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* [Bug rtl-optimization/37617] New: gcc 4.4 regression: ICE on valid code @ 2008-09-22 20:19 edwintorok at gmail dot com 2008-09-22 20:20 ` [Bug rtl-optimization/37617] " edwintorok at gmail dot com ` (7 more replies) 0 siblings, 8 replies; 9+ messages in thread From: edwintorok at gmail dot com @ 2008-09-22 20:19 UTC (permalink / raw) To: gcc-bugs [-- Warning: decoded text below may be mangled, UTF-8 assumed --] [-- Attachment #1: Type: text/plain, Size: 1489 bytes --] I get an ICE using SVN version 140562: ~/gcc_inst/bin/gcc testcase-min.i -O1 testcase-min.i: In function test_token_dval: testcase-min.i:19: internal compiler error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. This does not happen with my previous build of gcc 4.4 SVN r140456: $ x86_64-unknown-linux-gnu-gcc-4.4.0 -O1 test.i -c $ $ ~/gcc_inst/bin/gcc -v Using built-in specs. Target: x86_64-unknown-linux-gnu Configured with: ../gcc/configure --enable-languages=c --disable-multilib --disable-bootstrap --disable-static --prefix=/home/edwin/gcc_inst/ Thread model: posix gcc version 4.4.0 20080922 (experimental) (GCC) $ x86_64-unknown-linux-gnu-gcc-4.4.0 -v Using built-in specs. Target: x86_64-unknown-linux-gnu Configured with: ../gcc/configure --enable-languages=c --disable-multilib Thread model: posix gcc version 4.4.0 20080918 (experimental) (GCC) -- Summary: gcc 4.4 regression: ICE on valid code Product: gcc Version: 4.4.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: rtl-optimization AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: edwintorok at gmail dot com GCC build triplet: x86_64-unknown-linux-gnu GCC host triplet: x86_64-unknown-linux-gnu GCC target triplet: x86_64-unknown-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37617 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug rtl-optimization/37617] gcc 4.4 regression: ICE on valid code 2008-09-22 20:19 [Bug rtl-optimization/37617] New: gcc 4.4 regression: ICE on valid code edwintorok at gmail dot com @ 2008-09-22 20:20 ` edwintorok at gmail dot com 2008-09-22 20:36 ` [Bug rtl-optimization/37617] [4.4 Regression] " rguenth at gcc dot gnu dot org ` (6 subsequent siblings) 7 siblings, 0 replies; 9+ messages in thread From: edwintorok at gmail dot com @ 2008-09-22 20:20 UTC (permalink / raw) To: gcc-bugs ------- Comment #1 from edwintorok at gmail dot com 2008-09-22 20:18 ------- /* testcase compile this with -O1 */ typedef struct TCase TCase; typedef void (*TFun) (int); typedef struct Suite Suite; void _tcase_add_test (TCase * tc, TFun tf, const char *fname, int signal, int start, int end); void _fail_unless (int result, const char *file, int line, const char *expr, ...); enum val_type { vtype_undefined, vtype_cstring, vtype_string, vtype_scope, vtype_dval, vtype_ival }; typedef struct token { union { char *string; double dval; } val; enum val_type vtype; } yystype; static int vtype_compatible (enum val_type orig, enum val_type req) { } static void test_token_dval (int _i __attribute__ ((unused))) { { int val = 0.12345; yystype tok; do { (&tok)->val.dval = (val); } while (0); _fail_unless ((vtype_compatible ((&tok)->vtype, vtype_string) ? (&tok)-> val.string : ((void *) 0)) == ((void *) 0), "../../../trunk/unit_tests/check_jsnorm.c", 150, "Assertion '" "TOKEN_GET(&tok, string) == NULL" "' failed", "token dval->string", ((void *) 0)); } } Suite * test_jsnorm_suite (void) { TCase *tc_jsnorm_gperf, *tc_jsnorm_token, *tc_jsnorm_api, *tc_jsnorm_tokenizer, *tc_jsnorm_bugs, *tc_screnc_infloop; _tcase_add_test ((tc_jsnorm_token), (test_token_dval), "" "test_token_dval" "", (0), 0, 1); } -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37617 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug rtl-optimization/37617] [4.4 Regression] ICE on valid code 2008-09-22 20:19 [Bug rtl-optimization/37617] New: gcc 4.4 regression: ICE on valid code edwintorok at gmail dot com 2008-09-22 20:20 ` [Bug rtl-optimization/37617] " edwintorok at gmail dot com @ 2008-09-22 20:36 ` rguenth at gcc dot gnu dot org 2008-09-22 21:01 ` [Bug tree-optimization/37617] " pinskia at gcc dot gnu dot org ` (5 subsequent siblings) 7 siblings, 0 replies; 9+ messages in thread From: rguenth at gcc dot gnu dot org @ 2008-09-22 20:36 UTC (permalink / raw) To: gcc-bugs -- rguenth at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |ice-on-valid-code Summary|gcc 4.4 regression: ICE on |[4.4 Regression] ICE on |valid code |valid code Target Milestone|--- |4.4.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37617 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/37617] [4.4 Regression] ICE on valid code 2008-09-22 20:19 [Bug rtl-optimization/37617] New: gcc 4.4 regression: ICE on valid code edwintorok at gmail dot com 2008-09-22 20:20 ` [Bug rtl-optimization/37617] " edwintorok at gmail dot com 2008-09-22 20:36 ` [Bug rtl-optimization/37617] [4.4 Regression] " rguenth at gcc dot gnu dot org @ 2008-09-22 21:01 ` pinskia at gcc dot gnu dot org 2008-09-22 21:11 ` pinskia at gcc dot gnu dot org ` (4 subsequent siblings) 7 siblings, 0 replies; 9+ messages in thread From: pinskia at gcc dot gnu dot org @ 2008-09-22 21:01 UTC (permalink / raw) To: gcc-bugs ------- Comment #2 from pinskia at gcc dot gnu dot org 2008-09-22 21:00 ------- This worked with: gcc version 4.4.0 20080917 (experimental) [trunk revision 140434] (GCC) But fails with: GNU C (GCC) version 4.4.0 20080922 (experimental) [trunk revision 140563] (i386-apple-darwin8.11.1) The ICE is in bitmap_insert_into_set_1. -- pinskia at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |rguenth at gcc dot gnu dot | |org, pinskia at gcc dot gnu | |dot org Component|rtl-optimization |tree-optimization http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37617 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/37617] [4.4 Regression] ICE on valid code 2008-09-22 20:19 [Bug rtl-optimization/37617] New: gcc 4.4 regression: ICE on valid code edwintorok at gmail dot com ` (2 preceding siblings ...) 2008-09-22 21:01 ` [Bug tree-optimization/37617] " pinskia at gcc dot gnu dot org @ 2008-09-22 21:11 ` pinskia at gcc dot gnu dot org 2008-10-01 13:45 ` rguenth at gcc dot gnu dot org ` (3 subsequent siblings) 7 siblings, 0 replies; 9+ messages in thread From: pinskia at gcc dot gnu dot org @ 2008-09-22 21:11 UTC (permalink / raw) To: gcc-bugs ------- Comment #3 from pinskia at gcc dot gnu dot org 2008-09-22 21:09 ------- Reduced even further and will reproduce with both LP32 and LP64 targets (as long as float is 32bits and double is 64bits): typedef union { char *string; double dval; float fval; } yystype; char *f(void) { yystype tok; tok.dval = 0; return (tok.string); } char *f1(void) { yystype tok; tok.fval = 0; return (tok.string); } --- CUT --- This was most likely introduced with the value numbering of unions. -- pinskia at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Ever Confirmed|0 |1 Last reconfirmed|0000-00-00 00:00:00 |2008-09-22 21:09:59 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37617 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/37617] [4.4 Regression] ICE on valid code 2008-09-22 20:19 [Bug rtl-optimization/37617] New: gcc 4.4 regression: ICE on valid code edwintorok at gmail dot com ` (3 preceding siblings ...) 