2017-11-09 Jerome Lambourg <lambourg@adacore.com>
* sigtramp-qnx.c: Fix obvious typo.
2017-11-09 Doug Rupp <rupp@adacore.com>
* libgnarl/s-taprop__linux.adb (Monotonic_Clock): Minor reformatting.
2017-11-09 Ed Schonberg <schonberg@adacore.com>
* sem_res.adb (Resolve): If expression is an entity whose type has
implicit dereference, generate reference to it, because no reference is
generated for an overloaded entity during analysis, given that its
identity may not be known.
2017-11-09 Javier Miranda <miranda@adacore.com>
* exp_disp.adb (Expand_Interface_Thunk): Replace substraction of
offset-to-top field by addition.
(Make_Secondary_DT): Initialize the offset-to-top field with a negative
offset.
* exp_ch3.adb (Build_Offset_To_Top_Function): Build functions that
return a negative offset-to-top value.
(Initialize_Tag): Invoke runtime services Set_Dynamic_Offset_To_Top and
Set_Static_Offset_To_Top passing a negative offet-to-top value;
initialize also the offset-to-top field with a negative offset.
* libgnat/a-tags.adb (Base_Address): Displace the pointer by means of
an addition since the offset-to-top field is now a negative value.
(Displace): Displace the pointer to the object means of a substraction
since it is now a negative value.
(Set_Dynamic_Offset_to_top): Displace the pointer to the object by
means of a substraction since it is now a negative value.
2017-11-09 Eric Botcazou <ebotcazou@adacore.com>
* gnat1drv.adb (Gnat1drv): Call Errout.Finalize (Last_Call => True)
before Errout.Output_Messages also in the case of compilation errors.
2017-11-09 Javier Miranda <miranda@adacore.com>
* doc/gnat_ugn/the_gnat_compilation_model.rst (Interfacing with C++ at
the Class Level): Fix error interfacing with C strings.
* gnat_ugn.texi: Regenerate.
2017-11-09 Jerome Lambourg <lambourg@adacore.com>
* system-qnx-aarch64.ads: Fix the priority constants.
* s-osinte__qnx.ads: Fix constants for handling the locking protocols
and scheduling.
* s-osinte__qnx.adb: New file , prevents the use of priority 0 that
corresponds to an idle priority on QNX.
2017-11-09 Piotr Trojanek <trojanek@adacore.com>
* sem_prag.adb, sem_util.adb, sem_elab.adb: Fix minor typos in
comments.
From-SVN: r254566
2017-11-09 Piotr Trojanek <trojanek@adacore.com>
* lib-xref-spark_specific.adb (Add_SPARK_Xrefs): Ignore loop parameters
in expression funtions that are expanded into variables.
2017-11-09 Piotr Trojanek <trojanek@adacore.com>
* sem_util.adb: Minor whitespace cleanup.
2017-11-09 Jerome Lambourg <lambourg@adacore.com>
* libgnarl/s-taprop__qnx.adb: Refine aarch64-qnx. Use the POSIX
s-taprop version rather than a custom one.
* sigtramp-qnx.c (aarch64-qnx): Implement the signal trampoline.
From-SVN: r254563
2017-11-09 Martin Liska <mliska@suse.cz>
PR gcov-profile/48463
* coverage.c (coverage_begin_function): Output also end locus
of a function and information whether the function is
artificial.
* gcov-dump.c (tag_function): Parse and print the information.
* gcov.c (INCLUDE_MAP): Add include.
(INCLUDE_SET): Likewise.
(struct line_info): Move earlier in the source file because
of vector<line_info> in function_info structure.
(line_info::line_info): Likewise.
(line_info::has_block): Likewise.
(struct source_info): Add new member index.
(source_info::get_functions_at_location): New function.
(function_info::group_line_p): New function.
(output_intermediate_line): New function.
(output_intermediate_file): Use the mentioned function.
(struct function_start): New.
(struct function_start_pair_hash): Likewise.
(process_file): Add code that identifies group functions.
Assign lines either to global or function scope.
(generate_results): Skip artificial functions.
(find_source): Assign index for each source file.
(read_graph_file): Read new flag artificial and end_line.
(add_line_counts): Assign it either to global of function scope.
(accumulate_line_counts): Isolate core of the function to
accumulate_line_info and call it for both function and global
scope lines.
(accumulate_line_info): New function.
(output_line_beginning): Fix GNU coding style.
(print_source_line): New function.
(output_line_details): Likewise.
(output_function_details): Likewise.
