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Diffstat (limited to 'gcc/f/g77.texi')
| -rw-r--r-- | gcc/f/g77.texi | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/gcc/f/g77.texi b/gcc/f/g77.texi index 93d1eab..5709f54 100644 --- a/gcc/f/g77.texi +++ b/gcc/f/g77.texi @@ -1446,6 +1446,7 @@ by type. Explanations are in the following sections. -malign-double -ffloat-store -fforce-mem -fforce-addr -fno-inline -ffast-math -fstrength-reduce -frerun-cse-after-loop +-funsafe-math-optimizations -fno-trapping-math -fexpensive-optimizations -fdelayed-branch -fschedule-insns -fschedule-insn2 -fcaller-saves -funroll-loops -funroll-all-loops @@ -2779,6 +2780,22 @@ Note that if you are not optimizing, no functions can be expanded inline. @cindex conformance, IEEE 754 Might allow some programs designed to not be too dependent on IEEE behavior for floating-point to run faster, or die trying. +Sets @samp{-funsafe-math-optimizations}, and +@samp{-fno-trapping-math}. + +@cindex -funsafe-math-optimizations option +@cindex options, -funsafe-math-optimizations +@item -funsafe-math-optimizations +Allow optimizations that may be give incorrect results +for certain IEEE inputs. + +@cindex -fno-trapping-math option +@cindex options, -fno-trapping-math +@item -fno-trapping-math +Allow the compiler to assume that floating-point arithmetic +will not generate traps on any inputs. This is useful, for +example, when running a program using IEEE "non-stop" +floating-point arithmetic. @cindex -fstrength-reduce option @cindex options, -fstrength-reduce |