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Diffstat (limited to 'gcc/ChangeLog')
| -rw-r--r-- | gcc/ChangeLog | 397 |
1 files changed, 397 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 47fccd1..4bf2d76 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,400 @@ +2000-04-08 Richard Earnshaw (rearnsha@arm.com) + + Merge changes from merged-arm-thumb-backend-branch onto trunk. + + 2000-04-08 Richard Earnshaw (rearnsha@arm.com) + + * Merge trunk code from tag merged-arm-thumb-backend-merge_20000408 + into branch. + + * arm.md (nop): Use the standard RTL expression. Don't code as a + define_expand. + (*arm_nop, *thumb_nop): Delete. + + * arm.c (const_ok_for_arm): Don't use ANSI extensions for defining + constants. Use casts instead. + (arm_gen_constant, arm_rtx_costs, arm_reload_in_hi, arm_reload_out_hi, + output_multi_immediate, arm_poke_function_name): Likewise. + * arm.h (ARM_LEGITIIMIZE_RELOAD_ADDRESS, ARM_SIGN_EXTEND, + MASK_RETURN_ADDDR): Likewise. + + 2000-03-31 Richard Earnshaw (rearnsha@arm.com) + + * Merge trunk code from tag merged-arm-thumb-backend-merge_20000325 + into branch. + + * arm.md (eh_epilogue): New function. + * arm.h (struct machine_function): Move to here ... + * arm.c: ... from here. + (arm_output_epilogue): Support epilogues for __builtin_eh_return. + (thumb_exit): Extra parameter eh_ofs. All callers changed. + Handle epilogues for __builtin_eh_return. Make bit-fields unsigned. + + 2000-03-30 Nick Clifton <nickc@cygnus.com> + + * config/arm/semi.h (ASM_SPEC): Restore definition. + (SUBTARGET_EXTRA_ASM_SPEC): Define if not already defined. + + * config/arm/elf.h (ASM_SPEC): Restore definition. + (SUBTARGET_EXTRA_ASM_SPEC): Define if not already defined. + + * config/arm/arm.h (ASM_SPEC): Remove definition. + (SUBTARGET_EXTRA_ASM_SPEC): Remove definition. + + 2000-03-26 Bernd Schmidt <bernds@cygnus.co.uk> + + * config/arm/arm.c: Disable -fschedule-insns for Thumb. + + 2000-03-24 Nick Clifton <nickc@cygnus.com> + + Various formating tidyups, elimination of compile time + warnings and synchronisation with internal sources: + + * config/arm/arm-protos.h (assemble_align): Add prototype. + (gen_rotated_half_load): Rename to arm_gen_rotated_half_load. + (gen_comapre_reg): Rename to arm_gen_compare_reg. + (arm_return_addr_rtx): Rename to arm_return_addr. + + * config/arm/arm.c: Include except.h. + Define shorter typenames for strict minipool_node and struct + minipool_fix. + (arm_return_in_memory): For WinCE return all structures <= 32 bits + in memory. + (gen_rotated_half_load): Rename to arm_gen_rotated_half_load. + (gen_comapre_reg): Rename to arm_gen_compare_reg. + + * config/arm/arm.h (SUBTARGET_EXTRA_ASM_SPEC): Define if not + already defined. + (ASM_SPEC): Define if not already defined. + (ASM_OUTPUT_DEF_FROM_DECLS): Define. + + * config/arm/arm.md: Rename references to gen_rotated_half_load to + arm_gen_rotated_half_load, and references to gen_comapre_reg to + arm_gen_compare_reg. + (indirect_jump): Only accept register operands. + (load_indirect_jump): Keep this pattern since combine can generate + it. + + * config/arm/coff.h: Include aout.h. + (MULTILIB_DEFAULTS): Only define if not already defined. + + * config/arm/elf.h (ASM_OUTPUT_DEF_FROM_DECLS): Move definition + into arm.h (so that COFF ports can support thumb based aliases). + (ASM_SPEC): Move definition into arm.h + + * config/arm/linux-elf.h (SUBTARGET_EXTRA_ASM_SPEC): Remove + redundant apcs spec. + (ASM_SPEC): Move definition to arm.h + + * config/arm/semi.h (ASM_SPEC): Move definition to arm.h + + * config/arm/unknown-elf.h (ASM_OUTPUT_SECTION_NAME): Add support + for entries in the .bss section + + 2000-03-23 Nick