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RISC-V: Update RVV integer compare simplification comments

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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.li@intel.com>

gcc/ChangeLog:

	* config/riscv/vector.md: Add comments for simplifying to vmset.

Signed-off-by: Pan Li <pan2.li@intel.com>
This commit is contained in:
Pan Li 2023-05-08 16:48:54 +08:00
parent 6cb594f3ff
commit 44564a4ab7
1 changed files with 8 additions and 1 deletions
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9
gcc/config/riscv/vector.md
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@ -8161,13 +8161,20 @@
;; -----------------------------------------------------------------------------
;; ---- 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