(add_double, div_and_round_double, lshift_double, mul_double):
(neg_double, const_binop, fold): Check for signed integer overflow.
Propagate overflow flags from operands to result.
(const_binop, fold_convert): Use pedwarn for overflow warnings.
Say `constant expression', not `constant folding', for user's sake.
From-SVN: r2053
(SYSTEM_HEADER_DIR): New variable.
(xlimits.h): New target, broken out from install-limits-h.
Look in SYSTEM_HEADER_DIR for system's limits.h.
(start.encap): Dep on xlimits.h.
(install-limits-h): Install xlimits.h already made.
From-SVN: r2050
If we find a link pointing to ., make a similar
link to ., not a link to an absolute name.
(stdio.h): Change stdio.h to use stdarg.h to get va_list.
When link points to a dir $dirname outside $INPUT,
copy that dir into $LIB/root$dirname. Translate the link itself
into a link to that new dir. Make a file DONE in each treetop dir
so no treetop is scanned twice. Improve progress messages.
From-SVN: r2046
(default_compilers): Add missing comma between strings, so
that traditional compilers can compile gcc.c.
(main): Don't pass strcpy or strlen a NULL pointer if some of the
spec strings in default_compilers are NULL.
(validate_all_switches): Don't dereference a NULL pointer if some of
the spec strings in defalut_compilers are NULL.
From-SVN: r2039
* caller-save.c (init_caller_save): If we were unable to
find a simple insn which meets all its constraints to save
and restore with a single insn in a mode, then set
regno_save_mode to VOIDmode to insure that this mode is never
used to caller-save the current register.
From-SVN: r2038
(make_compound_operation, case ASHIFTRT): Add new code to
handle (ashiftrt (neg (ashift FOO C1) C2)) just like we currently
handle (ashiftrt (OP (ashiftrt FOO C1) C2) C2).
From-SVN: r2028
Deleted dependencies on some header files.
Replaced the use of the functions from memory.h with funtions like bzero.
Changed the include format.
From-SVN: r2019
-mpa-risc-1-0, -mpa-risc-1-1.
(ASM_DECLARE_FUNCTION_NAME): Emit argument descriptors for all
general registers if current_function_varargs.
From-SVN: r2018
(expand_fixup): Create a BLOCK node (via pushlevel/poplevel)
to represent an artificial scope containing all of the fixup code.
Also emit NOTE_INSN_BLOCK_BEG/NOTE_INSN_BLOCK_END for that block.
(fixup_gotos): Declaration of NEWBLOCK deleted.
Call `set_block' to use the BLOCK made in expand_fixup.
Deleted code to insert NEWBLOCK into block hierarchy.
From-SVN: r2014
(sched_analyze_2): Remove an explicit dependence between an insn
that uses CC0 and the immediately previous insn.
(SCHED_GROUP_P represents the dependence.)
(schedule_block): Only check sets_cc0_p on an insn.
From-SVN: r2010
(read_specs): Clear the entire new element of compilers.
(lookup_compiler): Copy all of spec array. Check element 0 for @.
(main): Concatenate all elements of compiler spec.
(validate_all_switches): Validate from all elements of compiler spec.
(default_compilers): Split CPP commands into separate strings.
From-SVN: r2005
