[Bug rtl-optimization/78590] [7 Regression] FAIL: gcc.target/aarch64/advsimd-intrinsics/vget_lane.c in change_zero_ext in combine

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78590 Segher Boessenkool changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|---

[Bug rtl-optimization/78590] [7 Regression] FAIL: gcc.target/aarch64/advsimd-intrinsics/vget_lane.c in change_zero_ext in combine

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78590 --- Comment #3 from Segher Boessenkool --- Author: segher Date: Wed Nov 30 08:24:59 2016 New Revision: 242999 URL: https://gcc.gnu.org/viewcvs?rev=242999&root=gcc&view=rev Log: combine: Don't mess with subregs of floating point (PR78590) PR7859

[Bug rtl-optimization/78590] [7 Regression] FAIL: gcc.target/aarch64/advsimd-intrinsics/vget_lane.c in change_zero_ext in combine

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78590 Segher Boessenkool changed: What|Removed |Added Status|UNCONFIRMED |ASSIGNED Last reconfirmed|

[Bug rtl-optimization/78590] [7 Regression] FAIL: gcc.target/aarch64/advsimd-intrinsics/vget_lane.c in change_zero_ext in combine

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78590 --- Comment #2 from ktkachov at gcc dot gnu.org --- I suspect we want to extend the && !paradoxical_subreg_p (XEXP (x, 0)) check to also check REG_P (SUBREG_REG (XEXP (x, 0))). The pattern processed in this case is: (set (reg:SI 80) (zero_exte

[Bug rtl-optimization/78590] [7 Regression] FAIL: gcc.target/aarch64/advsimd-intrinsics/vget_lane.c in change_zero_ext in combine

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78590 --- Comment #1 from ktkachov at gcc dot gnu.org --- In the call: x = gen_lowpart_SUBREG (mode, x); the x is: (float_truncate:HF (reg:DF 79)) and mode is SImode.

[Bug rtl-optimization/78590] [7 Regression] FAIL: gcc.target/aarch64/advsimd-intrinsics/vget_lane.c in change_zero_ext in combine

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78590 ktkachov at gcc dot gnu.org changed: What|Removed |Added Known to work||6.2.1 Target Milestone|--