(output_lines): Iterate both source (global) scope and function
scope.
(struct function_line_start_cmp): New class.
* doc/gcov.texi: Reflect changes in documentation.
From-SVN: r254562
PR debug/82837
* dwarf2out.c (const_ok_for_output_1): Reject NEG in addition to NOT.
(mem_loc_descriptor): Handle (const (neg (...))) as (neg (const (...)))
and similarly for not instead of neg.
* gcc.dg/debug/dwarf2/pr82837.c: New test.
From-SVN: r254561
This patch adds a -mforce-indirect-call option to force all calls
or tail calls on x86_64 between functions to indirect. This is similar to the
large code model, but doesn't affect jumps inside functions, so has much
less run time overhead.
This is useful with Intel Processor Trace (PT). PT has precise timing
for indirect calls/jumps, but not for direct ones. So if we can force
them to indirect it allows to time every function relatively accurately
(minus the overhead of the indirect branch)
Without this short functions often don't see a timing update and cannot
be measured.
The timing requires at least Skylake or Goldmont based CPUs.
I made it an option. Originally I tried to make it a new code model,
but since it can be combined with other code models (medium, pic, kernel
etc.) this turned out to be too many combinations.
For example with gcc. This first column is a ns time stamp for the
functions.
$ perf record -e intel_pt/noretcomp=1,cyc=1,cyc_thresh=1/u ./cc1 -O3 hello.c
$ perf script --itrace=cr -F callindent,time,sym,addr --ns | sed -n 180000,182000p | less
...
1184596.432756920: build_int_cst => 79c9de c_common_nodes_and_builtins
1184596.432756921: tree_cons => ee2080 tree_cons
1184596.432756938: ggc_internal_alloc => 80f3e0 ggc_internal_alloc
1184596.432756951: memset@plt => 598af0 memset@plt
1184596.432756967: __memset_avx2_unaligned_erms => 80f605 ggc_internal_alloc
1184596.432756969: ggc_internal_alloc => ee20a2 tree_cons
1184596.432756973: tree_cons => 79c9f4 c_common_nodes_and_builtins
1184596.432756974: build_int_cst => ef9a40 build_int_cst
1184596.432756996: wide_int_to_tree => ef93a0 wide_int_to_tree
1184596.432757000: wi::force_to_size => f48f70 wi::force_to_size
1184596.432757005: canonize => ef94de wide_int_to_tree
1184596.432757021: get_int_cst_ext_nunits => ee1960 get_int_cst_ext_nunits
1184596.432757026: get_int_cst_ext_nunits => ef94fe wide_int_to_tree
1184596.432757042: tree_int_cst_elt_check => 83e310 tree_int_cst_elt_check
1184596.432757044: tree_int_cst_elt_check => ef9761 wide_int_to_tree
1184596.432757046: wide_int_to_tree => ef9a9b build_int_cst
gcc/:
2017-11-08 Andi Kleen <ak@linux.intel.com>
* config/i386/i386.opt: Add -mforce-indirect-call.
* config/i386/predicates.md: Check for flag_force_indirect_call.
* doc/invoke.texi: Document -mforce-indirect-call
gcc/testsuite/:
2017-11-08 Andi Kleen <ak@linux.intel.com>
* gcc.target/i386/force-indirect-call-1.c: New test.
* gcc.target/i386/force-indirect-call-2.c: New test.
* gcc.target/i386/force-indirect-call-3.c: New test.
From-SVN: r254560
2017-11-08 Steven G. Kargl <kargl@kgcc.gnu.org>
PR Fortran/82841
* simplify.c(gfc_simplify_transfer): Do not dereference a NULL pointer.
Unwrap a short line.
2017-11-08 Steven G. Kargl <kargl@kgcc.gnu.org>
PR Fortran/82841
* gfortran.dg/transfer_simplify_11.f90: new test.
From-SVN: r254555
- This build error was indroduced by "RISC-V: Implement movmemsi"
and "RISC-V: Support -mpreferred-stack-boundary flag"
gcc/ChangeLog
2017-11-08 Kito Cheng <kito.cheng@gmail.com>
* config/riscv/riscv-protos.h (riscv_slow_unaligned_access_p):
New extern.
(MOVE_RATIO): Use riscv_slow_unaligned_access_p.
config/riscv/riscv.c (predict.h): New include.
(riscv_slow_unaligned_access_p): No longer static.
(riscv_block_move_straight): Add require.
config/riscv/riscv-protos.h (riscv_hard_regno_nregs): Delete.
