Let's consider the following code snippet that retrieve the address of a label:
mylabel:
void* ptr = &&mylabel;
when compiling the above, GCC associate the label with the constraint "i".
However, I am unable to force GCC to associate symbols with the
constraint "A" that I am defining in the excerpt below:
----------------------------------------
(define_constraint "A"
"A memory address."
(and (match_code "mem")
(ior (match_test "GET_CODE (XEXP (op, 0)) == SYMBOL_REF")
(match_test "GET_CODE (XEXP (op, 0)) == LABEL_REF")
(match_test "GET_CODE (XEXP (op, 0)) == CONST"))))
(define_insn "movsi"
[(set (match_operand:SI 0 "nonimmediate_operand" "=r,r")
(match_operand:SI 1 "general_operand" "A,i"))]
""
"@
gip %0, %1
li %0, %1")
----------------------------------------------------------
GCC always choose to match the line "li %0, %1" instead of the line
"gip %0, %1".
How can I force GCC to match "gip %0, %1" for a symbol ?
