[Bug middle-end/85989] [6/7/8/9 Regression] Incorrect result for example involving unary minus in a loop

2018-06-01 Thread rsandifo at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85989 --- Comment #4 from rsandifo at gcc dot gnu.org --- Author: rsandifo Date: Fri Jun 1 12:49:44 2018 New Revision: 261064 URL: https://gcc.gnu.org/viewcvs?rev=261064=gcc=rev Log: Fix phi backedge detection in backprop (PR85989) This PR is a

[Bug middle-end/85989] [6/7/8/9 Regression] Incorrect result for example involving unary minus in a loop

2018-05-30 Thread rsandifo at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85989 rsandifo at gcc dot gnu.org changed: What|Removed |Added Status|NEW |ASSIGNED

[Bug middle-end/85989] [6/7/8/9 Regression] Incorrect result for example involving unary minus in a loop

2018-05-30 Thread rguenth at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85989 --- Comment #2 from Richard Biener --- for (b_P5 = 0; b_P5 < 8; b_P5++) { P26 = P29; P29 = -(int)*P5; } for (b_P5 = 0; b_P5 < 3; b_P5++) { for (P29 = 0; P29 < 9; P29++) { i0 = P26; if (P26 < 0) { i0 = 0;

[Bug middle-end/85989] [6/7/8/9 Regression] Incorrect result for example involving unary minus in a loop

2018-05-30 Thread rguenth at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85989 Richard Biener changed: What|Removed |Added Priority|P3 |P2 CC|