diff options
Diffstat (limited to 'gcc/common.opt')
| -rw-r--r-- | gcc/common.opt | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/gcc/common.opt b/gcc/common.opt index c6ab1091be7..cf138ee442e 100644 --- a/gcc/common.opt +++ b/gcc/common.opt @@ -93,6 +93,10 @@ Wlarger-than- Common RejectNegative Joined UInteger -Wlarger-than-<number> Warn if an object is larger than <number> bytes +Wunsafe-loop-optimizations +Common Var(warn_unsafe_loop_optimizations) +Warn if the loop cannot be optimized due to nontrivial assumptions. + Wmissing-noreturn Common Var(warn_missing_noreturn) Warn about functions which might be candidates for __attribute__((noreturn)) @@ -402,6 +406,10 @@ fforce-mem Common Report Var(flag_force_mem) Copy memory operands into registers before use +fforward-propagate +Common Report Var(flag_forward_propagate) +Perform a forward propagation pass on RTL + ; Nonzero means don't put addresses of constant functions in registers. ; Used for compiling the Unix kernel, where strange substitutions are ; done on the assembly output. @@ -963,6 +971,13 @@ funroll-all-loops Common Report Var(flag_unroll_all_loops) Perform loop unrolling for all loops +; Nonzero means that loop optimizer may assume that the induction variables +; that control loops do not overflow and that the loops with nontrivial +; exit condition are not infinite +funsafe-loop-optimizations +Common Report Var(flag_unsafe_loop_optimizations) +Allow loop optimizations to assume that the loops behave in normal way + ; 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" |