Merge branch 'WIP.x86/asm' into x86/urgent, because the topic is ready

Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 0 insertions, 74 deletions

diff --git a/arch/blackfin/lib/muldi3.S b/arch/blackfin/lib/muldi3.S
deleted file mode 100644
index abf9b2a515b2..000000000000
--- a/arch/blackfin/lib/muldi3.S
+++ /dev/null
@@ -1,74 +0,0 @@
-/*
- * Copyright 2008 Analog Devices Inc.
- *
- * Licensed under the Clear BSD license or the GPL-2 (or later)
- */
-
-.align 2
-.global ___muldi3;
-.type ___muldi3, STT_FUNC;
-
-#ifdef CONFIG_ARITHMETIC_OPS_L1
-.section .l1.text
-#else
-.text
-#endif
-
-/*
-	   R1:R0 * R3:R2
-	 = R1.h:R1.l:R0.h:R0.l * R3.h:R3.l:R2.h:R2.l
-[X]	 = (R1.h * R3.h) * 2^96
-[X]	   + (R1.h * R3.l + R1.l * R3.h) * 2^80
-[X]	   + (R1.h * R2.h + R1.l * R3.l + R3.h * R0.h) * 2^64
-[T1]	   + (R1.h * R2.l + R3.h * R0.l + R1.l * R2.h + R3.l * R0.h) * 2^48
-[T2]	   + (R1.l * R2.l + R3.l * R0.l + R0.h * R2.h) * 2^32
-[T3]	   + (R0.l * R2.h + R2.l * R0.h) * 2^16
-[T4]	   + (R0.l * R2.l)
-
-	We can discard the first three lines marked "X" since we produce
-	only a 64 bit result.  So, we need ten 16-bit multiplies.
-
-	Individual mul-acc results:
-[E1]	 =  R1.h * R2.l + R3.h * R0.l + R1.l * R2.h + R3.l * R0.h
-[E2]	 =  R1.l * R2.l + R3.l * R0.l + R0.h * R2.h
-[E3]	 =  R0.l * R2.h + R2.l * R0.h
-[E4]	 =  R0.l * R2.l
-
-	We also need to add high parts from lower-level results to higher ones:
-	E[n]c = E[n] + (E[n+1]c >> 16), where E4c := E4
-
-	One interesting property is that all parts of the result that depend
-	on the sign of the multiplication are discarded.  Those would be the
-	multiplications involving R1.h and R3.h, but only the top 16 bit of
-	the 32 bit result depend on the sign, and since R1.h and R3.h only
-	occur in E1, the top half of these results is cut off.
-	So, we can just use FU mode for all of the 16-bit multiplies, and
-	ignore questions of when to use mixed mode.  */
-
-___muldi3:
-	/* [SP] technically is part of the caller's frame, but we can
-	   use it as scratch space.  */
-	A0 = R2.H * R1.L, A1 = R2.L * R1.H (FU) || R3 = [SP + 12];	/* E1 */
-	A0 += R3.H * R0.L, A1 += R3.L * R0.H (FU) || [SP] = R4;		/* E1 */
-	A0 += A1;							/* E1 */
-	R4 = A0.w;
-	A0 = R0.l * R3.l (FU);						/* E2 */
-	A0 += R2.l * R1.l (FU);						/* E2 */
-
-	A1 = R2.L * R0.L (FU);						/* E4 */
-	R3 = A1.w;
-	A1 = A1 >> 16;							/* E3c */
-	A0 += R2.H * R0.H, A1 += R2.L * R0.H (FU);			/* E2, E3c */
-	A1 += R0.L * R2.H (FU);						/* E3c */
-	R0 = A1.w;
-	A1 = A1 >> 16;							/* E2c */
-	A0 += A1;							/* E2c */
-	R1 = A0.w;
-
-	/* low(result) = low(E3c):low(E4) */
-	R0 = PACK (R0.l, R3.l);
-	/* high(result) = E2c + (E1 << 16) */
-	R1.h = R1.h + R4.l (NS) || R4 = [SP];
-	RTS;
-
-.size ___muldi3, .-___muldi3