From mboxrd@z Thu Jan 1 00:00:00 1970 From: tanmoy@lanl.gov To: gcc-gnats@gcc.gnu.org Subject: optimization/3906: Internal compiler error in change_address, at emit-rtl.c:1635 Date: Tue, 31 Jul 2001 17:16:00 -0000 Message-id: <20010801000608.6924.qmail@sourceware.cygnus.com> X-SW-Source: 2001-07/msg00836.html List-Id: >Number: 3906 >Category: optimization >Synopsis: Internal compiler error in change_address, at emit-rtl.c:1635 >Confidential: no >Severity: serious >Priority: medium >Responsible: unassigned >State: open >Class: ice-on-legal-code >Submitter-Id: net >Arrival-Date: Tue Jul 31 17:16:00 PDT 2001 >Closed-Date: >Last-Modified: >Originator: Tanmoy Bhattacharya >Release: gcc version 3.0 (thread model: posix) >Organization: >Environment: SunOS 5.8 Generic_108528-06 sun4u sparc SUNW,Sun-Blade-100 configured by .../configure --prefix=... (i.e. all defaults) >Description: gcc -O -c example.c produces i.c.e as reported in synopsis. I supply a trimmed down example. Any further trimming makes the problem either go away, or leaves a code that uses variables without properly initializing them. >How-To-Repeat: gcc -O -c example.i >Fix: Turn off optimization!!!! >Release-Note: >Audit-Trail: >Unformatted: ----gnatsweb-attachment---- Content-Type: application/octet-stream; name="example.i" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="example.i" IyAxICJleGFtcGxlLmMiCmRvdWJsZSBsb2cxMCgpOwpzdHJ1Y3QgeHkgewogICAgaW50IHhsYmYs IHh1YmY7CiAgICBpbnQgeHFmOwogICAgZG91YmxlICgqeGYpICgpOwogICAgZG91YmxlIHhsYiwg eHViOwp9OwoKc3RydWN0IHogewogICAgZG91YmxlIGxiLCB1YiwgbXVsdCwgcXVhbnQ7Cn07Cgpz ZXRsaW0ocCkKICAgIHJlZ2lzdGVyIHN0cnVjdCB4eSAqcDsKewogICAgZG91YmxlIHQsIGRlbHRh LCBzaWduOwogICAgc3RydWN0IHogeiA9IHswfTsKICAgIGludCBsbWFya1s1MTJdLCBtYXJrWzUx Ml07CiAgICBkb3VibGUgbGIsIHViOwogICAgaW50IGxiZiwgdWJmOwoKICAgIGxiID0gcC0+eGxi OwogICAgdWIgPSBwLT54dWI7CiAgICBkZWx0YSA9IHViIC0gbGI7CiAgICBzaWduID0gMTsKICAg IGxiZiA9IHAtPnhsYmY7CiAgICB1YmYgPSBwLT54dWJmOwogICAgaWYgKGRlbHRhIDwgMCkgewog ICAgICAgIHNpZ24gPSAtMTsKICAgIH0KICAgIGlmIChwLT54ZiA9PSBsb2cxMCAmJiBsYiA+IDAg JiYgdWIgPiBsYikgewogICAgICAgIHNldGxvZ2xpbShsYmYsIHViZiwgbGIsIHViLCAmeik7CiAg ICB9CiAgICBpZiAoc2lnbiA+IDApIHsKICAgICAgICBwLT54dWIgPSB6LnViOwogICAgfQp9Cg==