https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98917
Bug ID: 98917
Summary: SVE: wrong code with -O -ftree-vectorize
-msve-vector-bits=128
--param=aarch64-autovec-preference=2
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: acoplan at gcc dot gnu.org
Target Milestone: ---
Created attachment 50109
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50109&action=edit
reduced testcase
The attached C++ testcase appears to be miscompiled with -O -ftree-vectorize
-march=armv8.2-a+sve -msve-vector-bits=128
--param=aarch64-autovec-preference=2.
The testcase comes from YARPGen and is hard to reduce. It runs fine
with/without sanitizers at various optimisation levels under GCC/clang for both
x86 and aarch64 but segfaults with the above options on trunk.
