[gcc r16-9077] Daily bump.
GCC Administrator
gccadmin@gcc.gnu.org
Tue Jun 9 08:58:19 GMT 2026
https://gcc.gnu.org/g:59d647197afc4c0a500cbef0eb78542f87210534
commit r16-9077-g59d647197afc4c0a500cbef0eb78542f87210534
Author: GCC Administrator <gccadmin@gcc.gnu.org>
Date: Tue Jun 9 08:57:48 2026 +0000
Daily bump.
Diff:
---
gcc/ChangeLog | 616 ++++++++++++++++++++++++++++++++++++++++++++++++
gcc/DATESTAMP | 2 +-
gcc/ada/ChangeLog | 56 +++++
gcc/cp/ChangeLog | 44 ++++
gcc/fortran/ChangeLog | 21 ++
gcc/testsuite/ChangeLog | 64 +++++
libstdc++-v3/ChangeLog | 90 +++++++
7 files changed, 892 insertions(+), 1 deletion(-)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 7fce418f9598..e81d9f5884a7 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,619 @@
+2026-06-09 Xi Ruoyao <xry111@xry111.site>
+
+ Backported from master:
+ 2026-06-08 Xi Ruoyao <xry111@xry111.site>
+
+ * config/mips/sync.md (sync_old_<optab><mode>): Fix
+ uninitialized operand use.
+ (sync_new_<optab><mode>): Fix uninitialized operand use, use the
+ same expression for the set source of operand 0 and 1.
+
+2026-06-09 Kewen Lin <linkewen@hygon.cn>
+
+ Backported from master:
+ 2026-05-28 Kewen Lin <linkewen@hygon.cn>
+ Xin Liu <liulxx@hygon.cn>
+
+ * config/i386/c86-4g-m7.md (c86_4g_m7_fpu): Remove automaton.
+ (c86_4g_m7_fpu02): New automaton.
+ (c86_4g_m7_fpu13): Ditto.
+ (c86-4g-m7-fpu0): Move to c86_4g_m7_fpu02 automaton.
+ (c86-4g-m7-fpu1): Move to c86_4g_m7_fpu13 automaton.
+ (c86-4g-m7-fpu2): Move to c86_4g_m7_fpu02 automaton.
+ (c86-4g-m7-fpu3): Move to c86_4g_m7_fpu13 automaton.
+ (c86-4g-m7-fdiv): Remove cpu unit.
+ (c86-4g-m7-fdiv1): New cpu unit.
+ (c86-4g-m7-fdiv3): Ditto.
+ (c86-4g-m7-fpu_0_3): New reservation.
+ (c86-4g-m7-fpu_1_3x2): Ditto.
+ (c86-4g-m7-fpu_1_3x3): Ditto.
+ (c86-4g-m7-fpu_1_3x6): Ditto.
+ (c86-4g-m7-fpux2): Ditto.
+ (c86-4g-m7-fpux4): Ditto.
+ (c86-4g-m7-fpux6): Ditto.
+ (c86-4g-m7-fpux8): Ditto.
+ (c86-4g-m7-fpux16): Ditto.
+ (c86-4g-m7-fp1fdiv1x4): Ditto.
+ (c86-4g-m7-fp3fdiv3x4): Ditto.
+ (c86-4g-m7-fdiv13): Ditto.
+ (c86-4g-m7-fp13div13): Ditto.
+ (c86-4g-m7-fp13div13x4): Ditto.
+ (c86-4g-m7-fp1div1_fp3div3_x4x8): Ditto.
+ (c86-4g-m7-fp1div1_fp3div3_x4x9): Ditto.
+ (c86-4g-m7-fp1div1_fp3div3_x4x11): Ditto.
+ (c86-4g-m7-fp1div1_fp3div3_x4x15): Ditto.
+ (c86-4g-m7-fp1div1_fp3div3_x4x18): Ditto.
+ (c86_4g_m7_idiv): New reservation.
+ (c86_4g_m7_idiv_QI): Adjust reservation latency and unit occupancy.
+ (c86_4g_m7_idiv_load): New reservation.
+ (c86_4g_m7_idiv_QI_load): Adjust reservation latency and unit
+ occupancy.
+ (c86_4g_m7_idiv_DI): Remove reservation.
+ (c86_4g_m7_idiv_SI): Ditto.
+ (c86_4g_m7_idiv_HI): Ditto.
+ (c86_4g_m7_idiv_DI_load): Ditto.
+ (c86_4g_m7_idiv_SI_load): Ditto.
+ (c86_4g_m7_idiv_HI_load): Ditto.
+ (c86_4g_m7_sse_insertimm): Adjust reservation units and unit
+ occupancy.
+ (c86_4g_m7_sse_insert): Ditto.
+ (c86_4g_m7_fp_sqrt): Adjust reservation.
+ (c86_4g_m7_fp_div): Ditto.
+ (c86_4g_m7_fp_div_load): Ditto.
+ (c86_4g_m7_fp_idiv_load): Ditto.
+ (c86_4g_m7_sse_pinsr_reg): Adjust reservation units and unit
+ occupancy.
+ (c86_4g_m7_sse_pinsr_reg_load): Ditto.
+ (c86_4g_m7_avx_vpinsr_reg): Ditto.
+ (c86_4g_m7_avx_vpinsr_reg_load): Ditto.
+ (c86_4g_m7_avx512_perm_xmm): Delete the prefix condition.
+ (c86_4g_m7_avx512_perm_xmm_opload): Ditto.
+ (c86_4g_m7_avx512_permi2_ymm): Adjust reservation units and unit
+ occupancy.
+ (c86_4g_m7_avx512_permi2_zmm): Ditto.
+ (c86_4g_m7_avx512_permi2_ymm_load): Ditto.
+ (c86_4g_m7_avx512_permi2_zmm_load): Ditto.
+ (c86_4g_m7_avx512_perm_zmm_imm): Ditto.
+ (c86_4g_m7_avx512_perm_zmm_imm_load): Ditto.
+ (c86_4g_m7_avx512_perm_zmm_noimm): Ditto.
+ (c86_4g_m7_sse_perm_zmm_noimm_load): Ditto.
+ (c86_4g_m7_avx_perm_ymm): Remove.
+ (c86_4g_m7_avx_perm_ymem): Ditto.
+ (c86_4g_m7_avx512_shuf_zmm): Adjust reservation units and unit
+ occupancy.
+ (c86_4g_m7_avx512_shuf_zmem): Ditto.
+ (c86_4g_m7_avx512_cmpestr): Ditto.
+ (c86_4g_m7_avx512_cmpestr_load): Ditto.
+ (c86_4g_m7_avx512_vdbpsadbw_zmm): Ditto.
+ (c86_4g_m7_avx512_vdbpsadbw_zmem): Ditto.
