Update changelog for 0.3.34 (#5897)

* Update for 0.3.34

Author: martin-frbg

Changelog.txt

@@ -1,4 +1,114 @@
 OpenBLAS ChangeLog
+====================================================================
+Version 0.3.34
+16-Jul-2026
+
+general:
+ - Fixed potential race conditions between concurrent calls to level3 BLAS
+   functions (inadvertent use of non-unified locks)
+ - Fixed potential race condition in GETRF
+ - Added or improved multithreading thresholds in SPR,SPR2,SYR,SYR2,TBMV,TPMV
+ - Added multithreading thresholds to GETRS, LAED3, LASWP, LAUUM, TRTRS, ZTRTRI 
+ - Added a BLAS extension for overriding the default error handler (XERBLA) function
+ - Reimplemented the BLAS extension GEADD to support independent transposition of
+   both matrices (unlike the previous, ATLAS-like implementation)
+ - Guarded against spurious NaN values in the reimplemented ?LAED3
+ - Fixed compilation of the BLAS extension tests with CMake
+ - Fixed spurious and conflicting setting of job numbers in gmake builds
+ - Fixed a potential linking issue with the fortran runtime in the BLAS tests
+ - Fixed potential access to unrelated memory in the C fallback versions of LAPACK
+   functions ILAENV and IPARMQ
+ - Fixed the generated pkgfile to support spaces in path names
+ - Added support for compilation with the experimental, LLVM-based memory-safe C toolchain 
+   known as Fil-C
+ - Imported recent updates from Reference-LAPACK to realign with its upcoming 3.13.0 release:
+   - Added non-trivial terminating case to ?LARFT calculation (Reference-LAPACK PR 1163)
+   - Fixed workspace calculation for CUNMLQ with K=0 (Reference-LAPACK PR 1225)
+   - Rearranged computations in C/ZLARTG to avoid large intermediates (PR 1245)
+   - Fixed wrong Y increment used in ?ORDB3/?UNBDB3 (Reference-LAPACK PR 1265)
+   - Fixed wrong name reported in XERBLA call of ZLA_SYRFSX_EXTENDED (PR 1268)
+   - Fixed wrong JOBA type in SGESVJ call of SGEJSV (Reference-LAPACK PR 1269)
+   - Fixed wrong workspace in DGEJSV corrupting memory in DGESVJ (PR 1270)
+   - Fixed wrong or missing EXTERNAL declarations (Reference-LAPACK PR 1271)
+   - Fixed wrong operand number in errors of GGSVD3,UN/ORBDB4,UN/ORCSD (PR 1272)
+   - Fixed sign of error flag in LWORK check of LAQZ0 (Reference-LAPACK PR 1273)
+   - Fixed too small workspace query result from SGGEV3 (Reference-LAPACK PR 1274)
+   - Fixed DLASWLQ not rejecting NB=0 (Reference-LAPACK PR 1275)
+   - Avoid immediate overflows in GEJSV,GESVJ,GESVDX,GEDMD (Reference-LAPACK PR 1283)
+   - Ignore LDU value when U unused in LAPACKE_?GESVD_WORK (Reference-LAPACK PR 1284)
+   - Fixed premature return before fallback code in BDSQR (Reference-LAPACK PR 1285)
+   - Increased tolerance in LASD2 to improve BDSDC stability (Reference-LAPACK PR 1286)
+   - Fixed row-major A dimension for SIDE=R in LAPACKE_?TPRFB_WORK (PR 1287)
+   - Fixed seed advancement in SLARUV/DLARUV (Reference-LAPACK PR 1288)
+   - Fixed workspace queries for TZRZF/UNMRZ in GELSY (Reference-LAPACK PRs 1289/1325)
+   - Avoid immediate overflows in ?LARFGP (Reference-LAPACK PR 1290) 
+   - Added handling of degenerate cases in OR/UNCSD2BY1 (Reference-LAPACK PR 1291)
+   - Fixed workspace for tiny inputs in ORM/UNM-L/R-Q and -Q-L/R (PR 1292)
+   - Scaled convergence thresholds in ?BBCSD to improve accuracy (PR 1293)
+   - Fixed integer overflow in the LAPACKE nancheck helpers (Reference-LAPACK PR 1294)
+   - Relaxed eigenvalue consistency checks in testsuite (Reference-LAPACK PR 1297)
+   - Fixed test failures in ?CHKLQ with NB=1 and M=N (Reference-LAPACK PR 1298)
