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Diffstat (limited to 'gcc/doc/invoke.texi')
| -rw-r--r-- | gcc/doc/invoke.texi | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 825fd66..ba18e05 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -13448,6 +13448,15 @@ by the copy loop headers pass. @item vect-epilogues-nomask Enable loop epilogue vectorization using smaller vector size. +@item vect-partial-vector-usage +Controls when the loop vectorizer considers using partial vector loads +and stores as an alternative to falling back to scalar code. 0 stops +the vectorizer from ever using partial vector loads and stores. 1 allows +partial vector loads and stores if vectorization removes the need for the +code to iterate. 2 allows partial vector loads and stores in all loops. +The parameter only has an effect on targets that support partial +vector loads and stores. + @item slp-max-insns-in-bb Maximum number of instructions in basic block to be considered for SLP vectorization. |