+ (c86_4g_m7_avx_ssecomi_comi): Ditto.
+ (c86_4g_m7_avx_ssecomi_comi_load): Ditto.
+ (c86_4g_m7_avx512_expand): Ditto.
+ (c86_4g_m7_avx512_expand_load): Ditto.
+ (c86_4g_m7_avx512_expand_z): Ditto.
+ (c86_4g_m7_avx512_expand_z_load): Ditto.
+ (c86_4g_m7_sse_movnt_xy): Rename to c86_4g_m7_sse_movnt.
+ (c86_4g_m7_avx512_sseadd_xy): Adjust reservation units.
+ (c86_4g_m7_avx512_sseadd_xy_load): Ditto.
+ (c86_4g_m7_sse_sseiadd_hplus): Adjust reservation units and unit
+ occupancy.
+ (c86_4g_m7_sse_sseiadd_hplus_load): Ditto.
+ (c86_4g_m7_avx512_ssemul): Adjust reservation units.
+ (c86_4g_m7_avx512_ssemul_load): Ditto.
+ (c86_4g_m7_avx512_ssediv): Remove.
+ (c86_4g_m7_avx512_ssediv_mem): Remove.
+ (c86_4g_m7_avx512_ssediv_x): New.
+ (c86_4g_m7_avx512_ssediv_xmem): New.
+ (c86_4g_m7_avx512_ssediv_y): New.
+ (c86_4g_m7_avx512_ssediv_ymem): New.
+ (c86_4g_m7_avx512_ssediv_z): Adjust reservation units.
+ (c86_4g_m7_avx512_ssediv_zmem): Ditto.
+ (c86_4g_m7_avx512_ssecmp_z): Add reservation units and unit
+ occupancy.
+ (c86_4g_m7_avx512_ssecmp_z_load): Ditto.
+ (c86_4g_m7_avx512_ssecmp_vp_z): New reservation.
+ (c86_4g_m7_avx512_ssecmp_vp_z_load): Ditto.
+ (c86_4g_m7_avx512_ssecmp_test_z): Remove reservation.
+ (c86_4g_m7_avx512_ssecmp_test_z_load): Ditto.
+ (c86_4g_m7_avx512_muladd): Broaden matching condition.
+ (c86_4g_m7_avx512_muladd_load): Ditto.
+ (c86_4g_m7_fma_muladd): Remove reservation.
+ (c86_4g_m7_fma_muladd_load): Ditto.
+ (c86_4g_m7_avx512_sse_conflict_x): Add reservation units and unit
+ occupancy.
+ (c86_4g_m7_avx512_sse_conflict_x_load): Ditto.
+ (c86_4g_m7_avx512_sse_conflict_y): Ditto.
+ (c86_4g_m7_avx512_sse_conflict_y_load): Ditto.
+ (c86_4g_m7_avx512_sse_conflict_z): Ditto.
+ (c86_4g_m7_avx512_sse_conflict_z_load): Ditto.
+ (c86_4g_m7_avx512_sse_class_z): Add reservation units and unit
+ occupancy.
+ (c86_4g_m7_avx512_sse_class_z_load): Ditto.
+ (c86_4g_m7_avx512_sse_sqrt): Remove.
+ (c86_4g_m7_avx512_sse_sqrt_load): Remove.
+ (c86_4g_m7_avx512_sse_sqrt_sf_x): New.
+ (c86_4g_m7_avx512_sse_sqrt_sf_xload): New.
+ (c86_4g_m7_avx512_sse_sqrt_sf_y): New.
+ (c86_4g_m7_avx512_sse_sqrt_sf_yload): New.
+ (c86_4g_m7_avx512_sse_sqrt_sf_z): New.
+ (c86_4g_m7_avx512_sse_sqrt_sf_zload): New.
+ (c86_4g_m7_avx512_sse_sqrt_df_x): New.
+ (c86_4g_m7_avx512_sse_sqrt_df_xload): New.
+ (c86_4g_m7_avx512_sse_sqrt_df_y): New.
+ (c86_4g_m7_avx512_sse_sqrt_df_yload): New.
+ (c86_4g_m7_avx512_sse_sqrt_df_z): New.
+ (c86_4g_m7_avx512_sse_sqrt_df_zload): New.
+ (c86_4g_m7_avx512_msklog_vector): Add reservation units and unit
+ occupancy.
+ (c86_4g_m7_avx512_mskmov_z_k): Ditto.
+ (c86_4g_m7_avx512_mskmov_k_reg): Ditto.
+ * config/i386/c86-4g.md (c86_4g_fp): Remove automaton.
+ (c86_4g_fp024): New automaton.
+ (c86_4g_fp1): Ditto.
+ (c86-4g-fp0): Move to c86_4g_fp024 automaton.
+ (c86-4g-fp1): Move to c86_4g_fp1 automaton.
+ (c86-4g-fp2): Move to c86_4g_fp024 automaton.
+ (c86-4g-fp3): Ditto.
+ (c86-4g-fp1fdivx4): New reservation.
+ (c86_4g_fp_sqrt): Adjust reservation.
+ (c86_4g_sse_sqrt_sf): Ditto.
+ (c86_4g_sse_sqrt_sf_mem): Ditto.
+ (c86_4g_sse_sqrt_df): Ditto.
+ (c86_4g_sse_sqrt_df_mem): Ditto.
+ (c86_4g_fp_op_div): Ditto.
+ (c86_4g_fp_op_div_load): Ditto.
+ (c86_4g_fp_op_idiv_load): Adjust reservation latency.
+ (c86_4g_ssediv_ss_ps): Adjust reservation.
+ (c86_4g_ssediv_ss_ps_load): Ditto.
+ (c86_4g_ssediv_sd_pd): Ditto.
+ (c86_4g_ssediv_sd_pd_load): Ditto.
+ (c86_4g_ssediv_avx256_ps): Ditto.
+ (c86_4g_ssediv_avx256_ps_load): Ditto.
+ (c86_4g_ssediv_avx256_pd): Ditto.
+ (c86_4g_ssediv_avx256_pd_load): Ditto.
+
+2026-06-09 Kewen Lin <linkewen@hygon.cn>
+
+ Backported from master:
+ 2026-05-01 Kewen Lin <linkewen@hygon.cn>
+
+ * config/i386/c86-4g-m7.md (c86_4g_m7_idiv): New automaton.
+ (c86_4g_m7_fdiv): Ditto.
+ (c86-4g-m7-idiv): New unit.
+ (c86-4g-m7-fdiv): Ditto.
+ (c86_4g_m7_idiv_DI): Adjust unit in the reservation.
+ (c86_4g_m7_idiv_SI): Ditto.
+ (c86_4g_m7_idiv_HI): Ditto.
+ (c86_4g_m7_idiv_QI): Ditto.
+ (c86_4g_m7_idiv_DI_load): Ditto.