Clifton <nickc@cygnus.com> + + * config/arm/arm.h (THUMB_INITIAL_ELIMINATION_OFFSET): Pass 0 + to thumb_far_jump_used_p. + + * config/arm/arm-protos.h (thumb_far_jump_used_p): Take a + single integer parameter. + + * config/arm/arm.c (struct machine_function): Add two new + fields, 'far_jump_used' and 'arg_pointer_live'. + (thumb_far_jump_used_p): Once the decision has been made that + far jumps might be used, always return true. + If being called from the initial elimination offset macro then + do not bother to perform the test if the arg pointer is not + being used. + (thumb_unexpand_epilogue): Pass 1 to thumb_far_jump_used_p(). + (output_thumb_prologue): Pass 1 to thumb_far_jump_used_p(). + + 2000-03-23 Richard Earnshaw (rearnsha@arm.com) + + * arm.c (output_return_instruction): Handle more cases where we can + return from a function with an ldr instruction. + (arm_output_epilogue): Likewise. + + * arm.c (thumb_expand_prologue): Don't clobber the frame pointer + if we need to push a large stack frame and there are no callee-saved + registers. + + * arm.c (arm_debugger_arg_offset): An offset of 0 is also valid + in ARM code if the frame pointer has been eliminated. + + * arm.md (epilogue, *epilogue_insns, consttable_*, align_4): Renumber + unspec_volatile arguments to avoid duplicates. + (consttable_1, consttable_2): Fixes for big-endian mode. + + * arm.md (all ARM-mode load insns): Add neg_pool_range attribute + as appropriate. + + Re-write constant pool code. + * arm.c (minipool_node, minipool_fix): New types. + (minifix): Delete type. + (arm_add_minipool_constant): Delete. + (arm_compute_minipool_offsets, arm_find_barrier, + arm_find_minipool_constant, fixup_compare, sort_fixups): Likewise. + (get_jump_table_size): Now returns HOST_WIDE_INT. + (move_minipool_fix_forward_ref, add_minipool_forward_ref): New + functions. + (move_minipool_fix_backward_ref, add_minipool_backward_ref): Likewise. + (assign_minipool_offsets, arm_print_value): Likewise. + (dump_minipool): Rewrite. + (arm_barrier_cost): New function. + (create_fix_barrier): New function. + (push_minipool_barrier): New function. + (push_minipool_fix): Record additional information about the fixup + required. + (note_invalid_constants): Remove push for (UNSPEC 3). Don't + check the mode of what needs fixing. + (arm_reorg): Rewrite. + + 2000-03-08 Nick Clifton <nickc@cygnus.com> + + * config/arm/arm.md (indirect_jump): Force constant addresses into + a register. + + 2000-03-01 Bernd Schmidt <bernds@cygnus.co.uk> + + * config/arm/arm.md: Add splitter to turn SF moves into SI moves. + + 2000-02-24 Nick Clifton <nickc@cygnus.com> + + * config/arm/arm.c (thumb_expand_prologue): Make sure that stack + adjust is word aligned. + (thumb_expand_epilogue): Make sure that stack adjust is word + aligned. + + * config/arm/elf.h (ASM_FILE_START): Fix type of version string. + + 2000-02-24 Bernd Schmidt <bernds@cygnus.com> + + * config/arm/arm.h (THUMB_GO_IF_LEGITIMATE_ADDRESS): Allow frame + pointer relative addresses. + + 2000-02-10 Richard Earnshaw <rearnsha@arm.com> + + * arm.c (find_barrier): Find the last barrier within the allowed + range. + + 2000-02-09 Nick Clifton <nickc@cygnus.com> + + * config/arm/arm-protos.h: Replace PROTO with PARAMS. + + 2000-02-09 Nick Clifton <nickc@cygnus.com> + + * config/arm/linux-elf.h (FUNCTION_PROFILER): Rename to + ARM_FUNCTION_PROFILER. + + * config/arm/netbsd.h (FUNCTION_PROFILER): Rename to + ARM_FUNCTION_PROFILER. + + * config/arm/linux-oldld.h: Imported from mainline sources. + + 2000-02-07 Nick Clifton <nickc@cygnus.com> + + * config/arm/lib1funcs.asm: Merge in thumb functions from + lib1thumb.asm. + + * config/arm/lib1thumb.asm: