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Re: m68k bootstrapping broken
Bernardo Innocenti <bernie@develer.com> writes:
> printf.c:2451: error: insn does not satisfy its constraints:
> (insn 1379 542 543 38 (nil) (set (reg:QI 8 %a0)
> (mem:QI (plus:SI (reg/f:SI 14 %a6)
> (const_int -209 [0xffffff2f])) [0 mode S1 A8])) 37 {*m68k.md:1060} (nil)
> (nil))
This tries to move a QImode from memory to an address register. m68k.md
has this pattern for movqi:
(define_expand "movqi"
[(set (match_operand:QI 0 "nonimmediate_operand" "")
(match_operand:QI 1 "general_src_operand" ""))]
""
"")
(define_insn ""
[(set (match_operand:QI 0 "nonimmediate_operand" "=d,*a,m")
(match_operand:QI 1 "general_src_operand" "dmSi*a,di*a,dmSi"))]
"!TARGET_COLDFIRE"
"* return output_move_qimode (operands);")
And indeed this combination of operands is not allowed by the constraints.
Shouldn't the define_expand reject this in the first place, or is there
some other mechanism to tell the reload pass not to generate such an insn?
Andreas.
--
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux AG, Maxfeldstraße 5, 90409 Nürnberg, Germany
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