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GCC Administrator
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Daily bump.
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‎ChangeLog‎

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2026-04-30 Christopher Bazley <chris.bazley@arm.com>
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* MAINTAINERS: Add myself to write after approval.
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2026-04-28 Bohan Lei <garthlei@linux.alibaba.com>
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* MAINTAINERS: Add myself to write after approval and DCO.

‎contrib/ChangeLog‎

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2026-04-30 Jakub Jelinek <jakub@redhat.com>
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* gennews (files): Add files for GCC 16.
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2026-04-22 Jakub Jelinek <jakub@redhat.com>
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* gcc-changelog/git_update_version.py (active_refs): Add

‎gcc/ChangeLog‎

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2026-04-30 H.J. Lu <hjl.tools@gmail.com>
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PR target/124878
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* config/i386/i386.cc (x86_64_int_return_registers): Remove
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DI_REG and SI_REG.
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(ix86_function_value_regno_p): Remove DI_REG and SI_REG cases.
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(function_value_64): Replace X86_64_REGPARM_MAX and
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X86_64_SSE_REGPARM_MAX with X86_64_MAX_RETURN_NREGS and
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X86_64_MAX_SSE_RETURN_NREGS for the number of registers used
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in return values.
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* config/i386/i386.h (X86_64_MAX_RETURN_NREGS): New. Defined
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to 2.
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(X86_64_MAX_SSE_RETURN_NREGS): Likewise.
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2026-04-30 H.J. Lu <hjl.tools@gmail.com>
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PR target/125102
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* config/i386/mmx.md (V_16_32_64:*mov<mode>_imm): Disable
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16-bit immediate integer store if TARGET_LCP_STALL is true.
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2026-04-30 Eric Botcazou <ebotcazou@adacore.com>
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* Makefile.in (COVERAGE_FLAGS): Remove obsolete comment.
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2026-04-30 Vladimir N. Makarov <vmakarov@redhat.com>
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* ira-costs.cc (record_reg_classes): Process correctly case
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op_class == NO_REGS.
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2026-04-30 Vladimir N. Makarov <vmakarov@redhat.com>
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* ira-color.cc (assign_hard_reg): Use the right allocno mode to
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call note_conflict.
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2026-04-30 Heiko Eißfeldt <heiko.Eissfeldt@hexco.de>
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PR middle-end/124805
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* tree-ssa.cc (verify_vssa):
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replace recursive calls with iteration for lower stack usage
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2026-04-30 Tomas Härdin <git@haerdin.se>
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* toplev.cc (output_stack_usage_1): Pass RINT_DECL_UNIQUE_NAME
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instead of PRINT_DECL_NAME to print_decl_identifier.
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2026-04-30 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
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* match.pd (`(a !=/== b) &\| ((a|b) ==/!= 0)`):
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Simplify patterns using for loop and remove the `:c`
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on the inner ne/eq.
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2026-04-30 Christopher Bazley <chris.bazley@arm.com>
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* config/aarch64/aarch64-c.cc (aarch64_pragma_target_parse):
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Pass &global_options_set as an argument to
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aarch64_override_options_internal.
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* config/aarch64/aarch64-protos.h (aarch64_override_options_internal):
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Add a parameter declaration for opts_set.
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* config/aarch64/aarch64.cc (aarch64_override_options_internal):
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Add a parameter declaration for opts_set and use the argument
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when invoking SET_OPTION_IF_UNSET.
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(aarch64_override_options): Pass &global_options_set as an argument to
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aarch64_override_options_internal.
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(aarch64_option_restore): As above.
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(aarch64_set_current_function): As above.
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(aarch64_option_valid_attribute_p): As above.
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(aarch64_option_valid_version_attribute_p): As above.
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2026-04-30 Richard Biener <rguenther@suse.de>
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PR tree-optimization/125088
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* tree-vect-slp.cc (vect_bb_slp_scalar_cost): Refactor and
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simplify.
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* tree-vect-stmts.cc (vect_nop_conversion_p): Exclude
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copies with memory accesses.
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2026-04-30 H.J. Lu <hjl.tools@gmail.com>
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PR target/125026
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PR target/125032
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* config/i386/i386-features.cc (ix86_place_single_vector_set):
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Don't check CONST_VECTOR load size.
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(replace_vector_const): Handle constant integer load.
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(x86_cse::x86_cse): Convert CONST_VECTOR load no larger than
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integer to constant integer load and keep redundant constant
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integer load. Generate zero CONST_VECTOR load.
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2026-04-30 Michiel Derhaeg <Michiel.Derhaeg@synopsys.com>
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* doc/params.texi: Added --param=max-niter-dominators-walk.
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* params.opt: Added --param=max-niter-dominators-walk.
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* tree-ssa-loop-niter.cc (MAX_DOMINATORS_TO_WALK): Removed.
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(determine_value_range): Updated.
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(bound_difference): Updated.
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(simplify_using_initial_conditions): Updated.
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2026-04-30 Richard Biener <rguenther@suse.de>
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PR tree-optimization/120398
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PR tree-optimization/123603
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* config/i386/i386.opt (ix86-vect-compare-costs): Default to 1.
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2026-04-30 Richard Biener <rguenther@suse.de>
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* config/i386/i386.cc (ix86_vector_costs::better_epilogue_loop_than_p):
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New. If the other loop suggests this as epilog prefer other.
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2026-04-30 Richard Biener <rguenther@suse.de>
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* tree-vectorizer.h (vector_costs::vinfo): New accessor.
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* config/i386/i386.cc (ix86_vector_costs::better_main_loop_than_p):
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Prefer a masked main loop if we can elide enough of (vector)
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epilog loop iterations.
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2026-04-29 Pengxuan Zheng <pengxuan.zheng@oss.qualcomm.com>
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PR tree-optimization/113379

