Csaba Ringhofer has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/24940 )

Change subject: IMPALA-11917: Upgrade to GCC 15 and LLVM 22
......................................................................


Patch Set 10:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/24940/8/be/src/udf/udf.h
File be/src/udf/udf.h:

http://gerrit.cloudera.org:8080/#/c/24940/8/be/src/udf/udf.h@735
PS8, Line 735: // val16 is __int128_t, whose natural alignment is 16 bytes, but 
instances of this
             : // struct routinely live in memory that's only 8-byte aligned 
(tuple slots, UDA
             : // intermediate buffers from FunctionContext::Allocate(), etc). 
"packed" tells the
             : // compiler not to assume 16-byte alignment when generating 
loads/stores/copies for
             : // this type, avoiding SIGSEGV from misaligned SSE instructions 
(e.g. movaps).
             : struct __attribute__((packed)) DecimalVal : public 
impala_udf::AnyVal {
> This was inconsistent between x86_64 and aarch64 before:
I also vote for 2.



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I7dda730fa98ebe3825969265627a560b0c3095f9
Gerrit-Change-Number: 24940
Gerrit-PatchSet: 10
Gerrit-Owner: Michael Smith <[email protected]>
Gerrit-Reviewer: Balazs Hevele <[email protected]>
Gerrit-Reviewer: Csaba Ringhofer <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Joe McDonnell <[email protected]>
Gerrit-Reviewer: Laszlo Gaal <[email protected]>
Gerrit-Reviewer: Michael Smith <[email protected]>
Gerrit-Comment-Date: Wed, 30 Sep 2026 18:50:27 +0000
Gerrit-HasComments: Yes

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