Index-64 extended API overhaul by ACSimon33 · Pull Request #1276 · Reference-LAPACK/lapack

ACSimon33 · 2026-05-11T15:49:28Z

Description

The way the Index-64 extended API was generated accross BLAS/CBLAS/LAPACK/LAPACKE/TMGLIB wasn't consistent and we never tested if these APIs actually work as we expect them to. I added a consistent way to generate the Index-64 extended APIs for Fortran source files. I used the strategy that was already used for the BLAS sources. We analyze the subsoutine/function name, as well as the external suboutine/function names, that are declared in the source file. Instead of relying on the preprocessor to generate the Index-64 extended APIs, we generate them now ourselves via a CMake script, that replaces the subroutine/function name and the names of the external subroutines/functions with their Index-64 extended API counterparts. The script automatically handles fixed form line length limits.

I used the new generator to generate extended API tests by transforming the entire test framework to use the extended APIs as well. That way we run tests on the extended APIs as well.

Since the generator relies on the fact that the used subroutine/function names are correcty declared in the source files, we need to check that. I added a CMake option to disable the default (non-extended) API. That means we can build a LAPACK library that only contains the Index-64 extended APIs. If we now forget to declare a subroutine/function name in the source file, the build will fail because the generator won't replace the name and the compiler won't find the symbol becasue the default API doesn't exist.

Doing this revealed that we had a lot of missing declarations in the source files, as well as unused declarations. I added the missing declarations and removed the unused ones. Using the exteneded-API-only build, we can be sure from now on that all the used subroutine/function names are declared correctly in the source files.

Some other changes:

The generation of the extended API now has CMake targets. That means when we run CMake configure again, we don't need to rebuild everything (before we had to rebuild everything because we copied the sources with every configure).
cblas_zaxpby_64 was called cblas_zaxbpy_64

This MR also contains commits of #1260 and #1261. So those should be merged first, and then this branch should be rebased.

…ffect (flang warning)

…Intel Classic compiler to fail on Windows

…m macOS linker)

…ings for Intel Classic compilers

… support _Complex)

…e already tested in the complex tests

… are not supported and the trick to load the test xerbla first doesn't work on Windows when using shared libraries.

…dy by CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS

…target individually

…CESS

…m the original source file

Co-authored-by: Copilot <copilot@github.com>

…sary ones)

Co-authored-by: Copilot <copilot@github.com>

…ault API redundantly. Co-authored-by: Copilot <copilot@github.com>

Co-authored-by: Copilot <copilot@github.com>

Copilot

Pull request overview

This PR overhauls how the Index-64 “extended API” is generated and validated across the project by switching from preprocessor-based renaming to a CMake-driven source generator for Fortran, and by exercising the extended API through transformed test builds (including an “extended-only” CI job).

Changes:

Introduce a unified CMake helper + generator to produce _64-suffixed Fortran sources at build time (with fixed-form line wrapping).
Add/adjust build options to support building only the extended API (disabling the default API) and extend CI to run that configuration.
Update many sources/tests to ensure all called routines are explicitly declared so the generator can reliably rewrite symbol names; plus assorted CMake cleanups and minor API fixes (e.g., cblas_zaxpby_64 name).

