http://llvm.org/bugs/show_bug.cgi?id=11772
Bug #: 11772
Summary: [AVX2] x86 isel crash with 16-wide vector and shl
Product: new-bugs
Version: trunk
Platform: PC
OS/Version: All
Status: NEW
Severity: normal
Priority: P
Component: new bugs
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
Classification: Unclassified
Created attachment 7885
--> http://llvm.org/bugs/attachment.cgi?id=7885
test case
With top of tree and the attached test case, if I run:
% llc -mattr=+avx2 bugpoint-reduced-simplified.ll
I get this crash:
Stack dump:
0. Program arguments: llc -mattr=+avx2 bugpoint-reduced-simplified.ll
1. Running pass 'Function Pass Manager' on module
'bugpoint-reduced-simplified.ll'.
2. Running pass 'X86 DAG->DAG Instruction Selection' on function '@f_fu'
[1] 24920 segmentation fault llc -mattr=+avx2
bugpoint-reduced-simplified.ll
This compiles correctly with AVX1.
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