+   - Switched to QR algorithm in ?BDSDC for bidiagonal SVD with vectors (PR 1300)
+   - Replaced HUGE intrinsic in ?TGSJA with parameter for consistency (PR 1305)
+   - Corrected description of QMAX parameter in ?LASQ3 (Reference-LAPACK PR 1307)
+   - Fixed bad scaling in ?LARFF that slowed down DSYEVR/ZHEEVR (PR 1309)
+   - Fixed handling of negative increments in ?LARF/?LARF1F/?LARF1L (PR 1315)
+   - Increased tolerances in ?LAED to match changes in ?LASD (PR 1317)
+   - Fixed LAPACKE_?lacpy_work destroying data in row-major mode (PR 1318) 
+
+arm:
+ - Added a significantly faster SGEMM kernel
+
+arm64:
+ - Added optimized kernels for OMATCOPY_CT and OMATCOPY_RT on all targets
+ - Fixed SDOT/DDOT on non-SVE-capable cpus not initializing the result correctly
+ - Fixed miscompilation of CGETF2/ZGETF2 by LLVM on Apple M
+ - Fixed SSYRK miscalculation on Apple M systems bigger than the Mac mini
+ - Fixed remaining cases of CMake build failure due to long argument lists on OSX
+ - On OSX, reduced the list of DYNAMIC_ARCH targets to those relevant for this os
+ - Fixed platform detection and cross-builds to iOS on OSX with AppleClang
+ - Fixed gmake builds for SME targets on OSX with AppleClang
+ - Improved the compiler test for SME compatibility in the CMake build files
+ - Fixed runtime detection of SME in DYNAMIC_ARCH builds made with CMake
+ - Restored a fix for building DYNAMIC_ARCH under Windows on Arm that was inadvertently
+   dropped in 0.3.33)
+ - Corrected the selection criteria for the SME-based SGEMM kernel on Apple M
+ - Fixed DYNAMIC_ARCH builds on hosts without SVE capability
+ - Fixed building a shared library with NAG Fortran on OSX
+ - Fixed misdetection of C11 capability (and resulting race conditions during concurrent 
+   calls) in Clang builds under OSX
+ - Fixed miscalculation of Apple M cpu time leading to benchmarks 40 times too slow
+
+loongarch64:
+ - Corrected generation of the LSX/LASX status flags in the configuration files
+ - Fixed potential reads of memory beyond the array bounds in the LA464 SGEMM kernel
+ - Added optimized SDOT, ICAMIN/IZAMIN and ZGEMM kernels for 2K3000
+
+power:
+ - Fixed an incompatibility in the assembly kernels for SCAL on FreeBSD
+ - Fixed a potentially spurious check for gfortran in gmake builds with LLVM
+   that could make POWER9/10 builds fall back to POWER8 kernels
+ - Improved build flags and cpu register constraints for POWER10
+ - Fixed linking issues on BSD
+
+riscv64:
+ - Fixed compilation for DYNAMIC_ARCH with BUILD_BFLOAT16 defined
+ - Fixed SGEMM and DGEMM errors on ZVL256 introduced in 0.3.33
+ - Sped up GEMV on C910V and ZVL256B targets
+ - Improved the x280 S/DROTM kernel and enabled it on ZVL128B/ZVL256B
+ - Added optimized STRSM kernels for ZVL128B/ZVL256B
+ - Added optimized D/C/ZTRSM kernels (RN and RT cases) for ZVL128B/ZVL256B
+ - Added a dedicated target for the SiFive U74 with optimized SGEMM and DGEMM kernels
+ - Made L2 cache size available at runtime for scaling GEMM block sizes
+
+x86_64:
+ - Fixed remaining cases of CMake build failure due to long argument lists on OSX
+ - Improved cpu capability check for recent Zhaoxin cpus
+ - Fixed wrong TRSM results on AMD Barcelona (and Ryzen systems in 32bit builds) 
+ - Added autodetection support for the fake Opteron-like CPUID used by QEMU on AMD hardware
+ - Fixed automatic setting of the BINARY=32 option when building with 32bit toolchains
+ - Fixed miscompilation of GEMM,SYR2K and TPMV kernels with gcc15/gcc16 on 32bit FreeBSD
+
 ====================================================================
 Version 0.3.33
 23-Apr-2026