Date: Tue, 31 Dec 2024 00:44:54 +0000 From: bugzilla-noreply@freebsd.org To: toolchain@FreeBSD.org Subject: [Bug 276170] LLVM bug prevents from enabling PGO optimization for Python 3.11+ Message-ID: <bug-276170-29464-UR4H7eBVzX@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-276170-29464@https.bugs.freebsd.org/bugzilla/> References: <bug-276170-29464@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D276170 --- Comment #31 from Mark Millard <marklmi26-fbsd@yahoo.com> --- (In reply to Guillaume Outters from comment #30) I tried the following with the final WANRINGs at the end shown below: # tar -xpf Python-3.13.1.tar.xz -C ./ # cd Python-3.13.1 # ./configure --enable-optimizations . . . configure: WARNING: pkg-config is missing. Some dependencies may not be detected correctly. configure: WARNING: Platform "aarch64-unknown-freebsd15.0" with compiler "clang" is not support= ed by the CPython core team, see https://peps.python.org/pep-0011/ for more informati= on. I then did the same in another directory tree, using export CC=3Dclang before the "./configure --enable-optimizations". I also captured and diff'd the outputs of the 2 runs, other than "cc" vs. "clang" text, they matched. # diff -rq Python-3.13.1-noCC/ Python-3.13.1-CC_clang/ | more Files Python-3.13.1-noCC/Makefile and Python-3.13.1-CC_clang/Makefile differ Files Python-3.13.1-noCC/Makefile.pre and Python-3.13.1-CC_clang/Makefile.p= re differ Files Python-3.13.1-noCC/config.log and Python-3.13.1-CC_clang/config.log differ Files Python-3.13.1-noCC/config.status and Python-3.13.1-CC_clang/config.st= atus differ There are interesting Makefile differences and Makefile.pre differences, both, in part, tied to PGO_* and LLVM_PROF_* definition differences: # diff -r Python-3.13.1-noCC/ Python-3.13.1-CC_clang/ | less diff -r Python-3.13.1-noCC/Makefile Python-3.13.1-CC_clang/Makefile 38,39c38,39 < CC=3D cc -pthread < CXX=3D c++ -pthread --- > CC=3D clang -pthread > CXX=3D clang++ -pthread 51,54c51,54 < PGO_PROF_GEN_FLAG=3D < PGO_PROF_USE_FLAG=3D < LLVM_PROF_MERGER=3D < LLVM_PROF_FILE=3D --- > PGO_PROF_GEN_FLAG=3D-fprofile-instr-generate > PGO_PROF_USE_FLAG=3D-fprofile-instr-use=3D"$(shell pwd)/code.profclangd" > LLVM_PROF_MERGER=3D /usr/bin/llvm-profdata merge -output=3D"$(shell pwd)/= code.profclangd" "$(shell pwd)"/*.profclangr=20 > LLVM_PROF_FILE=3DLLVM_PROFILE_FILE=3D"$(shell pwd)/code-%p.profclangr" 377c377 < CONFIG_ARGS=3D '--enable-optimizations' --- > CONFIG_ARGS=3D '--enable-optimizations' 'CC=3Dclang' diff -r Python-3.13.1-noCC/Makefile.pre Python-3.13.1-CC_clang/Makefile.pre 37,38c37,38 < CC=3D cc -pthread < CXX=3D c++ -pthread --- > CC=3D clang -pthread > CXX=3D clang++ -pthread 50,53c50,53 < PGO_PROF_GEN_FLAG=3D < PGO_PROF_USE_FLAG=3D < LLVM_PROF_MERGER=3D < LLVM_PROF_FILE=3D --- > PGO_PROF_GEN_FLAG=3D-fprofile-instr-generate > PGO_PROF_USE_FLAG=3D-fprofile-instr-use=3D"$(shell pwd)/code.profclangd" > LLVM_PROF_MERGER=3D /usr/bin/llvm-profdata merge -output=3D"$(shell pwd)/= code.profclangd" "$(shell pwd)"/*.profclangr=20 > LLVM_PROF_FILE=3DLLVM_PROFILE_FILE=3D"$(shell pwd)/code-%p.profclangr" 376c376 < CONFIG_ARGS=3D '--enable-optimizations' --- > CONFIG_ARGS=3D '--enable-optimizations' 'CC=3Dclang' This much does not seem to be a FreeBSD issue. --=20 You are receiving this mail because: You are the assignee for the bug.=
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