https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102997
Bug ID: 102997 Summary: 45% calculix regression with LTO+PGO -march=native -Ofast between ce4d1f632ff3f680550d3b186b60176022f41190 and 6fca1761a16c68740f875fc487b98b6bde8e9be7 on Zen Product: gcc Version: 12.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: middle-end Assignee: unassigned at gcc dot gnu.org Reporter: hubicka at gcc dot gnu.org Target Milestone: --- This is seen on zen3 https://lnt.opensuse.org/db_default/v4/SPEC/graph?plot.0=474.170.0 zen2 https://lnt.opensuse.org/db_default/v4/SPEC/graph?plot.0=288.170.0 zen1 https://lnt.opensuse.org/db_default/v4/SPEC/graph?plot.0=8.170.0 Changes in range: commit 6fca1761a16c68740f875fc487b98b6bde8e9be7 Author: Aldy Hernandez <al...@redhat.com> Date: Wed Oct 20 07:15:17 2021 +0200 Remove unused back_threader destructor. Tested on x86-64 Linux. gcc/ChangeLog: * tree-ssa-threadbackward.c (back_threader::~back_threader): Remove. commit 8b7f9c40ef42411b6f51b508d41a580d4682069e Author: Aldy Hernandez <al...@redhat.com> Date: Tue Oct 19 10:26:47 2021 +0200 Remove superflous debugging messages from the threading registry. These are some random obvious cleanups to the threading dumps, since it seems I'm not the only one looking at dumps these days. The "just threaded" debugging message is redundant since there's already an equivalent "Registering jump thread" message. The "about to thread" message is actually confusing, because the source block doesn't match the IL, since the CFG update is mid-flight. Tested on x86-64 Linux. gcc/ChangeLog: * tree-ssa-threadupdate.c (back_jt_path_registry::adjust_paths_after_duplication): Remove superflous debugging message. (back_jt_path_registry::duplicate_thread_path): Same. commit 18606d776642a876a787c37491c52b81c30ebc83 Author: Bob Duff <d...@adacore.com> Date: Sat Oct 16 15:30:45 2021 -0400 [Ada] Remove unnecessary call to No_Uint_To_0 gcc/ada/ * gcc-interface/decl.c (gnat_to_gnu_entity): Remove unnecessary call to No_Uint_To_0. commit 4afb464e1f76d63d89c4034f78d5ebb3400eaf3c Author: Richard Kenner <ken...@adacore.com> Date: Thu Oct 14 15:31:38 2021 -0400 [Ada] Never treat intrinsic subprograms as nested gcc/ada/ * exp_unst.adb (Visit_Node, when N_Subprogram_Call): Never treat instrinsic subprograms as nested. commit bd2560b726fa93b61060a9f469ad288c512961f3 Author: Yannick Moy <m...@adacore.com> Date: Mon Aug 30 16:33:00 2021 +0200 [Ada] Proof of the runtime support for attribute 'Width gcc/ada/ * libgnat/s-widlllu.ads: Mark in SPARK. * libgnat/s-widllu.ads: Likewise. * libgnat/s-widuns.ads: Likewise. * libgnat/s-widthu.adb: Add ghost code and a pseudo-postcondition. commit c5742a0e1191365c57bc06fdbf1ff5da1028f127 Author: Yannick Moy <m...@adacore.com> Date: Fri Oct 15 12:00:16 2021 +0200 [Ada] Provide dummy body for big integers library used in reduced runtimes gcc/ada/ * libgnat/a-nbnbin__ghost.adb (Signed_Conversions, Unsigned_Conversions): Mark subprograms as not imported. * libgnat/a-nbnbin__ghost.ads: Provide a dummy body. commit 723d09e8895733f065200fa1b54c84243cf96f69 Author: Eric Botcazou <ebotca...@adacore.com> Date: Thu Oct 14 15:44:48 2021 +0200 [Ada] Fix problematic conversion of real literal in static context gcc/ada/ * sem_eval.adb (Eval_Type_Conversion): If the target subtype is a static floating-point subtype and the result is a real literal, consider its machine-rounded value to raise Constraint_Error. (Test_In_Range): Turn local variables into constants. commit f6f8b3f95e55084b59ecc8fbe0f0cfd485d58c39 Author: Doug Rupp <r...@adacore.com> Date: Thu Oct 14 08:41:56 2021 -0700 [Ada] Delete unused runtime files gcc/ada/ * libgnat/g-io-put__vxworks.adb: Remove (unused) * libgnat/s-parame__ae653.ads: Likewise. * libgnat/s-thread.ads: Likewise. * libgnat/s-thread__ae653.adb: Likewise. commit 60440d3cf51acb9cb63543d5bb71fd50cfdd9470 Author: Eric Botcazou <ebotca...@adacore.com> Date: Wed Oct 13 20:50:28 2021 +0200 [Ada] Factor out machine rounding operations gcc/ada/ * sem_eval.ads (Machine_Number): New inline function. * sem_eval.adb (Machine_Number): New function body implementing the machine rounding operation specified by RM 4.9(38/2). (Check_Non_Static_Context): Call Machine_Number and set the Is_Machine_Number flag consistently on the resulting node. * sem_attr.adb (Eval_Attribute) <Attribute_Machine>: Likewise. * checks.adb (Apply_Float_Conversion_Check): Call Machine_Number. (Round_Machine): Likewise. commit 931d4819f740ade9707436447b6d7a1148d65d54 Author: Johannes Kliemann <kliem...@adacore.com> Date: Fri Oct 8 15:55:33 2021 +0000 [Ada] Define __wrs_rtp_base in linker spec gcc/ada/ * vxworks7-cert-rtp-link.spec: Add the definition of __wrs_rtp_base. commit 6cf01c9277b81b81e8d09fe770b5fafe25fd880f Author: Piotr Trojanek <troja...@adacore.com> Date: Wed Oct 13 13:40:28 2021 +0200 [Ada] Reject boxes in delta record aggregates gcc/ada/ * sem_aggr.adb (Resolve_Delta_Record_Aggregate): Reject boxes in record delta aggregates. commit 50cdd660b2ac54abb2659c7a88200d4c2fd1f195 Author: Justin Squirek <squi...@adacore.com> Date: Thu Sep 23 11:04:25 2021 -0400 [Ada] Missing accessibility check when returning discriminated types gcc/ada/ * sem_ch6.adb (Check_Return_Construct_Accessibility): Modify generation of accessibility checks to be more consolidated and get triggered properly in required cases. * sem_util.adb (Accessibility_Level): Add extra check within condition to handle aliased formals properly in more cases. commit 9267014b351edf5aa0d0951545ec405edec5e3f5 Author: Justin Squirek <squi...@adacore.com> Date: Tue Oct 12 14:04:16 2021 -0400 [Ada] Crash on object of protected type with defaulted access component gcc/ada/ * exp_ch7.adb (Make_Final_Call): Detect expanded protected types and use original protected type in order to calculate appropriate finalization routine. commit 0f074aa4aa248e9602765155acff57604c1d9778 Author: Johannes Kliemann <kliem...@adacore.com> Date: Thu Sep 30 13:41:13 2021 +0200 [Ada] Add ghost code version of Ada.Numerics.Big_Numbers.Big_Integers gcc/ada/ * libgnat/a-nbnbin__ghost.ads: Add ghost package. commit 2aa814cb27fe3f61adfe894d52f01a4c377263fe Author: Piotr Trojanek <troja...