Reviewed changes

Copilot reviewed 292 out of 296 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
.github/workflows/cmake.yml	Adds CI job to build+test an extended-API-only configuration (and formatting tweaks).
BLAS/SRC/CMakeLists.txt	Switches BLAS extended-API generation to the new generator + BUILD_DEFAULT_API gating.
BLAS/TESTING/CMakeLists.txt	Creates extended-API variants of BLAS tests and rewrites `.in` files for `_64` outputs.
CBLAS/examples/CMakeLists.txt	Gates default-API examples and keeps extended-API example builds.
CBLAS/include/CMakeLists.txt	Stops copying test header to build dir; continues installing/exporting CBLAS headers.
CBLAS/include/cblas_64.h	Fixes typo: `cblas_zaxpby_64` declaration name.
CBLAS/include/cblas_globals.h	New header defining import decoration for CBLAS global variables.
CBLAS/src/cblas_globals.c	Refactors globals to use a header + optional dllimport decoration.
CBLAS/testing/CMakeLists.txt	Refactors test creation; adds extended-API test targets using generated Fortran sources.
CBLAS/testing/c_cblas1.c	Routes CBLAS calls via `API_SUFFIX(...)` for extended API.
CBLAS/testing/c_cblat3.f	Updates EXTERNAL list to include required checker routine.
CBLAS/testing/c_dblas1.c	Routes CBLAS calls via `API_SUFFIX(...)`; removes unused wrappers.
CBLAS/testing/c_dblat1.f	Updates EXTERNAL list for added tests (AXPBY).
CBLAS/testing/c_dblat2.f	Fixes/updates EXTERNAL references (e.g., `CDGER`) and formatting.
CBLAS/testing/c_sblas1.c	Routes CBLAS calls via `API_SUFFIX(...)`; removes unused wrappers.
CBLAS/testing/c_sblas3.c	Routes CBLAS calls via `API_SUFFIX(...)` for extended API.
CBLAS/testing/c_sblat1.f	Updates EXTERNAL list for added tests (AXPBY).
CBLAS/testing/c_sblat2.f	Line-wrap/EXTERNAL formatting cleanup.
CBLAS/testing/c_xerbla.c	Renames test xerbla hook to `API_SUFFIX(cblas_xerbla)` and updates call sites.
CBLAS/testing/c_zblas1.c	Routes CBLAS calls via `API_SUFFIX(...)` for extended API.
CBLAS/testing/c_zblat1.f	Updates EXTERNAL list for added tests (AXPBY).
CBLAS/testing/c_zblat3.f	Updates EXTERNAL list to include required checker routine.
CMAKE/CheckLAPACKCompilerFlags.cmake	Adjusts compiler flags handling (Intel fp strict options, diagnostics, etc.).
CMAKE/ExtendedAPIHelpers.cmake	New CMake helper to generate `_64`-suffixed Fortran sources at build time.
CMakeLists.txt	Raises minimum CMake, adds BUILD_DEFAULT_API option, enables PIC by default, adds extended-API warning.
INSTALL/CMakeLists.txt	Raises minimum CMake version.
INSTALL/dsecnd_INT_ETIME.f	Removes redundant declaration to rely on `INTRINSIC ETIME`.
INSTALL/second_INT_ETIME.f	Removes redundant declaration to rely on `INTRINSIC ETIME`.
LAPACKE/CMakeLists.txt	Refactors LAPACKE object composition for default vs extended API; adds common source grouping.
LAPACKE/example/CMakeLists.txt	Gates default API examples; links examples only to LAPACKE target.
LAPACKE/include/lapack.h	Makes `LAPACK_lsame` follow integer-specific suffixing (`LAPACK_GLOBAL_SUFFIX`).
LAPACKE/mangling/CMakeLists.txt	Raises minimum CMake version.
