gcc/ada/
* exp_ch5.adb (Expand_General_Case_Statement): Add new function
Else_Statements to handle the case of invalid data analogously
to how it is handled when casing on a discrete value.
* sem_case.adb (Has_Static_Discriminant_Constraint): A new
Boolean-valued function.
(Composite_Case_Ops.Scalar_Part_Count): Include discriminants
when traversing components.
(Composite_Case_Ops.Choice_Analysis.Traverse_Discrete_Parts):
Include discriminants when traversing components; the component
range for a constrained discriminant is a single value.
(Composite_Case_Ops.Choice_Analysis.Parse_Choice): Eliminate
Done variable and modify how Next_Part is computed so that it is
always correct (as opposed to being incorrect when Done is
True). This includes changes in Update_Result (a local
procedure). Add new local procedure
Update_Result_For_Box_Component and call it not just for box
components but also for "missing" components (components
associated with an inactive variant).
(Check_Choices.Check_Composite_Case_Selector.Check_Component_Subtype):
Instead of disallowing all discriminated component types, allow
those that are unconstrained or statically constrained. Check
discriminant subtypes along with other component subtypes.
* doc/gnat_rm/implementation_defined_pragmas.rst: Update
documentation to reflect current implementation status.
* gnat_rm.texi: Regenerate.
gcc/ada/
* repinfo.ads (JSON output format): Document adjusted key name.
* repinfo.adb (List_Record_Layout): Use Original_Record_Component
if the normalized position of the component is not known.
(List_Structural_Record_Layout): Rename Outer_Ent parameter into
Ext_End and add Ext_Level parameter. In an extension, if the parent
subtype has static discriminants, call List_Record_Layout on it.
Output "parent_" prefixes before "variant" according to Ext_Level.
Adjust recursive calls throughout the procedure.
gcc/ada/
* sem_ch13.adb (Resolve_Aspect_Expressions): Use the same
processing for Predicate, Static_Predicate and
Dynamic_Predicate. Do not build the predicate function spec.
Update comments.
(Resolve_Name): Only reset Entity when necessary to avoid
spurious visibility errors.
(Check_Aspect_At_End_Of_Declarations): Handle consistently all
Predicate aspects.
* sem_ch3.adb (Analyze_Subtype_Declaration): Fix handling of
private types with predicates.
gcc/ada/
* sem_util.ads (Type_Access_Level): Add new optional parameter
Assoc_Ent.
* sem_util.adb (Accessibility_Level): Treat access discriminants
the same as components when the restriction
No_Dynamic_Accessibility_Checks is enabled.
(Deepest_Type_Access_Level): Remove exception for
Debug_Flag_Underscore_B when returning the result of
Type_Access_Level in the case where
No_Dynamic_Accessibility_Checks is active.
(Function_Call_Or_Allocator_Level): Correctly calculate the
level of Expr based on its containing subprogram instead of
using Current_Subprogram.
* sem_res.adb (Valid_Conversion): Add actual for new parameter
Assoc_Ent in call to Type_Access_Level, and add test of
No_Dynamic_Accessibility_Checks_Enabled to ensure that static
accessibility checks are performed for all anonymous access type
conversions.
This is the build failure on Windows with binutils for which GNU as accepts
the --gdwarf-5 switch but GNU ld generates broken binaries with DWARF 5.
We already have the HAVE_LD_BROKEN_PE_DWARF5 kludge to disable DWARF 5 in
this case but it only tames the DWARF version in the compiler, so the
driver still passes --gdwarf-5 when invoked on an assembly file with -g.
gcc/
PR target/101377
* gcc.c (ASM_DEBUG_DWARF_OPTION): Set again to --gdwarf2 in
the case where HAVE_AS_WORKING_DWARF_N_FLAG is not defined
and HAVE_LD_BROKEN_PE_DWARF5 is defined.
In addition to the obvious cut-n-pasto where *udivmodsi4_pow2_zext_2
never matches, limit the range of the immediate operand to prevent
out of range immediate operand of AND instruction.
Found by inspection, the patterns rarely match (if at all), since
tree optimizers do the transformation before RTL is generated. But
according to the comment above *udivmod<mode>4_pow2, the constant can
materialize after expansion, so leave these patterns around for now.
2021-07-09 Uroš Bizjak <ubizjak@gmail.com>
gcc/
* config/i386/i386.md (*udivmodsi4_pow2_zext_1): Limit the
log2 range of operands[3] to [1,31].
(*udivmodsi4_pow2_zext_2): Ditto. Correct insn RTX pattern.
Noticed multiple groups split in HTML documentation where example
was written in two columns:
""
"
(define_expand "addsi3" {
[(match_operand:SI 0 "register_operand" "") handle_add (...
(match_operand:SI 1 "register_operand" "") DONE;
(match_operand:SI 2 "register_operand" "")] }")
The change uses single @group/@endgroup to prevent such break.
gcc/ChangeLog:
* doc/md.texi: Don't split @smallexample in multiple @groups.
Previously the idea was gimple_simplify_phiopt would call
resimplify with a NULL sequence but that sometimes fails
even if there was only one statement produced. The cases
where it fails is when there are two simplifications happen.
In the case of the min/max production, the first simplifcation
produces:
(convert (min @1 @2))
And then the convert is removed by a second one. The Min statement
will be in the sequence while the op will be a SSA name. This was
rejected before as could not produce something in the sequence.
So this patch changes the way resimplify is called to always passing
a pointer to the sequence and then decide based on if op is a
SSA_NAME or not.