@adacore.com> Date: Wed Oct 13 13:48:42 2021 +0200 [Ada] Refine type of a counter function for record delta aggregate gcc/ada/ * sem_aggr.adb (Variant_Depth): Refine type from Integer to Natural. commit 36e38022125f2f336e5d281fb3e5e66191d21e73 Author: Bob Duff <d...@adacore.com> Date: Wed Oct 6 09:03:53 2021 -0400 [Ada] tech debt: Clean up Uint fields, such as Esize gcc/ada/ * atree.ads: Comment improvements. How is a "completely new node" different from a "new node"? Document default values corresponding to field types. * exp_ch7.adb (Process_Tagged_Type_Declaration): Use higher-level Scope_Depth instead of Scope_Depth_Value. Remove confusing comment: not clear what a "true" library level package is. * uintp.adb (Image_Out): Print No_Uint in a more readable way. * gen_il-gen.adb, gen_il-gen-gen_entities.adb, gen_il-gen-gen_nodes.adb, gen_il-types.ads: Tighten up the subtypes of fields whose type is Uint, where possible; use more-constrained subtypes such as Unat. * einfo-utils.adb, einfo-utils.ads, exp_attr.adb, exp_ch3.adb, exp_intr.adb, exp_unst.adb, exp_util.adb, freeze.adb, repinfo.adb, sem.adb, sem_ch12.adb, sem_ch13.adb, sem_ch3.adb, sem_ch8.adb, sem_util.adb, sprint.adb, treepr.adb: No longer use Uint_0 to indicate "unknown" or "not yet known" for various fields whose type is Uint. Use No_Uint for that, except in a small number of legacy cases that cause test failures. Protect many queries of such fields with calls to Known_... functions. Improve comments. * exp_aggr.adb: Likewise. (Is_OK_Aggregate): Check whether Csiz is present. (Aggr_Assignment_OK_For_Backend): Ensure we do not access an uninitialized size. * exp_strm.adb (Build_Elementary_Input_Call, Build_Elementary_Write_Call): Check whether P_Size is present. * cstand.adb: Leave Component_Size of Any_Composite unknown. Similar for RM_Size of Standard_Exception_Type. These should not be used. * einfo.ads: Comment improvements. * exp_disp.ads: Minor. * gen_il-internals.ads, gen_il-internals.adb: Minor. * sinfo-utils.adb: Take advantage of full-coverage rules. * types.h: Minor. commit 749e01a5f310f2c4327f030d425aa6e23afbbbd5 Author: Gary Dismukes <dismu...@adacore.com> Date: Fri Oct 8 17:57:37 2021 -0400 [Ada] Warning on nonmatching subtypes in fully conforming subprogram specs and bodies gcc/ada/ * sem_ch6.adb: Add with and use of Warnsw. (Check_Conformance): Report a warning when subtypes or designated subtypes of formal parameters or result subtypes denote different declarations between the spec and body of the (Subprogram_Subtypes_Have_Same_Declaration): New function nested within Check_Conformance that determines whether two subtype entities referenced in a subprogram come from the same declaration. Returns True immediately if the subprogram is in a generic instantiation, or the subprogram is marked Is_Internal or is declared in an internal (GNAT library) unit, or GNAT_Mode is enabled, otherwise compares the nonlimited views of the entities (or their designated subtypes' nonlimited views in the anonymous access cases). (Nonlimited_View_Of_Subtype): New function nested within function Subprogram_Subtypes_Have_Same_Declaration that returns Non_Limited_View of a type or subtype that is an incomplete or class-wide type that comes from a limited of a package (From_Limited_With is True for the entity), or returns Full_View when the nonlimited view is an incomplete type. Otherwise returns the entity passed in. * warnsw.ads (Warn_On_Pedantic_Checks): New warning flag. (type Warning_Record): New component Warn_On_Pedantic_Checks. * warnsw.adb (All_Warnings): Set Warn_On_Pedantic_Checks from parameter Setting. (Restore_Warnings): Restore the value of the Warn_On_Pedantic_Checks flag. (Save_Warnings): Save the value of the Warn_On_Pedantic_Checks flag. (Set_Underscore_Warning_Switch): Add settings of the Warn_On_Pedantic flag according to the switch ("-gnatw_p" vs. "-gnatw_P"). * doc/gnat_ugn/building_executable_programs_with_gnat.rst: Add documentation of new switches -gnatw_p and -gnatw_P (warnings for pedantic checks). * gnat_ugn.texi: Regenerate. * usage.adb: Add Warn_On_Pedantic_Checks. commit ff2746728050429684bf62729df798189cc1d396 Author: Piotr Trojanek <troja...@adacore.com> Date: Tue Oct 12 17:42:05 2021 +0200 [Ada] Prevent use of an uninitialized AST field with universal integer gcc/ada/ * exp_spark.adb (Expand_SPARK_N_Attribute_Reference): Guard against equality of an uninitialized RM_Size field. commit d24e5767fe780653d5601b69d981f33e2a62e47e Author: Eric Botcazou <ebotca...@adacore.com> Date: Mon Oct 11 16:16:41 2021 +0200 [Ada] Expose and use type-generic GCC atomic builtins gcc/ada/ * sem_ch12.adb (Analyze_Subprogram_Instantiation): Also propagate an interface name on an intrinsic subprogram. Remove obsolete comment. * libgnat/s-atopri.ads (Atomic_Load): New generic intrinsic function (Atomic_Load_8): Rewrite into instantiation. (Atomic_Load_16): Likewise. (Atomic_Load_32): Likewise. (Atomic_Load_64): Likewise. (Sync_Compare_And_Swap): New generic intrinsic function. (Sync_Compare_And_Swap_8): Rewrite into instantiation. (Sync_Compare_And_Swap_16): Likewise. (Sync_Compare_And_Swap_32): Likewise. (Sync_Compare_And_Swap_64): Likewise. (Lock_Free_Read): New generic inline function. (Lock_Free_Read_8): Rewrite into instantiation. (Lock_Free_Read_16): Likewise. (Lock_Free_Read_32): Likewise. (Lock_Free_Read_64): Likewise. (Lock_Free_Try_Write): New generic inline function. (Lock_Free_Try_Write_8): Rewrite into instantiation. (Lock_Free_Try_Write_16): Likewise. (Lock_Free_Try_Write_32): Likewise. (Lock_Free_Try_Write_64): Likewise. * libgnat/s-atopri.adb (Lock_Free_Read): New function body. (Lock_Free_Read_8): Delete. (Lock_Free_Read_16): Likewise. (Lock_Free_Read_32): Likewise. (Lock_Free_Read_64): Likewise. (Lock_Free_Try_Write): New function body. (Lock_Free_Try_Write_8): Delete. (Lock_Free_Try_Write_16): Likewise. (Lock_Free_Try_Write_32): Likewise. (Lock_Free_Try_Write_64): Likewise. * libgnat/s-aoinar.adb (Atomic_Fetch_And_Add): Use type-generic GCC atomic builtin and tidy up implementation. (Atomic_Fetch_And_Subtract): Likewise. * libgnat/s-aomoar.adb (Atomic_Fetch_And_Add): Likewise. (Atomic_Fetch_And_Subtract): Likewise. * libgnat/s-atopex.adb (Atomic_Exchange): Likewise. (Atomic_Compare_And_Exchange): Likewise. commit abb540a70b05556da1b318e67f82d668b93d0824 Author: Eric Botcazou <ebotca...