From-SVN: r254554
2017-11-08 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/82884
* arith.c (gfc_hollerith2character): Clear pad.
2017-11-08 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/82884
* gfortran.dg/hollerith_character_array_constructor.f90: New test.
From-SVN: r254553
On top of the previous vec_merge simplifications [1] we can add this pattern to perform
a store of a vec_concat of two 64-bit values in distinct registers as an STP.
This avoids constructing such a vector explicitly in a register and storing it as
a Q register.
This way for the code in the testcase we can generate:
construct_lane_1:
ldp d1, d0, [x0]
fmov d3, 1.0e+0
fmov d2, 2.0e+0
fadd d4, d1, d3
fadd d5, d0, d2
stp d4, d5, [x1, 32]
ret
construct_lane_2:
ldp x2, x0, [x0]
add x3, x2, 1
add x4, x0, 2
stp x3, x4, [x1, 32]
ret
instead of the current:
construct_lane_1:
ldp d0, d1, [x0]
fmov d3, 1.0e+0
fmov d2, 2.0e+0
fadd d0, d0, d3
fadd d1, d1, d2
dup v0.2d, v0.d[0]
ins v0.d[1], v1.d[0]
str q0, [x1, 32]
ret
construct_lane_2:
ldp x2, x3, [x0]
add x0, x2, 1
add x2, x3, 2
dup v0.2d, x0
ins v0.d[1], x2
str q0, [x1, 32]
ret
Bootstrapped and tested on aarch64-none-linux-gnu.
[1] https://gcc.gnu.org/ml/gcc-patches/2017-06/msg00272.htmlhttps://gcc.gnu.org/ml/gcc-patches/2017-06/msg00273.htmlhttps://gcc.gnu.org/ml/gcc-patches/2017-06/msg00274.html
* config/aarch64/aarch64-simd.md (store_pair_lanes<mode>):
New pattern.
* config/aarch64/constraints.md (Uml): New constraint.
* config/aarch64/predicates.md (aarch64_mem_pair_lanes_operand): New
predicate.
* gcc.target/aarch64/store_v2vec_lanes.c: New test.
From-SVN: r254551
Another vec_merge simplification that's missing from simplify-rtx.c is transforming
a vec_merge of two vec_duplicates. For example:
(set (reg:V2DF 80)
(vec_merge:V2DF (vec_duplicate:V2DF (reg:DF 84))
(vec_duplicate:V2DF (reg:DF 81))
(const_int 2)))
Can be transformed into the simpler:
(set (reg:V2DF 80)
(vec_concat:V2DF (reg:DF 81)
(reg:DF 84)))
I believe this should always be beneficial.
I'm still looking into finding a small testcase demonstrating this, but on aarch64 SPEC
I've seen this eliminate some really bizzare codegen where GCC was generating nonsense like:
ldr q18, [sp, 448]
ins v18.d[0], v23.d[0]
ins v18.d[1], v22.d[0]
With q18 being pushed and popped off the stack in the prologue and epilogue of the function!
These are large files from SPEC that I haven't been able to analyse yet as to why GCC even attempts
to do that, but with this patch it doesn't try to load a register and overwrite all its lanes.
This patch shaves off about 5k of code size from zeusmp on aarch64 at -O3, so I believe it's a good
thing to do.
* simplify-rtx.c (simplify_ternary_operation): Simplify vec_merge
of two vec_duplicates into a vec_concat.
From-SVN: r254550
Another vec_merge simplification that's missing is transforming:
(vec_merge (vec_duplicate x) (vec_concat (y) (z)) (const_int N))
into
(vec_concat x z) if N == 1 (0b01) or
(vec_concat y x) if N == 2 (0b10)
For the testcase in this patch on aarch64 this allows us to try matching during combine the pattern:
(set (reg:V2DI 78 [ x ])
(vec_concat:V2DI
(mem:DI (reg/v/f:DI 76 [ y ]) [1 *y_4(D)+0 S8 A64])
(mem:DI (plus:DI (reg/v/f:DI 76 [ y ])
(const_int 8 [0x8])) [1 MEM[(long long int *)y_4(D) + 8B]+0 S8 A64])))
rather than the more complex:
(set (reg:V2DI 78 [ x ])
(vec_merge:V2DI (vec_duplicate:V2DI (mem:DI (plus:DI (reg/v/f:DI 76 [ y ])
(const_int 8 [0x8])) [1 MEM[(long long int *)y_4(D) + 8B]+0 S8 A64]))
(vec_duplicate:V2DI (mem:DI (reg/v/f:DI 76 [ y ]) [1 *y_4(D)+0 S8 A64]))
(const_int 2 [0x2])))
We don't actually have an aarch64 pattern for the simplified version above, but it's a simple enough
form to add, so this patch adds such a pattern that performs a concatenated load of two 64-bit vectors
in adjacent memory locations as a single Q-register LDR. The new aarch64 pattern is needed to demonstrate
the effectiveness of the simplify-rtx change, so I've kept them together as one patch.
