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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/48809] [4.4/4.5/4.6/4.7 Regression] switch statement optimization error Date: Thu, 28 Apr 2011 18:54:00 -0000 [thread overview] Message-ID: <bug-48809-4-SC9cw1vzoJ@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-48809-4@http.gcc.gnu.org/bugzilla/> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48809 Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2011.04.28 18:50:45 CC| |jakub at gcc dot gnu.org Target Milestone|--- |4.4.7 Summary|switch statement |[4.4/4.5/4.6/4.7 |optimization error |Regression] switch | |statement optimization | |error Ever Confirmed|0 |1 --- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-04-28 18:50:45 UTC --- Confirmed, goes away with -fno-tree-switch-conversion. extern void abort (void); int foo (signed char x) { int y = 0; switch (x) { case 0: y = 1; break; case 1: y = 2; break; case 2: y = 3; break; case 3: y = 4; break; case 4: y = 5; break; case 5: y = 6; break; case 6: y = 7; break; case 7: y = 8; break; case 8: y = 9; break; case 9: y = 10; break; case 10: y = 11; break; case 11: y = 12; break; case 12: y = 13; break; case 13: y = 14; break; case 14: y = 15; break; case 15: y = 16; break; case 16: y = 17; break; case 98: y = 18; break; case -62: y = 19; break; } return y; } int main () { signed char x = 98; if (foo (x) != 18) abort (); } Will look at it tomorrow.
next prev parent reply other threads:[~2011-04-28 18:54 UTC|newest] Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top 2011-04-28 18:32 [Bug c++/48809] New: " andrewcmartin at msn dot com 2011-04-28 18:35 ` [Bug c++/48809] " andrewcmartin at msn dot com 2011-04-28 18:36 ` andrewcmartin at msn dot com 2011-04-28 18:39 ` andrewcmartin at msn dot com 2011-04-28 18:54 ` jakub at gcc dot gnu.org [this message] 2011-04-29 13:40 ` [Bug c++/48809] [4.4/4.5/4.6/4.7 Regression] " jakub at gcc dot gnu.org 2011-04-30 6:55 ` jakub at gcc dot gnu.org 2011-04-30 7:01 ` jakub at gcc dot gnu.org 2011-04-30 7:36 ` [Bug c++/48809] [4.4/4.5 " jakub at gcc dot gnu.org 2011-05-03 16:43 ` [Bug testsuite/48809] " jakub at gcc dot gnu.org 2011-05-03 17:21 ` [Bug testsuite/48809] [4.4 " jakub at gcc dot gnu.org 2011-05-04 9:24 ` jakub at gcc dot gnu.org 2011-05-04 9:43 ` jakub at gcc dot gnu.org
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