@adacore.com> Date: Tue Oct 12 11:56:46 2021 +0200 [Ada] Rewrite tests on Convention_Intrinsic gcc/ada/ * gcc-interface/decl.c (gnat_to_gnu_entity) <E_Subprogram_Type>: Replace test on Convention_Intrinsic with Is_Intrinsic_Subprogram. (gnat_to_gnu_param): Likewise. (gnat_to_gnu_subprog_type): Likewise. * gcc-interface/trans.c (elaborate_all_entities_for_package): Ditto. commit 4b39bab947436640c20624ec58b61830c8ab2d71 Author: Eric Botcazou <ebotca...@adacore.com> Date: Mon Oct 11 16:56:06 2021 +0200 [Ada] Small cleanup in Eval_Integer_Literal gcc/ada/ * sem_eval.ads (Check_Non_Static_Context): Update documentation. * sem_eval.adb (In_Any_Integer_Context): Change parameter type, adjust accordingly and remove unreachable case. (Eval_Integer_Literal): Consider the node kind throughout and trim down verbose condition. commit 0a8dcff179804d928b20ea8c2a40bc73035acaf3 Author: Doug Rupp <r...@adacore.com> Date: Mon Sep 20 10:31:02 2021 -0700 [Ada] Get rid of Frontend_Exceptions refs gcc/ada/ * Makefile.rtl: Remove references to system-vxworks-ppc.ads and system-vxworks-x86.ads. * libgnat/system-vxworks-ppc.ads: Remove. * libgnat/system-vxworks-ppc-ravenscar.ads: Likewise. * libgnat/system-vxworks-x86.ads: Likewise. commit 8c73de6ea4c05d11b278626e170d5932d7955095 Author: Yannick Moy <m...@adacore.com> Date: Thu Oct 7 09:05:45 2021 +0200 [Ada] Issue warning on unused quantified expression gcc/ada/ * sem_ch4.adb (Analyze_QUantified_Expression): Issue warning on conjunct/disjunct sub-expression of the full expression inside a quantified expression, when it does not reference the quantified variable. commit d9fe0e53d8dbc7cae3170cd6ad783100ec3a704a Author: Marc Poulhiès <poulh...@adacore.com> Date: Fri Oct 8 10:02:11 2021 +0200 [Ada] Fix type conversion handling in validity checks gcc/ada/ * checks.adb (Insert_Valid_Check): in case of checked type conversion, update Typ to match Exp's type and add call to Analyze_And_Resolve. commit b47b5438b9b95cea90f8d925518e893259255a50 Author: Aldy Hernandez <al...@redhat.com> Date: Wed Oct 20 09:06:18 2021 +0200 Remove unused back_threader_registry::m_threaded_paths. Tested on x86-64 Linux. gcc/ChangeLog: * tree-ssa-threadbackward.c (back_threader_registry::back_threader_registry): Remove. (back_threader_registry::register_path): Remove m_threaded_paths. commit 82cd78f2c31db1664ca154d7fcd24e9eaee1427f Author: Aldy Hernandez <al...@redhat.com> Date: Wed Oct 20 09:05:23 2021 +0200 Restore --param=max-fsm-thread-length The removal of --param=max-fsm-thread-length is causing code explosion. I thought that --param=max-fsm-thread-path-insns was a better gague for path profitability than raw BB length, but it turns out that we don't take into account PHIs when estimating the number of statements. In this PR, we have a sequence of very large PHIs that have us traversing extremely large paths that blow up the compilation. We could fix this a couple of different ways. We could avoid traversing more than a certain number of PHI arguments, or ignore large PHIs altogether. The old implementation certainly had this knob, and we could cut things off before we even got to the ranger. We could also adjust the instruction estimation to take into account PHIs, but I'm sure we'll mess something else in the process ;-). The easiest thing to do is just restore the knob. At a later time we could tweak this further, for instance, disregarding empty blocks in the count. BTW, this is the reason I didn't chop things off in the lowlevel registry for all threaders: the forward threader can't really explore too deep paths, but it could theoretically get there while threading over empty blocks. This fixes 102814, 102852, and I bet it solves the Linux kernel cross compile issue. Tested on x86-64 Linux. gcc/ChangeLog: PR tree-optimization/102814 * doc/invoke.texi: Document --param=max-fsm-thread-length. * params.opt: Add --param=max-fsm-thread-length. * tree-ssa-threadbackward.c (back_threader_profitability::profitable_path_p): Fail on paths longer than max-fsm-thread-length. commit 972ee845f54839e9bd2e4611bb268d75440f3845 Author: Eric Botcazou <ebotca...@adacore.com> Date: Wed Oct 20 10:42:56 2021 +0200 Fix PR middle-end/102764 This is a regression present on the mainline in the form of -fcompare-debug failure at -O3 on a compiler-generated testcase. Fixed by disregarding a debug statement in the last position of a basic block to reset the current location for the outgoing edges. gcc/ PR middle-end/102764 * cfgexpand.c (expand_gimple_basic_block): Disregard a final debug statement to reset the current location for the outgoing edges. gcc/testsuite/ * gcc.dg/pr102764.c: New test. commit 8fe93cc664ded8cc1952da28b23f3fc68504a73e Author: Arnaud Charlet <char...@adacore.com> Date: Wed Oct 20 10:23:40 2021 +0200 Avoid exception propagation during bootstrap This addresses PR ada/100486, which is the bootstrap failure of GCC 11 for 32-bit Windows in the MSYS setup. The PR shows that we cannot rely on exception propagation being operational during the bootstrap, at least on the 11 branch, so fix this by removing the problematic raise statement. gcc/ada/ PR ada/100486 * sem_prag.adb (Check_Valid_Library_Unit_Pragma): Do not raise an exception as part of the bootstrap. commit c7abdf46fb7ac9a0c37f120feff3fcc3a752584f Author: Jakub Jelinek <ja...@redhat.com> Date: Wed Oct 20 09:34:51 2021 +0200 openmp: Fix up struct gomp_work_share handling [PR102838] If GOMP_HAVE_EFFICIENT_ALIGNED_ALLOC is not defined, the intent was to treat the split of the structure between first cacheline (64 bytes) as mostly write-once, use afterwards and second cacheline as rw just as an optimization. But as has been reported, with vectorization enabled at -O2 it can now result in aligned vector 16-byte or larger stores. When not having posix_memalign/aligned_alloc/memalign or other similar API, alloc.c emulates it but it needs to allocate extra memory for the dynamic realignment. So, for the GOMP_HAVE_EFFICIENT_ALIGNED_ALLOC not defined case, this patch stops using aligned (64) attribute in the middle of the structure and instead inserts padding that puts the second half of the structure at offset 64 bytes. And when GOMP_HAVE_EFFICIENT_ALIGNED_ALLOC is defined, usually it was allocated as aligned, but for the orphaned case it could still be allocated just with gomp_malloc without guaranteed proper alignment. 