Could anyone easily point out what machine description could
match/solve this unrecognizable insn ?
I am encountering the failure when building GCC with C++ support:
../../../../../gcc/libstdc++-v3/src/c++98/tree.cc: In function
‘std::_Rb_tree_node_base*
std::_Rb_tree_rebalance_for_erase(std::_Rb_tree_node_base*,
std::_Rb_tree_node_base&)’:
../../../../../gcc/libstdc++-v3/src/c++98/tree.cc:444:3: error:
unrecognizable insn:
}
^
(insn 1366 1364 446 57 (set (reg:SI 15 %rp)
(mem/f/c:SI (mem/c:SI (reg/f:SI 0 %sp) [12 %sfp+-8 S4 A32]) [3
_141->_M_left+0 S4 A32]))
"../../../../../gcc/libstdc++-v3/src/c++98/tree.cc":145 -1
(nil))
during RTL pass: reload
Below is an excerpt from the machine description, which I thought
could match the unrecognizable insn:
(define_constraint "A"
"Symbolic address"
(ior (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")))
(match_code "symbol_ref,label_ref")
(and (match_code "const")
(match_test "GET_CODE (XEXP (op, 0)) == PLUS &&
(GET_CODE (XEXP (XEXP (op, 0), 0)) == SYMBOL_REF ||
GET_CODE (XEXP (XEXP (op, 0), 0)) == LABEL_REF) &&
CONST_INT_P (XEXP (XEXP (op, 0), 1))"))))
(define_constraint "W"
"Register indirect memory operand"
(and (match_code "mem")
(match_test "REG_P (XEXP (op, 0))")))
(define_constraint "O"
"Constant zero"
(and (match_code "const_int")
(match_test "ival == 0")))
(define_insn "movsi"
[(set (match_operand:SI 0 "nonimmediate_operand" "=r,r,r,r,W,r,A")
(match_operand:SI 1 "general_operand" " O,r,A,i,r,W,r"))]
""
"@
li8 %0, 0
cpy %0, %1
gip %0, %1
li %0, %1
st32 %1, %0
ld32 %0, %1
gip %%sr, %0; st32 %1, %%sr")