Now for the testcase in the patch we can generate:
construct_lanedi:
ldr q0, [x0]
ret
construct_lanedf:
ldr q0, [x0]
ret
instead of:
construct_lanedi:
ld1r {v0.2d}, [x0]
ldr x0, [x0, 8]
ins v0.d[1], x0
ret
construct_lanedf:
ld1r {v0.2d}, [x0]
ldr d1, [x0, 8]
ins v0.d[1], v1.d[0]
ret
The new memory constraint Utq is needed because we need to allow only the Q-register addressing modes but
the MEM expressions in the RTL pattern have 64-bit vector modes, and if we don't constrain them they will
allow the D-register addressing modes during register allocation/address mode selection, which will produce
invalid assembly.
Bootstrapped and tested on aarch64-none-linux-gnu.
* simplify-rtx.c (simplify_ternary_operation, VEC_MERGE):
Simplify vec_merge of vec_duplicate and vec_concat.
* config/aarch64/constraints.md (Utq): New constraint.
* config/aarch64/aarch64-simd.md (load_pair_lanes<mode>): New
define_insn.
* gcc.target/aarch64/load_v2vec_lanes_1.c: New test.
From-SVN: r254549
I'm trying to improve some of the RTL-level handling of vector lane operations on aarch64 and that
involves dealing with a lot of vec_merge operations. One simplification that I noticed missing
from simplify-rtx are combinations of vec_merge with vec_duplicate.
In this particular case:
(vec_merge (vec_duplicate (X)) (const_vector [A, B]) (const_int N))
which can be replaced with
(vec_concat (X) (B)) if N == 1 (0b01) or
(vec_concat (A) (X)) if N == 2 (0b10).
For the aarch64 testcase in this patch this simplifications allows us to try to combine:
(set (reg:V2DI 77 [ x ])
(vec_concat:V2DI (mem:DI (reg:DI 0 x0 [ y ]) [1 *y_3(D)+0 S8 A64])
(const_int 0 [0])))
instead of the more complex:
(set (reg:V2DI 77 [ x ])
(vec_merge:V2DI (vec_duplicate:V2DI (mem:DI (reg:DI 0 x0 [ y ]) [1 *y_3(D)+0 S8 A64]))
(const_vector:V2DI [
(const_int 0 [0])
(const_int 0 [0])
])
(const_int 1 [0x1])))
For the simplified form above we already have an aarch64 pattern: *aarch64_combinez<mode> which
is missing a DI/DFmode version due to an oversight, so this patch extends that pattern as well to
use the VDC mode iterator that includes DI and DFmode (as well as V2HF which VD_BHSI was missing).
The aarch64 hunk is needed to see the benefit of the simplify-rtx.c hunk, so I didn't split them
into separate patches.
Before this for the testcase we'd generate:
construct_lanedi:
movi v0.4s, 0
ldr x0, [x0]
ins v0.d[0], x0
ret
construct_lanedf:
movi v0.2d, 0
ldr d1, [x0]
ins v0.d[0], v1.d[0]
ret
but now we can generate:
construct_lanedi:
ldr d0, [x0]
ret
construct_lanedf:
ldr d0, [x0]
ret
Bootstrapped and tested on aarch64-none-linux-gnu.
* simplify-rtx.c (simplify_ternary_operation, VEC_MERGE):
Simplify vec_merge of vec_duplicate and const_vector.
* config/aarch64/predicates.md (aarch64_simd_or_scalar_imm_zero):
New predicate.
* config/aarch64/aarch64-simd.md (*aarch64_combinez<mode>): Use VDC
mode iterator. Update predicate on operand 1 to
handle non-const_vec constants. Delete constraints.
(*aarch64_combinez_be<mode>): Likewise for operand 2.
* gcc.target/aarch64/construct_lane_zero_1.c: New test.
From-SVN: r254548
2017-11-08 Piotr Trojanek <trojanek@adacore.com>
* lib-xref.ads, lib-xref-spark_specific.adb
(Traverse_Compilation_Unit): Move declaration to package body.