2021-10-20 Jakub Jelinek <ja...@redhat.com> PR libgomp/102838 * libgomp.h (struct gomp_work_share_1st_cacheline): New type. (struct gomp_work_share): Only use aligned(64) attribute if GOMP_HAVE_EFFICIENT_ALIGNED_ALLOC is defined, otherwise just add padding before lock to ensure lock is at offset 64 bytes into the structure. (gomp_workshare_struct_check1, gomp_workshare_struct_check2): New poor man's static assertions. * work.c (gomp_work_share_start): Use gomp_aligned_alloc instead of gomp_malloc if GOMP_HAVE_EFFICIENT_ALIGNED_ALLOC. commit d4044db034b40c275b5f287d5854a102d22e07c0 Author: Tobias Burnus <tob...@codesourcery.com> Date: Wed Oct 20 08:32:16 2021 +0200 gfortran.dg/bind-c-contiguous-5.c: Big-endian fix gcc/testsuite/ PR fortran/102815 * gfortran.dg/bind-c-contiguous-5.c (do_call, reset_var): Handle big andian. commit 424945258d1778617b5d3d5273f6e1c10e718f80 Author: Jakub Jelinek <ja...@redhat.com> Date: Wed Oct 20 08:38:58 2021 +0200 c++: Fix up push_local_extern_decl_alias error recovery [PR102642] My recent push_local_extern_decl_alias change broke error-recovery, do_pushdecl can return error_mark_node and set_decl_tls_model can't be called on that. There are other code paths that store error_mark_node into DECL_LOCAL_DECL_ALIAS, with the intent to differentiate the cases where we haven't yet tried to push it into the namespace scope (NULL) and one where we have tried it but it failed (error_mark_node), but looking around, there are other spots where we call functions or do processing which doesn't tolerate error_mark_node. So, the first hunk with the testcase fixes the testcase, the others fix what I've spotted and the fix was easy to figure out (there are I think 3 other spots mainly for function multiversioning). 2021-10-20 Jakub Jelinek <ja...@redhat.com> PR c++/102642 * name-lookup.c (push_local_extern_decl_alias): Don't call set_decl_tls_model on error_mark_node. * decl.c (make_rtl_for_nonlocal_decl): Don't call set_user_assembler_name on error_mark_node. * parser.c (cp_parser_oacc_declare): Ignore DECL_LOCAL_DECL_ALIAS if it is error_mark_node. (cp_parser_omp_declare_target): Likewise. * g++.dg/tls/pr102642.C: New test. commit d8edfadfc7a9795b65177a50ce44fd348858e844 Author: Aldy Hernandez <al...@redhat.com> Date: Mon Oct 4 09:47:02 2021 +0200 Disallow loop rotation and loop header crossing in jump threaders. There is a lot of fall-out from this patch, as there were many threading tests that assumed the restrictions introduced by this patch were valid. Some tests have merely shifted the threading to after loop optimizations, but others ended up with no threading opportunities at all. Surprisingly some tests ended up with more total threads. It was a crapshoot all around. On a postive note, there are 6 tests that no longer XFAIL, and one guality test which now passes. I felt a bit queasy about such a fundamental change wrt threading, so I ran it through my callgrind test harness (.ii files from a bootstrap). There was no change in overall compilation, DOM, or the VRP threaders. However, there was a slight increase of 1.63% in the backward threader. I'm pretty sure we could reduce this if we incorporated the restrictions into their profitability code. This way we could stop the search when we ran into one of these restrictions. Not sure it's worth it at this point. Tested on x86-64 Linux. Co-authored-by: Richard Biener <rguent...@suse.de> gcc/ChangeLog: * tree-ssa-threadupdate.c (cancel_thread): Dump threading reason on the same line as the threading cancellation. (jt_path_registry::cancel_invalid_paths): Avoid rotating loops. Avoid threading through loop headers where the path remains in the loop. libgomp/ChangeLog: * testsuite/libgomp.graphite/force-parallel-5.c: Remove xfail. gcc/testsuite/ChangeLog: * gcc.dg/Warray-bounds-87.c: Remove xfail. * gcc.dg/analyzer/pr94851-2.c: Remove xfail. * gcc.dg/graphite/pr69728.c: Remove xfail. * gcc.dg/graphite/scop-dsyr2k.c: Remove xfail. * gcc.dg/graphite/scop-dsyrk.c: Remove xfail. * gcc.dg/shrink-wrap-loop.c: Remove xfail. * gcc.dg/loop-8.c: Adjust for new threading restrictions. * gcc.dg/tree-ssa/ifc-20040816-1.c: Same. * gcc.dg/tree-ssa/pr21559.c: Same. * gcc.dg/tree-ssa/pr59597.c: Same. * gcc.dg/tree-ssa/pr71437.c: Same. * gcc.dg/tree-ssa/pr77445-2.c: Same. * gcc.dg/tree-ssa/ssa-dom-thread-4.c: Same. * gcc.dg/tree-ssa/ssa-dom-thread-7.c: Same. * gcc.dg/vect/bb-slp-16.c: Same. * gcc.dg/tree-ssa/ssa-dom-thread-6.c: Remove. * gcc.dg/tree-ssa/ssa-dom-thread-18.c: Remove. * gcc.dg/tree-ssa/ssa-dom-thread-2a.c: Remove. * gcc.dg/tree-ssa/ssa-thread-invalid.c: New test. commit f36240f8c835d792f788b6724e272fc0a4a4f26f Author: Jeff Law <jeffreya...@gmail.com> Date: Wed Oct 20 00:26:59 2021 -0400 Trivial fix to gil-1.c when analyzer is not enabled gcc/testsuite * gcc.dg/plugin/gil-1.c: Add dg-require-effective-target marker. commit 9fbb6fa123be81c55e888e5d117e63d05780f0ed Author: Siddhesh Poyarekar <siddh...@gotplt.org> Date: Tue Oct 19 09:36:35 2021 +0530 tree-object-size: Make unknown a computation Compute the unknown size value as a function of the min/max bit of object_size_type. This transforms into a neat little branchless sequence on x86_64: movl %edi, %eax sarl %eax xorl $1, %eax negl %eax cltq which should be faster than loading the value from memory. A quick unscientific test using `time make check-gcc RUNTESTFLAGS="dg.exp=builtin*"` shaves about half a second off execution time with this. Also simplify implementation of unknown_object_size. gcc/ChangeLog: * tree-object-size.c (unknown): Make into a function. Adjust all uses. (unknown_object_size): Simplify implementation. Signed-off-by: Siddhesh Poyarekar <siddh...@gotplt.org> commit 3c8d8c0be95e99dc0cba7f6fad2429243582119f Author: liuhongt <hongtao....@intel.com> Date: Thu Oct 14 09:31:03 2021 +0800 Adjust testcase for O2 vectorization. As discussed in [1], this patch add xfail/target selector to those testcases, also make a copy of them so that they can be tested w/o vectorization. Newly added xfail/target selectors are used to check the vectorization capability of continuous byte/double bytes storage, these scenarios are exactly the part of the testcases that regressed after O2 vectorization. [1] https://gcc.gnu.org/pipermail/gcc-patches/2021-October/581456.html. 2021-10-19 Hongtao Liu <hongtao....