[IMPALA-9645] Port LLVM codegen to adapt aarch64

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: Impala 4.0.0
• Epic Color: ghx-label-14
• Assignee: zhaorenhai
• Reporter: zhaorenhai
• Created: 12/Apr/20 12:04
• Updated: 08/Jan/21 13:31
• Resolved: 13/Aug/20 02:30

Description

 On aarch64, the Lowered type  of  struct {bool, int128} is form {

{i8}, {i128} }. No padding add. This is different with x86-64, which is { {i8}

, {15*i8}, {i128} } with padding add automatically.

And here also add some type conversion between x86 and aarch64 data types.

And also add some aarch64 cpu's feature.