2017-11-08 Hristian Kirtchev <kirtchev@adacore.com>
* exp_spark.adb (Expand_SPARK_N_Object_Renaming_Declaration): Obtain
the type of the renaming from its defining entity, rather then the
subtype mark as there may not be a subtype mark.
2017-11-08 Jerome Lambourg <lambourg@adacore.com>
* adaint.c, s-oscons-tmplt.c, init.c, libgnat/system-qnx-aarch64.ads,
libgnarl/a-intnam__qnx.ads, libgnarl/s-intman__qnx.adb,
libgnarl/s-osinte__qnx.ads, libgnarl/s-qnx.ads,
libgnarl/s-taprop__qnx.adb, s-oscons-tmplt.c, sigtramp-qnx.c,
terminals.c: Initial port of GNAT for aarch64-qnx
2017-11-08 Elisa Barboni <barboni@adacore.com>
* exp_util.adb (Find_DIC_Type): Move...
* sem_util.ads, sem_util.adb (Find_DIC_Type): ... here.
2017-11-08 Justin Squirek <squirek@adacore.com>
* sem_res.adb (Resolve_Allocator): Add info messages corresponding to
the owner and corresponding coextension.
2017-11-08 Ed Schonberg <schonberg@adacore.com>
* sem_aggr.adb (Resolve_Delta_Aggregate): Divide into the
following separate procedures.
(Resolve_Delta_Array_Aggregate): Previous code form
Resolve_Delta_Aggregate.
(Resolve_Delta_Record_Aggregate): Extend previous code to cover latest
ARG decisions on the legality rules for delta aggregates for records:
in the case of a variant record, components from different variants
cannot be specified in the delta aggregate, and this must be checked
statically.
From-SVN: r254547
2017-11-08 Piotr Trojanek <trojanek@adacore.com>
* spark_xrefs.ads (SPARK_Scope_Record): Remove Spec_File_Num and
Spec_Scope_Num components.
* spark_xrefs.adb (dspark): Skip pretty-printing to removed components.
* lib-xref-spark_specific.adb (Add_SPARK_Scope): Skip initialization of
removed components.
(Collect_SPARK_Xrefs): Skip setting proper values of removed
components.
2017-11-08 Gary Dismukes <dismukes@adacore.com>
* exp_ch4.adb (Expand_N_Type_Conversion): Add test that the selector
name is a discriminant in check for unconditional accessibility
violation within instances.
From-SVN: r254545
gcc/ada/
2017-11-08 Piotr Trojanek <trojanek@adacore.com>
* lib-xref-spark_specific.adb (Add_SPARK_Xrefs): Remove special-case
for constants (with variable input).
(Is_Constant_Object_Without_Variable_Input): Remove.
2017-11-08 Hristian Kirtchev <kirtchev@adacore.com>
* exp_ch9.adb, sem_disp.adb, sem_util.adb: Minor reformatting.
2017-11-08 Piotr Trojanek <trojanek@adacore.com>
* spark_xrefs.ads (Rtype): Remove special-casing of constants for SPARK
cross-references.
(dspark): Remove hardcoded table bound.
2017-11-08 Ed Schonberg <schonberg@adacore.com>
* sem_ch4.adb (Analyze_Aggregate): For Ada2020 delta aggregates, use
the type of the base of the construct to determine the type (or
candidate interpretations) of the delta aggregate. This allows the
construct to appear in a context that expects a private extension.
* sem_res.adb (Resolve): Handle properly a delta aggregate with an
overloaded base.
gcc/testsuite/
2017-11-08 Ed Schonberg <schonberg@adacore.com>
* gnat.dg/delta_aggr.adb: New testcase.
From-SVN: r254544
2017-11-08 Piotr Trojanek <trojanek@adacore.com>
* spark_xrefs.ads (SPARK_Xref_Record): Replace file and scope indices
with Entity_Id of the reference.
* spark_xrefs.adb (dspark): Adapt pretty-printing routine.
* lib-xref-spark_specific.adb (Add_SPARK_Xrefs): Store Entity_Id of the
reference, not the file and scope indices.
2017-11-08 Arnaud Charlet <charlet@adacore.com>
* errout.ads (Current_Node): New.
* errout.adb (Error_Msg): Use Current_Node.
* par-ch6.adb, par-ch7.adb, par-ch9.adb, par-util.adb: Set Current_Node
when relevant.
* style.adb: Call Error_Msg_N when possible.