LAPACKE/src/CMakeLists.txt	Introduces COMMON_SOURCES variable (e.g., `lapacke_nancheck.c`).
LAPACKE/utils/CMakeLists.txt	Introduces COMMON_UTILS variable for shared utility sources.
SRC/CMakeLists.txt	Uses BUILD_DEFAULT_API gating and new generator for extended API LAPACK sources; global PIC reliance.
SRC/VARIANTS/cholesky/RL/cpotrf.f	Adjusts EXTERNAL list (removes unused GEMM).
SRC/VARIANTS/cholesky/RL/dpotrf.f	Adjusts EXTERNAL list (removes unused GEMM).
SRC/VARIANTS/cholesky/RL/spotrf.f	Adjusts EXTERNAL list (removes unused GEMM).
SRC/VARIANTS/cholesky/RL/zpotrf.f	Adjusts EXTERNAL list (removes unused GEMM).
SRC/VARIANTS/cholesky/TOP/cpotrf.f	Adjusts EXTERNAL list (removes unused GEMM).
SRC/VARIANTS/cholesky/TOP/dpotrf.f	Adjusts EXTERNAL list (removes unused GEMM).
SRC/VARIANTS/cholesky/TOP/spotrf.f	Adjusts EXTERNAL list (removes unused GEMM).
SRC/VARIANTS/cholesky/TOP/zpotrf.f	Adjusts EXTERNAL list (removes unused GEMM).
SRC/cgeev.f	Ensures `SISNAN` is declared external for generator correctness.
SRC/cgeqr.f	Removes now-unneeded LSAME declaration; keeps `SROUNDUP_LWORK` external.
SRC/cgelq.f	Removes now-unneeded LSAME declaration; keeps `SROUNDUP_LWORK` external.
SRC/cgedmd.f90	Adjusts EXTERNAL list to avoid suffixing CLANGE incorrectly (shared vs integer-specific).
SRC/chesv_aa.f	Removes unused ILAENV declaration and keeps required externals.
SRC/chbev_2stage.f	Updates EXTERNAL list for actually-used routines.
SRC/chseqr.f	Simplifies EXTERNAL list (removes unused `SROUNDUP_LWORK` entry).
SRC/clahef_aa.f	Cleans EXTERNAL lists to match actual calls.
SRC/clahef_rk.f	Fixes EXTERNAL list to use `CGEMMTR` (matches actual calls).
SRC/claqr5.f	Removes unused `CTRMM` from EXTERNAL list.
SRC/clarft.f	Adds `CLARFT_LVL2` to EXTERNAL list.
SRC/claswlq.f	Removes unused LSAME/ILAENV externals for generator correctness.
SRC/clasyf_aa.f	Removes unused ILAENV from externals; keeps required routines.
SRC/clatrs3.f	Adds missing `CGEMM` to externals.
SRC/clatsqr.f	Fixes EXTERNAL function list (and contains a modified doc reference line).
SRC/crscl.f	Removes unused `CLADIV` external declaration.
SRC/csysv_aa.f	Removes unused ILAENV external declaration.
SRC/cunbdb6.f	Adds missing `EXTERNAL SLAMCH` declaration.
SRC/dgeev.f	Ensures `DISNAN` is declared external for generator correctness.
SRC/dgeqr.f	Removes now-unneeded LSAME declaration.
SRC/dgelq.f	Removes now-unneeded LSAME declaration.
SRC/dgedmdq.f90	Removes unused `EXTERNAL DGEMM` declaration.
SRC/dlaqr5.f	Removes unused `DTRMM` from EXTERNAL list.
SRC/dlarft.f	Adds `DLARFT_LVL2` to EXTERNAL list.
SRC/dlapy2.f	Adds missing `EXTERNAL DLAMCH` declaration.
SRC/dlapy3.f	Adds missing `EXTERNAL DLAMCH` declaration.
SRC/dlasyf_aa.f	Removes unused ILAENV from externals; keeps required routines.
SRC/dlaswlq.f	Removes unused LSAME external declaration.
SRC/dlatrs3.f	Adds missing `DGEMM` to externals.
SRC/dlatsqr.f	Removes unused LSAME external declaration.
SRC/dopmtr.f	Adds `DLARF1L` to EXTERNAL list.
SRC/dorbdb4.f	Switches EXTERNAL list to `DLARF1F` to match actual call.
SRC/dorbdb6.f	Adds missing `EXTERNAL DLAMCH` declaration.
SRC/dorgr2.f	Switches EXTERNAL list to `DLARF1L` to match actual call.
