commit 907895c0f247f5667498820939b21db11788f1d4
author Christophe Lyon <christophe.lyon@linaro.org> Mon Nov 10 09:02:04 2025 +0000
committer Christophe Lyon <christophe.lyon@linaro.org> Wed Nov 12 13:43:38 2025 +0000
tree 6bfc0fddef629beaef248cb34865e383183d1c52
parent a48912e9db50915746d5fee545293e97648210bc

arm: mve: avoid invalid immediate values in vbicq_n, vorrq_n, vmvnq_n [PR122175]

A constant value with the top bit of a 16-bit const passed to vbicq_n_u16 will
generate invalid assembly.  Avoid this by masking the constant during assembly
generation.

The same applies to vorrq_n and vmvnq_n.

gcc/ChangeLog:

	PR target/122175
	* config/arm/iterators.md (asm_const_size): New mode attr.
	* config/arm/mve.md (@mve_<mve_insn>q_n_<supf><mode>): Use it.

gcc/testsuite/ChangeLog:

	PR target/122175
	* gcc.target/arm/mve/intrinsics/pr122175.c: New test.

Co-authored-by: Richard Earnshaw <rearnsha@arm.com>
(cherry picked from commit 079e570ff8899fefdc3ef3d1a81eaaa6997f5e8e)