From-SVN: r254543
2017-11-08 Piotr Trojanek <trojanek@adacore.com>
* spark_xrefs.ads (SPARK_Scope_Record): Rename Scope_Id component to
Entity.
* lib-xref-spark_specific.adb, spark_xrefs.adb: Propagate renaming of
the Scope_Id record component.
From-SVN: r254542
2017-11-08 Piotr Trojanek <trojanek@adacore.com>
* spark_xrefs.ads (SPARK_Xref_Record): Referenced object is now
represented by Entity_Id.
(SPARK_Scope_Record): Referenced scope (e.g. subprogram) is now
represented by Entity_Id; this information is not repeated as
Scope_Entity.
(Heap): Moved from lib-xref-spark_specific.adb, to reside next to
Name_Of_Heap_Variable.
* spark_xrefs.adb (dspark): Adapt debug routine to above changes in
data types.
* lib-xref-spark_specific.adb: Adapt routines for populating SPARK
scope and xrefs tables to above changes in data types.
2017-11-08 Justin Squirek <squirek@adacore.com>
* sem_ch8.adb (Mark_Use_Clauses): Add condition to always mark the
primitives of generic actuals.
(Mark_Use_Type): Add recursive call to properly mark class-wide type's
base type clauses as per ARM 8.4 (8.2/3).
2017-11-08 Ed Schonberg <schonberg@adacore.com>
* sem_ch6.adb (Analyze_Generic_Subprobram_Body): Validate
categorization dependency of the body, as is done for non-generic
units.
(New_Overloaded_Entity, Visible_Part_Type): Remove linear search
through declarations (Simple optimization, no behavior change).
From-SVN: r254539
PR tree-optimization/78821
* gimple-ssa-store-merging.c (struct store_operand_info): Add bit_not_p
data member.
(store_operand_info::store_operand_info): Initialize it to false.
(pass_store_merging::terminate_all_aliasing_chains): Rewritten to use
ref_maybe_used_by_stmt_p and stmt_may_clobber_ref_p on lhs of each
store in the group, and if chain_info is non-NULL, to ignore altogether
that chain.
(compatible_load_p): Fail if bit_not_p does not match.
(imm_store_chain_info::output_merged_store): Handle bit_not_p loads.
(handled_load): Fill in bit_not_p. Handle BIT_NOT_EXPR.
(pass_store_merging::process_store): Adjust
terminate_all_aliasing_chains calls to pass NULL in all current spots,
call terminate_all_aliasing_chains newly when adding a store into
a chain with non-NULL chain_info.
* gcc.dg/store_merging_2.c: Expect 3 store mergings instead of 2.
* gcc.dg/store_merging_13.c (f7, f8, f9, f10, f11, f12, f13): New
functions.
(main): Test also those. Expect 13 store mergings instead of 6.
* gcc.dg/store_merging_14.c (f7, f8, f9): New functions.
(main): Test also those. Expect 9 store mergings instead of 6.
From-SVN: r254536
2017-11-08 Piotr Trojanek <trojanek@adacore.com>
* lib-xref-spark_specific.adb (Add_SPARK_Xrefs): Remove dead check for
empty entities.
From-SVN: r254535
Simplify aarch64_can_eliminate - if we need a frame pointer, we must
eliminate to HARD_FRAME_POINTER_REGNUM. Rather than hardcoding all
combinations from the ELIMINABLE_REGS list, just do the correct check.
gcc/
* config/aarch64/aarch64.c (aarch64_can_eliminate): Simplify logic.
From-SVN: r254534
To implement -fomit-leaf-frame-pointer, there are 2 places where we need
to check whether we have to use a frame chain (since register allocation
may allocate LR in a leaf function that omits the frame pointer, but if
LR is spilled we must emit a frame chain). To simplify this do not force
frame_pointer_needed via aarch64_frame_pointer_required, but enable the
frame chain in aarch64_layout_frame. Now aarch64_frame_pointer_required
can be removed and aarch64_can_eliminate is simplified.
gcc/
* config/aarch64/aarch64.c (aarch64_frame_pointer_required)
Remove.
(aarch64_layout_frame): Initialise emit_frame_chain.
(aarch64_can_eliminate): Remove omit leaf frame pointer code.
(TARGET_FRAME_POINTER_REQUIRED): Remove define.
testsuite/
* gcc.target/aarch64/dwarf-cfa-reg.c: Update.
From-SVN: r254533
gcc/ada/
2017-11-08 Javier Miranda <miranda@adacore.com>
* sem_disp.adb (Is_Inherited_Public_Operation): Extend the
functionality of this routine to handle multiple levels of derivations.
