Commits on Aug 22, 2026
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meson: Add postgresql-$version-llvm-jit-bitcode.pc
This .pc file collects the cflags (in particular the include directories) needed to compile server code, so that the LLVM JIT bitcode emission can reuse them. It is versioned and intentionally scoped to JIT bitcode only, since there is not yet agreement on a stable, general extension-build interface. Author: Andres Freund <andres@anarazel.de> Author: Nazir Bilal Yavuz <byavuz81@gmail.com> Reviewed-by: Peter Eisentraut <peter@eisentraut.org> Discussion: https://postgr.es/m/206b001d-1884-4081-bd02-bed5c92f02ba%40eisentraut.org
authored and Commitfest Bot committed
Aug 22, 2026 -
meson: Add architecture for LLVM bitcode emission
This commit adds support for bitcode emission for backend and extension source files. These bitcode files are installed into the $pkglibdir/bitcode/ directory if LLVM is found. New variable `bitcode_modules` is introduced to generate bitcode files. All required information is gathered in this variable. Then, this variable is processed by the main meson LLVM bitcode emission scripts: src/backend/jit/llvm/bitcode/meson.build -> src/tools/irlink. An example of a possible structure of bitcode_modules is: ``` bitcode_modules = [ { 'name': '...', 'target': ..., 'srcfiles': [ '...', '...', ], 'additional_flags': [ '-I...', '-I...', ], } ] ``` Instead of depending on the generated backend headers explicitly, each bitcode target lists the corresponding extracted object file as an input. The command only consumes the source file, but referencing the object file pulls in its dependencies (e.g. generated headers) without the large slowdown in build.ninja generation that an explicit depends causes. Author: Andres Freund <andres@anarazel.de> Author: Nazir Bilal Yavuz <byavuz81@gmail.com> Author: Diego Fronza <diego.fronza@percona.com> Reviewed-by: Peter Eisentraut <peter@eisentraut.org> Reviewed-by: Diego Fronza <diego.fronza@percona.com> Reviewed-by: Zsolt Parragi <zsolt.parragi@percona.com> Discussion: https://postgr.es/m/206b001d-1884-4081-bd02-bed5c92f02ba%40eisentraut.org
nbyavuz authored and Commitfest Bot committed
Aug 22, 2026 -
meson: Add LLVM bitcode emissions for contrib libraries
The libraries for which bitcode files are generated are selected manually. Bitcode is only worthwhile for extensions that provide lightweight SQL operators/functions that can benefit from being inlined into JIT-compiled expressions, so this is restricted to citext, hstore, intarray, ltree and pg_trgm. Author: Andres Freund <andres@anarazel.de> Author: Nazir Bilal Yavuz <byavuz81@gmail.com> Author: Diego Fronza <diego.fronza@percona.com> Reviewed-by: Peter Eisentraut <peter@eisentraut.org> Reviewed-by: Diego Fronza <diego.fronza@percona.com> Reviewed-by: Zsolt Parragi <zsolt.parragi@percona.com> Discussion: https://postgr.es/m/206b001d-1884-4081-bd02-bed5c92f02ba%40eisentraut.org
nbyavuz authored and Commitfest Bot committed
Aug 22, 2026
