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From: "hubicka at kam dot mff.cuni.cz" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug ipa/103636] [12 Regression] Clang build fails with -flto -fno-strict-aliaisng -flifetime-dse=1 -fprofile-generate
Date: Fri, 10 Dec 2021 10:36:14 +0000	[thread overview]
Message-ID: <bug-103636-4-WBOU5gXRYR@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-103636-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103636

--- Comment #7 from hubicka at kam dot mff.cuni.cz ---
I use
cmake -G "Unix Makefiles" /home/jh/llvm-project/llvm
-DCLANG_TABLEGEN=/home/jh/llvm-project/llvm/out/stage1/bin/clang-tblgen
-DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_COMPILER=/home/jh/trunk-install/bin/g++
-DCMAKE_C_COMPILER=/home/jh/trunk-install/bin/gcc -DLL
VM_BINUTILS_INCDIR=/home/jh/binutils-install/include/ -DLLVM_BUILD_RUNTIME=No
-DLLVM_ENABLE_PROJECTS="clang;compiler-rt;lld" -DLL
VM_TABLEGEN=/home/jh/llvm-project/llvm/out/stage1/bin/llvm-tblgen
-DLLVM_TARGETS_TO_BUILD=X86 -DCMAKE_C_FLAGS_RELEASE="-O2 -fno-s trict-aliasing 
-flifetime-dse=1 -flto=auto -fno-semantic-interposition -fprofile-generate
-DNDEBUG" -DCMAKE_CXX_FLAGS_RELEASE="- O2  -flto=auto  -fno-strict-aliasing
-flifetime-dse=1 -fno-semantic-interposition -fprofile-generate -DNDEBUG"

I already checked that with that hunk in can_inline_edge_p commented out
the clang build and training run works.
Sadly clang segfaults with either strict aliasing or lifetime-dse
enabled.

  parent reply	other threads:[~2021-12-10 10:36 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-09 19:24 [Bug ipa/103636] New: " hubicka at gcc dot gnu.org
2021-12-09 19:27 ` [Bug ipa/103636] " hubicka at gcc dot gnu.org
2021-12-09 19:34 ` marxin at gcc dot gnu.org
2021-12-09 19:37 ` marxin at gcc dot gnu.org
2021-12-09 19:49 ` hubicka at gcc dot gnu.org
2021-12-10  0:31 ` [Bug ipa/103636] [12 Regression] " pinskia at gcc dot gnu.org
2021-12-10 10:24 ` marxin at gcc dot gnu.org
2021-12-10 10:28 ` marxin at gcc dot gnu.org
2021-12-10 10:36 ` hubicka at kam dot mff.cuni.cz [this message]
2021-12-13 13:58 ` cvs-commit at gcc dot gnu.org
2021-12-13 13:59 ` marxin at gcc dot gnu.org

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