2008-06-12 Tobias Burnus <burnus@net-b.de>

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

diff --git a/gcc/common.opt b/gcc/common.opt
index 3a64d2a..94f2c56 100644 (file)
--- a/gcc/common.opt
+++ b/gcc/common.opt
@@ -112,14 +112,7 @@ Exit on the first error occurred
 
 Wframe-larger-than=
 Common RejectNegative Joined UInteger
--Wframe-larger-than=@var{len} Warn whenever a function's stack frame requires
-more than @var{len} bytes.  The computation done to determine
-the stack frame size is approximate and not conservative.
-The actual requirements may be somewhat greater than @var{len}
-even if you do not get a warning.  In addition, any space allocated
-via @code{alloca}, variable-length arrays, or related constructs
-is not included by the compiler when determining
-whether or not to issue a warning.
+-Wframe-larger-than=<number> Warn if a function's stack frame requires more than <number> bytes
 
 Winline
 Common Var(warn_inline) Warning
@@ -127,7 +120,10 @@ Warn when an inlined function cannot be inlined
 
 Wlarger-than-
 Common RejectNegative Joined UInteger Warning
--Wlarger-than-<number> Warn if an object is larger than <number> bytes
+
+Wlarger-than=
+Common RejectNegative Joined UInteger Warning
+-Wlarger-than=<number> Warn if an object is larger than <number> bytes
 
 Wlogical-op
 Common Warning Var(warn_logical_op)
@@ -141,6 +137,10 @@ Wmissing-noreturn
 Common Var(warn_missing_noreturn) Warning
 Warn about functions which might be candidates for __attribute__((noreturn))
 
+Wmudflap
+Common Var(warn_mudflap) Init(1) Warning
+Warn about constructs not instrumented by -fmudflap
+
 Woverflow
 Common Var(warn_overflow) Init(1) Warning
 Warn about overflow in arithmetic expressions
@@ -229,10 +229,6 @@ Wunused-variable
 Common Var(warn_unused_variable) Warning
 Warn when a variable is unused
 
-Wvolatile-register-var
-Common Var(warn_register_var) Warning
-Warn when a register variable is declared volatile
-
 Wcoverage-mismatch
 Common RejectNegative Var(warn_coverage_mismatch) Warning
 Warn instead of error in case profiles in -fprofile-use do not match
@@ -405,6 +401,10 @@ fcx-limited-range
 Common Report Var(flag_cx_limited_range) Optimization
 Omit range reduction step when performing complex division
 
+fcx-fortran-rules
+Common Report Var(flag_cx_fortran_rules) Optimization
+Complex multiplication and division follow Fortran rules
+
 fdata-sections
 Common Report Var(flag_data_sections) Optimization
 Place data items into their own section
@@ -732,10 +732,6 @@ 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
@@ -808,14 +804,27 @@ fprofile-arcs
 Common Report Var(profile_arc_flag)
 Insert arc-based program profiling code
 
+fprofile-dir=
+Common Joined RejectNegative
+Set the top-level directory for storing the profile data.
+The default is 'pwd'.
+
 fprofile-generate
 Common
 Enable common options for generating profile info for profile feedback directed optimizations
 
+fprofile-generate=
+Common Joined RejectNegative
+Enable common options for generating profile info for profile feedback directed optimizations, and set -fprofile-dir=
+
 fprofile-use
-Common
+Common Var(flag_profile_use)
 Enable common options for performing profile feedback directed optimizations
 
+fprofile-use=
+Common Joined RejectNegative
+Enable common options for performing profile feedback directed optimizations, and set -fprofile-dir=
+
 fprofile-values
 Common Report Var(flag_profile_values)
 Insert code to profile values of expressions
@@ -1095,6 +1104,10 @@ ftree-fre
 Common Report Var(flag_tree_fre) Optimization
 Enable Full Redundancy Elimination (FRE) on trees
 
+ftree-loop-distribution
+Common Report Var(flag_tree_loop_distribution) Optimization
+Enable loop distribution on trees
+
 ftree-loop-im
 Common Report Var(flag_tree_loop_im) Init(1) Optimization
 Enable loop invariant motion on trees
@@ -1124,8 +1137,8 @@ Common Report Var(flag_tree_reassoc) Init(1) Optimization
 Enable reassociation on tree level
 
 ftree-salias
-Common Report Var(flag_tree_salias) Optimization
-Perform structural alias analysis
+Common
+Does nothing.  Preserved for backward compatibility.
 
 ftree-sink
 Common Report Var(flag_tree_sink) Optimization
@@ -1242,6 +1255,10 @@ fweb
 Common Report Var(flag_web) Init(2) Optimization
 Construct webs and split unrelated uses of single variable
 
+ftree-builtin-call-dce
+Common Report Var(flag_tree_builtin_call_dce) Init(0) Optimization
+Enable conditional dead code elimination for builtin calls
+
 fwhole-program
 Common Report Var(flag_whole_program) Init(0) Optimization
 Perform whole program optimizations