From: Pan Li <pan2...@intel.com>
The VMSET simplification RVV integer comparision has merged already.
This patch would like to update the comments for the cases that the
define_split will act on.
Signed-off-by: Pan Li <pan2...@intel.com>
gcc/ChangeLog:
* config/riscv/vector.md: Add comments for simplifying to vmset.
Signed-off-by: Pan Li <pan2...@intel.com>
---
gcc/config/riscv/vector.md | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/gcc/config/riscv/vector.md b/gcc/config/riscv/vector.md
index 9ccc0d6a513..9904d4ca5e2 100644
--- a/gcc/config/riscv/vector.md
+++ b/gcc/config/riscv/vector.md
@@ -8159,13 +8159,20 @@ (define_insn
"@pred_indexed_<order>store<V64T:mode><V64I:mode>"
;;
-----------------------------------------------------------------------------
;; ---- Integer Compare Instructions Simplification
;;
-----------------------------------------------------------------------------
-;; Simplify to VMCLR.m Includes:
+;; Simplify OP(V, V) Instructions to VMCLR.m Includes:
;; - 1. VMSNE
;; - 2. VMSLT
;; - 3. VMSLTU
;; - 4. VMSGT
;; - 5. VMSGTU
;;
-----------------------------------------------------------------------------
+;; Simplify OP(V, V) Instructions to VMSET.m Includes:
+;; - 1. VMSEQ
+;; - 2. VMSLE
+;; - 3. VMSLEU
+;; - 4. VMSGE
+;; - 5. VMSGEU
+;;
-----------------------------------------------------------------------------
(define_split
[(set (match_operand:VB 0 "register_operand")
(if_then_else:VB
--
2.34.1
