2008-01-17 H.J. Lu <hongjiu.lu@intel.com>

[pf3gnuchains/gcc-fork.git] / gcc / common.opt

diff --git a/gcc/common.opt b/gcc/common.opt
index 6d277ea..e4916e4 100644 (file)
--- a/gcc/common.opt
+++ b/gcc/common.opt
@@ -18,7 +18,7 @@
 ; along with GCC; see the file COPYING3.  If not see
 ; <http://www.gnu.org/licenses/>.
 
-; See the GCC internals manual for a description of this file's format.
+; See the GCC internals manual (options.texi) for a description of this file's format.
 
 ; Please try to keep this file in ASCII collating order.
 
@@ -251,6 +251,8 @@ Common Separate
 ;
 ; 1: The version of the ABI first used in G++ 3.2.
 ;
+; 2: The version of the ABI first used in G++ 3.4.
+;
 ; Additional positive integers will be assigned as new versions of
 ; the ABI become the default version of the ABI.
 fabi-version=
@@ -399,6 +401,10 @@ fdbg-cnt=
 Common RejectNegative Joined
 -fdbg-cnt=<counter>:<limit>[,<counter>:<limit>,...]    Set the debug counter limit.   
 
+fdebug-prefix-map=
+Common Joined RejectNegative
+Map one directory name to another in debug information
+
 ; Nonzero for -fdefer-pop: don't pop args after each function call
 ; instead save them up to pop many calls' args with one insns.
 fdefer-pop
@@ -450,7 +456,7 @@ Common Report Var(flag_eliminate_unused_debug_types) Init(1)
 Perform unused type elimination in debug info
 
 femit-class-debug-always
-Common Report Var(flag_emit_class_debug_always) Init(1)
+Common Report Var(flag_emit_class_debug_always) Init(0)
 Do not suppress C++ class debug information.
 
 fexceptions
@@ -476,11 +482,9 @@ ffloat-store
 Common Report Var(flag_float_store) Optimization
 Don't allocate floats and doubles in extended-precision registers
 
-; Nonzero for -fforce-addr: load memory address into a register before
-; reference to memory.  This makes better cse but slower compilation.
 fforce-addr
-Common Report Var(flag_force_addr) Optimization
-Copy memory address constants into registers before use
+Common
+Does nothing.  Preserved for backward compatibility.
 
 fforward-propagate
 Common Report Var(flag_forward_propagate) Optimization
@@ -556,6 +560,10 @@ finline
 Common Report Var(flag_no_inline,0) Init(2)
 Pay attention to the \"inline\" keyword
 
+finline-small-functions
+Common Report Var(flag_inline_small_functions) Optimization
+Integrate simple functions into their callers when code size is known to not growth
+
 finline-functions
 Common Report Var(flag_inline_functions) Optimization
 Integrate simple functions into their callers
@@ -608,6 +616,11 @@ Common Report Var(flag_ipa_matrix_reorg) Optimization
 Perform matrix layout flattening and transposing based
 on profiling information.
 
+fipa-struct-reorg
+Common Report Var(flag_ipa_struct_reorg)
+Perform structure layout optimizations based
+on profiling information.
+
 fivopts
 Common Report Var(flag_ivopts) Init(1) Optimization
 Optimize induction variables on trees
@@ -699,6 +712,10 @@ fomit-frame-pointer
 Common Report Var(flag_omit_frame_pointer) Optimization
 When possible do not generate stack frames
 
+fopenmp-ssa
+Common Report Var(flag_openmp_ssa)
+Expand OpenMP operations on SSA form
+
 foptimize-register-move
 Common Report Var(flag_regmove) Optimization
 Do the full register move optimization pass
@@ -907,8 +924,8 @@ Common Report Var(flag_see) Init(0)
 Eliminate redundant sign extensions using LCM.
 
 fshow-column
-Common C ObjC C++ ObjC++ Report Var(flag_show_column) Init(1)
-Show column numbers in diagnostics, when available.  Default on
+Common C ObjC C++ ObjC++ Report Var(flag_show_column) Init(0)
+Show column numbers in diagnostics, when available.  Default off
 
 fsignaling-nans
 Common Report Var(flag_signaling_nans) Optimization
@@ -1035,8 +1052,12 @@ Common Report Var(flag_tree_copy_prop) Optimization
 Enable copy propagation on trees
 
 ftree-store-copy-prop
-Common Report Var(flag_tree_store_copy_prop) Optimization
-Enable copy propagation for stores and loads
+Common
+Does nothing.  Preserved for backward compatibility.
+
+ftree-cselim
+Common Report Var(flag_tree_cselim) Init(2) Optimization
+Transform condition stores into unconditional ones
 
 ftree-dce
 Common Report Var(flag_tree_dce) Optimization
@@ -1070,6 +1091,10 @@ ftree-loop-optimize
 Common Report Var(flag_tree_loop_optimize) Init(1) Optimization
 Enable loop optimizations on tree level
 
+ftree-parallelize-loops=
+Common Report Joined UInteger Var(flag_tree_parallelize_loops) Init(1)
+Enable automatic parallelization of loops
+
 ftree-pre
 Common Report Var(flag_tree_pre) Optimization
 Enable SSA-PRE optimization on trees
@@ -1121,6 +1146,15 @@ funsafe-loop-optimizations
 Common Report Var(flag_unsafe_loop_optimizations) Optimization
 Allow loop optimizations to assume that the loops behave in normal way
 
+fassociative-math
+Common Report Var(flag_associative_math)
+Allow optimization for floating-point arithmetic which may change the
+result of the operation due to rounding.
+
+freciprocal-math
+Common Report Var(flag_reciprocal_math)
+Same as -fassociative-math for expressions which include division.
+
 ; Nonzero means that unsafe floating-point math optimizations are allowed
 ; for the sake of speed.  IEEE compliance is not guaranteed, and operations
 ; are allowed to assume that their arguments and results are "normal"
@@ -1264,4 +1298,12 @@ w
 Common Var(inhibit_warnings)
 Suppress warnings
 
+shared
+Common RejectNegative Negative(pie)
+Create a shared library
+
+pie
+Common RejectNegative Negative(shared)
+Create a position independent executable
+
 ; This comment is to ensure we retain the blank line above.