re PR target/65697 (__atomic memory barriers not strong enough for __sync builtins)

[gcc.git] / gcc / common.opt

diff --git a/gcc/common.opt b/gcc/common.opt
index 051f8247c9765e15788dff071d939cfb93055e54..dd49ae31880e0e17681291a15ae26dcd99d60199 100644 (file)
--- a/gcc/common.opt
+++ b/gcc/common.opt
@@ -918,7 +918,7 @@ Common Report
 This switch is deprecated; use -fsanitize-recover= instead
 
 fsanitize-undefined-trap-on-error
-Common Report Var(flag_sanitize_undefined_trap_on_error) Init(0)
+Common Driver Report Var(flag_sanitize_undefined_trap_on_error) Init(0)
 Use trap instead of a library function for undefined behavior sanitization
 
 fasynchronous-unwind-tables
@@ -2227,16 +2227,16 @@ Common Report Var(flag_tree_ch) Optimization
 Enable loop header copying on trees
 
 ftree-coalesce-inlined-vars
-Common Ignore RejectNegative
-Does nothing.  Preserved for backward compatibility.
+Common Report Var(flag_ssa_coalesce_vars,1) Init(2) RejectNegative Optimization
+Enable coalescing of copy-related user variables that are inlined
 
 ftree-coalesce-vars
-Common Report Var(flag_tree_coalesce_vars) Optimization
-Enable SSA coalescing of user variables
+Common Report Var(flag_ssa_coalesce_vars,2) Optimization
+Enable coalescing of all copy-related user variables
 
 ftree-copyrename
-Common Ignore
-Does nothing.  Preserved for backward compatibility.
+Common Report Var(flag_tree_copyrename) Optimization
+Replace SSA temporaries with better names in copies
 
 ftree-copy-prop
 Common Report Var(flag_tree_copy_prop) Optimization