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From: "danglin at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org> To: java-prs@gcc.gnu.org Subject: [Bug middle-end/34150] ICE: output_operand: invalid expression as operand on hppa Date: Mon, 21 Jan 2008 17:47:00 -0000 [thread overview] Message-ID: <20080121174715.11992.qmail@sourceware.org> (raw) In-Reply-To: <bug-34150-12387@http.gcc.gnu.org/bugzilla/> ------- Comment #10 from danglin at gcc dot gnu dot org 2008-01-21 17:47 ------- The patch appears to fix the problem, but I think it isn't a good fix. The problem is the backend doesn't know when the LABEL_NUSES counter needs to be incorrected and when it doesn't. I think this is reload bug. We are losing LABEL_NUSES counts when a reload occurs for insns like the following: (insn 1838 1854 1615 282 (set (reg/f:SI 1154) (label_ref:SI 1897)) 46 {*pa.md:2898} (nil) (expr_list:REG_EQUIV (label_ref:SI 1897) (insn_list:REG_LABEL 1897 (nil)))) Reloads for insn # 2938 Reload 0: R1_REGS, RELOAD_FOR_INPUT_ADDRESS (opnum = 1), can't combine, secondary_reload_p reload_reg_rtx: (reg/f:SI 1 %r1) Reload 1: reload_in (SI) = (label_ref:SI 1897) GENERAL_REGS, RELOAD_FOR_INPUT (opnum = 1), can't combine reload_in_reg: (reg/f:SI 1154) reload_reg_rtx: (reg/f:SI 3 %r3 [orig:313 #ref#21#111 ] [313]) secondary_in_reload = 0 secondary_in_icode = reload_insi_r Shouldn't reload update the label uses count when it completes a reload sequence? -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34150
next prev parent reply other threads:[~2008-01-21 17:47 UTC|newest] Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top 2007-11-19 11:29 [Bug java/34150] New: " tbm at cyrius dot com 2007-11-19 11:29 ` [Bug java/34150] " tbm at cyrius dot com 2008-01-06 21:35 ` [Bug target/34150] " danglin at gcc dot gnu dot org 2008-01-06 21:59 ` dave at hiauly1 dot hia dot nrc dot ca 2008-01-06 23:27 ` [Bug middle-end/34150] " danglin at gcc dot gnu dot org 2008-01-21 0:27 ` dave at hiauly1 dot hia dot nrc dot ca 2008-01-21 17:47 ` danglin at gcc dot gnu dot org [this message] 2008-02-09 21:02 ` danglin at gcc dot gnu dot org
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