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Fix encoding of smulh/umulh instructions on AArch64 #7104

Merged

knn-k merged 1 commit into eclipse-omr:master from Akira1Saitoh:aarch64FixSmulh

Aug 31, 2023

Commits on Aug 31, 2023

Fix encoding of smulh/umulh instructions on AArch64

AArch64 code generator incorrectly encodes `smulh` and `umulh` instructions,
and those malformed instructions produce unexpected results.
This commit fixes encoding of those instructions and adds binary encoding
unit tests.

Issue eclipse-openj9/openj9#18057

Signed-off-by: Akira Saitoh <saiaki@jp.ibm.com>

Akira Saitoh committed Aug 31, 2023