diff options
Diffstat (limited to 'gcc/doc/invoke.texi')
| -rw-r--r-- | gcc/doc/invoke.texi | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 4ce855a1e84..72f83408dab 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -5621,7 +5621,7 @@ Dump after the peephole pass. @opindex fdump-rtl-postreload Dump after post-reload optimizations. -@itemx -fdump-rtl-pro_and_epilogue +@item -fdump-rtl-pro_and_epilogue @opindex fdump-rtl-pro_and_epilogue Dump after generating the function prologues and epilogues. @@ -16454,10 +16454,12 @@ Enable (disable) use of the floating-point multiply-accumulate instructions, when they are available. The default is @option{-mfused-madd}. -When multiply-accumulate instructions are used, the intermediate -product is calculated to infinite precision and is not subject to -the FCSR Flush to Zero bit. This may be undesirable in some -circumstances. +On the R8000 CPU when multiply-accumulate instructions are used, +the intermediate product is calculated to infinite precision +and is not subject to the FCSR Flush to Zero bit. This may be +undesirable in some circumstances. On other processors the result +is numerically identical to the equivalent computation using +separate multiply, add, subtract and negate instructions. @item -nocpp @opindex nocpp |