SRC/dsysv_aa.f	Removes unused ILAENV external declaration.
SRC/ilaenv.f	Removes unused `IPARAM2STAGE` external declaration.
SRC/sggev3.f	Adds missing `XERBLA` to EXTERNAL list.
SRC/sgeev.f	Ensures `SISNAN` is declared external for generator correctness.
SRC/sgeqr.f	Removes unused LSAME external declaration.
SRC/sgelq.f	Removes unused LSAME external declaration.
SRC/sgedmdq.f90	Removes unused `EXTERNAL SGEMM` declaration.
SRC/slaqr2.f	EXTERNAL list formatting/cleanup while preserving semantics.
SRC/slaqr5.f	Removes unused `STRMM` from EXTERNAL list.
SRC/slarft.f	Adds `SLARFT_LVL2` to EXTERNAL list.
SRC/slapy2.f	Adds missing `EXTERNAL SLAMCH` declaration.
SRC/slapy3.f	Adds missing `EXTERNAL SLAMCH` declaration.
SRC/slasyf_aa.f	Removes unused ILAENV from externals; keeps required routines.
SRC/slaswlq.f	Removes unused LSAME external declaration; trims external subroutines list.
SRC/slatrs3.f	Adds missing `SGEMM` to EXTERNAL list.
SRC/slatsqr.f	Removes unused LSAME external declaration.
SRC/sorbdb6.f	Adds missing `EXTERNAL SLAMCH` declaration.
SRC/zgeev.f	Ensures `DISNAN` is declared external for generator correctness.
SRC/zgeqr.f	Removes unused LSAME external declaration.
SRC/zgelq.f	Removes unused LSAME external declaration.
SRC/zgelss.f	Adds missing `ZUNMQR` to EXTERNAL list.
SRC/zgedmd.f90	Adjusts EXTERNAL list to avoid suffixing ZLANGE incorrectly (shared vs integer-specific).
SRC/zhbev_2stage.f	Updates EXTERNAL list to match actually-used routines.
SRC/zhesv_aa.f	Removes unused ILAENV external declaration.
SRC/zhesv_aa_2stage.f	Removes unused ILAENV external declaration.
SRC/zhetrf_aa.f	EXTERNAL list formatting/cleanup while preserving semantics.
SRC/zlahef_aa.f	Cleans EXTERNAL lists to match actual calls.
SRC/zlaqr5.f	Removes unused `ZTRMM` from EXTERNAL list.
SRC/zlarft.f	Adds `ZLARFT_LVL2` to EXTERNAL list.
SRC/zlaswlq.f	Removes unused LSAME external declaration.
SRC/zlasyf_aa.f	Removes unused ILAENV from externals; keeps required routines.
SRC/zlatrs3.f	Adds missing `ZGEMM` to externals.
SRC/zlatsqr.f	Removes unused LSAME external declaration.
SRC/zrscl.f	Removes unused `ZLADIV` external declaration; updates scaling externals list.
SRC/zsytrf_aa_2stage.f	Updates EXTERNAL list to match actually-used routines.
SRC/zsysv_aa.f	Removes unused ILAENV external declaration.
SRC/zunbdb6.f	Adds missing `EXTERNAL DLAMCH` declaration.
TESTING/EIG/cbdt05.f	Updates externals list to match actual usage.
TESTING/EIG/cckgsv.f	Updates EXTERNAL list (adds `CGGSVD3`) to match actual calls.
TESTING/EIG/cchkdmd.f90	Updates externals list for generator correctness.
TESTING/EIG/cchkee.F	Updates external program list (test driver organization).
TESTING/EIG/cchkhb2stg.f	Adds missing copy routine to EXTERNAL list.
TESTING/EIG/cchkee.F	Updates program EXTERNAL list ordering/coverage.
TESTING/EIG/cdrges3.f	Adds missing `XLAENV` to externals.
TESTING/EIG/cdrgev3.f	Adds missing `XLAENV` to externals.
TESTING/EIG/cgqrts.f	Adds missing `CGGQRF` to externals.
TESTING/EIG/cglmts.f	Adds missing externals for generator correctness.
