Unverified Commit 7b2d13f2 authored by Paul Burton's avatar Paul Burton
Browse files

MIPS: Remove unused MOVN & MOVZ macros 



We have macros in asm/asm.h to allow for use of the MOVN & MOVZ
instructions with compare-and-branch sequences providing compatibility
for ISA versions which don't include those instructions. However the
macros are unused, and appear to have always been unused. Delete the
dead code.

Signed-off-by: default avatarPaul Burton <paul.burton@mips.com>
Patchwork: https://patchwork.linux-mips.org/patch/20909/
Cc: linux-mips@linux-mips.org
parent 8b656253

arch/mips/include/asm/asm.h

+0 −43
Original line number Diff line number Diff line
@@ -176,49 +176,6 @@ symbol = value 


#endif /* !CONFIG_CPU_HAS_PREFETCH */



/*

 * MIPS ISA IV/V movn/movz instructions and equivalents for older CPUs.

 */

#if (_MIPS_ISA == _MIPS_ISA_MIPS1)

#define MOVN(rd, rs, rt)				\

		.set	push;				\

		.set	reorder;			\

		beqz	rt, 9f;				\

		move	rd, rs;				\

		.set	pop;				\

9:

#define MOVZ(rd, rs, rt)				\

		.set	push;				\

		.set	reorder;			\

		bnez	rt, 9f;				\

		move	rd, rs;				\

		.set	pop;				\

9:

#endif /* _MIPS_ISA == _MIPS_ISA_MIPS1 */

#if (_MIPS_ISA == _MIPS_ISA_MIPS2) || (_MIPS_ISA == _MIPS_ISA_MIPS3)

#define MOVN(rd, rs, rt)				\

		.set	push;				\

		.set	noreorder;			\

		bnezl	rt, 9f;				\

		 move	rd, rs;				\

		.set	pop;				\

9:

#define MOVZ(rd, rs, rt)				\

		.set	push;				\

		.set	noreorder;			\

		beqzl	rt, 9f;				\

		 move	rd, rs;				\

		.set	pop;				\

9:

#endif /* (_MIPS_ISA == _MIPS_ISA_MIPS2) || (_MIPS_ISA == _MIPS_ISA_MIPS3) */

#if (_MIPS_ISA == _MIPS_ISA_MIPS4 ) || (_MIPS_ISA == _MIPS_ISA_MIPS5) || \

    (_MIPS_ISA == _MIPS_ISA_MIPS32) || (_MIPS_ISA == _MIPS_ISA_MIPS64)

#define MOVN(rd, rs, rt)				\

		movn	rd, rs, rt

#define MOVZ(rd, rs, rt)				\

		movz	rd, rs, rt

#endif /* MIPS IV, MIPS V, MIPS32 or MIPS64 */



/*

 * Stack alignment

 */

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