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 c53a93e..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.
 
@@ -456,7 +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
@@ -482,11 +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
@@ -618,6 +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
@@ -921,8 +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
@@ -1049,8 +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
@@ -1084,6 +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
@@ -1287,4 +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.