OK? Bootstrapped and tested on x86_64-linux-gnu.
gcc/ChangeLog:
* tree-ssa-phiopt.c (phiopt_early_allow): Change arguments
to take sequence and gimple_match_op. Accept the case where
op is a SSA_NAME and one statement in the sequence.
Also allow constants.
(gimple_simplify_phiopt): Always pass a sequence to resimplify.
Update call to phiopt_early_allow. Discard the sequence if not
used.
mips.exp does not support -fno-inline, causing the tests return "ERROR:
Unrecognised option: -fno-inline for dg-options ... ".
Use noinline attribute like other mips target tests, to workaround it.
gcc/testsuite/
* gcc.target/mips/cfgcleanup-jalr2.c: Remove -fno-inline and add
__attribute__((noinline)).
* gcc.target/mips/cfgcleanup-jalr3.c: Likewise.
Check if the vector mode is really supported by MSA in certain cases,
instead of testing ISA_HAS_MSA. Simply testing ISA_HAS_MSA can cause
ICE when MSA is enabled besides other MIPS SIMD extensions (notably,
Loongson MMI).
gcc/
PR target/100760
PR target/100761
PR target/100762
* config/mips/mips.c (mips_const_insns): Use MSA_SUPPORTED_MODE_P
instead of ISA_HAS_MSA.
(mips_expand_vec_unpack): Likewise.
(mips_expand_vector_init): Likewise.
gcc/testsuite/
PR target/100760
PR target/100761
PR target/100762
* gcc.target/mips/pr100760.c: New test.
* gcc.target/mips/pr100761.c: New test.
* gcc.target/mips/pr100762.c: New test.
This patch is to add one test case to check if vectorizer
can exploit vector division instrutions newly introduced
by Power10.
gcc/testsuite/ChangeLog:
* gcc.target/powerpc/div-vectorize-1.c: New test.
This patch is to add test cases to check if vectorizer
can exploit vector multiply instrutions on Power, some
of them are supported since Power8, the others are newly
introduced by Power10.
gcc/testsuite/ChangeLog:
* gcc.target/powerpc/mul-vectorize-1.c: New test.
* gcc.target/powerpc/mul-vectorize-2.c: New test.
It sounds plausible that this assert
int f();
static_assert(noexcept(sizeof(f())));
should pass: sizeof produces a std::size_t and its operand is not
evaluated, so it can't throw. noexcept should only evaluate to
false for potentially evaluated operands. Therefore I think that
check_noexcept_r shouldn't walk into operands of sizeof/decltype/
alignof/typeof.
PR c++/101087
gcc/cp/ChangeLog:
* cp-tree.h (unevaluated_p): New.
* except.c (check_noexcept_r): Use it. Don't walk into
unevaluated operands.
gcc/testsuite/ChangeLog:
* g++.dg/cpp0x/noexcept70.C: New test.
The "new" IPA-SRA has a more difficult job than the previous
not-truly-IPA version when identifying situations in which a parameter
passed by reference can be passed into a third function and only thee
converted to one passed by value (and possibly "split" at the same
time).
In order to allow this, two conditions must be fulfilled. First the
call to the third function must happen before any modifications of
memory, because it could change the value passed by reference.
Second, in order to make sure we do not introduce new (invalid)
dereferences, the call must postdominate the entry BB.
The second condition is actually not necessary if the caller function
is also certain to dereference the pointer but the first one must
still hold. Unfortunately, the code making this overriding decision
also happen to trigger when the first condition is not fulfilled.
This is fixed in the following patch.
gcc/ChangeLog:
2021-06-16 Martin Jambor <mjambor@suse.cz>
PR ipa/101066
* ipa-sra.c (class isra_call_summary): New member
m_before_any_store, initialize it in the constructor.
(isra_call_summary::dump): Dump the new field.
(ipa_sra_call_summaries::duplicate): Copy it.
(process_scan_results): Set it.
(isra_write_edge_summary): Stream it.
(isra_read_edge_summary): Likewise.
(param_splitting_across_edge): Only override
safe_to_import_accesses if m_before_any_store is set.
gcc/testsuite/ChangeLog:
2021-06-16 Martin Jambor <mjambor@suse.cz>
PR ipa/101066
* gcc.dg/ipa/pr101066.c: New test.
I've noticed that overriding cpu/arch flags when running the testsuite
can cause this test to fail rather than being skipped because of
incompatible flags combination.
Since the test forces -march=armv7-a, make sure it is accepted in
combination with the current runtestflags.
2021-07-08 Christophe Lyon <christophe.lyon@foss.st.om>
gcc/testsuite/
* gcc.dg/debug/pr57351.c: Require arm_arch_v7a_ok
effective-target.
gcc/ada/
* sem_ch5.adb (Analyze_Target_Name): Properly reject a
Target_Name when it appears outside of an assignment statement,
or within the left-hand side of one.
gcc/ada/
* exp_dbug.adb (Get_Encoded_Name): Do not encode names of discrete
types with custom bounds, except with -fgnat-encodings=all.
* exp_pakd.adb (Create_Packed_Array_Impl_Type): Adjust comment.
gcc/ada/
* comperr.adb (Compiler_Abort): Call Sinput.Unlock, because if
this is called late, then Source_Dump would crash otherwise.
* debug.adb: Correct documentation of the -gnatd.9 switch.
* exp_ch4.adb (Expand_Allocator_Expression): Add a comment.
* exp_ch6.adb: Minor comment fixes. Add assertion.
* exp_ch6.ads (Is_Build_In_Place_Result_Type): Correct comment.
* exp_ch7.adb, checks.ads: Minor comment fixes.
