[Bug tree-optimization/23094] store ccp, or store copy prop misses an optimization

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=23094 Richard Biener changed: What|Removed |Added CC||herring at lanl dot gov --- Comment

[Bug tree-optimization/23094] store ccp, or store copy prop misses an optimization

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=23094 Richard Biener changed: What|Removed |Added Status|ASSIGNED|RESOLVED Known to work|

[Bug tree-optimization/23094] store ccp, or store copy prop misses an optimization

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=23094 --- Comment #18 from Richard Biener --- Author: rguenth Date: Thu Nov 23 09:05:11 2017 New Revision: 255093 URL: https://gcc.gnu.org/viewcvs?rev=255093=gcc=rev Log: 2017-11-23 Richard Biener PR

[Bug tree-optimization/23094] store ccp, or store copy prop misses an optimization

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=23094 Richard Biener changed: What|Removed |Added CC||msebor at gcc dot gnu.org --- Comment

[Bug tree-optimization/23094] store ccp, or store copy prop misses an optimization

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=23094 Richard Biener changed: What|Removed |Added Attachment #9375|0 |1 is obsolete|

[Bug tree-optimization/23094] store ccp, or store copy prop misses an optimization

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23094 Richard Guenther rguenth at gcc dot gnu.org changed: What|Removed |Added CC||unixoid2003

[Bug tree-optimization/23094] store ccp, or store copy prop misses an optimization

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23094 --- Comment #15 from Richard Guenther rguenth at gcc dot gnu.org 2012-07-06 10:06:08 UTC --- Testcase from PR53870: int f(int *a, int *b) { *a = *b; return *b; }

[Bug tree-optimization/23094] store ccp, or store copy prop misses an optimization

--- Comment #12 from rguenth at gcc dot gnu dot org 2008-08-19 09:08 --- Subject: Bug 23094 Author: rguenth Date: Tue Aug 19 09:06:54 2008 New Revision: 139226 URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=139226 Log: 2008-08-19 Richard Guenther [EMAIL PROTECTED] PR

[Bug tree-optimization/23094] store ccp, or store copy prop misses an optimization

--- Comment #13 from rguenth at gcc dot gnu dot org 2008-08-19 09:10 --- Testcase in comment #10 is fixed. For the original testcase (and the copyprop variant) I still have a SCCVN patch pending. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23094

[Bug tree-optimization/23094] store ccp, or store copy prop misses an optimization

--- Comment #11 from rguenth at gcc dot gnu dot org 2008-08-17 11:26 --- The store-ccp testcase in comment #10 is fixed by the patch for PR35972. Still the requested optimization is also performed by DOM. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23094

[Bug tree-optimization/23094] store ccp, or store copy prop misses an optimization

--- Comment #10 from rguenth at gcc dot gnu dot org 2008-03-18 15:31 --- Similar case that SCCVN could also handle (store_ccp and DOM handle this): int G; void __attribute__((noinline)) foo (int i) { if (i 0) G = 3; else G = 3; if (G != 3) link_error (); }

[Bug tree-optimization/23094] store ccp, or store copy prop misses an optimization

--- Comment #9 from rguenth at gcc dot gnu dot org 2008-03-14 19:34 --- I have a patch. But maybe trying to optimize this is a little bit expensive? -- rguenth at gcc dot gnu dot org changed: What|Removed |Added

[Bug tree-optimization/23094] store ccp, or store copy prop misses an optimization

--- Comment #8 from pinskia at gcc dot gnu dot org 2006-04-08 02:32 --- Store copy prop has the same issue, testcase: void foo (int *p, int *q, int t) { *p = t; *q = t; if (*p != 1) link_error (); } -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23094