even if not optimizing, they may never be referenced.

From-SVN: r9092

(do_include): Check for redundant file before opening in
relative path case.  Don't call fstat unnecessarily.

From-SVN: r9091

From-SVN: r9090

pa.c (hppa_expand_prologue): Don't save the PIC register into the stack for functions which have no stack of...

        * pa.c (hppa_expand_prologue): Don't save the PIC register into
        the stack for functions which have no stack of their own.

From-SVN: r9089

From-SVN: r9088

From-SVN: r9087

(disclean): Delete config.run.

From-SVN: r9086

(build_search_list): New function.
(putenv_from_prefixes): Call it.
(option_map): New option --print-search-dirs.
(process_command): Handle it.
(main): Print installation directory and exec/startfile_prefixes if
--print-search-dirs given.

From-SVN: r9085

From-SVN: r9084

(FUNCTION_PROFILER): Do nothing; the assembler does it for us.

From-SVN: r9083

From-SVN: r9082

UNSIGNED_FLOAT and operand looks negative, can't simplify.

From-SVN: r9081

Use low_32_bit_operand for (plus:DI (zero_extend:DI ..) ..) cases.

From-SVN: r9080

From-SVN: r9079

From-SVN: r9078

From-SVN: r9077

From-SVN: r9076

use next_real_insn not next_active_insn.

From-SVN: r9075

From-SVN: r9074

From-SVN: r9073

delete lookup_name name in test for return.
(redeclaration_error_message): When newdecl is a block level
declaration, use lookup_name_current_level instead of DECL_CONTEXT.

From-SVN: r9072

Add comment saying that the option is not useful.
(TARGET_SWITCHES): Change -mpackstruct option to -mpadstruct.
(STRUCTURE_SIZE_BOUNDARY): Change PACKSTRUCT to PADSTRUCT changing
default value from 32 to 8.

From-SVN: r9071

From-SVN: r9070

field if we only want its address.

From-SVN: r9069

From-SVN: r9068

(i960_output_ldconst): In DFmode code, delete code to handle FP_REG_P
target.  In DFmode and SFmode code, delete test for HOST_FLOAT_FORMAT
== TARGET_FLOAT_FORMAT.

From-SVN: r9067

(LEGITIMATE_CONSTANT_P): Pass argument mode not VOIDmode to fp_literal.

From-SVN: r9066

if user gave an explicit one.

From-SVN: r9065

(CC1_SPEC): Don't output implicit -gstabs or -gcoff option
if user gave an explicit one.
(CC1_SPEC): Likewise.

From-SVN: r9064

(dbxout_parms): For gdb, output use GDB_INV_REF_REGPARM_STABS_LETTER
for parameters passed by invisible reference in registers.

From-SVN: r9063

(add_constant, current_function_pretend_args_size,
flag_traditional, table_lab): Delete unnecessary declarations.
(sh_cpu): Change type from attr_cpu to processor_type.
(need_slot, output_shift, lshiftrt_insns, howshift,
pop_operand): Delete.
(print_operand, output_branch): Delete calls to need_slot.
(synth_constant): Comment that it doesn't work.
(output_movedouble): Handle PRE_DEC dest not POST_INC dest.
(output_options): Don't use flag_traditional.
(shift_insns): Correct numbers to optimal sequences.
(shift_amounts): New table.
(shift_insns_rtx): New function.
(shiftinsns): Combine LSHIFTRT and ASHIFT cases.
(shiftcosts): Return true costs of shifts instead of estimate of 1.
(gen_ashift): Handle negative shift amounts.  Call gen_lshrsi3_m
for single bit LSHIFTRT, and gen_lshrisi3_k for multiple bit shifts.
(gen_shifty_op): Handle negative shift amounts at top.  Generate
optimal sequences for ASHIFT and LSHIFTRT.
(find_barrier): Correct pattern for matching mova instructions.
(general_movsrc_operand): Delete redundant test for (MEM LABEL_REF).
Don't reject POST_INC address for size > 4.
(general_movdst_operand): Don't reject PRE_DEC address for size > 4.

From-SVN: r9062

(MODE_DISP_OK_[12]): Delete.
(GO_IF_LEGITIMATE_INDEX): Delete uses of MODE_DISP_OK_[12].
(RTX_COSTS): Add LSHIFTRT.
(table_lab): Delete declaration.
(enum processor_type): New enum.
(sh_cpu_attr): New macro.
(sh_cpu): Change type to enum processor_type to avoid incomplete
enum type.

From-SVN: r9061

(cpu): Use sh_cpu_attr not sh_cpu.
(adddi3, subdi3, udivsi3-1, divsi3-1, mulsi3_call-1, ashrsi2_16,
ashrsi2_31, dect, casesi_worker): Use arith_reg_operand not
register_operand.
(ashlsi3_n, lshrsi3_n): Enable pattern.  Set length correctly.
Use '#' to output it.
(ashlsi3_n+1, lshrsi3_n+1): New patterns to split shifts.
(ashlsi3, lshrsi3): Use shiftby_operand instead of gen_shifty_op.
(lshlsi3_m): New pattern for single bit shifts.
(lshlsi3_k): Only handle multiple bit shifts.
(negc): Use IOR not PLUS to set carry bit.
(push+2, pop+2, movsi_pi, movdi-2, movdf_k-1, movsf_i-1): Delete.
(movsi_i, movqi_i, movhi_i): Delete redundant < and > constraints.
(movsf_i): Delete incorrect < and > constraints.

From-SVN: r9060

From-SVN: r9059

(madsi_highpart, umadsi_highpart): Delete.

From-SVN: r9058

(dbxout_parms): For parameters passed in memory, delete
obsolete code to handle parameters converted and stored back to
the stack slot where they were passed in.
(dbxout_reg_parms): Delete obsolete ifdefed out code.  Combine
redundant PARM_PASSED_IN_MEMORY tests.  For case where parameter
lives in memory, output stab if it doesn't live where it was passed.

From-SVN: r9057

From-SVN: r9056

From-SVN: r9055

rs6000.h (RETURN_ADDR_RTX): Add definition to support __builtin_return_address and __builtin_frame_address...

        * rs6000.h/rs6000.h (RETURN_ADDR_RTX): Add definition to support
        __builtin_return_address and __builtin_frame_address on the
        rs6000.  This is necessary to support exception handling in g++ on
        the rs6000.
Fixes eh6.C on rs6000.

From-SVN: r9054

From-SVN: r9053