2017-11-08 Hristian Kirtchev <kirtchev@adacore.com>
* einfo.adb: Elist36 is now used as Nested_Scenarios.
(Nested_Scenarios): New routine.
(Set_Nested_Scenarios): New routine.
(Write_Field36_Name): New routine.
* einfo.ads: Add new attribute Nested_Scenarios along with occurrences
in entities.
(Nested_Scenarios): New routine along with pragma Inline.
(Set_Nested_Scenarios): New routine along with pragma Inline.
* sem_elab.adb (Find_And_Process_Nested_Scenarios): New routine.
(Process_Nested_Scenarios): New routine.
(Traverse_Body): When a subprogram body is traversed for the first
time, find, save, and process all suitable scenarios found within.
Subsequent traversals of the same subprogram body utilize the saved
scenarios.
2017-11-08 Piotr Trojanek <trojanek@adacore.com>
* lib-xref-spark_specific.adb (Add_SPARK_Scope): Remove detection of
protected operations.
(Add_SPARK_Xrefs): Simplify detection of empty entities.
* get_spark_xrefs.ads, get_spark_xrefs.adb, put_spark_xrefs.ads,
put_spark_xrefs.adb, spark_xrefs_test.adb: Remove code for writing,
reading and testing SPARK cross-references stored in the ALI files.
* lib-xref.ads (Output_SPARK_Xrefs): Remove.
* lib-writ.adb (Write_ALI): Do not write SPARK cross-references to the
ALI file.
* spark_xrefs.ads, spark_xrefs.adb (pspark): Remove, together
with description of the SPARK xrefs ALI format.
* gcc-interface/Make-lang.in (GNAT_ADA_OBJS): Remove get_spark_refs.o
and put_spark_refs.o.
2017-11-08 Hristian Kirtchev <kirtchev@adacore.com>
* exp_ch4.adb (Apply_Accessibility_Check): Do not finalize the object
when the associated access type is subject to pragma
No_Heap_Finalization.
* exp_intr.adb (Expand_Unc_Deallocation): Use the available view of the
designated type in case it comes from a limited withed unit.
gcc/testsuite/
2017-11-08 Javier Miranda <miranda@adacore.com>
* gnat.dg/overriding_ops2.adb, gnat.dg/overriding_ops2.ads,
gnat.dg/overriding_ops2_pkg.ads, gnat.dg/overriding_ops2_pkg-high.ads:
New testcase.
From-SVN: r254532
2017-11-08 Hristian Kirtchev <kirtchev@adacore.com>
* exp_ch3.adb (Expand_N_Object_Declaration): Save and restore relevant
SPARK-related flags. Add ??? comment.
* exp_util.adb (Insert_Actions): Add an entry for node
N_Variable_Reference_Marker.
* sem.adb (Analyze): Add an entry for node N_Variable_Reference_Marker.
* sem_ch8.adb (Find_Direct_Name): Add constant Is_Assignment_LHS. Build
and record a variable reference marker for the current name.
(Find_Expanded_Name): Add constant Is_Assignment_LHS. Build and record
a variable reference marker for the current name.
* sem_elab.adb (Build_Variable_Reference_Marker): New routine.
(Extract_Variable_Reference_Attributes): Reimplemented.
(Info_Scenario): Add output for variable references and remove output
for variable reads.
(Info_Variable_Read): Removed.
(Info_Variable_Reference): New routine.
(Is_Suitable_Scenario): Variable references are now suitable scenarios
while variable reads are not.
(Output_Active_Scenarios): Add output for variable references and
remove output for variable reads.
(Output_Variable_Read): Removed.
(Output_Variable_Reference): New routine.
(Process_Variable_Read): Removed.
(Process_Variable_Reference): New routine.
(Process_Variable_Reference_Read): New routine.
* sem_elab.ads (Build_Variable_Reference_Marker): New routine.
* sem_res.adb (Resolve_Actuals): Build and record a variable reference
marker for the current actual.
* sem_spark.adb (Check_Node): Add an entry for node
N_Variable_Reference_Marker.
* sem_util.adb (Within_Subprogram_Call): Moved to the library level.
* sem_util.ads (Within_Subprogram_Call): Moved to the library level.
* sinfo.adb (Is_Read): New routine.
(Is_Write): New routine.
(Target): Updated to handle variable reference markers.
(Set_Is_Read): New routine.
(Set_Is_Write): New routine.
(Set_Target): Updated to handle variable reference markers.