+ (c86_4g_m7_idiv_SI_load): Ditto.
+ (c86_4g_m7_idiv_HI_load): Ditto.
+ (c86_4g_m7_idiv_QI_load): Ditto.
+ (c86_4g_m7_fp_div): Ditto.
+ (c86_4g_m7_fp_div_load): Ditto.
+ (c86_4g_m7_fp_idiv_load): Ditto.
+ (c86_4g_m7_avx512_ssediv): Ditto.
+ (c86_4g_m7_avx512_ssediv_mem): Ditto.
+ (c86_4g_m7_avx512_ssediv_z): Ditto.
+ (c86_4g_m7_avx512_ssediv_zmem): Ditto.
+ (c86_4g_m7_avx512_sse_sqrt): Ditto.
+ (c86_4g_m7_avx512_sse_sqrt_load): Ditto.
+ (c86_4g_m7_fp_sqrt): Ditto. Rename from ...
+ (c86_4g_m7fp_sqrt): ... here.
+ * config/i386/c86-4g.md (c86_4g_idiv): New automaton.
+ (c86_4g_fdiv): Ditto.
+ (c86-4g-idiv): New unit.
+ (c86-4g-fdiv): Ditto.
+ (c86_4g_idiv_DI): Ditto.
+ (c86_4g_idiv_SI): Ditto.
+ (c86_4g_idiv_HI): Ditto.
+ (c86_4g_idiv_QI): Ditto.
+ (c86_4g_idiv_mem_DI): Ditto.
+ (c86_4g_idiv_mem_SI): Ditto.
+ (c86_4g_idiv_mem_HI): Ditto.
+ (c86_4g_idiv_mem_QI): Ditto.
+ (c86_4g_fp_sqrt): Ditto.
+ (c86_4g_sse_sqrt_sf): Ditto.
+ (c86_4g_sse_sqrt_sf_mem): Ditto.
+ (c86_4g_sse_sqrt_df): Ditto.
+ (c86_4g_sse_sqrt_df_mem): Ditto.
+ (c86_4g_fp_op_div): Ditto.
+ (c86_4g_fp_op_div_load): Ditto.
+ (c86_4g_fp_op_idiv_load): Ditto.
+ (c86_4g_ssediv_ss_ps): Ditto.
+ (c86_4g_ssediv_ss_ps_load): Ditto.
+ (c86_4g_ssediv_ss_pd): Ditto.
+ (c86_4g_ssediv_ss_pd_load): Ditto.
+ (c86_4g_ssediv_avx256_ps): Ditto.
+ (c86_4g_ssediv_avx256_ps_load): Ditto.
+ (c86_4g_ssediv_avx256_pd): Ditto.
+ (c86_4g_ssediv_avx256_pd_load): Ditto.
+
+2026-06-09 Xin Liu <liulxx@hygon.cn>
+
+ Backported from master:
+ 2026-04-29 Xin Liu <liulxx@hygon.cn>
+ Zhaoling Bao <baozhaoling@hygon.cn>
+
+ * common/config/i386/cpuinfo.h (get_hygon_cpu): Detect the specific
+ type of HYGON CPU and return HYGON CPU name.
+ (cpu_indicator_init): Handle HYGON CPU.
+ * common/config/i386/i386-common.cc (processor_names): Add HYGON
+ C86-4G processors c86-4g-m{4,6,7}.
+ (processor_alias_table): Add hygon, hygonfam18h and c86-4g-m{4,6,7}
+ entries.
+ (ARRAY_SIZE): Update as new entries added.
+ * common/config/i386/i386-cpuinfo.h (enum processor_vendor): Add
+ VENDOR_HYGON.
+ (enum processor_types): Add HYGONFAM18H.
+ (enum processor_subtypes): Add HYGONFAM18H_C86_4G_M{4,6,7}.
+ * config.gcc: Add support for c86_4g_m{4,6,7}.
+ * config/i386/cpuid.h (signature_HYGON_ebx): Add signature for HYGON.
+ (signature_HYGON_ecx): Ditto.
+ (signature_HYGON_edx): Ditto.
+ * config/i386/driver-i386.cc (host_detect_local_cpu): Support HYGON
+ c86-4g-m4{4,6,7} processors.
+ * config/i386/i386-c.cc (ix86_target_macros_internal): Ditto.
+ * config/i386/i386-options.cc (m_C86_4G_M4): New definition.
+ (m_C86_4G_M6): Ditto.
+ (m_C86_4G_M7): Ditto.
+ (m_C86_4G): Ditto.
+ (processor_cost_table): Add cost entries for c86-4g-m4{4,6,7}.
+ * config/i386/i386.cc (ix86_reassociation_width): Add handlings for
+ PROCESSOR_C86_4G_M{4,6,7}.
+ * config/i386/i386.h (enum processor_type): Define
+ PROCESSOR_C86_4G_M{4,6,7}.
+ (PTA_C86_4G_M4): New define.
+ (PTA_C86_4G_M6): Ditto.
+ (PTA_C86_4G_M7): Ditto.
+ * config/i386/x86-tune-costs.h (c86_4g_m4_memcpy): New stringop_algs.
+ (c86_4g_m4_cost): New processor_costs.
+ (c86_4g_m6_cost): Ditto.
+ (c86_4g_m7_cost): Ditto.
+ * config/i386/x86-tune-sched.cc (ix86_issue_rate): Handle
+ PROCESSOR_C86_4G_M{4,6,7}.
+ (ix86_adjust_cost): Ditto.
+ * config/i386/x86-tune.def (X86_TUNE_SCHEDULE): Handle m_C86_4G.
+ (X86_TUNE_PARTIAL_REG_DEPENDENCY): Ditto.
+ (X86_TUNE_SSE_PARTIAL_REG_DEPENDENCY): Ditto.
+ (X86_TUNE_SSE_PARTIAL_REG_FP_CONVERTS_DEPENDENCY): Ditto.
+ (X86_TUNE_SSE_PARTIAL_REG_CONVERTS_DEPENDENCY): Ditto.
+ (X86_TUNE_MEMORY_MISMATCH_STALL): Ditto.
+ (X86_TUNE_FUSE_CMP_AND_BRANCH_32): Ditto.
+ (X86_TUNE_FUSE_CMP_AND_BRANCH_64): Ditto.
+ (X86_TUNE_FUSE_CMP_AND_BRANCH_SOFLAGS): Ditto.
+ (X86_TUNE_USE_LEAVE): Ditto.
+ (X86_TUNE_PUSH_MEMORY): Ditto.
+ (X86_TUNE_INTEGER_DFMODE_MOVES): Ditto.
+ (X86_TUNE_MISALIGNED_MOVE_STRING_PRO_EPILOGUES): Ditto.
+ (X86_TUNE_USE_SAHF): Ditto.
