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From: "dcb314 at hotmail dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c/97496] New: ice during during GIMPLE pass: cddce Date: Mon, 19 Oct 2020 16:09:27 +0000 [thread overview] Message-ID: <bug-97496-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97496 Bug ID: 97496 Summary: ice during during GIMPLE pass: cddce Product: gcc Version: 11.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: dcb314 at hotmail dot com Target Milestone: --- For this C code: int a; int b[]; void c(unsigned g) { if (a) { long e = g, d = e; int f = 0; for (; f < 4; f++) { b[f] = d; d >>= 8; } } } with compiler flag -O3, does this: during GIMPLE pass: cddce bug657.c: In function ‘c’: bug657.c:3:6: internal compiler error: in mark_operand_necessary, at tree-ssa-dce.c:173 3 | void c(unsigned g) { | ^ 0x5e63bd mark_operand_necessary ../../trunk.git/gcc/tree-ssa-dce.c:173 0x5e63bd propagate_necessity ../../trunk.git/gcc/tree-ssa-dce.c:775 The problem first seems to occur sometime between 20201016 and 20201017.
next reply other threads:[~2020-10-19 16:09 UTC|newest] Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-10-19 16:09 dcb314 at hotmail dot com [this message] 2020-10-19 16:15 ` [Bug tree-optimization/97496] [11 Regression] during during GIMPLE pass: cddce since r11-4005-g6c6e0cafa38cee83 marxin at gcc dot gnu.org 2020-10-19 16:15 ` marxin at gcc dot gnu.org 2020-10-20 6:00 ` rguenth at gcc dot gnu.org 2020-10-20 7:03 ` cvs-commit at gcc dot gnu.org 2020-10-20 7:03 ` rguenth at gcc dot gnu.org
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