Fixed 16-bit widening multiplies by a constant by limiting constant
matches to 16 bit constants. Applied.
PR target/54950
* config/m32c/predicates.md (m32c_const_u16_operand): New.
* config/m32c/muldiv.md: Use it.
Index: config/m32c/predicates.md
===================================================================
--- config/m32c/predicates.md (revision 192552)
+++ config/m32c/predicates.md (working copy)
@@ -293,3 +293,7 @@
(define_predicate "m32c_1mask16_operand"
(and (match_operand 0 "const_int_operand")
(match_test "m32c_const_ok_for_constraint_p(INTVAL(op), 'I',
\"Imw\")")))
+
+(define_predicate "m32c_const_u16_operand"
+ (and (match_operand 0 "const_int_operand")
+ (match_test "fprintf(stderr, \"u16=%d\\n\", INTVAL(op)),INTVAL (op) >=
0 && INTVAL (op) <= 65535")))
Index: config/m32c/muldiv.md
===================================================================
--- config/m32c/muldiv.md (revision 192552)
+++ config/m32c/muldiv.md (working copy)
@@ -108,7 +108,7 @@
(define_insn "umulhisi3_c"
[(set (match_operand:SI 0 "ra_operand" "=Rsi")
(mult:SI (zero_extend:SI (match_operand:HI 1 "mra_operand" "%0"))
- (match_operand 2 "immediate_operand" "i")))]
+ (match_operand 2 "m32c_const_u16_operand" "i")))]
""
"mulu.w\t%u2,%1"
[(set_attr "flags" "o")]
