在 2024/3/13 下午9:03, Xi Ruoyao 写道:
If this insn is really used, we'll have something like
slti $r4,$r0,$r5
in the code. The assembler will reject it because slti wants 2
register operands and 1 immediate operand. But we've not got any bug
report for this, indicating this define_insn is unused at all.
Note that do_store_flag (in expr.cc) is already converting x >= 1 to
x > 0 unconditionally, so this define_insn is indeed unused and we can
just remove it.
gcc/ChangeLog:
* config/loongarch/loongarch.md (any_ge): Remove.
(sge<u>_<X:mode><GPR:mode>): Remove.
---
Not fully tested but should be obvious. Ok for trunk?
LGTM!
Thanks!
gcc/config/loongarch/loongarch.md | 10 ----------
1 file changed, 10 deletions(-)
diff --git a/gcc/config/loongarch/loongarch.md
b/gcc/config/loongarch/loongarch.md
index 525e1e82183..18fd9c1e7d5 100644
--- a/gcc/config/loongarch/loongarch.md
+++ b/gcc/config/loongarch/loongarch.md
@@ -517,7 +517,6 @@ (define_code_iterator equality_op [eq ne])
;; These code iterators allow the signed and unsigned scc operations to use
;; the same template.
(define_code_iterator any_gt [gt gtu])
-(define_code_iterator any_ge [ge geu])
(define_code_iterator any_lt [lt ltu])
(define_code_iterator any_le [le leu])
@@ -3355,15 +3354,6 @@ (define_insn "*sgt<u>_<X:mode><GPR:mode>"
[(set_attr "type" "slt")
(set_attr "mode" "<X:MODE>")])
-(define_insn "*sge<u>_<X:mode><GPR:mode>"
- [(set (match_operand:GPR 0 "register_operand" "=r")
- (any_ge:GPR (match_operand:X 1 "register_operand" "r")
- (const_int 1)))]
- ""
- "slt<u>i\t%0,%.,%1"
- [(set_attr "type" "slt")
- (set_attr "mode" "<X:MODE>")])
-
(define_insn "*slt<u>_<X:mode><GPR:mode>"
[(set (match_operand:GPR 0 "register_operand" "=r")
(any_lt:GPR (match_operand:X 1 "register_operand" "r")
