Commit 284d2b44 authored by Mark Brown's avatar Mark Brown Committed by Will Deacon
Browse files

kselftest/arm64: Use preferred form for predicate load/stores 



The preferred form of the str/ldr for predicate registers with an immediate
of zero is to omit the zero, and the clang built in assembler rejects the
zero immediate. Drop the immediate.

Signed-off-by: default avatarMark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20221117114130.687261-1-broonie@kernel.org


Signed-off-by: default avatarWill Deacon <will@kernel.org>
parent a75df5be

tools/testing/selftests/arm64/abi/syscall-abi-asm.S

+2 −2
Original line number Diff line number Diff line
@@ -153,7 +153,7 @@ do_syscall: 
	// Only set a non-zero FFR, test patterns must be zero since the

	// syscall should clear it - this lets us handle FA64.

	ldr	x2, =ffr_in

	ldr	p0, [x2, #0]

	ldr	p0, [x2]

	ldr	x2, [x2, #0]

	cbz	x2, 2f

	wrffr	p0.b
@@ -298,7 +298,7 @@ do_syscall: 
	cbz	x2, 1f

	ldr	x2, =ffr_out

	rdffr	p0.b

	str	p0, [x2, #0]

	str	p0, [x2]

1:



	// Restore callee saved registers x19-x30