‎gcc/DATESTAMP‎

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20260430
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20260501

‎gcc/ada/ChangeLog‎

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2026-04-30 Eric Botcazou <ebotcazou@adacore.com>
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PR ada/110336
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* gcc-interface/Makefile.in (COVERAGE_FLAGS): New variable
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(GCC_LINK_FLAGS): Add $(COVERAGE_FLAGS).
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(ALL_CFLAGS): Likewise.
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(enable_host_pie): Fold into single use.
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2026-04-30 Eric Botcazou <ebotcazou@adacore.com>
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PR ada/125044
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* sem_disp.adb (Check_Controlling_Formals): Apply the same massaging
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to the result subtype as to the parameter subtypes.
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2026-04-22 Eric Botcazou <ebotcazou@adacore.com>
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PR ada/85766

‎gcc/testsuite/ChangeLog‎

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2026-04-30 Eric Botcazou <ebotcazou@adacore.com>
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* gnat.dg/task6.ads, gnat.dg/task6.adb: New test.
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2026-04-30 H.J. Lu <hjl.tools@gmail.com>
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PR target/125026
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PR target/125032
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* gcc.target/i386/pr125026.c: New test.
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* gcc.target/i386/pr125032-1.c: Likewise.
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* gcc.target/i386/pr125032-2.c: Likewise.
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2026-04-30 Richard Biener <rguenther@suse.de>
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PR tree-optimization/120398
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PR tree-optimization/123603
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* gcc.dg/vect/costmodel/x86_64/costmodel-pr120398.c: New testcase.
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* gcc.dg/vect/costmodel/x86_64/costmodel-pr123603.c: Adjust.
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* gcc.target/i386/vect-alignment-peeling-1.c: Likewise.
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* gcc.target/i386/vect-alignment-peeling-2.c: Likewise.
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* gcc.target/i386/vect-epilogues-10.c: Add -fno-vect-cost-model.
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2026-04-30 Richard Biener <rguenther@suse.de>
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* gcc.target/i386/shift-gf2p8affine-1.c: Disable epilogue
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vectorization.
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* gcc.target/i386/shift-gf2p8affine-3.c: Likewise.
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* gcc.target/i386/shift-gf2p8affine-7.c: Likewise.
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2026-04-30 Richard Biener <rguenther@suse.de>
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* gcc.target/i386/vect-epilogues-2.c: Add
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--param ix86-vect-compare-costs=0.
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* gcc.target/i386/vect-epilogues-2b.c: Duplicate from
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gcc.target/i386/vect-epilogues-2.c, add
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--param ix86-vect-compare-costs=1 and adjust expected
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vectorization.
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* gcc.target/i386/vect-pr113078.c: Likewise.
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* gcc.target/i386/vect-pr113078b.c: Likewise.
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2026-04-30 Richard Biener <rguenther@suse.de>
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* gcc.target/i386/vect-strided-1.c: Disable vector cost
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comparison.
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* gcc.target/i386/vect-strided-2.c: Likewise.
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* gcc.target/i386/vect-strided-3.c: Likewise.
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* gcc.target/i386/vect-strided-4.c: Likewise.
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* gcc.target/i386/vect-strided-1b.c: Copy of
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gcc.target/i386/vect-strided-1.c, enable vector cost comparison
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and adjust expected code generation.
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* gcc.target/i386/vect-strided-2b.c: Likewise.
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* gcc.target/i386/vect-strided-3b.c: Likewise.
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* gcc.target/i386/vect-strided-4b.c: Likewise.
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2026-04-29 Pengxuan Zheng <pengxuan.zheng@oss.qualcomm.com>
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PR tree-optimization/113379

‎libstdc++-v3/ChangeLog‎

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2026-04-30 Felix Morgner <felix.morgner@gmail.com>
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PR libstdc++/125112
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* include/Makefile.am: Move bits/binders.h from bits_headers to
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bits_freestanding.
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* include/Makefile.in:
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2026-04-30 Tomasz Kamiński <tkaminsk@redhat.com>
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* testsuite/26_numerics/random/uniform_real_distribution/operators/gencanon.cc:
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Updated tests.
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2026-04-29 Tomasz Kamiński <tkaminsk@redhat.com>
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* testsuite/29_atomics/headers/stdatomic.h/macros.cc:

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