+ (X86_TUNE_USE_BT): Ditto.
+ (X86_TUNE_AVOID_MFENCE): Ditto.
+ (X86_TUNE_USE_FFREEP): Ditto.
+ (X86_TUNE_SSE_UNALIGNED_STORE_OPTIMAL): Ditto.
+ (X86_TUNE_SSE_PACKED_SINGLE_INSN_OPTIMAL): Ditto.
+ (X86_TUNE_SSE_TYPELESS_STORES): Ditto.
+ (X86_TUNE_SSE_LOAD0_BY_PXOR): Ditto.
+ (X86_TUNE_USE_GATHER_2PARTS): Ditto.
+ (X86_TUNE_USE_GATHER_4PARTS): Ditto.
+ (X86_TUNE_USE_GATHER_8PARTS): Ditto.
+ (X86_TUNE_AVOID_128FMA_CHAINS): Ditto.
+ (X86_TUNE_AVOID_256FMA_CHAINS): Ditto.
+ (X86_TUNE_USE_RCR): Ditto.
+ (X86_TUNE_AVX256_MOVE_BY_PIECES): Handle m_C86_4G_M{4,6}.
+ (X86_TUNE_USE_SCATTER_2PARTS): Handle m_C86_4G_M7.
+ (X86_TUNE_USE_SCATTER_4PARTS): Ditto.
+ (X86_TUNE_USE_SCATTER_8PARTS): Ditto.
+ (X86_TUNE_SSE_REDUCTION_PREFER_PSHUF): Ditto.
+ (X86_TUNE_AVX512_SPLIT_REGS): Ditto.
+ (X86_TUNE_AVX512_MOVE_BY_PIECES): Ditto.
+ (X86_TUNE_AVX512_MASKED_EPILOGUES): Ditto.
+ * doc/extend.texi: Document about hygonfam18h and c86-4g-m{4,6,7}.
+ * doc/invoke.texi: Document about c86-4g-m{4,6,7}.
+ * config/i386/c86-4g-m7.md: New file for c86-4g-m7 scheduling model
+ information.
+ * config/i386/c86-4g.md: New file for c86-4g-m{4,6} scheduling model
+ information.
+ * config/i386/i386.md (cpu attr): Add c86_4g_m{4,6,7}.
+ (c86-4g.md): New include.
+ (c86-4g-m7.md): Ditto.
+ (*cmpi<unord>xf_i387): Set attr c86_decode.
+ (*cmpi<unord><MODEF:mode>): Ditto.
+ (swap<mode>): Ditto.
+ (*swap<mode>): Ditto.
+ (extendhisi2): Ditto.
+ (floathi<mode>2): Ditto.
+ (float<SWI48x:mode>xf2): Ditto.
+ (*float<SWI48:mode><MODEF:mode>2): Ditto.
+ (*floatdi<MODEF:mode>2_i387): Ditto.
+ (*anddi_1_bt): Ditto.
+ (*iordi_1_bts): Ditto.
+ (*xordi_1_btc): Ditto.
+ (*<btsc><mode>): Ditto.
+ (*btr<mode>): Ditto.
+ (*btsq_imm): Ditto.
+ (*btrq_imm): Ditto.
+ (*btcq_imm): Ditto.
+ (*tzcnt<mode>_1): Ditto.
+ (*tzcnt<mode>_1_falsedep): Ditto.
+ (*bsf<mode>_1): Ditto.
+ (*ctz<mode>2_falsedep): Ditto.
+ (*ctzsi2_zext): Ditto.
+ (*ctzsi2_zext_falsedep): Ditto.
+ (bsr_rex64): Ditto.
+ (bsr_rex64_1): Ditto.
+ (bsr_rex64_1_zext): Ditto.
+ (bsr): Ditto.
+ (bsr_1): Ditto.
+ (bsr_zext_1): Ditto.
+ (*bswaphi2_movbe): Ditto.
+ (*bswaphi2): Ditto.
+ (bswaphisi2_lowpart): Ditto.
+ (fpremxf4_i387): Ditto.
+ (fprem1xf4_i387): Ditto.
+ (<sincos>xf2): Ditto.
+ (sincosxf3): Ditto.
+ (fptanxf4_i387): Ditto.
+ (atan2xf3): Ditto.
+ (fyl2xxf3_i387): Ditto.
+ (fyl2xp1xf3_i387): Ditto.
+ (fxtractxf3_i387): Ditto.
+ (*f2xm1xf2_i387): Ditto.
+ (fscalexf4_i387): Ditto.
+ (rintxf2): Ditto.
+ (*movxi_internal_avx512f): Set attr c86_attr.
+ (*movoi_internal_avx): Ditto.
+ (*movti_internal): Ditto.
+ (*movdi_internal): Ditto.
+ (*movsi_internal): Ditto.
+ (*movhi_internal): Ditto.
+ (*movtf_internal): Ditto.
+ (*movdf_internal): Ditto.
+ (*movsf_internal): Ditto.
+ (*zero_extendsidi2): Ditto.
+ (sqrtxf2): Ditto.
+ (<smaxmin:code><mode>3): Ditto.
+ (*ieee_s<ieee_maxmin><mode>3): Ditto.
+ * config/i386/mmx.md (*mmx_maskmovq): Set attr c86_decode.
+ (*mmx_maskmovq): Ditto.
+ (sse_movntq): Set attr c86_attr.
+ (*mmx_blendps): Ditto.
+ (mmx_blendvps): Ditto.
+ (*mmx_pmaddwd): Ditto.
+ (mmx_pblendvb_v8qi): Ditto.
+ (mmx_pblendvb_<mode>): Ditto.
+ (sse4_1_<code>v4qiv4hi2): Ditto.
+ (sse4_1_<code>v2hiv2si2): Ditto.
+ (sse4_1_<code>v2qiv2si2): Ditto.
+ (sse4_1_<code>v2qiv2hi2): Ditto.
+ (*mmx_pinsrd): Ditto.
+ (*mmx_pinsrw): Ditto.
+ (*mmx_pinsrb): Ditto.
+ (*mmx_pextrw): Ditto.
+ (*mmx_pextrw<mode>): Ditto.
+ (*mmx_pextrw_zext): Ditto.
+ (*mmx_pextrb): Ditto.
+ (*mmx_pextrb_zext): Ditto.
+ (*mmx_pblendw64): Ditto.
+ (*mmx_pblendw32): Ditto.
+ (*vec_extractv2si_1): Ditto.
+ (*vec_extractv2si_1_zext): Ditto.
+ (*pinsrw): Ditto.
+ (*pinsrb): Ditto.
+ (*pextrw): Ditto.
+ (*pextrw<mode>): Ditto.
+ (*pextrw_zext): Ditto.
+ (*pextrb): Ditto.
+ (*pextrb_zext): Ditto.