@intel.com> Kewen Lin <li...@linux.ibm.com> gcc/ChangeLog * doc/sourcebuild.texi (Effective-Target Keywords): Document vect_slp_v2qi_store, vect_slp_v4qi_store, vect_slp_v8qi_store, vect_slp_v16qi_store, vect_slp_v2hi_store, vect_slp_v4hi_store, vect_slp_v2si_store, vect_slp_v4si_store. gcc/testsuite/ChangeLog PR middle-end/102722 PR middle-end/102697 PR middle-end/102462 PR middle-end/102706 PR middle-end/102744 * c-c++-common/Wstringop-overflow-2.c: Adjust testcase with new xfail/target selector. * gcc.dg/Warray-bounds-51.c: Ditto. * gcc.dg/Warray-parameter-3.c: Ditto. * gcc.dg/Wstringop-overflow-14.c: Ditto. * gcc.dg/Wstringop-overflow-21.c: Ditto. * gcc.dg/Wstringop-overflow-68.c: Ditto. * gcc.dg/Wstringop-overflow-76.c: Ditto. * gcc.dg/Warray-bounds-48.c: Ditto. * gcc.dg/Wzero-length-array-bounds-2.c: Ditto. * lib/target-supports.exp (check_vect_slp_aligned_store_usage): New function. (check_effective_target_vect_slp_v2qi_store): Ditto. (check_effective_target_vect_slp_v4qi_store): Ditto. (check_effective_target_vect_slp_v8qi_store): Ditto. (check_effective_target_vect_slp_v16qi_store): Ditto. (check_effective_target_vect_slp_v2hi_store): Ditto. (check_effective_target_vect_slp_v4hi_store): Ditto. (check_effective_target_vect_slp_v2si_store): Ditto. (check_effective_target_vect_slp_v4si_store): Ditto. * c-c++-common/Wstringop-overflow-2-novec.c: New test. * gcc.dg/Warray-bounds-51-novec.c: New test. * gcc.dg/Warray-bounds-48-novec.c: New test. * gcc.dg/Warray-parameter-3-novec.c: New test. * gcc.dg/Wstringop-overflow-14-novec.c: New test. * gcc.dg/Wstringop-overflow-21-novec.c: New test. * gcc.dg/Wstringop-overflow-76-novec.c: New test. * gcc.dg/Wzero-length-array-bounds-2-novec.c: New test. commit 19472fc3fc0cabcee5b8a5073e8128d21a1ed6f2 Author: GCC Administrator <gccad...@gcc.gnu.org> Date: Wed Oct 20 00:16:43 2021 +0000 Daily bump. commit 5566f3c6b46cf053ae4b918513e318561b7af053 Author: Patrick Palka <ppa...@redhat.com> Date: Tue Oct 19 18:07:19 2021 -0400 libstdc++: Implement LWG 3580 change to ranges::iota_view libstdc++-v3/ChangeLog: * include/std/ranges (iota_view::_Iterator::operator+): Adjust definition as per LWG 3580. (iota_view::_Iterator::operator-): Likewise. commit bed1892f5b1a6601caa93d54c156a4d04d76ee7b Author: Patrick Palka <ppa...@redhat.com> Date: Tue Oct 19 18:07:16 2021 -0400 libstdc++: Implement LWG 3568 change to ranges::basic_istream_view libstdc++-v3/ChangeLog: * include/std/ranges (basic_istream_view::_M_object): Value initialize as per LWG 3568. commit 98af6b86bc6cac705474c14bb3f9748f6866c859 Author: Patrick Palka <ppa...@redhat.com> Date: Tue Oct 19 18:07:05 2021 -0400 libstdc++: Implement LWG 3470 change to ranges::subrange libstdc++-v3/ChangeLog: * include/bits/ranges_util.h (__detail::__uses_nonqualification_pointer_conversion): Define and use it ... (__detail::__convertible_to_nonslicing): ... here, as per LWG 3470. * testsuite/std/ranges/subrange/1.cc: New test. commit 861440a77b62756d200ae356c4fdfd9653902e77 Author: Patrick Palka <ppa...@redhat.com> Date: Tue Oct 19 17:54:24 2021 -0400 libstdc++: Implement LWG 3523 changes to ranges::iota_view libstdc++-v3/ChangeLog: * include/std/ranges (iota_view::_Iterator): Befriend iota_view. (iota_view::_Sentinel): Likewise. (iota_view::iota_view): Add three overloads, each taking an iterator/sentinel pair as per LWG 3523. * testsuite/std/ranges/iota/iota_view.cc (test06): New test. commit 53b1c382d5a6fe8dec394a7ff820d77cda02af81 Author: Patrick Palka <ppa...@redhat.com> Date: Tue Oct 19 17:50:56 2021 -0400 libstdc++: Implement LWG 3549 changes to ranges::enable_view This patch also reverts r11-3504 since that workaround is now obsolete after this resolution. libstdc++-v3/ChangeLog: * include/bits/ranges_base.h (view_interface): Forward declare. (__detail::__is_derived_from_view_interface_fn): Declare. (__detail::__is_derived_from_view_interface): Define as per LWG 3549. (enable_view): Adjust as per LWG 3549. * include/bits/ranges_util.h (view_interface): Don't derive from view_base. * include/std/ranges (filter_view): Revert r11-3504 change. (transform_view): Likewise. (take_view): Likewise. (take_while_view): Likewise. (drop_view): Likewise. (drop_while_view): Likewise. (join_view): Likewise. (lazy_split_view): Likewise. (split_view): Likewise. (reverse_view): Likewise. * testsuite/std/ranges/adaptors/sizeof.cc: Update expected sizes. * testsuite/std/ranges/view.cc (test_view::test_view): Remove this default ctor since views no longer need to be default initable. (test01): New test. commit c6a1fdd6dde3a95997731c8339d70970aca67594 Author: Jonathan Wakely <jwak...@redhat.com> Date: Tue Oct 19 20:37:53 2021 +0100 doc: Fix typo in name of PowerPC __builtin_cpu_supports built-in gcc/ChangeLog: * doc/extend.texi (Basic PowerPC Built-in Functions): Fix typo. commit 58f339fc5eaae7db9526f81ab91f282ad4a9b8cc Author: Jonathan Wakely <jwak...@redhat.com> Date: Tue Oct 19 12:31:06 2021 +0100 libstdc++: Implement std::random_device::entropy() for other sources Currently this function only returns a non-zero value for /dev/random and /dev/urandom. When a hardware instruction such as RDRAND is in use it should (in theory) be perfectly random and produce 32 bits of entropy in each 32-bit result. Add a helper function to identify the source of randomness from the _M_func and _M_file data members, and return a suitable value when RDRAND or RDSEED is being used. libstdc++-v3/ChangeLog: * src/c++11/random.cc (which_source): New helper function. (random_device::_M_getentropy()): Use which_source and return suitable values for sources other than device files. * testsuite/26_numerics/random/random_device/entropy.cc: New test. commit 3cfbe5dc08b574bccc398256946cc03e2a767329 Author: Paul A. Clarke <p...