TESTING/EIG/chet22.f	Adds missing `CUNT01` to externals.
TESTING/EIG/clsets.f	Adds missing copy routine to EXTERNAL list.
TESTING/EIG/dbdt04.f	Removes unused externals.
TESTING/EIG/dbdt05.f	Removes unused externals.
TESTING/EIG/dchkdmd.f90	Updates externals list for generator correctness.
TESTING/EIG/dchkee.F	Updates external program list (test driver organization).
TESTING/EIG/dchksb2stg.f	Adds missing copy routine to EXTERNAL list.
TESTING/EIG/ddrvbd.f	Adds missing `DBDT05` to externals.
TESTING/EIG/ddrges3.f	Adds missing `XLAENV` to externals.
TESTING/EIG/ddrgev3.f	Adds missing `XLAENV` to externals.
TESTING/EIG/ddrvst2stg.f	Trims externals list to those actually used.
TESTING/EIG/dget40.f	Fixes EXTERNAL list to include actually-called routine.
TESTING/EIG/dchkbd.f	Removes unused external function declaration (`DSXT1`).
TESTING/EIG/dsyl01.f	Adds missing `DISNAN` to externals.
TESTING/EIG/sbdt04.f	Removes unused externals.
TESTING/EIG/sbdt05.f	Removes unused externals.
TESTING/EIG/schkdmd.f90	Updates externals list for generator correctness.
TESTING/EIG/schkee.F	Updates external program list (test driver organization).
TESTING/EIG/schksb2stg.f	Adds missing copy routine to EXTERNAL list.
TESTING/EIG/sdrvbd.f	Adds missing `SBDT05` to externals.
TESTING/EIG/sdrges3.f	Adds missing `XLAENV` to externals.
TESTING/EIG/sdrgev3.f	Adds missing `XLAENV` to externals.
TESTING/EIG/sdrvst2stg.f	Trims externals list to those actually used.
TESTING/EIG/sget34.f	Adds missing `SHST01` to externals.
TESTING/EIG/sglmts.f	Adds missing externals for generator correctness.
TESTING/EIG/sgqrts.f	Adds missing `SGGQRF` to externals.
TESTING/EIG/slsets.f	Adds missing `SCOPY` to EXTERNAL list.
TESTING/EIG/ssyt22.f	Adds missing `SORT01` to externals.
TESTING/EIG/zbdt05.f	Removes unused externals and keeps needed functions.
TESTING/EIG/zchkdmd.f90	Fixes missing `ZLANGE` external declaration.
TESTING/EIG/zchkee.F	Updates external program list (test driver organization).
TESTING/EIG/zchkhb2stg.f	Adds missing copy routine to EXTERNAL list.
TESTING/EIG/zchkhs.f	Trims externals list to those actually used.
TESTING/EIG/zdrges3.f	Adds missing `XLAENV` to externals.
TESTING/EIG/zdrgev3.f	Adds missing `XLAENV` to externals.
TESTING/EIG/zdrvst2stg.f	Trims externals list to those actually used.
TESTING/EIG/zerrec.f	Adds `ZTRSYL3` to externals.
TESTING/EIG/zerred.f	Fixes name `ZGEJSV` in externals list.
TESTING/EIG/zerrhs.f	Updates externals list (adds `ZGEHD2`).
TESTING/EIG/zerrst.f	Extends externals list for additional error-exit coverage.
TESTING/LIN/cchkaa.F	Adds missing test drivers to EXTERNAL list.
TESTING/LIN/cchkhe.f	Adds missing routine (`CHETRS2`) to EXTERNAL list.
TESTING/LIN/cchkhe_aa_2stage.f	Adds missing `CLAIPD` to EXTERNAL list.
TESTING/LIN/cchklqtp.f	Switches which LQT test is referenced in EXTERNAL list.
TESTING/LIN/cchkqrtp.f	Adds missing `CQRT05` to EXTERNAL list.
TESTING/LIN/cchktsqr.f	Updates EXTERNAL list for generator correctness.
TESTING/LIN/cchkrfp.f	Adds missing error-test routine to EXTERNAL list.
TESTING/LIN/cchksy.f	Adds missing `CSYTRS2` to EXTERNAL list.