Delete. + + 2000-02-04 Nick Clifton <nickc@cygnus.com> + + * config/arm/arm.c: Sychronised with current Red hat local + sources. + * config/arm/arm.h: Ditto. + * config/arm/arm-protos.h: Ditto. + + 2000-02-02 Bernd Schmidt <bernds@cygnus.co.uk> + + * arm.c (soft_df_operand): Reject SUBREGs containing a constant. + + * arm.c (arm_gen_movstrqi): Generate halfword stores rather than two + byte stores. + + 2000-02-02 Nick Clifton <nickc@cygnus.com> + + * config/arm/thumb.c (thumb_exit): Additional fix for same bug. + + * config/arm/arm.md (epilogue): Fix rtl checking abort because + (return) was emited using an emit_insn() call. + + 2000-01-31 Nick Clifton <nickc@cygnus.com> + + * config/arm/arm.c (output_thumb_prologue): Fix bug generating + thumb stack frame. + (thumb_exit): Move frame pointer back into hard frame pointer + register if backtracing is being used. + + 2000-01-13 Richard Earnshaw (rearnsha@arm.com) + + * Merge trunk code from tag merged-arm-thumb-backend-merge_20000113 + into branch. + + 1999-12-15 Bernd Schmidt <bernds@cygnus.co.uk> + + * config/arm/arm.md (neg_pool_offset): Provide default for new + attribute. + (arm_movsi_insn): Add neg_pool_offset attribute. + * config/arm/arm.c (arm_find_barrier): Replace arg FIX with an + rtx for the insn that starts the scan and an unsigned long for its + address. Add MIN_OFFSET and PINSERTED args. All callers changed. + Change scan to ignore insns before MIN_OFFSET. Store size of inserted + instructions in *PINSERTED. + (struct minipool_fixup): Add MIN_ADDRESS elt. + (sort_fixups): Compute it. + (arm_reorg): Changes to support inserting pools before the insn to be + fixed up. + + 1999-12-08 Bernd Schmidt <bernds@cygnus.co.uk> + + * config/arm/elf.h (MULTILIB_DEFAULTS): Add "marm". + * config/arm/linux-elf.h (MULTILIB_DEFAULTS): Add "marm". + * config/arm/coff.h (MULTILIB_DEFAULTS): Add "marm". + + Wed Nov 3 10:04:07 1999 Nick Clifton <nickc@cygnus.com> + + * config/arm/semi.h (TARGET_VERSION): Do not define if already + defined. + (TARGET_DEFAULT): Do not define if already defined. + + Tue Nov 2 10:37:25 1999 Nick Clifton <nickc@cygnus.com> + + * config/arm/arm.md (anddi3): Allow disjoint source operands. + (iordi3): Allow disjoint source operands. + (xordi3): Allow disjoint source operands. + (negdi2): Permit construction for ARM and Thumb. + (arm_negdi2): Renamed version of old negdi2 pattern. + (thumb_negdi2): New pattern: Only permit non-overlapping + source and destination. + + Fri Oct 29 18:52:38 1999 Nick Clifton <nickc@cygnus.com> + + * config/arm/arm.c (thumb_expand_prologue): Emit a USE of the + scratch low register so that it will not be deleted. + + Fri Oct 29 15:23:48 1999 Nick Clifton <nickc@cygnus.com> + + * config/arm/pe.h (ARM_PE): Define. + + * config/arm/arm.c (arm_valid_machine_decl_attribute): Allow + interfacearm attribute if this is a PE toolchain. + (output_return_instruction): Do not emit anything if the function + has the naked attribute set. + (is_called_in_ARM_mode): If the function has the interfacearm + attribute then return true. + (thumb_expand_prologue): Do not generate a prologue for naked + functions. + (thumb_expand_epilogue): Do not generate an epilogie for a naked + function. + (output_thumb_prologue): Do not bother if the function is naked. + Strip PE encoding from function name before emitting. + + Thu Oct 28 11:05:13 1999 Richard Earnshaw <rearnsha@arm.com> + + * arm.md (pic_load_addr): Fix constraints. + + * arm.md (casesi_insn): Fix mis-applied patch. + + * arm.md ("core" function unit): Add rules for single- and + multi-cycle insns. + (All TARGET_THUMB patterns): Add "type" attribute information + where needed. + * arm.c (arm_adjust_cost): Reduce the cost of a data dependency if + the following insn is a CALL. + + * arm.c (thumb_expand_epilogue): Add a use of the adjusted stack + pointer. + * arm.h (CONDITIONAL_REGISTER_USAGE): Nail down the + ARM_HARD_FRAME_POINTER_REGNUM when TARGET_APCS_FRAME. + (FRAME_POINTER_REQUIRED): Only check TARGET_APCS_FRAME if TARGET_ARM. + + Wed Oct 27 14:40:48 1999 Nick Clifton <nickc@cygnus.com> + + * config/arm/linux-gas.h: oops - this file was missed out when the + branch was created... + + Tue Oct 26 17:07:38 1999 Richard Earnshaw <rearnsha@arm.com> + + * thumb.c: Deleted. Move contents to ... + * arm.c: ... here. + * t-arm-aout, t-arm-coff, t-arm-elf, t-linux, t-netbsd, t-semi: Remove + rule for thumb.o + * configure.in (arm*-*-*): Remove thumb.o from extra_objs list. + * configure: Regen. + + * arm-protos.h: Use RTX_CODE and tidy up long lines. Don't + declare a prototype for asm_output_align(); + + * arm.c (thumb_condition_code): Delete. + (arm_print_operand): Always use arm_condition_code array. + + * arm.c (thumb_return_addr_rtx): Delete. + (arm_save_machine_status, arm_restore_machine_status): Delete. + (arm_init_machine_status, arm_mark_machine_status): New functions. + (arm_init_expanders): Update accordingly. + (arm_return_addr): Renamed from arm_return_addr_rtx. Rewrite. + (thumb_expand_prologue): Delete code referencing thumb_return_addr_rtx. + * arm.h (RETURN_ADDR_RTX): Call arm_return_addr(). + + Tue Oct 26 13:24:16 1999 Nick Clifton <nickc@cygnus.com> + + * configure.in : Fix arm-*-aout target to use new t-arm-aout + script. + * config/arm/t-arm-aout: New file: Makefile script for arm-*-aout + targets. + + Tue Oct 26 11:27:12 1999 Nick Clifton <nickc@cygnus.com> + + * config/arm/thumb.c (output_thumb_prologue): Fix bug creating + stack backtrace structure. + + * config/arm/arm-protos.h: Add prototypes for functions defined in + arm/pe.h. + + * config/arm/arm.c (arm_override_options): Fix selection of + attributes of default processor. + + * config/arm/coff.h: Delete needless #include. + + * config/arm/pe.c: Delete unused code. + + * config/arm/pe.h (CPP_DEFINES): Delete + (SUBTARGET_CPP_SPEC): Define. + (ASM_DECLARE_FUNCTION_NAME): Use ARM_DECLARE_FUNCTION_NAME. + + * config/arm/t-pe: Add -DInhibit_libc to allof libgcc.a to build. + + Mon Oct 25 15:42:09 1999 Richard Earnshaw (rearnsha@arm.com) + + * arm.h (TARGET_APCS_FRAME): Renamed from TARGET_APCS -- all uses + updated. + (CAN_DEBUG_WITHOUT_FP): Define. + (FIXED_REGISTERS): Make r11 call-saved. + (CALL_USED_REGISTERS): Likewise. + (CONDITIONAL_REGISTER_USAGE): Fix r11 if TARGET_APCS_FRAME. + (FRAME_POINTER_REQUIRED): Correct logic for determining when a + frame-pointer is required. + (TARGET_DEFAULT): Make default setting include ARM_FLAG_APCS_FRAME. + * arm.c (arm_override_options): Warn about -mno-apcs-frame and -g + if the target normally needs a stack frame in non-leaf functions. + (use_return_insn): Correct logic for determining when a return + instruction can be used. + (output_return_instruction): Handle the frame-pointer register as + a normal register when not TARGET_APCS_FRAME. + (arm_output_prologue): Likewise. + (arm_output_epilogue): Likewise. + (output_func_epilogue): Likewise. + (arm_expand_prologue): Likewise. + * netbsd.h semi.h (TARGET_DEFAULT): Add ARM_FLAG_APCS_FRAME. + + * arm.c (use_return_insn): No need to check floating point regs if + TARGET_SOFT_FLOAT. + (arm_find_minipool_constant): Correct typo; use GET_CODE to get + the code of value stored in the minipool array. + (arm_add_minipool_constant): Likewise. + 2000-04-08 Kaveh R. Ghazi <ghazi@caip.rutgers.edu> * basic-block.h (conflict_graph_enum_fn): K&R fix. |