Bug 413634

Summary:	ARMv8.1 arithmetic instructions are not supported
Product:	[Developer tools] valgrind	Reporter:	ahashmi <assad.hashmi>
Component:	vex	Assignee:	Julian Seward <jseward>
Status:	RESOLVED FIXED
Severity:	normal
Priority:	NOR
Version First Reported In:	3.14.0
Target Milestone:	---
Platform:	Compiled Sources
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Bug Depends on:
Bug Blocks:	414270
Attachments:	Patch implements and tests ARM v8.1 SIMD instructions

Description ahashmi 2019-10-30 14:44:09 UTC

SUMMARY
Scalar and vector forms of SQRDMLAH and SQRDMLSH are not supported.

STEPS TO REPRODUCE
Compile with -march=armv8.1-a and if the compiler generates SQRDMLAH and/or SQRDMLSH, valgrind will exit with unknown instruction error.

Comment 1 ahashmi 2019-12-12 19:33:17 UTC

Created attachment 124454 [details]
Patch implements and tests ARM v8.1 SIMD instructions

This patch adds support for AArch64 ARMv8.1 SIMD instructions:
SQRDMLAH <V><d>, <V><n>, <V><m>
SQRDMLAH <Vd>.<T>, <Vn>.<T>, <Vm>.<T>
SQRDMLAH <V><d>, <V><n>, <Vm>.<Ts>[<index>]
SQRDMLAH <Vd>.<T>, <Vn>.<T>, <Vm>.<Ts>[<index>]
SQRDMLSH <V><d>, <V><n>, <V><m>
SQRDMLSH <Vd>.<T>, <Vn>.<T>, <Vm>.<T>
SQRDMLSH <V><d>, <V><n>, <Vm>.<Ts>[<index>]
SQRDMLSH <Vd>.<T>, <Vn>.<T>, <Vm>.<Ts>[<index>]

Comment 2 Julian Seward 2019-12-27 14:36:32 UTC

Committed as a8c274d0682b7265af7a5a9c71251d48169c9dc9.
Thanks for the patch!