gcc/

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

diff --git a/gcc/common.opt b/gcc/common.opt
index 36e52fc..ba5bb29 100644 (file)
--- a/gcc/common.opt
+++ b/gcc/common.opt
@@ -257,7 +257,9 @@ Common RejectNegative Joined UInteger
 ; 1 if pointer arguments may not alias each other but may alias
 ;   global variables.
 ; 2 if pointer arguments may not alias each other and may not
-;   alias global variables.  True in Fortran.
+;   alias global variables.
+; 3 if pointer arguments may not alias anything.  True in Fortran.
+;   Set by the front end.
 fargument-alias
 Common Report Var(flag_argument_noalias,0)
 Specify that arguments may alias each other and globals
@@ -270,6 +272,10 @@ fargument-noalias-global
 Common Report Var(flag_argument_noalias,2) VarExists
 Assume arguments alias neither each other nor globals
 
+fargument-noalias-anything
+Common Report Var(flag_argument_noalias,3) VarExists
+Assume arguments alias no other storage
+
 fasynchronous-unwind-tables
 Common Report Var(flag_asynchronous_unwind_tables)
 Generate unwind tables that are exact at each instruction boundary
@@ -391,6 +397,10 @@ feliminate-unused-debug-types
 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)
+Do not suppress C++ class debug information.
+
 fexceptions
 Common Report Var(flag_exceptions)
 Enable exception handling
@@ -556,8 +566,8 @@ Common Report Var(flag_leading_underscore) Init(-1)
 Give external symbols a leading underscore
 
 floop-optimize
-Common Report Var(flag_loop_optimize)
-Perform loop optimizations
+Common
+Does nothing.  Preserved for backward compatibility.
 
 fmath-errno
 Common Report Var(flag_errno_math) Init(1)
@@ -663,11 +673,7 @@ Common Report Var(flag_pie,1) VarExists
 Generate position-independent code for executables if possible (small mode)
 
 fprefetch-loop-arrays
-Common Report Var(flag_prefetch_loop_arrays,1)
-Generate prefetch instructions, if available, for arrays in loops
-
-fprefetch-loop-arrays-rtl
-Common Report Var(flag_prefetch_loop_arrays,2)
+Common Report Var(flag_prefetch_loop_arrays)
 Generate prefetch instructions, if available, for arrays in loops
 
 fprofile
@@ -726,8 +732,8 @@ Common Report Var(flag_rerun_cse_after_loop) Init(2)
 Add a common subexpression elimination pass after loop optimizations
 
 frerun-loop-opt
-Common Report Var(flag_rerun_loop_opt)
-Run the loop optimizer twice
+Common
+Does nothing.  Preserved for backward compatibility.
 
 frounding-math
 Common Report Var(flag_rounding_math)
@@ -845,8 +851,8 @@ Common Report RejectNegative Var(flag_stack_protect, 2) VarExists
 Use a stack protection method for every function
 
 fstrength-reduce
-Common Report Var(flag_strength_reduce)
-Perform strength reduction optimizations
+Common
+Does nothing.  Preserved for backward compatibility.
 
 ; Nonzero if we should do (language-dependent) alias analysis.
 ; Typically, this analysis will assume that expressions of certain