[Bug middle-end/81889] [7/8 Regression] bogus warnings with -Wmaybe-uninitialized -O3

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81889 --- Comment #9 from Richard Biener --- Author: rguenth Date: Tue Dec 12 08:50:31 2017 New Revision: 255573 URL: https://gcc.gnu.org/viewcvs?rev=255573=gcc=rev Log: 2017-12-12 Richard Biener PR

[Bug middle-end/81889] [7/8 Regression] bogus warnings with -Wmaybe-uninitialized -O3

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81889 --- Comment #8 from Richard Biener --- Specifically it is PRE code hoisting hoisting (integer(kind=8)) _2 above if (_2 > 3) making it impossible to set a SSA range info on it. At cunroll time we still have somewhat useful info on other SSA

[Bug middle-end/81889] [7/8 Regression] bogus warnings with -Wmaybe-uninitialized -O3

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81889 --- Comment #7 from Richard Biener --- Created attachment 42838 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=42838=edit old non-functional patch VRP1 has figured out ranges that bound the iteration of the loop in question but there's

[Bug middle-end/81889] [7/8 Regression] bogus warnings with -Wmaybe-uninitialized -O3

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81889 --- Comment #6 from Richard Biener --- (In reply to Jeffrey A. Law from comment #5) > I wonder why forwprop doesn't simplify bb6 by pushing the RHS of the > assignment to _40 into the use of _40 in the conditional. > > I'd guess the fortran

[Bug middle-end/81889] [7/8 Regression] bogus warnings with -Wmaybe-uninitialized -O3

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81889 Jeffrey A. Law changed: What|Removed |Added CC||law at redhat dot com --- Comment #5

[Bug middle-end/81889] [7/8 Regression] bogus warnings with -Wmaybe-uninitialized -O3

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81889 Richard Biener changed: What|Removed |Added Keywords||missed-optimization

[Bug middle-end/81889] [7/8 Regression] bogus warnings with -Wmaybe-uninitialized -O3

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81889 Aldy Hernandez changed: What|Removed |Added CC||rguenth at gcc dot gnu.org --- Comment

[Bug middle-end/81889] [7/8 Regression] bogus warnings with -Wmaybe-uninitialized -O3

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81889 Aldy Hernandez changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed|

[Bug middle-end/81889] [7/8 Regression] bogus warnings with -Wmaybe-uninitialized -O3

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81889 Richard Biener changed: What|Removed |Added Target Milestone|--- |7.3 Summary|[7 Regression]