TESTING/LIN/cchksy_aa_2stage.f	Trims EXTERNAL list to only-used routines.
TESTING/LIN/cdrvhe_aa.f	Trims external declarations to those actually used.
TESTING/LIN/cdrvhe_aa_2stage.f	Trims external declarations to those actually used.
TESTING/LIN/cdrvhe_rk.f	Fixes EXTERNAL list (`CSYTRI_3`).
TESTING/LIN/cdrvls.f	Updates externals list (adds `CSCAL`).
TESTING/LIN/cdrvrf3.f	Fixes EXTERNAL list (`CGELQF`).
TESTING/LIN/cdrvsy_aa.f	Trims external declarations to those actually used.
TESTING/LIN/cdrvsy_aa_2stage.f	Trims external declarations to those actually used.
TESTING/LIN/cdrvsy_rook.f	Trims external declarations to those actually used.
TESTING/LIN/cerrhe.f	Fixes EXTERNAL list (removes/renames symbol entry).
TESTING/LIN/cerrsy.f	Adds missing AA/2stage routines to EXTERNAL list.
TESTING/LIN/cerrtsqr.f	Adds TSQR/LASWLQ routines to EXTERNAL list.
TESTING/LIN/cerrvx.f	Adds missing AA routines to EXTERNAL list.
TESTING/LIN/chet01_aa.f	Updates EXTERNAL list to explicitly declare called subroutines.
TESTING/LIN/clqt04.f	Adds explicit EXTERNAL subroutine declarations.
TESTING/LIN/clqt05.f	Adds explicit EXTERNAL subroutine declarations.
TESTING/LIN/cqrt04.f	Adds explicit EXTERNAL subroutine declarations.
TESTING/LIN/cqrt05.f	Adds explicit EXTERNAL subroutine declarations.
TESTING/LIN/ctsqr01.f	Adds explicit EXTERNAL subroutine declarations.
TESTING/LIN/cunhr_col02.f	Removes unused scaling externals; line-wrap cleanup.
TESTING/LIN/csyt01_aa.f	Updates EXTERNAL list to explicitly declare called subroutines.
TESTING/LIN/dchkaa.F	Adds missing test drivers to EXTERNAL list.
TESTING/LIN/dchkqrtp.f	Adds missing `DQRT05` to EXTERNAL list.
TESTING/LIN/dchktsqr.f	Updates EXTERNAL list for generator correctness.
TESTING/LIN/dchkrfp.f	Adds missing error-test routine to EXTERNAL list.
TESTING/LIN/ddrvab.f	Adds missing solve routine to EXTERNAL list.
TESTING/LIN/ddrvac.f	Adds missing `ALAHD` to EXTERNAL list.
TESTING/LIN/ddrvgbx.f	Removes unused `DGBEQUB` from EXTERNAL list.
TESTING/LIN/ddrvrf3.f	Fixes EXTERNAL list (`DGELQF`).
TESTING/LIN/ddrvsy_aa.f	Trims external declarations to those actually used.
TESTING/LIN/ddrvsy_aa_2stage.f	Trims external declarations to those actually used.
TESTING/LIN/ddrvsy_rook.f	Trims external declarations to those actually used.
TESTING/LIN/derrtsqr.f	Adds TSQR/LASWLQ routines to EXTERNAL list.
TESTING/LIN/dlqt04.f	Adds explicit EXTERNAL subroutine declarations.
TESTING/LIN/dlqt05.f	Adds explicit EXTERNAL subroutine declarations.
TESTING/LIN/dorhr_col02.f	Removes unused scaling externals; line-wrap cleanup.
TESTING/LIN/dqrt04.f	Adds explicit EXTERNAL subroutine declarations.
TESTING/LIN/dqrt05.f	Adds explicit EXTERNAL subroutine declarations.
TESTING/LIN/dsyt01_aa.f	Updates EXTERNAL list to explicitly declare called subroutines.
TESTING/LIN/dtsqr01.f	Adds explicit EXTERNAL subroutine declarations.
TESTING/LIN/schkaa.F	Adds missing test drivers to EXTERNAL list.
TESTING/LIN/schklq.f	Adds missing `SGELS` to EXTERNAL list.
TESTING/LIN/schkrfp.f	Adds missing error-test routine to EXTERNAL list.
TESTING/LIN/schktsqr.f	Updates EXTERNAL list for generator correctness.
