https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91267
Richard Biener changed:
What|Removed |Added
Status|ASSIGNED|RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91267
--- Comment #11 from Richard Biener ---
Author: rguenth
Date: Mon Jul 29 10:10:15 2019
New Revision: 273874
URL: https://gcc.gnu.org/viewcvs?rev=273874&root=gcc&view=rev
Log:
2019-07-29 Richard Biener
PR tree-optimization/91267
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91267
--- Comment #10 from Richard Biener ---
Testing returning false which is basically what we did before (just quicker).
This may be an argument for making the lattice expandable.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91267
Richard Biener changed:
What|Removed |Added
Status|NEW |ASSIGNED
Assignee|unassigned
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91267
--- Comment #8 from Jakub Jelinek ---
The problem is in the
- old_vr = get_value_range (var);
+ old_vr = get_lattice_entry (var);
change because get_value
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91267
Jakub Jelinek changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
Last reconfirmed|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91267
--- Comment #6 from David Binderman ---
Revision 273791 seems ok, so range is now [273791, 273794].
The culprit seems to be
r273792 | rguenth | 2019-07-25 11:25:13 +0100 (Thu, 25 Jul 2019) | 64 lines
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91267
--- Comment #5 from David Binderman ---
Revision 273794 seems broken, so range is now [273788, 273794].
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91267
--- Comment #4 from David Binderman ---
Revision 273788 seems ok, so range is now [273788, 273800].
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91267
--- Comment #3 from David Binderman ---
Revision 273775 seems ok, so range is now [273775, 273800].
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91267
--- Comment #2 from David Binderman ---
Reduced C source code is
a, b;
c(f) {
char *d, *e;
while (d) {
if (f)
if (e)
g();
h(e - (d + a));
b = e - d;
d = i();
}
}
Problem seems to occur between revisions 27375
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91267
David Binderman changed:
What|Removed |Added
CC||dcb314 at hotmail dot com
--- Comment
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91267
Rainer Orth changed:
What|Removed |Added
Target Milestone|--- |10.0
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