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* [Bug tree-optimization/83541] Missed optimization with int overflow [not found] <bug-83541-4@http.gcc.gnu.org/bugzilla/> @ 2021-12-12 12:30 ` pinskia at gcc dot gnu.org 2022-01-03 9:24 ` rguenth at gcc dot gnu.org ` (2 subsequent siblings) 3 siblings, 0 replies; 4+ messages in thread From: pinskia at gcc dot gnu.org @ 2021-12-12 12:30 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83541 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Severity|normal |enhancement Keywords| |needs-bisection Known to work| |12.0 Known to fail| |11.2.0 --- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Seems to be fixed on the trunk. Folding statement: if (x_2(D) == 2147483647) Visiting conditional with predicate: if (x_2(D) == 2147483647) With known ranges x_2(D): int VARYING Predicate evaluates to: DON'T KNOW Matching expression match.pd:2077, gimple-match.c:819 Matching expression match.pd:2080, gimple-match.c:892 Matching expression match.pd:2087, gimple-match.c:952 Not folded Folding statement: _4 = x_2(D) + 1; gimple_simplified to _4 = -2147483648; Folded into: _4 = -2147483648; Folding statement: // predicted unlikely by early return (on trees) predictor. Not folded Folding PHI node: _1 = PHI <_4(3), 42(2)> Queued PHI for removal. Folds to: 42 Folding statement: return _1; Folded into: return 42; ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug tree-optimization/83541] Missed optimization with int overflow [not found] <bug-83541-4@http.gcc.gnu.org/bugzilla/> 2021-12-12 12:30 ` [Bug tree-optimization/83541] Missed optimization with int overflow pinskia at gcc dot gnu.org @ 2022-01-03 9:24 ` rguenth at gcc dot gnu.org 2022-01-12 15:28 ` cvs-commit at gcc dot gnu.org 2022-01-12 15:29 ` amacleod at redhat dot com 3 siblings, 0 replies; 4+ messages in thread From: rguenth at gcc dot gnu.org @ 2022-01-03 9:24 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83541 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |amacleod at redhat dot com --- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> --- probably the ranger equivalence stuff handles this now. Add a testcase and close the bug? ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug tree-optimization/83541] Missed optimization with int overflow [not found] <bug-83541-4@http.gcc.gnu.org/bugzilla/> 2021-12-12 12:30 ` [Bug tree-optimization/83541] Missed optimization with int overflow pinskia at gcc dot gnu.org 2022-01-03 9:24 ` rguenth at gcc dot gnu.org @ 2022-01-12 15:28 ` cvs-commit at gcc dot gnu.org 2022-01-12 15:29 ` amacleod at redhat dot com 3 siblings, 0 replies; 4+ messages in thread From: cvs-commit at gcc dot gnu.org @ 2022-01-12 15:28 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83541 --- Comment #7 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Andrew Macleod <amacleod@gcc.gnu.org>: https://gcc.gnu.org/g:75845d584f490c294d40908168e5721adc38145d commit r12-6529-g75845d584f490c294d40908168e5721adc38145d Author: Andrew MacLeod <amacleod@redhat.com> Date: Tue Jan 11 14:58:35 2022 -0500 Add testcase for PR 83541. Ranger now performs this optimzation. PR tree-optimization/83541 gcc/testsuite * g++.dg/pr83541.C: New. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug tree-optimization/83541] Missed optimization with int overflow [not found] <bug-83541-4@http.gcc.gnu.org/bugzilla/> ` (2 preceding siblings ...) 2022-01-12 15:28 ` cvs-commit at gcc dot gnu.org @ 2022-01-12 15:29 ` amacleod at redhat dot com 3 siblings, 0 replies; 4+ messages in thread From: amacleod at redhat dot com @ 2022-01-12 15:29 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83541 Andrew Macleod <amacleod at redhat dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED --- Comment #8 from Andrew Macleod <amacleod at redhat dot com> --- fixed. ^ permalink raw reply [flat|nested] 4+ messages in thread
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[not found] <bug-83541-4@http.gcc.gnu.org/bugzilla/>
2021-12-12 12:30 ` [Bug tree-optimization/83541] Missed optimization with int overflow pinskia at gcc dot gnu.org
2022-01-03 9:24 ` rguenth at gcc dot gnu.org
2022-01-12 15:28 ` cvs-commit at gcc dot gnu.org
2022-01-12 15:29 ` amacleod at redhat dot com
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