2008-09-22 21:11 ` pinskia at gcc dot gnu dot org @ 2008-10-01 13:45 ` rguenth at gcc dot gnu dot org 2008-10-01 16:25 ` rguenth at gcc dot gnu dot org ` (2 subsequent siblings) 7 siblings, 0 replies; 9+ messages in thread From: rguenth at gcc dot gnu dot org @ 2008-10-01 13:45 UTC (permalink / raw) To: gcc-bugs ------- Comment #4 from rguenth at gcc dot gnu dot org 2008-10-01 13:44 ------- Indeed. This exposes a bug as we do not fold VIEW_CONVERT_EXPR <char *> (0.0). As we never initialize NEW_SETS for FRE we should not try to add to it. -- rguenth at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|unassigned at gcc dot gnu |rguenth at gcc dot gnu dot |dot org |org Status|NEW |ASSIGNED Last reconfirmed|2008-09-22 21:09:59 |2008-10-01 13:44:26 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37617 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/37617] [4.4 Regression] ICE on valid code 2008-09-22 20:19 [Bug rtl-optimization/37617] New: gcc 4.4 regression: ICE on valid code edwintorok at gmail dot com ` (4 preceding siblings ...) 2008-10-01 13:45 ` rguenth at gcc dot gnu dot org @ 2008-10-01 16:25 ` rguenth at gcc dot gnu dot org 2008-10-01 16:26 ` rguenth at gcc dot gnu dot org 2008-10-01 16:45 ` edwintorok at gmail dot com 7 siblings, 0 replies; 9+ messages in thread From: rguenth at gcc dot gnu dot org @ 2008-10-01 16:25 UTC (permalink / raw) To: gcc-bugs ------- Comment #5 from rguenth at gcc dot gnu dot org 2008-10-01 16:24 ------- Fixed. -- rguenth at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution| |FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37617 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/37617] [4.4 Regression] ICE on valid code 2008-09-22 20:19 [Bug rtl-optimization/37617] New: gcc 4.4 regression: ICE on valid code edwintorok at gmail dot com ` (5 preceding siblings ...) 2008-10-01 16:25 ` rguenth at gcc dot gnu dot org @ 2008-10-01 16:26 ` rguenth at gcc dot gnu dot org 2008-10-01 16:45 ` edwintorok at gmail dot com 7 siblings, 0 replies; 9+ messages in thread From: rguenth at gcc dot gnu dot org @ 2008-10-01 16:26 UTC (permalink / raw) To: gcc-bugs ------- Comment #6 from rguenth at gcc dot gnu dot org 2008-10-01 16:24 ------- Subject: Bug 37617 Author: rguenth Date: Wed Oct 1 16:23:23 2008 New Revision: 140816 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=140816 Log: 2008-10-01 Richard Guenther <rguenther@suse.de> PR tree-optimization/37617 * tree-ssa-pre.c (create_expression_by_pieces): During FRE do not add to the NEW_SETS. * gcc.c-torture/compile/pr37617.c: New testcase. Added: trunk/gcc/testsuite/gcc.c-torture/compile/pr37617.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-ssa-pre.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37617 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/37617] [4.4 Regression] ICE on valid code 2008-09-22 20:19 [Bug rtl-optimization/37617] New: gcc 4.4 regression: ICE on valid code edwintorok at gmail dot com ` (6 preceding siblings ...) 2008-10-01 16:26 ` rguenth at gcc dot gnu dot org @ 2008-10-01 16:45 ` edwintorok at gmail dot com 7 siblings, 0 replies; 9+ messages in thread From: edwintorok at gmail dot com @ 2008-10-01 16:45 UTC (permalink / raw) To: gcc-bugs ------- Comment #7 from edwintorok at gmail dot com 2008-10-01 16:43 ------- Thanks, gcc4.4 doesn't crash anymore now. -- edwintorok at gmail dot com changed: What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |VERIFIED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37617 ^ permalink raw reply [flat|nested] 9+ messages in thread
end of thread, other threads:[~2008-10-01 16:45 UTC | newest] Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2008-09-22 20:19 [Bug rtl-optimization/37617] New: gcc 4.4 regression: ICE on valid code edwintorok at gmail dot com 2008-09-22 20:20 ` [Bug rtl-optimization/37617] " edwintorok at gmail dot com 2008-09-22 20:36 ` [Bug rtl-optimization/37617] [4.4 Regression] " rguenth at gcc dot gnu dot org 2008-09-22 21:01 ` [Bug tree-optimization/37617] " pinskia at gcc dot gnu dot org 2008-09-22 21:11 ` pinskia at gcc dot gnu dot org 2008-10-01 13:45 ` rguenth at gcc dot gnu dot org 2008-10-01 16:25 ` rguenth at gcc dot gnu dot org 2008-10-01 16:26 ` rguenth at gcc dot gnu dot org 2008-10-01 16:45 ` edwintorok at gmail dot com
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