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From: Pete Gonzalez <gonz@ratloop.com> To: nobody@gcc.gnu.org Cc: gcc-prs@gcc.gnu.org, Subject: Re: inline-asm/10396: Constraint alternatives cause error " `asm' operand requires impossible reload" Date: Tue, 06 May 2003 01:16:00 -0000 [thread overview] Message-ID: <20030506011601.31909.qmail@sources.redhat.com> (raw) The following reply was made to PR inline-asm/10396; it has been noted by GNATS. From: Pete Gonzalez <gonz@ratloop.com> To: gcc-gnats@gcc.gnu.org,gcc-bugs@gcc.gnu.org,nobody@gcc.gnu.org, gcc-prs@gcc.gnu.org,gonz@ratloop.com Cc: Subject: Re: inline-asm/10396: Constraint alternatives cause error " `asm' operand requires impossible reload" Date: Mon, 05 May 2003 21:05:56 -0400 I tried the example again with the GCC 3.3 prerelease (20030428), but the "impossible reload" error is still being generated. For reference, here is the section from gcc/reload1.c which produces the error message: /* Substitute the chosen reload regs from reload_reg_rtx into the insn's body (or perhaps into the bodies of other load and store insn that we just made for reloading and that we moved the structure into). */ subst_reloads (insn); /* If this was an ASM, make sure that all the reload insns we have generated are valid. If not, give an error and delete them. */ if (asm_noperands (PATTERN (insn)) >= 0) for (p = NEXT_INSN (prev); p != next; p = NEXT_INSN (p)) if (p != insn && INSN_P (p) && GET_CODE (PATTERN (p)) != USE && (recog_memoized (p) < 0 || (extract_insn (p), ! constrain_operands (1)))) { error_for_asm (insn, "`asm' operand requires impossible reload"); delete_insn (p); } Once again, each of the constraint alternatives works fine by itself; it is only the combination of three alternatives that introduces the error.
next reply other threads:[~2003-05-06 1:16 UTC|newest] Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top 2003-05-06 1:16 Pete Gonzalez [this message] -- strict thread matches above, loose matches on Subject: below -- 2003-05-13 6:29 steven 2003-04-28 4:06 Pete Gonzalez
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