Wold-style-definition -Wpointer-arith -Wredundant-decls -Wshadow -Wstrict-aliasing=3D2 -Wstrict-prototypes -Wsuggest-attribute=3Dnoreturn -Wunused-function -Wwrite-strings -Wno-maybe-uninitialized -Wno-unused-resu= lt -ftrivial-auto-var-init=3Dzero -fno-stack-protector -fno-strict-aliasing -f= pic -fwide-exec-charset=3DUCS2 -O1 -mno-red-zone -mno-sse -mno-mmx -O2 -flto=3D= auto -fuse-ld=3Dbfd -L /usr/lib64 -nostdlib -T /usr/lib64/elf_x86_64_efi.lds -Wl,--build-id=3Dsha1 -Wl,--fatal-warnings -Wl,--no-undefined -Wl,--warn-co= mmon -Wl,-Bsymbolic -z nocombreloc /usr/lib64/crt0-efi-x86_64.o -Wl,--no-warn-execstack -Wl,--no-warn-rwx-segments -pie -Wl,--no-dynamic-li= nker src/boot/efi/bootspec-fundamental.c.o src/boot/efi/efivars-fundamental.c.o src/boot/efi/sha256.c.o src/boot/efi/string-util-fundamental.c.o src/boot/efi/tpm-pcr.c.o src/boot/efi/assert.c.o src/boot/efi/console.c.o src/boot/efi/devicetree.c.o src/boot/efi/disk.c.o src/boot/efi/efi-string.c= .o src/boot/efi/graphics.c.o src/boot/efi/initrd.c.o src/boot/efi/measure.c.o src/boot/efi/pe.c.o src/boot/efi/secure-boot.c.o src/boot/efi/ticks.c.o src/boot/efi/util.c.o src/boot/efi/cpio.c.o src/boot/efi/linux.c.o src/boot/efi/splash.c.o src/boot/efi/stub.c.o src/boot/efi/linux_x86.c.o -l= efi -lgnuefi -lgcc [ 114s] /usr/bin/ld.bfd: /tmp/ccfbAVRm.ltrans0.ltrans.o: in function `locate_sections.constprop.0': [ 114s] :(.text+0x360c): undefined reference to `memcmp' [ 114s] collect2: error: ld returned 1 exit status note it's a freestanding environment and the symbol memcmp is defined by systemd. Note -flto-partition=3Done does not help us here. memcmp.part.0/2514 (memcmp.part.0) Type: function definition analyzed Visibility: semantic_interposition artificial References:=20 Referring:=20 Read from file: /tmp/ccnpwegs.ltrans0.o Function memcmp.part.0/2514 is inline copy in efi_main/1352 Clone of memcmp.part.0/2216 Unit id: 10 Function flags: count:29068074 (estimated locally) local split_part nonfreeing_fn Called by: memcmp.lto_priv.0/2513 (inlined) (29068074 (estimated locally),0.10 per call)=20 Calls:=20 memcmp.lto_priv.0/2513 (memcmp) Type: function definition analyzed Visibility: semantic_interposition public visibility:hidden References:=20 Referring:=20 Read from file: /tmp/ccnpwegs.ltrans0.o Function memcmp/2513 is inline copy in efi_main/1352 Clone of memcmp.lto_priv.0/503 Unit id: 10 Function flags: count:44042536 (estimated locally) local nonfreeing_fn Called by: is_direct_boot/1927 (inlined) (44042536 (estimated locally),0.= 15 per call)=20 Calls: memcmp.part.0/2514 (inlined) (29068074 (estimated locally),0.10 per call) Unfortunately, I can't easily reduce a self-contained test-case. Please let= me know on IRC and can debug it.=