+ (*mmx_psadbw): Ditto.
+ * config/i386/sse.md (ktest<mode>): Set attr c86_decode.
+ (*kortest<mode>): Ditto.
+ (sse_cvtsi2ss<rex64namesuffix><round_name>): Ditto.
+ (sse2_cvtsi2sd): Ditto.
+ (sse2_maskmovdqu): Ditto.
+ (*<sse>_dp<ssemodesuffix><avxsizesuffix>): Ditto.
+ (*<sse4_1_avx2>_mpsadbw): Ditto.
+ (pclmulqdq): Ditto.
+ (<mask_codefor>conflict<mode><mask_name>): Ditto.
+ (<avx512>_blendm<mode>): Set attr c86_attr.
+ (sse2_movnti<mode>): Ditto.
+ (<sse>_movnt<mode>): Ditto.
+ (<sse2>_movnt<mode>): Ditto.
+ (<sse>_rcp<mode>2): Ditto.
+ (sse_vmrcpv4sf2): Ditto.
+ (<mask_codefor>rcp14<mode><mask_name>): Ditto.
+ (srcp14<mode>): Ditto.
+ (srcp14<mode>_mask): Ditto.
+ (<sse>_sqrt<mode>2<mask_name><round_name>): Ditto.
+ (<sse>_vmsqrt<mode>2<mask_scalar_name><round_scalar_name>): Ditto.
+ (*<sse>_vmsqrt<mode>2<mask_scalar_name><round_scalar_name>): Ditto.
+ (<mask_codefor>rsqrt14<mode><mask_name>): Ditto.
+ (rsqrt14<mode>): Ditto.
+ (rsqrt14_<mode>_mask"): Ditto.
+ (*<code><mode>3<mask_name><round_saeonly_name>): Ditto.
+ (ieee_<ieee_maxmin><mode>3<mask_name><round_saeonly_name>): Ditto.
+ (*<sse>_vm<code><mode>3<mask_scalar_name><round_saeonly_scalar_name>):
+ Ditto.
+ (<sse>_ieee_vm<ieee_maxmin><mode>3<mask_scalar_name>
+ <round_saeonly_scalar_name>): Ditto.
+ (*ieee_<ieee_maxmin><mode>3): Ditto.
+ (avx_h<insn>v4df3): Ditto.
+ (*sse3_haddv2df3): Ditto.
+ (sse3_hsubv2df3): Ditto.
+ (*sse3_haddv2df3_low): Ditto.
+ (*sse3_hsubv2df3_low): Ditto.
+ (avx_h<insn>v8sf3): Ditto.
+ (sse3_h<insn>v4sf3): Ditto.
+ (*<mask_codefor>reducep<mode><mask_name><round_saeonly_name>): Ditto.
+ (reduces<mode><mask_scalar_name><round_saeonly_scalar_name>): Ditto.
+ (*<avx512>_eq<mode>3<mask_scalar_merge_name>_1): Ditto.
+ (<sse>_andnot<mode>3<mask_name>): Ditto.
+ (*<code><mode>3<mask_name>): Ditto.
+ (*andnot<mode>3): Ditto.
+ (<code><mode>3): Ditto.
+ (*<code>tf3): Ditto.
+ (vec_set<mode>_0): Ditto.
+ (@vec_set<mode>_0): Ditto.
+ (*sse4_1_extractps): Ditto.
+ (vec_extract<mode>): Ditto.
+ (<mask_codefor><avx512>_align<mode><mask_name>): Ditto.
+ (avx512bw_pmaddwd512<mode><mask_name>): Ditto.
+ (*avx2_pmaddw): Ditto.
+ (*sse2_pmaddwd): Ditto.
+ (*avx2_<code><mode>3): Ditto.
+ (*avx512f_<code><mode>3<mask_name>): Ditto.
+ (*avx512bw_<code><mode>3<mask_name>): Ditto.
+ (*sse4_1_<code><mode>3<mask_name>): Ditto.
+ (*<code>v8hi3): Ditto.
+ (*<code>v16qi3): Ditto.
+ (*andnot<mode>3_mask): Ditto.
+ (*<code><mode>3): Ditto.
+ (<code>v1ti3): Ditto.
+ (<sse2p4_1>_pinsr<ssemodesuffix>): Ditto.
+ (*<extract_type>_vinsert<shuffletype><extract_suf>_0): Ditto.
+ (<mask_codefor><extract_type>_vinsert<shuffletype><extract_suf>
+ _1<mask_name>): Ditto.
+ (vec_set_lo_<mode><mask_name>): Ditto.
+ (vec_set_hi_<mode><mask_name>): Ditto.
+ (<mask_codefor>avx512dq_shuf_<shuffletype>64x2_1<mask_name>): Ditto.
+ (avx512f_shuf_<shuffletype>64x2_1<mask_name>): Ditto.
+ (*avx512f_shuf_<shuffletype>64x2_1<mask_name>_1): Ditto.
+ (avx512vl_shuf_<shuffletype>32x4_1<mask_name>): Ditto.
+ (avx512f_shuf_<shuffletype>32x4_1<mask_name>): Ditto.
+ (*avx512f_shuf_<shuffletype>32x4_1<mask_name>_1): Ditto.
+ (*vec_extract<mode>): Ditto.
+ (*vec_extract<PEXTR_MODE12:mode>_zext): Ditto.
+ (*vec_extractv16qi_zext): Ditto.
+ (*vec_extractv4si): Ditto.
+ (*vec_extractv4si_zext): Ditto.
+ (*vec_extractv2di_1): Ditto.
+ (*vec_concatv2si_sse4_1): Ditto.
+ (vec_concatv2di): Ditto.
+ (*<sse2_avx2>_uavg<mode>3<mask_name>): Ditto.
+ (*<sse2_avx2>_psadbw): Ditto.
+ (<sse>_movmsk<ssemodesuffix><avxsizesuffix>): Ditto.
+ (*<sse>_movmsk<ssemodesuffix><avxsizesuffix>_<u>ext): Ditto.
+ (<sse2_avx2>_pmovmskb): Ditto.
+ (*<sse2_avx2>_pmovmskb_zext): Ditto.
+ (*sse2_maskmovdqu): Ditto.
+ (avx2_ph<plusminus_mnemonic>wv16hi3): Ditto.
+ (ssse3_ph<plusminus_mnemonic>wv8hi3): Ditto.
+ (ssse3_ph<plusminus_mnemonic>dv4si3): Ditto.
+ (avx2_ph<plusminus_mnemonic>dv8si3): Ditto.
+ (avx2_pmaddubsw256): Ditto.
+ (avx512bw_pmaddubsw512<mode><mask_name>): Ditto.
+ (ssse3_pmaddubsw128): Ditto.
+ (<ssse3_avx2>_psign<mode>3): Ditto.
