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* [Bug c/42993] New: simplify-rtx.c:244: Conditional jump or move depends on uninitialised value(s) @ 2010-02-07 14:32 dcb314 at hotmail dot com 2010-02-07 14:33 ` [Bug c/42993] " dcb314 at hotmail dot com ` (3 more replies) 0 siblings, 4 replies; 5+ messages in thread From: dcb314 at hotmail dot com @ 2010-02-07 14:32 UTC (permalink / raw) To: gcc-bugs I just tried to compile the Linux kernel 2.6.33-rc6 under valgrind with the C compiler version 4.5 snapshot 20100128 and valgrind said ==2968== Conditional jump or move depends on uninitialised value(s) ==2968== at 0x7A6925: delegitimize_mem_from_attrs (simplify-rtx.c:244) ==2968== by 0x961517: ix86_delegitimize_address (i386.c:10883) ==2968== by 0x93E5F6: emit_note_insn_var_location (var-tracking.c:6515) ==2968== by 0xCB84D7: htab_traverse_noresize (hashtab.c:753) ==2968== by 0x941376: emit_notes_for_changes (var-tracking.c:6741) ==2968== by 0x946A67: vt_emit_notes (var-tracking.c:7106) ==2968== by 0x94A602: variable_tracking_main (var-tracking.c:7637) ==2968== by 0x722ECA: execute_one_pass (passes.c:1561) ==2968== by 0x723154: execute_pass_list (passes.c:1616) ==2968== by 0x723166: execute_pass_list (passes.c:1617) ==2968== by 0x723166: execute_pass_list (passes.c:1617) ==2968== by 0x818C94: tree_rest_of_compilation (tree-optimize.c:413) ==2968== Line 244 of simplify-rtx.c is if (bitsize != GET_MODE_BITSIZE (mode) || (bitpos % BITS_PER_UNIT) || (toffset && !host_integerp (toffset, 0))) decl = NULL; Preprocessed source code attached. Flags -Os -g required. -- Summary: simplify-rtx.c:244: Conditional jump or move depends on uninitialised value(s) Product: gcc Version: 4.5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: dcb314 at hotmail dot com GCC host triplet: x86_64-suse-linux http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42993 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c/42993] simplify-rtx.c:244: Conditional jump or move depends on uninitialised value(s) 2010-02-07 14:32 [Bug c/42993] New: simplify-rtx.c:244: Conditional jump or move depends on uninitialised value(s) dcb314 at hotmail dot com @ 2010-02-07 14:33 ` dcb314 at hotmail dot com 2010-02-07 14:47 ` [Bug middle-end/42993] [4.5 Regression] " rguenth at gcc dot gnu dot org ` (2 subsequent siblings) 3 siblings, 0 replies; 5+ messages in thread From: dcb314 at hotmail dot com @ 2010-02-07 14:33 UTC (permalink / raw) To: gcc-bugs ------- Comment #1 from dcb314 at hotmail dot com 2010-02-07 14:33 ------- Created an attachment (id=19818) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=19818&action=view) C -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42993 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug middle-end/42993] [4.5 Regression] simplify-rtx.c:244: Conditional jump or move depends on uninitialised value(s) 2010-02-07 14:32 [Bug c/42993] New: simplify-rtx.c:244: Conditional jump or move depends on uninitialised value(s) dcb314 at hotmail dot com 2010-02-07 14:33 ` [Bug c/42993] " dcb314 at hotmail dot com @ 2010-02-07 14:47 ` rguenth at gcc dot gnu dot org 2010-02-07 15:29 ` rguenth at gcc dot gnu dot org 2010-02-07 18:13 ` dcb314 at hotmail dot com 3 siblings, 0 replies; 5+ messages in thread From: rguenth at gcc dot gnu dot org @ 2010-02-07 14:47 UTC (permalink / raw) To: gcc-bugs ------- Comment #2 from rguenth at gcc dot gnu dot org 2010-02-07 14:47 ------- Probably the same issue as PR42991. -- rguenth at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |aoliva at gcc dot gnu dot | |org Component|c |middle-end Summary|simplify-rtx.c:244: |[4.5 Regression] simplify- |Conditional jump or move |rtx.c:244: Conditional jump |depends on uninitialised |or move depends on |value(s) |uninitialised value(s) Target Milestone|--- |4.5.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42993 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug middle-end/42993] [4.5 Regression] simplify-rtx.c:244: Conditional jump or move depends on uninitialised value(s) 2010-02-07 14:32 [Bug c/42993] New: simplify-rtx.c:244: Conditional jump or move depends on uninitialised value(s) dcb314 at hotmail dot com 2010-02-07 14:33 ` [Bug c/42993] " dcb314 at hotmail dot com 2010-02-07 14:47 ` [Bug middle-end/42993] [4.5 Regression] " rguenth at gcc dot gnu dot org @ 2010-02-07 15:29 ` rguenth at gcc dot gnu dot org 2010-02-07 18:13 ` dcb314 at hotmail dot com 3 siblings, 0 replies; 5+ messages in thread From: rguenth at gcc dot gnu dot org @ 2010-02-07 15:29 UTC (permalink / raw) To: gcc-bugs ------- Comment #3 from rguenth at gcc dot gnu dot org 2010-02-07 15:29 ------- The fix for 42991 also fixes this bug. *** This bug has been marked as a duplicate of 42991 *** -- rguenth at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution| |DUPLICATE http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42993 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug middle-end/42993] [4.5 Regression] simplify-rtx.c:244: Conditional jump or move depends on uninitialised value(s) 2010-02-07 14:32 [Bug c/42993] New: simplify-rtx.c:244: Conditional jump or move depends on uninitialised value(s) dcb314 at hotmail dot com ` (2 preceding siblings ...) 2010-02-07 15:29 ` rguenth at gcc dot gnu dot org @ 2010-02-07 18:13 ` dcb314 at hotmail dot com 3 siblings, 0 replies; 5+ messages in thread From: dcb314 at hotmail dot com @ 2010-02-07 18:13 UTC (permalink / raw) To: gcc-bugs ------- Comment #4 from dcb314 at hotmail dot com 2010-02-07 18:13 ------- (In reply to comment #2) > Probably the same issue as PR42991. Does fixing 42991 also fix this problem ? I suspect it might be worth checking this. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42993 ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2010-02-07 18:13 UTC | newest] Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2010-02-07 14:32 [Bug c/42993] New: simplify-rtx.c:244: Conditional jump or move depends on uninitialised value(s) dcb314 at hotmail dot com 2010-02-07 14:33 ` [Bug c/42993] " dcb314 at hotmail dot com 2010-02-07 14:47 ` [Bug middle-end/42993] [4.5 Regression] " rguenth at gcc dot gnu dot org 2010-02-07 15:29 ` rguenth at gcc dot gnu dot org 2010-02-07 18:13 ` dcb314 at hotmail dot com
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