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* [Bug tree-optimization/107095] New: gcc.dg/vect/vect-89.c gets miscompiled by DSE @ 2022-09-30 10:42 rguenth at gcc dot gnu.org 2022-09-30 10:46 ` [Bug tree-optimization/107095] " rguenth at gcc dot gnu.org ` (2 more replies) 0 siblings, 3 replies; 4+ messages in thread From: rguenth at gcc dot gnu.org @ 2022-09-30 10:42 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107095 Bug ID: 107095 Summary: gcc.dg/vect/vect-89.c gets miscompiled by DSE Product: gcc Version: 13.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: rguenth at gcc dot gnu.org Target Milestone: --- When fully masked the loop with 256bit vectors gets optimized by FRE4 to <bb 2> [local count: 63136016]: .MASK_STORE (&tmp, 256B, { 0, -1, -1, -1, -1, -1, -1, -1 }, { 5, 5, 5, 5, 5, 5, 5, 5 }); MEM <vector(8) int> [(int *)&tmp + 32B] = { 5, 5, 5, 5, 5, 5, 5, 5 }; .MASK_STORE (&MEM <struct tmp_struct> [(void *)&tmp + 64B], 256B, { -1, 0, 0, 0, 0, 0, 0, 0 }, { 5, 5, 5, 5, 5, 5, 5, 5 }); <bb 4> [local count: 1010605809]: # i_18 = PHI <i_8(9), 0(2)> # ivtmp_3 = PHI <ivtmp_5(9), 16(2)> _1 = tmp.y[i_18]; if (_1 != 5) goto <bb 5>; [0.00%] else goto <bb 6>; [100.00%] <bb 5> [count: 0]: abort (); <bb 6> [local count: 1010605809]: i_8 = i_18 + 1; ivtmp_5 = ivtmp_3 - 1; if (ivtmp_5 != 0) goto <bb 9>; [94.12%] else goto <bb 7>; [5.88%] <bb 9> [local count: 951182190]: goto <bb 4>; [100.00%] <bb 7> [local count: 63136016]: tmp ={v} {CLOBBER(eol)}; return 0; but then DSE comes along and removes the first .MASK_STORE: Deleted dead call: .MASK_STORE (&tmp, 256B, { 0, -1, -1, -1, -1, -1, -1, -1 }, { 5, 5, 5, 5, 5, 5, 5, 5 }); ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug tree-optimization/107095] gcc.dg/vect/vect-89.c gets miscompiled by DSE 2022-09-30 10:42 [Bug tree-optimization/107095] New: gcc.dg/vect/vect-89.c gets miscompiled by DSE rguenth at gcc dot gnu.org @ 2022-09-30 10:46 ` rguenth at gcc dot gnu.org 2022-09-30 11:43 ` cvs-commit at gcc dot gnu.org 2022-09-30 11:43 ` rguenth at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: rguenth at gcc dot gnu.org @ 2022-09-30 10:46 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107095 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Ever confirmed|0 |1 Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org Last reconfirmed| |2022-09-30 Status|UNCONFIRMED |ASSIGNED --- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- Caused by a typo of mine. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug tree-optimization/107095] gcc.dg/vect/vect-89.c gets miscompiled by DSE 2022-09-30 10:42 [Bug tree-optimization/107095] New: gcc.dg/vect/vect-89.c gets miscompiled by DSE rguenth at gcc dot gnu.org 2022-09-30 10:46 ` [Bug tree-optimization/107095] " rguenth at gcc dot gnu.org @ 2022-09-30 11:43 ` cvs-commit at gcc dot gnu.org 2022-09-30 11:43 ` rguenth at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: cvs-commit at gcc dot gnu.org @ 2022-09-30 11:43 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107095 --- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Richard Biener <rguenth@gcc.gnu.org>: https://gcc.gnu.org/g:44510e44e717d9c05b0c5d197a73676a9427e32f commit r13-2981-g44510e44e717d9c05b0c5d197a73676a9427e32f Author: Richard Biener <rguenther@suse.de> Date: Fri Sep 30 12:47:22 2022 +0200 tree-optimization/107095 - fix typo in .MASK_STORE DSE handling We were using the size of the mask argument rather than the data argument for the ao_ref. PR tree-optimization/107095 * tree-ssa-dse.cc (initialize_ao_ref_for_dse): Use data arg for .MASK_STORE size. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug tree-optimization/107095] gcc.dg/vect/vect-89.c gets miscompiled by DSE 2022-09-30 10:42 [Bug tree-optimization/107095] New: gcc.dg/vect/vect-89.c gets miscompiled by DSE rguenth at gcc dot gnu.org 2022-09-30 10:46 ` [Bug tree-optimization/107095] " rguenth at gcc dot gnu.org 2022-09-30 11:43 ` cvs-commit at gcc dot gnu.org @ 2022-09-30 11:43 ` rguenth at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: rguenth at gcc dot gnu.org @ 2022-09-30 11:43 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107095 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |FIXED Status|ASSIGNED |RESOLVED --- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> --- Fixed. ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2022-09-30 11:43 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2022-09-30 10:42 [Bug tree-optimization/107095] New: gcc.dg/vect/vect-89.c gets miscompiled by DSE rguenth at gcc dot gnu.org 2022-09-30 10:46 ` [Bug tree-optimization/107095] " rguenth at gcc dot gnu.org 2022-09-30 11:43 ` cvs-commit at gcc dot gnu.org 2022-09-30 11:43 ` rguenth at gcc dot gnu.org
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