+ (ssse3_psign<mode>3): Ditto.
+ (*abs<mode>2): Ditto.
+ (abs<mode>2_mask): Ditto.
+ (abs<mode>2_mask): Ditto.
+ (sse4a_movnt<mode>): Ditto.
+ (sse4a_vmmovnt<mode>): Ditto.
+ (<sse4_1>_blend<ssemodesuffix><avxsizesuffix>): Ditto.
+ (<sse4_1>_blendv<ssemodesuffix><avxsizesuffix>): Ditto.
+ (sse4_1_blendv<ssemodesuffix>): Ditto.
+ (<vi8_sse4_1_avx2_avx512>_movntdqa): Ditto.
+ (<sse4_1_avx2>_pblendvb): Ditto.
+ (sse4_1_pblend<ssemodesuffix>): Ditto.
+ (*avx2_pblend<ssemodesuffix>): Ditto.
+ (avx2_pblendd<mode>): Ditto.
+ (avx2_<code>v16qiv16hi2<mask_name>): Ditto.
+ (avx512bw_<code>v32qiv32hi2<mask_name>): Ditto.
+ (sse4_1_<code>v8qiv8hi2<mask_name>): Ditto.
+ (*sse4_1_<code>v8qiv8hi2<mask_name>_1): Ditto.
+ (<mask_codefor>avx512f_<code>v16qiv16si2<mask_name>): Ditto.
+ (avx2_<code>v8qiv8si2<mask_name>): Ditto.
+ (*avx2_<code>v8qiv8si2<mask_name>_1): Ditto.
+ (sse4_1_<code>v4qiv4si2<mask_name>): Ditto.
+ (*sse4_1_<code>v4qiv4si2<mask_name>_1): Ditto.
+ (avx512f_<code>v16hiv16si2<mask_name>): Ditto.
+ (avx2_<code>v8hiv8si2<mask_name>): Ditto.
+ (sse4_1_<code>v4hiv4si2<mask_name>): Ditto.
+ (*sse4_1_<code>v4hiv4si2<mask_name>_1): Ditto.
+ (avx512f_<code>v8qiv8di2<mask_name>): Ditto.
+ (*avx512f_<code>v8qiv8di2<mask_name>_1): Ditto.
+ (avx2_<code>v4qiv4di2<mask_name>): Ditto.
+ (*avx2_<code>v4qiv4di2<mask_name>_1): Ditto.
+ (sse4_1_<code>v2qiv2di2<mask_name>): Ditto.
+ (*sse4_1_<code>v2qiv2di2<mask_name>_1): Ditto.
+ (avx512f_<code>v8hiv8di2<mask_name>): Ditto.
+ (avx2_<code>v4hiv4di2<mask_name>): Ditto.
+ (*avx2_<code>v4hiv4di2<mask_name>_1): Ditto.
+ (sse4_1_<code>v2hiv2di2<mask_name>): Ditto.
+ (*sse4_1_<code>v2hiv2di2<mask_name>_1): Ditto.
+ (avx512f_<code>v8siv8di2<mask_name>): Ditto.
+ (avx2_<code>v4siv4di2<mask_name>): Ditto.
+ (sse4_1_<code>v2siv2di2<mask_name>): Ditto.
+ (*sse4_1_<code>v2siv2di2<mask_name>_1): Ditto.
+ (sse4_1_round<ssescalarmodesuffix>): Ditto.
+ (*sse4_1_round<ssescalarmodesuffix>"): Ditto.
+ (sse4_2_pcmpestri): Ditto.
+ (sse4_2_pcmpestrm): Ditto.
+ (sse4_2_pcmpestr_cconly): Ditto.
+ (sse4_2_pcmpistri): Ditto.
+ (sse4_2_pcmpistrm): Ditto.
+ (sse4_2_pcmpistr_cconly): Ditto.
+ (xop_phadd<u>bw): Ditto.
+ (xop_phadd<u>bd): Ditto.
+ (xop_phadd<u>bq): Ditto.
+ (xop_phadd<u>wd): Ditto.
+ (xop_phadd<u>wq): Ditto.
+ (xop_phadd<u>dq): Ditto.
+ (xop_phsubbw): Ditto.
+ (xop_phsubwd): Ditto.
+ (xop_phsubdq): Ditto.
+ (aesenc): Ditto.
+ (aesenclast): Ditto.
+ (aesdec): Ditto.
+ (aesdeclast): Ditto.
+ (aesimc): Ditto.
+ (aeskeygenassist): Ditto.
+ (<avx2_avx512>_permvar<mode><mask_name>): Ditto.
+ (avx2_perm<mode>_1<mask_name>): Ditto.
+ (<avx512>_permvar<mode><mask_name>): Ditto.
+ (avx512f_perm<mode>_1<mask_name>): Ditto.
+ (<mask_codefor>avx512f_broadcast<mode><mask_name>): Ditto.
+ (avx_vbroadcastf128_<mode>): Ditto.
+ (<mask_codefor>avx512vl_broadcast<mode><mask_name>_1): Ditto.
+ (<mask_codefor>avx512dq_broadcast<mode><mask_name>_1): Ditto.
+ (*<avx512>_vpermi2var<mode>3_mask): Ditto.
+ (<avx512>_vpermt2var<mode>3<sd_maskz_name>): Ditto.
+ (<avx512>_vpermt2var<mode>3_mask): Ditto.
+ (*avx_vperm2f128<mode>_nozero): Ditto.
+ (vec_set_lo_<mode><mask_name>): Ditto.
+ (vec_set_hi_<mode><mask_name>): Ditto.
+ (vec_set_lo_<mode>): Ditto.
+ (vec_set_hi_<mode>): Ditto.
+ (vec_set_lo_v32qi): Ditto.
+ (<avx_avx2>_maskload<ssemodesuffix><avxsizesuffix>): Ditto.
+ (<avx_avx2>_maskstore<ssemodesuffix><avxsizesuffix>): Ditto.
+ (avx_vec_concat<mode>): Ditto.
+ (<avx512>_compress<mode>_mask): Ditto.
+ (compress<mode>_mask): Ditto.
+ (<avx512>_compressstore<mode>_mask): Ditto.
+ (compressstore<mode>_mask): Ditto.
+ (expand<mode>_mask): Ditto.
+ (<mask_codefor>avx512bw_dbpsadbw<mode><mask_name>): Ditto.
+ (clz<mode>2<mask_name>): Ditto.
+ (vpmadd52<vpmadd52type>v8di): Ditto.
+ (vpmadd52<vpmadd52type><mode>): Ditto.
+ (vpmadd52<vpmadd52type><mode>_maskz_1): Ditto.
+ (vpmadd52<vpmadd52type><mode>_mask): Ditto.
+ (vaesdec_<mode>): Ditto.
+ (vaesdeclast_<mode>): Ditto.
