diff options
Diffstat (limited to 'gcc/doc/invoke.texi')
| -rw-r--r-- | gcc/doc/invoke.texi | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index eadf22a3591..0da40754606 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -316,7 +316,7 @@ Objective-C and Objective-C++ Dialects}. -funroll-all-loops -funroll-loops -fpeel-loops @gol -funswitch-loops -fold-unroll-loops -fold-unroll-all-loops @gol -ftree-pre -ftree-ccp -ftree-dce -ftree-loop-optimize @gol --ftree-lim @gol +-ftree-lim -fivcanon @gol -ftree-dominator-opts -ftree-dse -ftree-copyrename @gol -ftree-ch -ftree-sra -ftree-ter -ftree-lrs -ftree-fre -ftree-vectorize @gol --param @var{name}=@var{value} @@ -4483,6 +4483,12 @@ operands of conditions that are invariant out of the loop, so that we can use just trivial invariantness analysis in loop unswitching. The pass also includes store motion. +@item -fivcanon +Create a canonical counter for number of iterations in the loop for that +determining number of iterations requires complicated analysis. Later +optimizations then may determine the number easily. Useful especially +in connection with unrolling. + @item -ftree-sra Perform scalar replacement of aggregates. This pass replaces structure references with scalars to prevent committing structures to memory too |