diff options
Diffstat (limited to 'gcc/config/rs6000/rs6000.md')
| -rw-r--r-- | gcc/config/rs6000/rs6000.md | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md index 4f27f13772b..2dca269744f 100644 --- a/gcc/config/rs6000/rs6000.md +++ b/gcc/config/rs6000/rs6000.md @@ -9107,7 +9107,7 @@ FAIL; }) -;; String/block move insn. +;; String/block copy insn (source and destination must not overlap). ;; Argument 0 is the destination ;; Argument 1 is the source ;; Argument 2 is the length @@ -9120,11 +9120,31 @@ (use (match_operand:SI 3 ""))])] "" { - if (expand_block_move (operands)) + if (expand_block_move (operands, false)) DONE; else FAIL; }) + +;; String/block move insn (source and destination may overlap). +;; Argument 0 is the destination +;; Argument 1 is the source +;; Argument 2 is the length +;; Argument 3 is the alignment + +(define_expand "movmemsi" + [(parallel [(set (match_operand:BLK 0 "") + (match_operand:BLK 1 "")) + (use (match_operand:SI 2 "")) + (use (match_operand:SI 3 ""))])] + "" +{ + if (expand_block_move (operands, true)) + DONE; + else + FAIL; +}) + ;; Define insns that do load or store with update. Some of these we can ;; get by using pre-decrement or pre-increment, but the hardware can also |