+ (vaesenc_<mode>): Ditto.
+ (vaesenclast_<mode>): Ditto.
+
+2026-06-06 Jakub Jelinek <jakub@redhat.com>
+
+ Backported from master:
+ 2026-06-06 Jakub Jelinek <jakub@redhat.com>
+
+ PR target/125611
+ * config/i386/sse.md (<ssse3_avx2>_pmulhrsw<mode>3, smulhrs<mode>3):
+ Use vector_operand instead of nonimmediate_operand.
+
2026-06-03 Richard Sandiford <rdsandiford@googlemail.com>
PR rtl-optimization/125375
diff --git a/gcc/DATESTAMP b/gcc/DATESTAMP
index cf4a41146e2d..eed21ff12b80 100644
--- a/gcc/DATESTAMP
+++ b/gcc/DATESTAMP
@@ -1 +1 @@
-20260604
+20260609
diff --git a/gcc/ada/ChangeLog b/gcc/ada/ChangeLog
index 3238167626dc..7fbd6096375a 100644
--- a/gcc/ada/ChangeLog
+++ b/gcc/ada/ChangeLog
@@ -1,3 +1,59 @@
+2026-06-06 Eric Botcazou <ebotcazou@adacore.com>
+
+ * sem_ch3.adb (Analyze_Private_Extension_Declaration): Revert latest
+ change.
+ (Find_Type_Of_Subtype_Indic): Return Any_Type if Find_Type fails to
+ resolve the type.
+ * sem_ch12.adb (Analyze_Formal_Derived_Type): Restore more specific
+ error recovery path.
+
+2026-06-06 Ronan Desplanques <desplanques@adacore.com>
+
+ * exp_ch6.adb (Needs_BIP_Collection): Fix condition.
+
+2026-06-06 Mathias Aparicio <aparicio@adacore.com>
+
+ * libgnat/a-textio.adb
+ (Get_Upper_Half_Char, Get_Upper_Half_Char_Immed): Replace
+ Constraint_Error with Data_Error
+
+2026-06-06 Viljar Indus <indus@adacore.com>
+
+ * sem_warn.adb (Warn_On_Suspicious_Index): Only check elements
+ that are coming from source.
+
+2026-06-06 Eric Botcazou <ebotcazou@adacore.com>
+
+ * sem_ch3.adb (Analyze_Private_Extension_Declaration): Be prepared
+ for Find_Type_Of_Subtype_Indic returning no type.
+ * sem_ch4.adb (Process_Generic_Instantiation): Give an error if the
+ generic instantation is referenced in a generic formal part.
+ * sem_ch12.adb (Analyze_Formal_Derived_Type): Return early in every
+ case of serious errors.
+
+2026-06-04 Artur Pietrek <pietrek@adacore.com>
+
+ * exp_ch7.adb (Make_Address_For_Finalize): check
+ Has_Controlled_Component predicate before emitting the shift to be
+ consistant with what Is_Constr_Array_Subt_With_Bounds says.
+
+2026-06-04 Eric Botcazou <ebotcazou@adacore.com>
+
+ * exp_ch4.adb (Expand_Allocator_Expression): In the case of access
+ discriminants, pass Zero_On_Dynamic_Level to compute the static
+ accessibility level of the expression.
+ * sem_res.adb (Check_Aliased_Parameter): Pass Zero_On_Dynamic_Level
+ to compute the static accessibility level of actual parameters.
+
+2026-06-04 Piotr Trojanek <trojanek@adacore.com>
+
+ * sem_ch9.adb (Analyze_Requeue): Fix unbalanced parens.
+
+2026-06-04 Eric Botcazou <ebotcazou@adacore.com>
+
+ * sem_util.ads (In_Reverse_Storage_Order_Object): Adjust.
+ * sem_util.adb (In_Reverse_Storage_Order_Object): Rewrite.
+
2026-06-02 Eric Botcazou <ebotcazou@adacore.com>
* gcc-interface/decl.cc (gnat_to_gnu_entity) <E_Variable>: Validate
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 72507cc26e89..39ca5ff7ea8c 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,47 @@
+2026-06-05 Patrick Palka <ppalka@redhat.com>
+
+ Backported from master:
+ 2026-06-05 Patrick Palka <ppalka@redhat.com>
+
+ PR c++/125334
+ * module.cc (depset::hash::add_dependent_adl_entities):
+ Disable when inside a header unit.
+
+2026-06-05 Patrick Palka <ppalka@redhat.com>
+
+ Backported from master:
+ 2026-06-05 Patrick Palka <ppalka@redhat.com>
+
+ * module.cc (dep_adl_info::args): Initializer to nullptr
+ instead of immediately allocating.
+ (depset::hash::add_dependent_adl_entities): Exit early
+ for non-type-dependent calls and operator expressions.
+ Only allocate dep_adl_info::args if we're not exiting early.
+ Correct all-type-dependent args test.
+ * name-lookup.cc (name_lookup::preserve_state): Replace
+ propagation of tentative flag with assert that it's not
+ set.
+
+2026-06-04 Patrick Palka <ppalka@redhat.com>
+
+ Backported from master:
+ 2026-06-03 Patrick Palka <ppalka@redhat.com>
+
+ PR c++/125378
+ * tree.cc (build_min_non_dep_op_overload): Handle comparison
+ operator expressions rewritten from a <=> that contain an
+ integer promotion.
+
+2026-06-04 Patrick Palka <ppalka@redhat.com>
+
+ Backported from master:
+ 2026-06-03 Patrick Palka <ppalka@redhat.com>
+
+ PR c++/125490
+ * parser.cc (cp_parser_constraint_expression): Pass
+ no_toplevel_fold_p=false instead of =true to
+ cp_parser_binary_expression.
+
2026-06-01 Jakub Jelinek <jakub@redhat.com>
Backported from master:
diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index 86701b414730..b612894de54e 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,24 @@
+2026-06-09 Paul Thomas <pault@gcc.gnu.org>
+
+ Backported from master:
+ 2026-06-09 Paul Thomas <pault@gcc.gnu.org>
+
+ PR fortran/125669
+ * decl.cc (gfc_get_pdt_instance): If the bound expressions for
+ and array component, of the length expression for a character
+ component, gave simplified to a constant, do not set attributes
+ pdt_array and pdt_string respectively.
+
+2026-06-08 Harald Anlauf <anlauf@gmx.de>
+
+ Backported from master:
+ 2026-06-06 Harald Anlauf <anlauf@gmx.de>
+
+ PR fortran/125606
+ * trans-intrinsic.cc (gfc_conv_intrinsic_loc): When the argument
+ of LOC() is not scalar or known to be simply contiguous, simply
+ take the address of the argument array's first element.