@us.ibm.com> Date: Mon Aug 9 13:08:25 2021 -0500 rs6000: Guard some x86 intrinsics implementations Some compatibility implementations of x86 intrinsics include Power intrinsics which require POWER8. Guard them. emmintrin.h: - _mm_cmpord_pd: Remove code which was ostensibly for pre-POWER8, but which indeed depended on POWER8 (vec_cmpgt(v2du)/vcmpgtud). The "POWER8" version works fine on pre-POWER8. - _mm_mul_epu32: vec_mule(v4su) uses vmuleuw. pmmintrin.h: - _mm_movehdup_ps: vec_mergeo(v4su) uses vmrgow. - _mm_moveldup_ps: vec_mergee(v4su) uses vmrgew. smmintrin.h: - _mm_cmpeq_epi64: vec_cmpeq(v2di) uses vcmpequd. - _mm_mul_epi32: vec_mule(v4si) uses vmuluwm. - _mm_cmpgt_epi64: vec_cmpgt(v2di) uses vcmpgtsd. tmmintrin.h: - _mm_sign_epi8: vec_neg(v4si) uses vsububm. - _mm_sign_epi16: vec_neg(v4si) uses vsubuhm. - _mm_sign_epi32: vec_neg(v4si) uses vsubuwm. Note that the above three could actually be supported pre-POWER8, but current GCC does not support them before POWER8. - _mm_sign_pi8: depends on _mm_sign_epi8. - _mm_sign_pi16: depends on _mm_sign_epi16. - _mm_sign_pi32: depends on _mm_sign_epi32. sse4_2-pcmpgtq.c: - _mm_cmpgt_epi64: vec_cmpeq(v2di) uses vcmpequd. 2021-10-19 Paul A. Clarke <p...@us.ibm.com> gcc PR target/101893 PR target/102719 * config/rs6000/emmintrin.h: Guard POWER8 intrinsics. * config/rs6000/pmmintrin.h: Same. * config/rs6000/smmintrin.h: Same. * config/rs6000/tmmintrin.h: Same. gcc/testsuite * gcc.target/powerpc/sse4_2-pcmpgtq.c: Tighten dg constraints to minimally Power8. commit ce8add4b0e086e671a7e08503408356ad6beee7f Author: Paul A. Clarke <p...@us.ibm.com> Date: Mon Oct 18 19:12:12 2021 -0500 rs6000: Add nmmintrin.h to extra_headers Fix an omission in commit 29fb1e831bf1c25e4574bf2f98a9f534e5c67665. 2021-10-19 Paul A. Clarke <p...@us.ibm.com> gcc * config.gcc (extra_headers): Add nmmintrin.h. commit 04d392e8430ca66a3f12b7db4f3cb84788269a48 Author: Jonathan Wakely <jwak...@redhat.com> Date: Tue Oct 19 16:00:13 2021 +0100 libstdc++: Fix doxygen generation to work with relative paths In r12-826 I tried to remove some redundant steps from the doxygen build, but they are needed when configure is run as a relative path. The use of pwd is to resolve the relative path to an absolute one. libstdc++-v3/ChangeLog: * doc/Makefile.am (stamp-html-doxygen, stamp-html-doxygen) (stamp-latex-doxygen, stamp-man-doxygen): Fix recipes for relative ${top_srcdir}. * doc/Makefile.in: Regenerate. commit ff0eec94e87dfb7dc387f120ca5ade2707aecf50 Author: Tobias Burnus <tob...@codesourcery.com> Date: Tue Oct 19 16:38:56 2021 +0200 Fortran: Fix 'fn spec' for deferred character length Shows now up with gfortran.dg/deferred_type_param_6.f90 due to more ME optimizations, causing fails without this commit. gcc/fortran/ChangeLog: * trans-types.c (create_fn_spec): For allocatable/pointer character(len=:), use 'w' not 'R' as fn spec for the length dummy argument. commit 7ef0cc444488e0bfa9b63d46307105e78ffc17a6 Author: Martin Liska <mli...@suse.cz> Date: Tue Oct 19 16:12:42 2021 +0200 Make file utf8 valid input. liboffloadmic/ChangeLog: * include/coi/source/COIBuffer_source.h: Convert 2 chars to unicode. commit 93bd0213885739a1073f8c98911f8a00c0eb5597 Author: Richard Biener <rguent...@suse.de> Date: Mon Oct 18 15:55:22 2021 +0200 Refactor vect_supportable_dr_alignment This refactors vect_supportable_dr_alignment to get the misalignment as input parameter which allows us to elide modifying/restoring of DR_MISALIGNMENT during alignment peeling analysis which eventually makes it more straight-forward to split out the negative step handling. 2021-10-19 Richard Biener <rguent...@suse.de> * tree-vectorizer.h (vect_supportable_dr_alignment): Add misalignment parameter. * tree-vect-data-refs.c (vect_get_peeling_costs_all_drs): Do not change DR_MISALIGNMENT in place, instead pass the adjusted misalignment to vect_supportable_dr_alignment. (vect_peeling_supportable): Likewise. (vect_peeling_hash_get_lowest_cost): Adjust. (vect_enhance_data_refs_alignment): Likewise. (vect_vfa_access_size): Likewise. (vect_supportable_dr_alignment): Add misalignment parameter and simplify. * tree-vect-stmts.c (get_negative_load_store_type): Adjust. (get_group_load_store_type): Likewise. (get_load_store_type): Likewise. commit 5a8832b1659e311437d25b7ec8b078be27ae54b8 Author: Jonathan Wakely <jwak...@redhat.com> Date: Tue Oct 19 11:53:27 2021 +0100 libstdc++: Change std::variant union member to empty struct This more clearly expresses the intent (a completely unused, trivial type) than using char. It's also consistent with the unions in std::optional. libstdc++-v3/ChangeLog: * include/std/variant (_Uninitialized): Use an empty struct for the unused union member, instead of char. commit c4ecb11e4f7ea15f636e463248c8b14083bef05d Author: Jonathan Wakely <jwak...@redhat.com> Date: Tue Oct 19 11:38:26 2021 +0100 libstdc++: Fix std::stack deduction guide libstdc++-v3/ChangeLog: * include/bits/stl_stack.h (stack(Iterator, Iterator)): Remove non-deducible template parameter from deduction guide. * testsuite/23_containers/stack/deduction.cc: Check new C++23 deduction guides. commit 82b2e4f8cf5a01c6724fe3f465a77ee03cfcaae2 Author: Jonathan Wakely <jwak...@redhat.com> Date: Tue Oct 19 11:06:56 2021 +0100 libstdc++: Implement monadic operations for std::optional (P0798R8) Another new addition to the C++23 working draft. The new member functions of std::optional are only defined for C++23, but the new members of _Optional_payload_base are defined for C++20 so that they can be used in non-propagating-cache in <ranges>. The _Optional_payload_base::_M_construct member can also be used in non-propagating-cache now, because it's constexpr since r12-4389. There will be an LWG issue about the feature test macro, suggesting that we should just bump the value of __cpp_lib_optional instead. I haven't done that here, but it can be changed once consensus is reached on the change. libstdc++-v3/ChangeLog: * include/std/optional (_Optional_payload_base::_Storage): Add constructor taking a callable function to invoke. (_Optional_payload_base::_M_apply): New function. (__cpp_lib_monadic_optional): Define for C++23. (optional::and_then, optional::transform, optional::or_else): Define for C++23. * include/std/ranges (__detail::__cached): Remove. (__detail::__non_propagating_cache): Remove use of __cached for contained value. Use _Optional_payload_base::_M_construct and _Optional_payload_base::_M_apply to set the contained value. * include/std/version (__cpp_lib_monadic_optional): Define. * testsuite/20_util/optional/monadic/and_then.cc: New test. * testsuite/20_util/optional/monadic/or_else.cc: New test. * testsuite/20_util/optional/monadic/or_else_neg.cc: New test. * testsuite/20_util/optional/monadic/transform.cc: New test. * testsuite/20_util/optional/monadic/version.cc: New test. commit 6920d5a1a2834e9c62d441b8f4c6186b01107d13 Author: Tobias Burnus <tob...