TESTING/LIN/sdrvsy_aa.f	Trims external declarations to those actually used.
TESTING/LIN/sdrvsy_aa_2stage.f	Trims external declarations to those actually used.
TESTING/LIN/sdrvsy_rook.f	Trims external declarations to those actually used.
TESTING/LIN/serrtsqr.f	Adds TSQR/LASWLQ routines to EXTERNAL list.
TESTING/LIN/slqt04.f	Adds explicit EXTERNAL subroutine declarations.
TESTING/LIN/slqt05.f	Adds explicit EXTERNAL subroutine declarations.
TESTING/LIN/sorhr_col02.f	Removes unused scaling externals; line-wrap cleanup.
TESTING/LIN/sqrt04.f	Removes unused `LSAME` external reference.
TESTING/LIN/sqrt05.f	Removes unused `LSAME` external reference.
TESTING/LIN/ssyt01_aa.f	Removes unused `SLAVSY` from EXTERNAL list.
TESTING/LIN/stsqr01.f	Adds explicit EXTERNAL subroutine declarations.
TESTING/LIN/zchkaa.F	Adds missing test drivers to EXTERNAL list.
TESTING/LIN/zchkhe.f	Adds missing routine (`ZHETRS2`) to EXTERNAL list.
TESTING/LIN/zchkhe_aa_2stage.f	Adds missing `ZLAIPD` to EXTERNAL list.
TESTING/LIN/zchklqtp.f	Switches which LQT test is referenced in EXTERNAL list.
TESTING/LIN/zchkqrtp.f	Adds missing `ZQRT05` to EXTERNAL list.
TESTING/LIN/zchktsqr.f	Updates EXTERNAL list for generator correctness.
TESTING/LIN/zchkrfp.f	Adds missing error-test routine to EXTERNAL list.
TESTING/LIN/zchksy_aa_2stage.f	Trims EXTERNAL list to only-used routines.
TESTING/LIN/zdrvac.f	Adds missing `ALAHD` to EXTERNAL list.
TESTING/LIN/zdrvab.f	Adds missing solve routine to EXTERNAL list.
TESTING/LIN/zdrvhe_aa.f	Trims external declarations to those actually used.
TESTING/LIN/zdrvhe_aa_2stage.f	Trims external declarations to those actually used.
TESTING/LIN/zdrvls.f	Updates externals list (adds `ZSCAL`).
TESTING/LIN/zdrvrf3.f	Fixes EXTERNAL list (`ZGELQF`).
TESTING/LIN/zdrvsy_aa.f	Trims external declarations to those actually used.
TESTING/LIN/zdrvsy_aa_2stage.f	Trims external declarations to those actually used.
TESTING/LIN/zdrvsy_rook.f	Trims external declarations to those actually used.
TESTING/LIN/zerrsy.f	Adds missing AA/2stage routines to EXTERNAL list.
TESTING/LIN/zerrtsqr.f	Adds TSQR/LASWLQ routines to EXTERNAL list.
TESTING/LIN/zerrvx.f	Adds missing AA routines to EXTERNAL list.
TESTING/LIN/zhet01_aa.f	Updates EXTERNAL list to explicitly declare called subroutines.
TESTING/LIN/zlqt04.f	Adds explicit EXTERNAL subroutine declarations.
TESTING/LIN/zlqt05.f	Adds explicit EXTERNAL subroutine declarations.
TESTING/LIN/zpot06.f	Removes unused `LSAME` external reference.
TESTING/LIN/zqrt04.f	Adds explicit EXTERNAL subroutine declarations.
TESTING/LIN/zqrt05.f	Adds explicit EXTERNAL subroutine declarations.
TESTING/LIN/zsyt01_aa.f	Updates EXTERNAL list to explicitly declare called subroutines.
TESTING/LIN/ztsqr01.f	Adds explicit EXTERNAL subroutine declarations.
TESTING/LIN/zunhr_col02.f	Removes unused scaling externals; line-wrap cleanup.
TESTING/MATGEN/CMakeLists.txt	Switches MATGEN extended API generation to new helper; adds BUILD_DEFAULT_API gating.
TESTING/MATGEN/matgen_64.h	Removes preprocessor-based MATGEN `_64` symbol remapping header (now generated).
lapack_build.cmake	Raises minimum CMake version.