* sinfo.ads: Add new attributes Is_Read and Is_Write along with
occurrences in nodes. Update attribute Target. Add new node
kind N_Variable_Reference_Marker.
(Is_Read): New routine along with pragma Inline.
(Is_Write): New routine along with pragma Inline.
(Set_Is_Read): New routine along with pragma Inline.
(Set_Is_Write): New routine along with pragma Inline.
* sprint.adb (Sprint_Node_Actual): Add an entry for node
N_Variable_Reference_Marker.
From-SVN: r254531
2017-11-08 Yannick Moy <moy@adacore.com>
* sem_ch8.adb (Use_One_Type, Update_Use_Clause_Chain): Do not report
about unused use-type or use-package clauses inside inlined bodies.
2017-11-08 Hristian Kirtchev <kirtchev@adacore.com>
* sem_elab.adb (Ensure_Prior_Elaboration): Add new parameter
In_Partial_Fin along with a comment on its usage. Do not guarantee the
prior elaboration of a unit when the need came from a partial
finalization context.
(In_Initialization_Context): Relocated to Process_Call.
(Is_Partial_Finalization_Proc): New routine.
(Process_Access): Add new parameter In_Partial_Fin along with a comment
on its usage.
(Process_Activation_Call): Add new parameter In_Partial_Fin along with
a comment on its usage.
(Process_Activation_Conditional_ABE_Impl): Add new parameter
In_Partial_Fin along with a comment on its usage. Do not emit any ABE
diagnostics when the activation occurs in a partial finalization
context.
(Process_Activation_Guaranteed_ABE_Impl): Add new parameter
In_Partial_Fin along with a comment on its usage.
(Process_Call): Add new parameter In_Partial_Fin along with a comment
on its usage. A call is within a partial finalization context when it
targets a finalizer or primitive [Deep_]Finalize, and the call appears
in initialization actions. Pass this information down to the recursive
steps of the Processing phase.
(Process_Call_Ada): Add new parameter In_Partial_Fin along with a
comment on its usage. Remove the guard which suppresses the generation
of implicit Elaborate[_All] pragmas. This is now done in
Ensure_Prior_Elaboration.
(Process_Call_Conditional_ABE): Add new parameter In_Partial_Fin along
with a comment on its usage. Do not emit any ABE diagnostics when the
call occurs in a partial finalization context.
(Process_Call_SPARK): Add new parameter In_Partial_Fin along with a
comment on its usage.
(Process_Instantiation): Add new parameter In_Partial_Fin along with a
comment on its usage.
(Process_Instantiation_Ada): Add new parameter In_Partial_Fin along
with a comment on its usage.
(Process_Instantiation_Conditional_ABE): Add new parameter
In_Partial_Fin along with a comment on its usage. Do not emit any ABE
diagnostics when the instantiation occurs in a partial finalization
context.
(Process_Instantiation_SPARK): Add new parameter In_Partial_Fin along
with a comment on its usage.
(Process_Scenario): Add new parameter In_Partial_Fin along with a
comment on its usage.
(Process_Single_Activation): Add new parameter In_Partial_Fin along
with a comment on its usage.
(Traverse_Body): Add new parameter In_Partial_Fin along with a comment
on its usage.
2017-11-08 Arnaud Charlet <charlet@adacore.com>
* sem_ch13.adb: Add optional parameter to Error_Msg.
2017-11-08 Jerome Lambourg <lambourg@adacore.com>
* fname.adb (Is_Internal_File_Name): Do not check the 8+3 naming schema
for the Interfaces.* hierarchy as longer unit names are now allowed.
2017-11-08 Arnaud Charlet <charlet@adacore.com>
* sem_util.adb (Subprogram_Name): Emit sloc for the enclosing
subprogram as well. Support more cases of entities.
(Append_Entity_Name): Add some defensive code.
From-SVN: r254528
2017-11-08 Martin Liska <mliska@suse.cz>
* gcc.dg/tree-ssa/vrp101.c: Update expected pattern as
frequencies are not longer printed in dump output.
From-SVN: r254525
PR c++/82835
* cp-gimplify.c (cxx_omp_clause_apply_fn): For methods pass i - 1 to
convert_default_arg instead of i.
* testsuite/libgomp.c++/pr82835.C: New test.
From-SVN: r254511
PR target/82855
* config/i386/i386.md (SWI1248_AVX512BWDQ2_64): New mode iterator.
(*cmp<mode>_ccz_1): New insn with $k alternative.
* gcc.target/i386/avx512dq-pr82855.c: New test.
From-SVN: r254510
