PR c/8083
* c-typeck.c (build_c_cast): Warn about type punning which breaks
type based aliasing.
testsuite:
* gcc.dg/alias-1.c: New test.
From-SVN: r57698
* stor-layout.c (update_alignment_for_field): New function.
(place_union_field): Use it.
(place_field): Likewise.
* gcc.dg/empty1.C: New test.
From-SVN: r57697
2002-09-30 Andrew Haley <aph@redhat.com>
* flow.c (insn_dead_p): When using non-call-exceptions, don't
eliminate insns that may trap.
* cse.c (insn_live_p): Likewise.
From-SVN: r57688
* config/mips/mips.c (mips16_strings): New variable.
(mips_output_function_epilogue): Clear the SYMBOL_REF_FLAG of every
symbol in mips16_strings. Free the list.
(mips_encode_section_info): Keep track of local strings.
From-SVN: r57685
* longlong.h: Partially synchronize with GMP-4.1 version:
Use i370 definitions also for s390.
Add generic definition of umul_ppmm in terms of smul_ppmm.
[s390] (umul_ppmm): Remove.
[s390] (smul_ppmm): Fix incorrect assembler constraints.
[s390] (smul_ppmm, sdiv_qrnnd): Rename __xx to __x.
From-SVN: r57670
* config/xtensa/xtensa.h (REG_CLASS_NAMES, REG_CLASS_CONTENTS):
Add new RL_REGS register class.
(PREFERRED_RELOAD_CLASS, PREFERRED_OUTPUT_RELOAD_CLASS):
Call xtensa_preferred_reload_class for both input and output reloads.
* config/xtensa/xtensa.c (xtensa_regno_to_class): Use new RL_REGS class.
(xtensa_preferred_reload_class): Handle output reloads; use RL_REGS
instead of either AR_REGS or GR_REGS classes.
(xtensa_secondary_reload_class): Use new RL_REGS class.
* config/xtensa/xtensa-protos.h (xtensa_preferred_reload_class): Update.
From-SVN: r57666
* pa.c (hppa_encode_label): Don't drop '*' from function labels.
(pa_strip_name_encoding): Strip '@' and '*', in that order.
* pa.h (ASM_OUTPUT_LABELREF): Output user_label_prefix except when
there is a '*' prefix in NAME.
From-SVN: r57664
* store-layout.c (finish_record_layout): Add free_p parameter.
(layout_type): Pass it.
* tree.h (finish_record_layout): Update prototype.
* class.c (walk_subobject_offsets): Correct the calculation of
offsets for virtual bases. Correct the counting of array
elements.
(layout_nonempty_base_or_field): Simplify. Correct the
calculation of offsets to be propagated through the binfo
hierarchy.
(build_base_field): Avoid creating a FIELD_DECL for empty bases.
Add the FIELD_DECL to TYPE_FIELDS.
(build_base_fields): Adjust accordingly.
(layout_virtual_bases): Use build_base_field.
(end_of_class): Return a tree, not an integer.
(warn_about_ambiguous_direct_bases): Rename to ...
(warn_about_ambiguous_bases): ... this.
(include_empty_classes): New function.
(layout_class_type): Create an alternative version of the type to
be used when as a base class type. Do not call
finish_record_layout until we are done laying out the class.
* cp-tree.h (lang_type_class): Remove size, size_unit. Add
as_base.
(CLASSTYPE_SIZE): Reimplement.
(CLASSTYPE_SIZE_UNIT): Likewise.
(CLASSTYPE_ALIGN): Likweise.
(CLASSTYPE_USER_ALIGN): Likewise.
(CLASSTYPE_AS_BASE): New macro.
(DECL_INITIALIZED_P): Likewise.
(extract_init): Remove prototype.
(build_forced_zero_init): Rename to ...
(build_zero_init): ... this.
(force_store_init_value): Remove.
* decl.c (obscure_complex_init): Remove.
(duplicate_decls): Copy DECL_INITIALIZED_P.
(check_initializer): Do not leave junk in DECL_INITIAL.
(cp_finish_decl): Handle zero-initialization of entities with
static storage duration.
* expr.c (extract_init): Remove.
* init.c (build_forced_zero_init): Remove.
(build_zero_init): New function.
(build_default_init): Use it.
(build_field_list): Skip FIELD_DECLs for base subobjects.
(push_base_cleanups): Likewise.
* method.c (do_build_assign_ref): Likewise.
(synthesize_exception_spec): Likewise.
* pt.c (tsubst_decl): Clear DECL_INITIALIZED_P.
(regenerate_decl_from_template): To not set DECL_INITIAL for a
static data member whose initialization took place in its class.
(instantiate_decl): Do not pass an initializer to cp_finish_decl
in that situation.
* search.c (dfs_push_decls): Skip FIELD_DECLs for base subobjects.
(dfs_unuse_fields): Likewise.
* tree.c (pod_type_p): Handle error_mark_node.
(zero_init_p): Likewise.
* typeck.c (lookup_anon_field): Skip FIELD_DECLs for base
subobjects.
* typeck2.c (store_init_value): Remove #if 0'd code.
(force_store_init_value): Remove.
(process_init_constructor): Use build_zero_init.
* g++.dg/abi/empty7.C: New test.
* g++.dg/init/pm2.C: Likewise.
From-SVN: r57654
* i386.h (TARGET_CPP_CPU_BUILTINS): Define __SSE_MATH__.
* gcse.c (cprop_jump): Check that the register has not
been modified
(cprop_jump): Likewise.
From-SVN: r57648
* arm.h (BASE_REG_CLASS): Always return LO_REGS for Thumb.
(MODE_BASE_REG_CLASS, case Thumb): Only return BASE_REGS if we know
that we have a SImode access, and only then if reload hasn't completed;
for all other cases, use LO_REGS.
From-SVN: r57644
Steve Ellcey
Jason Thorpe
Mark Mitchell
Richard Henderson
Nick Clifton
Nathan Sidwell
Bo Thorsen
Jim Wilson
Andrew Haley
Richard Sandiford
Bo Thorsen
GCC Administrator
Tom Tromey
Jason Thorpe
Ulrich Weigand
Zack Weinberg
Bob Wilson
John David Anglin
Jan Hubicka
Richard Henderson
Anthony Green
Richard Earnshaw
David Edelsohn
Kaveh R. Ghazi