+
2026-06-01 Harald Anlauf <anlauf@gmx.de>
Backported from master:
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 91a26c04d88c..36912c5a5ffb 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,67 @@
+2026-06-09 Paul Thomas <pault@gcc.gnu.org>
+
+ Backported from master:
+ 2026-06-09 Paul Thomas <pault@gcc.gnu.org>
+
+ PR fortran/125669
+ * gfortran.dg/pdt_92.f03: New test.
+
+2026-06-09 Xin Liu <liulxx@hygon.cn>
+
+ Backported from master:
+ 2026-04-29 Xin Liu <liulxx@hygon.cn>
+ Zhaoling Bao <baozhaoling@hygon.cn>
+
+ * gcc.target/i386/builtin_target.c: Add handling for HYGON CPUs by
+ validating the vendor and invoking HYGON-specific CPU detection.
+ * gcc.target/i386/funcspec-56.inc: Test function target attribute on
+ {arch,tune}=c86-4g-m{4,6,7}.
+ * g++.target/i386/mv33.C: New test.
+
+2026-06-08 Harald Anlauf <anlauf@gmx.de>
+
+ Backported from master:
+ 2026-06-06 Harald Anlauf <anlauf@gmx.de>
+
+ PR fortran/125606
+ * gfortran.dg/loc_3.f90: New test.
+
+2026-06-08 Torbjörn SVENSSON <torbjorn.svensson@foss.st.com>
+
+ Backported from master:
+ 2026-06-08 Torbjörn SVENSSON <torbjorn.svensson@foss.st.com>
+
+ * g++.dg/modules/test-p1689.py: Make arrays have predictable
+ order.
+
+2026-06-06 Jakub Jelinek <jakub@redhat.com>
+
+ Backported from master:
+ 2026-06-06 Jakub Jelinek <jakub@redhat.com>
+
+ PR target/125611
+ * gcc.target/i386/ssse3-pr125611.c: New test.
+
+2026-06-04 Patrick Palka <ppalka@redhat.com>
+
+ Backported from master:
+ 2026-06-03 Patrick Palka <ppalka@redhat.com>
+
+ PR c++/125378
+ * g++.dg/lookup/operator-8b.C: New test.
+ * g++.dg/lookup/operator-8c.C: New test.
+ * g++.dg/lookup/operator-9a.C: New test.
+ * g++.dg/lookup/operator-9b.C: New test.
+
+2026-06-04 Patrick Palka <ppalka@redhat.com>
+
+ Backported from master:
+ 2026-06-03 Patrick Palka <ppalka@redhat.com>
+
+ PR c++/125490
+ * g++.dg/cpp2a/concepts-pr125490.C: New test.
+ * g++.dg/cpp2a/concepts-pr125490a.C: New test.
+
2026-06-03 Richard Sandiford <rdsandiford@googlemail.com>
* gcc.dg/pr125375.c: New test.
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 10d64113f3e9..ff1d3ecc74d1 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,93 @@
+2026-06-04 Patrick Palka <ppalka@redhat.com>
+
+ Backported from master:
+ 2026-05-29 Patrick Palka <ppalka@redhat.com>
+
+ * include/std/flat_set (_Flat_set_impl::swap): Swap _M_cont
+ first.
+
+2026-06-04 Patrick Palka <ppalka@redhat.com>
+
+ Backported from master:
+ 2026-05-28 Patrick Palka <ppalka@redhat.com>
+
+ * include/std/flat_map (flat_map): Bring in operator= from
+ _Flat_map_base.
+ (flat_multimap): Likewise.
+ * include/std/flat_set (flat_set): Bring in operator= from
+ _Flat_set_base.
+ (flat_multiset): Likewise.
+ * testsuite/23_containers/flat_map/1.cc (test11): Simplify by
+ using = {...}.
+ (test12): New test.
+ * testsuite/23_containers/flat_multimap/1.cc (test10): Simplify
+ by using = {...}.
+ (test11): New test.
+ * testsuite/23_containers/flat_multiset/1.cc (test10): Simplify
+ by using = {...}.
+ (test11): New test.
+ * testsuite/23_containers/flat_set/1.cc (test10): Simplify by
+ using = {...}.
+ (test11): New test.
+
+2026-06-04 Patrick Palka <ppalka@redhat.com>
+
+ Backported from master:
+ 2026-05-28 Patrick Palka <ppalka@redhat.com>
+
+ * include/bits/version.def (flat_map): Bump to 202511.
+ (flat_set): Likewise.
+ * include/bits/version.h: Regenerate.
+ * include/std/flat_map (_Flat_map_impl): Remove
+ is_nothrow_swappable_v assertions.
+ (_Flat_map_impl::_Flat_map_impl): Explicitly default copy ctor.
+ Define move ctor with corrected exception handling as per
+ P3567R2.
+ (_Flat_map_impl::operator=): Likewise.
+ (_Flat_map_impl::insert_range): Define new __sorted_t overload
+ as per P3567R2.
+ (_Flat_map_impl::swap): Make conditionally noexcept as per
+ P3567R2.
+ * include/std/flat_set (_Flat_set_impl): Remove
+ is_nothrow_swappable_v assertion.
+ (_Flat_set_impl::_Flat_set_impl): Explicitly default copy ctor.
+ Define move ctor with correct invariant preserving behavior as
+ per P3567R2.
+ (_Flat_set_impl::operator=): Likewise.
+ (_Flat_set_impl::_M_insert_range): Factored out from
+ insert_range. Add bool parameter __is_sorted defaulted to
+ false.
+ (_Flat_set_impl::insert_range): Define new __sorted_t overload
+ as per P3567R2.
+ (_Flat_set_impl::swap): Make conditionally noexcept as per
+ P3567R2. Correct to use ranges::swap instead of ADL swap.
+ * testsuite/23_containers/flat_map/1.cc (test11, test12):
+ New tests.
+ * testsuite/23_containers/flat_multimap/1.cc (test10, test11):
+ New tests.
+ * testsuite/23_containers/flat_multiset/1.cc (test10, test11):
+ New tests.
+ * testsuite/23_containers/flat_set/1.cc (test10, test11):
+ New tests.
+
+2026-06-04 Patrick Palka <ppalka@redhat.com>
+
+ Backported from master:
+ 2026-05-28 Patrick Palka <ppalka@redhat.com>
+
+ * include/std/flat_map (_Flat_map_impl::_M_insert): New bool
+ parameter __is_sorted defaulted to false. Reimplement using
+ views::zip and ranges::inplace_merge.
+ (_Flat_map_impl::insert): In the __sorted_t overload, pass
+ __is_sorted=true to _M_insert.
+
+2026-06-04 Jonathan Wakely <jwakely@redhat.com>
+
+ Backported from master:
+ 2026-06-04 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/debug/safe_iterator.h: Remove trailing whitespace.
+
2026-05-27 Jonathan Wakely <jwakely@redhat.com>
Backported from master:
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