2005-04-21 Dale Johannesen <dalej@apple.com>

	Radar 3124235
	* Makefile.in (options.o):  New dependencies.
	(tree-optimize.o):  Ditto.
	* c-decl.c (start_function):  Record perfunc flags.
	* common.opt (falign-jumps, falign-labels, falign-loops):
	Add PerFunc, VarUint, VarExists.
	(fbranch-count-reg, fbranch-target-load-optimize,
	fbranch-target-load-optimize2, fbtr-bb-exclusive,
	fcaller-saves, fcprop-registers, fcrossjumping,
	fcse-follow-jumps, fcse-skip-blocks, fcx-limited-range,
	fdefer-pop, fdelayed-branch, fdelete-null-pointer-checks,
	fexpensive-optimizations, ffinite-math-only, ffloat-store,
	fforce-addr, fforce-mem, ffunction-cse, fgcse, fgcse-lm,
	fgcse-sm, fgcse-las, fgcse-after-reload,
	fguess-branch-probability, fif-conversion, fif-conversion2,
	fivopts, floop-optimize, floop-optimize2, fmath-errno,
	fmodulo-sched, fmove-loop-invariants,
	freschedule-modulo-scheduled-loops, fomit-frame-pointer,
	foptimize-register-move, foptimize-sibling-calls, fpeel-loops,
	fpeephole, fpeephole2, fprefetch-loop-arrays, fregmove,
	frename-registers, freorder-blocks, freorder-blocks-and-partition,
	frerun-cse-after-loop, frerun-loop-opt, frounding-math,
	fsched-interblock, fsched-spec, fsched-spec-load,
	fsched-spec-load-dangerous, fsched2-use-superblocks,
	fsched2-use-traces, fschedule-insns, fschedule-insns2,
	fsignaling-nans, fsplit-ivs-in-unroller,
	fvariable-expansion-in-unroller, fstrength-reduce,
	fthread-jumps, ftracer, ftrapping-math, ftrapv, ftree-ccp,
	ftree-ch, ftree-combine-temps, ftree-copyrename, ftree-dce,
	ftree-dominator-opts, ftree-dse, ftree-fre, ftree-loop-im,
	ftree-loop-linear, ftree-loop-ivcanon, ftree-loop-memset,
	ftree-loop-optimize, ftree-pre, ftree-sra, ftree-ter,
	ftree-lrs, funroll-loops, funroll-all-loops,
	funsafe-math-optimizations, funswitch-loops, ftree-vectorize,
	fweb, fwrapv): Add PerFunc.
	(fsched-verbose):  Add Var, UInteger, PerFunc, VarUint.
	(fsched-stalled-insns-dep):  Add PerFunc, VarUint.
	(p): Add VarExists.
	* final.c (asm_insn_count):  Replace "optimize" by "optimizing".
	(final):  Ditto.
	(final_scan_insn):  Ditto.
	* flags.h (optimize, optimize_size):  Remove.
	* haifa-sched.c (sched_verbose_param):  Remove.
	(fix_sched_param):  Remove.
	* loop.c (struct loop_mem_info): Replace "optimize" by "optimizable".
	(insert_loop_mem, load_mems):  Adjust references.
	* opt-functions.awk (flag_set_p):  New.
	(switch_flags):  Add VarUint, PerFunc.
	(var_ref):  Handle them.
	(access_ref):  New.
	* optc-gen.awk (END):  Substantial rewrite to handle PerFunc,
	VarUint.
	* opth-gen.awk (END):  Ditto.
	* opts.c (hashtab.h):  New include.
	(handle_option):  Use access_flag.
	(set_flags_from_O):  New.
	(decode_options):  Split out set_flags_from_O. Save
	cl_pf_opts_cooked.
	(common_handle_options):  Remove special cases for
	align-functions, align-jumps, align-labels,
	align-loops, sched-verbose, sched-stalled-insns-dep.
	Use access_flag.
	(cl_perfunc_opts_hash_table, hash_cl_perfunc_opts,
	cmp_cl_perfunc_opts, make_perfunc_opts,
	func_cl_pf_opts_mapping_hash_table, struct func_cl_pf_opts_mapping,
	func_cl_pf_opts_mapping_hash, func_cl_pf_opts_mapping_eq,
	record_func_cl_pf_opts_mapping, restore_func_cl_pf_opts_mapping,
	copy_func_cl_pf_opts_mapping):  New.
	* opts.h (set_flags_from_O, record_func_cl_pf_opts_mapping,
	restore_func_cl_pf_opts_mapping, copy_func_cl_pf_opts_mapping):  New.
	(struct cl_option):  Add access_flag.
	(CL_VARUINT, CL_PERFUNC):  New.
	* toplev.c (optimize, optimize_size):  Remove.
	(print_switch_values):  Use access_flag.
	* toplev.h (flag_loop_optimize, flag_crossjumping, flag_if_conversion,
	flag_if_conversion2, flag_peel_loops, flag_rerun_cse_after_loops,
	flag_thread_jumps, flag_tracer, flag_unroll_loops,
	flag_unroll_all_loops, flag_unswitch_loops, flag_cprop_registers,
	flag_loop_optimize2):  Remove.
	* tree-optimize.c (opts.h):  New include.
	(tree_rest_of_compilation):  Restore saved opts from definition.
	* config/darwin-c.c (flags.h, opts.h, varray.h):  New includes.
	(darwin_pragma_reverse_bitfields):  Fix obvious spelling bug.
	(va_opt, push_opt_level, pop_opt_level, darwin_pragma_opt_level,
	darwin_pragma_opt_size):  New.
	* config/darwin-protos.h (darwin_pragma_opt_level,
	darwin_pragma_opt_size, reset_optimization_options):  New.
	* config/darwin.h (DARWIN_REGISTER_TARGET_PRAGMAS):
	Add optimization_level, optimize_for_size.
	* config/t-darwin (darwin-c.o):  New dependencies.
	* config/i386/i386.c (reset_optimization_options):  New.
	* config/rs6000/rs6000.c (reset_optimization_options):  New.
	* config/rs6000/rs6000.h (optimize, flag_expensive_optimizations):  Remove.
	* cp/Make-lang.in (cp/decl.o):  New dependency.
	* cp/decl.c (opts.h):  New include.
	(build_library_fn_1):  Record perfunc opts.
	(start_preparsed_function): Propagate saved opts to existing forward decl.
	(start_function):  Record perfunc opts.
	* doc/extend.texi (pragma optimization_level, optimize_for_size):
	Document.
	* objc/objc-act.c (objc_start_function):  Record perfunc opts.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/apple-local-200502-branch@98538 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 30 insertions, 0 deletions

diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index 51fec5537be..d346e4ec35a 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -1969,6 +1969,36 @@ optimization_options (int level ATTRIBUTE_UNUSED, int size ATTRIBUTE_UNUSED)
     }
   /* APPLE LOCAL end tweak default optimizations */
 }
+
+/* APPLE LOCAL begin optimization pragmas 3124235/3420242 */
+/* Version of the above for use from #pragma optimization_level.
+   Do not reset things unless they're per-function.  */
+
+void
+reset_optimization_options (int level ATTRIBUTE_UNUSED, 
+			    int size ATTRIBUTE_UNUSED)
+{
+  if (DEFAULT_ABI == ABI_DARWIN)
+    {
+      /* Block reordering causes code bloat, and very little speedup */
+      flag_reorder_blocks = 0;
+      /* Multi-basic-block scheduling loses badly when the compiler
+         misguesses which blocks are going to be executed, more than
+	 it gains when it guesses correctly.  Its guesses for cases
+	 where interblock scheduling occurs (if-then-else's) are
+	 little better than random, so disable this unless requested. */
+      flag_schedule_interblock = 0;
+      /* The Darwin libraries never set errno, so we might as well
+	 avoid calling them when that's the only reason we would.  */
+      flag_errno_math = 0;
+      /* Trapping math is not needed by many users, and is expensive.
+	 C99 permits us to default it off and we do that.  It is
+	 turned on when <fenv.h> is included (see darwin_pragma_fenv
+	 in darwin-c.c).  */
+      flag_trapping_math = 0;
+    }
+}
+/* APPLE LOCAL end optimization pragmas 3124235/3420242 */
 
 /* Do anything needed at the start of the asm file.  */