@codesourcery.com> Date: Tue Oct 19 15:16:01 2021 +0200 Fortran: Fix "str" to scalar descriptor conversion [PR92482] PR fortran/92482 gcc/fortran/ChangeLog: * trans-expr.c (gfc_conv_procedure_call): Use TREE_OPERAND not build_fold_indirect_ref_loc to undo an ADDR_EXPR. gcc/testsuite/ChangeLog: * gfortran.dg/bind-c-char-descr.f90: Remove xfail; extend a bit. commit e3ef92e79f9f1c4275a9e19652439089a310627d Author: Clément Chigot <clement.chi...@atos.net> Date: Thu Oct 14 09:03:13 2021 +0200 aix: ensure reference to __tls_get_addr is in text section. The garbage collector of AIX linker might remove the reference to __tls_get_addr if it's added inside an unused csect, which can be the case of .data with very simple programs. gcc/ChangeLog: 2021-10-19 Clément Chigot <clement.chi...@atos.net> * config/rs6000/rs6000.c (rs6000_xcoff_file_end): Move __tls_get_addr reference to .text csect. commit 6b34f5c5ec75823d656b6882f12d46248402a2aa Author: Martin Liska <mli...@suse.cz> Date: Tue Oct 19 11:11:16 2021 +0200 target: Support whitespaces in target attr/pragma. PR target/102375 gcc/ChangeLog: * config/aarch64/aarch64.c (aarch64_process_one_target_attr): Strip whitespaces. gcc/testsuite/ChangeLog: * gcc.target/aarch64/pr102375.c: New test. commit 5f5baf79927dfa8208f540cd1a441a56b0dfdb38 Author: Clément Chigot <clement.chi...@atos.net> Date: Tue Oct 19 13:20:14 2021 +0200 MAINTAINERS: Add myself for write after approval ChangeLog: 2021-10-19 Clément Chigot <clement.chi...@atos.net> * MAINTAINERS: Add myself for write after approval. commit 793d2549b173a0a2da6dd20ffc27acb9fd2de73e Author: Richard Biener <rguent...@suse.de> Date: Tue Oct 19 12:40:59 2021 +0200 Refactor load/store costing This passes down the already available alignment scheme and misalignment to the load/store costing routines, removing redundant queries. 2021-10-19 Richard Biener <rguent...@suse.de> * tree-vectorizer.h (vect_get_store_cost): Adjust signature. (vect_get_load_cost): Likewise. * tree-vect-data-refs.c (vect_get_data_access_cost): Get alignment support scheme and misalignment as arguments and pass them down. (vect_get_peeling_costs_all_drs): Compute that info here and note that we shouldn't need to. * tree-vect-stmts.c (vect_model_store_cost): Get alignment support scheme and misalignment as arguments. (vect_get_store_cost): Likewise. (vect_model_load_cost): Likewise. (vect_get_load_cost): Likewise. (vectorizable_store): Pass down alignment support scheme and misalignment to costing. (vectorizable_load): Likewise. commit 9890b12c72c02828c691f22198c3e0afd8678991 Author: Jonathan Wakely <jwak...@redhat.com> Date: Tue Oct 19 09:16:56 2021 +0100 libstdc++: Fix mem-initializer in std::move_only_function [PR102825] libstdc++-v3/ChangeLog: PR libstdc++/102825 * include/bits/mofunc_impl.h (move_only_function): Remove invalid base initializer. * testsuite/20_util/move_only_function/cons.cc: Instantiate constructors to check bodies. commit 476ca5ade8522d566ffffeab0bece6a64aefeecd Author: Richard Biener <rguent...@suse.de> Date: Tue Oct 19 11:36:13 2021 +0200 Compute negative offset in get_load_store_type This moves the computation of a negative offset that needs to be applied when we vectorize a negative stride access to get_load_store_type alongside where we compute the actual access method. 2021-10-19 Richard Biener <rguent...@suse.de> * tree-vect-stmts.c (get_negative_load_store_type): Add offset output parameter and initialize it. (get_group_load_store_type): Likewise. (get_load_store_type): Likewise. (vectorizable_store): Use offset as computed by get_load_store_type. (vectorizable_load): Likewise. commit d996799a507f9f4c379b55b004233be92fa63380 Author: Richard Biener <rguent...@suse.de> Date: Tue Oct 19 10:19:12 2021 +0200 tree-optimization/102827 - avoid stmts in preheader The PR shows that when carefully crafting the runtime alias condition in the vectorizer we might end up using defs from the loop preheader but will end up inserting the condition before the .LOOP_VECTORIZED call. So the following makes sure to insert invariants before that when we versioned the loop, preserving the invariant the vectorizer relies on. 2021-10-19 Richard Biener <rguent...@suse.de> PR tree-optimization/102827 * tree-if-conv.c (predicate_statements): Add pe parameter and use that edge to insert invariant stmts on. (combine_blocks): Pass through pe. (tree_if_conversion): Compute the edge to insert invariant stmts on and pass it along. * gcc.dg/pr102827.c: New testcase. commit f98359ba9d3775319fb3181009be7d3dafe9ba15 Author: Roger Sayle <ro...@nextmovesoftware.com> Date: Tue Oct 19 11:00:10 2021 +0100 PR target/102785: Correct addsub/subadd patterns on bfin. This patch resolves PR target/102785 where my recent patch to constant fold saturating addition/subtraction exposed a latent bug in the bfin backend. The patterns used for blackfin's V2HI ssaddsub and sssubadd instructions had the indices/operations swapped. This was harmless until we started evaluating these expressions at compile-time, when the mismatch was caught by the testsuite. 2021-10-19 Roger Sayle <ro...@nextmovesoftware.com> gcc/ChangeLog PR target/102785 * config/bfin/bfin.md (addsubv2hi3, subaddv2hi3, ssaddsubv2hi3, sssubaddv2hi3): Swap the order of operators in vec_concat. commit 0910c516a3d72af048af27308349167f25c406c2 Author: Xionghu Luo <luo...@linux.ibm.com> Date: Tue Oct 19 04:02:04 2021 -0500 rs6000: Remove unspecs for vec_mrghl[bhw] vmrghb only accepts permute index {0, 16, 1, 17, 2, 18, 3, 19, 4, 20, 5, 21, 6, 22, 7, 23} no matter for BE or LE in ISA, similarly for vmrglb. Remove UNSPEC_VMRGH_DIRECT/UNSPEC_VMRGL_DIRECT pattern as vec_select + vec_concat as normal RTL. Tested pass on P8LE, P9LE and P8BE{m32}. gcc/ChangeLog: 2021-10-19 Xionghu Luo <luo...