ARCv2: entry: avoid a branch

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>

ARCv2: entry: avoid a branch
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
ab854bfc · Vineet Gupta · 23c0cbd0 · ab854bfc
Commit ab854bfc authored May 10, 2019 by Vineet Gupta
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arch/arc/include/asm/entry-arcv2.h arch/arc/include/asm/entry-arcv2.h +2 -3

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--- a/arch/arc/include/asm/entry-arcv2.h
+++ b/arch/arc/include/asm/entry-arcv2.h
@@ -100,12 +100,11 @@
 	; 2. Upon entry SP is always saved (for any inspection, unwinding etc),
 	;    but on return, restored only if U mode

+	lr	r9, [AUX_USER_SP]			; U mode SP
+
 	mov.nz	r9, sp
 	add.nz	r9, r9, SZ_PT_REGS - PT_sp - 4		; K mode SP
-	bnz	1f

-	lr	r9, [AUX_USER_SP]			; U mode SP
-1:
 	PUSH	r9					; SP (pt_regs->sp)

 	PUSH	fp