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

 *> Sequential TSQR in Section 2.2 of [1].
 *>
-*> [1] “Communication-Optimal Parallel and Sequential QR and LU Factorizations,”
+*> [1] “Communication-Optimal Parallel and Sequential QR and LU Factorizations,�
 *>     J. Demmel, L. Grigori, M. Hoemmen, J. Langou,


+function(add_blas_test name source)
+  get_filename_component(baseNAME ${source} NAME_WE)
+  set(test_input "${CMAKE_CURRENT_SOURCE_DIR}/${baseNAME}.in")
+
+  if(BUILD_DEFAULT_API)
+    _add_blas_test(${name} ${source} "${test_input}")
+  endif()
+
+  if(BUILD_INDEX64_EXT_API)
+    include(ExtendedAPIHelpers)
+    generate_64bit_suffixed_sources(${name} source source_64 NO_STRING_REPLACEMENTS)


ACSimon33 · 2026-05-12T10:33:10Z

Since there are a lot of changes in the PR, I've decided to split it into multiple smaller PRs that are more digestible.

…se XBLAS doesn't ship extended APIs.

ACSimon33 and others added 30 commits April 23, 2026 18:00

Remove type specifiers of intrinsic function ETIME, since it has no e…

8bcbf5d

…ffect (flang warning)

Fixed all lines that were longer than 72 characters. That caused the …

c59b28a

…Intel Classic compiler to fail on Windows

Remove unnessesary blas lib from LAPACKE examples (caused warning fro…

8d8df56

…m macOS linker)

Added fp-model=strict for Intel on Windows; disabled deprecation warn…

1bc5d3a

…ings for Intel Classic compilers

Set C standard explicitly to C99 (needed by Intel classic compiler to…

2328018

… support _Complex)

Fix export & import of global CBLAS symbols for shared Windows builds

3afa827

Remove unnecessary test_inlude directory in the build folder

cd40e85

Remove complex ?asum and ?nrm2 routines from real tests since they ar…

1092f35

…e already tested in the complex tests

Skip cblas xerbla tests for shared Windows builds, since weak symbols…

7cca0ea

… are not supported and the trick to load the test xerbla first doesn't work on Windows when using shared libraries.

Remove the explicit __declspec(dllexport) since that is handles alrea…

5a687f4

…dy by CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS

Use CMAKE_POSITION_INDEPENDENT_CODE instead of enabling PIC for each …

e18912f

…target individually

Bump required CMake version to 3.18 because we rely on Fortran_PREPRO…

d620756

…CESS

Added CMake helper which generate a 64bit suffixed Fortran source fro…

76dee5d

…m the original source file

New 64bit extended APi generator works

01ad09c

Added BUILD_DEFAULT_API CMake open to build only the 64bit extended API

530d74c

Added BUILD_DEFAULT_API CMake open to build only the 64bit extended API

b92efb6

Fixed missing EXTERNAL declarations in LAPACK sources

2eaac71

Add missing EXTERNAL declarations in TESTING/EIG

80b4f53

Co-authored-by: Copilot <copilot@github.com>

Add missing external declarations in TESTING/LIN (and removed unneces…

d31bf01

…sary ones)

Removed unnecessary external declarations in TESTING/EIG

a6c1fd8

Add missing external declarations in CBLAS/TESTING

d4fbf36

Add missing external declarations in SRC (and removed unused ones)

b8c9a98

Fixed CBLAS symbol name: cblas_zaxbpy_64 -> cblas_zaxpby_64

7872e2d

Added API_SUFFIX to CBLAS tests

b4ba901

Added BUILD_DEFAULT_API guards around default CBLAS/LAPACKE examples

84ec80d

Added _64 suffixed LAPACK test suite targets

932ae47

Added _64 suffixed CTests

a59517b

Added _64 suffixed BLAS tests

531e611

Added _64 suffixed CBLAS tests

a32aa4b

Co-authored-by: Copilot <copilot@github.com>

Add some more CMake messages during configure

275bc4c

ACSimon33 and others added 9 commits May 4, 2026 16:49

Make sure to net generate 64bit suffixed source multiple times

fdee741

Co-authored-by: Copilot <copilot@github.com>

Remove old WIndows complex settings

3e31f5a

Warn the user if Index-64 API is build as extended API and as the def…

0fdfcd6

…ault API redundantly. Co-authored-by: Copilot <copilot@github.com>

Fix CMAKE while loops for older CMake versions

de32008

Added _64 suffix to LAPACKE_lsame as well

9524bb7

Fix replaced string literals in _64 suffixed sources

5a79404

NAG Fortran on Windows expected -i8 not /i8

01b6937

Added CI pipeline to test _64 extended API on its own.

04643e1

Merge branch 'master' into refactor_ext_64_api

b9ee49b

Co-authored-by: Copilot <copilot@github.com>

Copilot AI review requested due to automatic review settings May 11, 2026 15:49

Copilot started reviewing on behalf of ACSimon33 May 11, 2026 15:50 View session

Copilot AI reviewed May 11, 2026

View reviewed changes

ACSimon33 marked this pull request as draft May 12, 2026 10:31

Don't generate _64 suffixed sources for XBLAS related routines, becau…

83fdf63

…se XBLAS doesn't ship extended APIs.

ACSimon33 mentioned this pull request May 13, 2026

Fix external declarations #1279

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Index-64 extended API overhaul#1276

Index-64 extended API overhaul#1276
ACSimon33 wants to merge 40 commits into
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ACSimon33:refactor_ext_64_api

ACSimon33 commented May 11, 2026 •

edited

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ACSimon33 commented May 11, 2026 •

edited

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