@linux.ibm.com> * config/rs6000/altivec.md (*altivec_vmrghb_internal): Delete. (altivec_vmrghb_direct): New. (*altivec_vmrghh_internal): Delete. (altivec_vmrghh_direct): New. (*altivec_vmrghw_internal): Delete. (altivec_vmrghw_direct_<mode>): New. (altivec_vmrghw_direct): Delete. (*altivec_vmrglb_internal): Delete. (altivec_vmrglb_direct): New. (*altivec_vmrglh_internal): Delete. (altivec_vmrglh_direct): New. (*altivec_vmrglw_internal): Delete. (altivec_vmrglw_direct_<mode>): New. (altivec_vmrglw_direct): Delete. * config/rs6000/rs6000-p8swap.c (rtx_is_swappable_p): Adjust. * config/rs6000/rs6000.c (altivec_expand_vec_perm_const): Adjust. * config/rs6000/vsx.md (vsx_xxmrghw_<mode>): Adjust. (vsx_xxmrglw_<mode>): Adjust. gcc/testsuite/ChangeLog: 2021-10-19 Xionghu Luo <luo...@linux.ibm.com> * gcc.target/powerpc/builtins-1.c: Update instruction counts. commit d2161caffbb56a434776608af4e4491b59e508c8 Author: Aldy Hernandez <al...@redhat.com> Date: Tue Oct 19 09:33:34 2021 +0200 Change threading comment before pass_ccp pass. gcc/ChangeLog: * passes.def: Change threading comment before pass_ccp pass. commit 91419baf4d0075d11e3667b816c83687288163fd Author: Haochen Gui <guih...@gcc.gnu.org> Date: Tue Oct 19 16:28:31 2021 +0800 Optimize the builtin vec_xl_sext gcc/ * config/rs6000/rs6000-call.c (altivec_expand_lxvr_builtin): Modify the expansion for sign extension. All extensions are done within VSX registers. gcc/testsuite/ * gcc.target/powerpc/p10_vec_xl_sext.c: New test. commit 6b4c18b98127087d7f14062b81bc678f0589cd36 Author: prathamesh.kulkarni <prathamesh.kulka...@linaro.org> Date: Tue Oct 19 13:51:51 2021 +0530 [sve] PR93183 - Add support for conditional neg. gcc/testsuite/ChangeLog: PR target/93183 * gcc.target/aarch64/sve/pr93183.c: Remove -mcpu=generic+sve from dg-options. commit d19d90289d1343e4fb0550eb1151db6da8a0d1ce Author: Richard Biener <rguent...@suse.de> Date: Mon Oct 18 14:59:54 2021 +0200 Add misalignment output parameter to get_load_store_type This makes us compute the misalignment alongside the alignment support scheme in get_load_store_type, removing some out-of-place calls to the DR alignment API. 2021-10-18 Richard Biener <rguent...@suse.de> * tree-vect-stmts.c (get_group_load_store_type): Add misalignment output parameter and initialize it. (get_group_load_store_type): Likewise. (vectorizable_store): Remove now redundant queries. (vectorizable_load): Likewise. commit f45610a45236e97616726ca042898d6ac46a082e Author: Jakub Jelinek <ja...@redhat.com> Date: Tue Oct 19 09:24:57 2021 +0200 c++: Don't reject calls through PMF during constant evaluation [PR102786] The following testcase incorrectly rejects the c initializer, while in the s.*a case cxx_eval_* sees .__pfn reads etc., in the s.*&S::foo case get_member_function_from_ptrfunc creates expressions which use INTEGER_CSTs with type of pointer to METHOD_TYPE. And cxx_eval_constant_expression rejects any INTEGER_CSTs with pointer type if they aren't 0. Either we'd need to make sure we defer such folding till cp_fold but the function and pfn_from_ptrmemfunc is used from lots of places, or the following patch just tries to reject only non-zero INTEGER_CSTs with pointer types if they don't point to METHOD_TYPE in the hope that all such INTEGER_CSTs with POINTER_TYPE to METHOD_TYPE are result of folding valid pointer-to-member function expressions. I don't immediately see how one could create such INTEGER_CSTs otherwise, cast of integers to PMF is rejected and would have the PMF RECORD_TYPE anyway, etc. 2021-10-19 Jakub Jelinek <ja...@redhat.com> PR c++/102786 * constexpr.c (cxx_eval_constant_expression): Don't reject INTEGER_CSTs with type POINTER_TYPE to METHOD_TYPE. * g++.dg/cpp2a/constexpr-virtual19.C: New test. commit caab0139761b04226fab14d87c4a4f981d942bbf Author: Richard Biener <rguent...@suse.de> Date: Mon Oct 18 15:55:22 2021 +0200 Remove check_aligned parameter from vect_supportable_dr_alignment There are two calls with true as parameter, one is only relevant for the case of the misalignment being unknown which means the access is never aligned there, the other is in the peeling hash insert code used conditional on the unlimited cost model which adds an artificial count. But the way it works right now is that it boosts the count if the specific misalignment when not peeling is unsupported - in particular when the access is currently aligned we'll query the backend with a misalign value of zero. I've changed it to boost the peeling when unknown alignment is not supported instead and noted how we could in principle improve this. 2021-10-19 Richard Biener <rguent...@suse.de> * tree-vectorizer.h (vect_supportable_dr_alignment): Remove check_aligned argument. * tree-vect-data-refs.c (vect_supportable_dr_alignment): Likewise. (vect_peeling_hash_insert): Add supportable_if_not_aligned argument and do not call vect_supportable_dr_alignment here. (vect_peeling_supportable): Adjust. (vect_enhance_data_refs_alignment): Compute whether the access is supported with different alignment here and pass that down to vect_peeling_hash_insert. (vect_vfa_access_size): Adjust. * tree-vect-stmts.c (vect_get_store_cost): Likewise. (vect_get_load_cost): Likewise. (get_negative_load_store_type): Likewise. (get_group_load_store_type): Likewise. (get_load_store_type): Likewise. commit df592811f950301ed3b10a08e476dad0f2eff26a Author: Martin Liska <mli...@suse.cz> Date: Mon Oct 4 14:06:14 2021 +0200 target: support spaces in target attribute. PR target/102374 gcc/ChangeLog: * config/i386/i386-options.c (ix86_valid_target_attribute_inner_p): Strip whitespaces. * system.h (strip_whilespaces): New function. gcc/testsuite/ChangeLog: * gcc.target/i386/pr102374.c: New test. commit 38f6ee6bfc4633175ca6f6d29e597d379ccae820 Author: dianhong xu <dianhong...@intel.com> Date: Sat Oct 9 18:23:35 2021 +0800 AVX512FP16: Add *_set1_pch intrinsics. Add *_set1_pch (_Float16 _Complex A) intrinsics. gcc/ChangeLog: * config/i386/avx512fp16intrin.h: (_mm512_set1_pch): New intrinsic. * config/i386/avx512fp16vlintrin.h: (_mm256_set1_pch): New intrinsic. (_mm_set1_pch): Ditto. gcc/testsuite/ChangeLog: * gcc.target/i386/avx512fp16-set1-pch-1a.c: New test. * gcc.target/i386/avx512fp16-set1-pch-1b.c: New test. * gcc.target/i386/avx512fp16vl-set1-pch-1a.c: New test. * gcc.target/i386/avx512fp16vl-set1-pch-1b.c: New test.