; Options for the language- and target-independent parts of the compiler.
-; Copyright (C) 2003, 2004 Free Software Foundation, Inc.
+; Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc.
;
; This file is part of GCC.
;
; Software Foundation, 59 Temple Place - Suite 330, Boston, MA
; 02111-1307, USA.
-; See c.opt for a description of this file's format.
+; See the GCC internals manual for a description of this file's format.
; Please try to keep this file in ASCII collating order.
-param
Common Separate
---param <param>=<value> Set paramter <param> to value. See below for a complete list of parameters
+--param <param>=<value> Set param
eter <param> to value. See below for a complete list of parameters
-target-help
Common
Common Report Var(flag_cse_skip_blocks)
When running CSE, follow conditional jumps
+fcx-limited-range
+Common Report Var(flag_cx_limited_range)
+Omit range reduction step when performing complex division
+
fdata-sections
Common Report Var(flag_data_sections)
Place data items into their own section
Perform enhanced load motion during global common subexpression elimination
fgcse-sm
-Common Report Var(flag_gcse_sm) Init(1)
+Common Report Var(flag_gcse_sm) Init(0)
Perform store motion after global common subexpression elimination
fgcse-las
-Common Report Var(flag_gcse_las) Init(1)
+Common Report Var(flag_gcse_las) Init(0)
Perform redundant load after store elimination in global common subexpression
elimination
Common Report Var(flag_modulo_sched)
Perform SMS based modulo scheduling before the first scheduling pass
-fmove-all-movables
-Common Report Var(flag_move_all_movables)
-Force all loop invariant computations out of loops
-
fmove-loop-invariants
Common Report Var(flag_move_loop_invariants)
Move loop invariant computations out of loops
Common RejectNegative Report Var(flag_mudflap_ignore_reads)
Ignore read operations when inserting mudflap instrumentation.
-fnew-ra
-Common Report Var(flag_new_regalloc)
-Use graph-coloring register allocation
-
freschedule-modulo-scheduled-loops
Common Report Var(flag_resched_modulo_sched)
Enable/Disable the traditional scheduling in loops that already passed modulo scheduling
Common Report Var(flag_non_call_exceptions)
Support synchronous non-call exceptions
-fold-unroll-loops
-Common Report Var(flag_old_unroll_loops)
-Perform loop unrolling when iteration count is known
-
-fold-unroll-all-loops
-Common Report Var(flag_old_unroll_all_loops)
-Perform loop unrolling for all loops
-
fomit-frame-pointer
Common Report Var(flag_omit_frame_pointer)
When possible do not generate stack frames
Common Joined RejectNegative
-frandom-seed=<string> Make compile reproducible using <string>
-freduce-all-givs
-Common Report Var(flag_reduce_all_givs)
-Strength reduce all loop general induction variables
-
freg-struct-return
Common Report Var(flag_pcc_struct_return,0) VarExists
Return small aggregates in registers
fsched-stalled-insns=
Common RejectNegative Joined UInteger
--fsched-stalled-insns=<number> Set number of queued insns that can be prematurely scheduled
+-fsched-stalled-insns=<number> Set number of queued insns that can be prematurely scheduled
; sched_stalled_insns_dep controls how many recently scheduled cycles will
; be examined for a dependency on a stalled insn that is candidate for
fsched-stalled-insns-dep=
Common RejectNegative Joined UInteger
--fsched-stalled-insns-dep=<number> Set dependence distance checking in premature scheduling of queued insns
+-fsched-stalled-insns-dep=<number> Set dependence distance checking in premature scheduling of queued insns
fshared-data
Common Report Var(flag_shared_data)
Mark data as shared rather than private
+fshow-column
+Common C ObjC C++ ObjC++ Report Var(flag_show_column) Init(1)
+Show column numbers in diagnostics, when available. Default on.
+
fsignaling-nans
Common Report Var(flag_signaling_nans)
Disable optimizations observable by IEEE signaling NaNs
Common Report Var(flag_speculative_prefetching)
Use value profiling for speculative prefetching
+fsplit-ivs-in-unroller
+Common Report Var(flag_split_ivs_in_unroller) Init(1)
+Split lifetimes of induction variables when loops are unrolled.
+
+fvariable-expansion-in-unroller
+Common Report Var(flag_variable_expansion_in_unroller)
+Apply variable expansion when loops are unrolled.
+
; Emit code to probe the stack, to help detect stack overflow; also
; may cause large objects to be allocated dynamically.
fstack-check
Common Report Var(flag_tree_ccp)
Enable SSA-CCP optimization on trees
+ftree-store-ccp
+Common Report Var(flag_tree_store_ccp)
+Enable SSA-CCP optimization for stores and loads
+
ftree-ch
Common Report Var(flag_tree_ch)
Enable loop header copying on trees
Common Report Var(flag_tree_copyrename)
Replace SSA temporaries with better names in copies.
+ftree-copy-prop
+Common Report Var(flag_tree_copy_prop)
+Enable copy propagation on trees
+
+ftree-store-copy-prop
+Common Report Var(flag_tree_store_copy_prop)
+Enable copy propagation for stores and loads
+
ftree-dce
Common Report Var(flag_tree_dce)
Enable SSA dead code elimination optimization on trees
Common Report Var(flag_tree_loop_im) Init(1)
Enable loop invariant motion on trees
+ftree-loop-linear
+Common Report Var(flag_tree_loop_linear)
+Enable linear loop transforms on trees
+
ftree-loop-ivcanon
-Common Report Var(flag_tree_loop_ivcanon)
+Common Report Var(flag_tree_loop_ivcanon) Init(1)
Create canonical induction variables in loops
ftree-loop-optimize
Common Report Var(flag_tree_loop_optimize) Init(1)
Enable loop optimizations on tree level
-ftree-points-to=
-Common Joined RejectNegative
-
ftree-pre
Common Report Var(flag_tree_pre)
Enable SSA-PRE optimization on trees
+ftree-salias
+Common Report Var(flag_tree_salias)
+Perform structural alias analysis
+
+ftree-sink
+Common Report Var(flag_tree_sink)
+Enable SSA code sinking on trees
+
ftree-sra
Common Report Var(flag_tree_sra)
Perform scalar replacement of aggregates
Common Report Var(flag_tree_live_range_split)
Perform live range splitting during the SSA->normal pass.
+ftree-vrp
+Common Report Var(flag_tree_vrp) Init(0)
+Perform Value Range Propagation on trees
+
funit-at-a-time
Common Report Var(flag_unit_at_a_time)
Compile whole compilation unit at a time
Common Report Var(flag_tree_vectorize)
Enable loop vectorization on trees
+ftree-vectorizer-verbose=
+Common RejectNegative Joined
+-ftree-vectorizer-verbose=<number> Set the verbosity level of the vectorizer
+
; -fverbose-asm causes extra commentary information to be produced in
; the generated assembly code (to make it more readable). This option
; is generally only of use to those who actually need to read the
Use expression value profiles in optimizations
fweb
-Common Report Var(flag_web) VarExists
+Common Report Var(flag_web) Init(0)
Construct webs and split unrelated uses of single variable
fwrapv
Common JoinedOrMissing
Generate debug information in extended XCOFF format
-m
-Common Joined
-
o
Common Joined Separate
-o <file> Place output into <file>
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