gmp: Add patch for MacOS M1/M2 machines to fix segfault (#37166)
* Add patch for MacOS M1/M2 machines to fix segfault when using gmp * Update var/spack/repos/builtin/packages/gmp/package.py Co-authored-by: Adam J. Stewart <ajstewart426@gmail.com> * Restrict patch to v6.2.1 * Update var/spack/repos/builtin/packages/gmp/package.py Co-authored-by: Adam J. Stewart <ajstewart426@gmail.com> --------- Co-authored-by: Adam J. Stewart <ajstewart426@gmail.com>
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							| @@ -0,0 +1,520 @@ | ||||
|  | ||||
| # HG changeset patch | ||||
| # User Torbjorn Granlund <tg@gmplib.org> | ||||
| # Date 1606685500 -3600 | ||||
| # Node ID 5f32dbc41afc1f8cd77af1614f0caeb24deb7d7b | ||||
| # Parent  94c84d919f83ba963ed1809f8e80c7bef32db55c | ||||
| Avoid the x18 register since it is reserved on Darwin. | ||||
|  | ||||
| diff -r 94c84d919f83 -r 5f32dbc41afc mpn/arm64/aors_n.asm | ||||
| --- a/mpn/arm64/aors_n.asm	Sat Nov 28 23:38:32 2020 +0100 | ||||
| +++ b/mpn/arm64/aors_n.asm	Sun Nov 29 22:31:40 2020 +0100 | ||||
| @@ -68,7 +68,7 @@ | ||||
|  EPILOGUE() | ||||
|  PROLOGUE(func_n) | ||||
|  	CLRCY | ||||
| -L(ent):	lsr	x18, n, #2 | ||||
| +L(ent):	lsr	x17, n, #2 | ||||
|  	tbz	n, #0, L(bx0) | ||||
|   | ||||
|  L(bx1):	ldr	x7, [up] | ||||
| @@ -77,7 +77,7 @@ | ||||
|  	str	x13, [rp],#8 | ||||
|  	tbnz	n, #1, L(b11) | ||||
|   | ||||
| -L(b01):	cbz	x18, L(ret) | ||||
| +L(b01):	cbz	x17, L(ret) | ||||
|  	ldp	x4, x5, [up,#8] | ||||
|  	ldp	x8, x9, [vp,#8] | ||||
|  	sub	up, up, #8 | ||||
| @@ -88,7 +88,7 @@ | ||||
|  	ldp	x10, x11, [vp,#8] | ||||
|  	add	up, up, #8 | ||||
|  	add	vp, vp, #8 | ||||
| -	cbz	x18, L(end) | ||||
| +	cbz	x17, L(end) | ||||
|  	b	L(top) | ||||
|   | ||||
|  L(bx0):	tbnz	n, #1, L(b10) | ||||
| @@ -101,7 +101,7 @@ | ||||
|   | ||||
|  L(b10):	ldp	x6, x7, [up] | ||||
|  	ldp	x10, x11, [vp] | ||||
| -	cbz	x18, L(end) | ||||
| +	cbz	x17, L(end) | ||||
|   | ||||
|  	ALIGN(16) | ||||
|  L(top):	ldp	x4, x5, [up,#16] | ||||
| @@ -114,8 +114,8 @@ | ||||
|  	ADDSUBC	x12, x4, x8 | ||||
|  	ADDSUBC	x13, x5, x9 | ||||
|  	stp	x12, x13, [rp],#16 | ||||
| -	sub	x18, x18, #1 | ||||
| -	cbnz	x18, L(top) | ||||
| +	sub	x17, x17, #1 | ||||
| +	cbnz	x17, L(top) | ||||
|   | ||||
|  L(end):	ADDSUBC	x12, x6, x10 | ||||
|  	ADDSUBC	x13, x7, x11 | ||||
| diff -r 94c84d919f83 -r 5f32dbc41afc mpn/arm64/aorsmul_1.asm | ||||
| --- a/mpn/arm64/aorsmul_1.asm	Sat Nov 28 23:38:32 2020 +0100 | ||||
| +++ b/mpn/arm64/aorsmul_1.asm	Sun Nov 29 22:31:40 2020 +0100 | ||||
| @@ -32,10 +32,15 @@ | ||||
|   | ||||
|  include(`../config.m4') | ||||
|   | ||||
| -C	     cycles/limb | ||||
| -C Cortex-A53	9.3-9.8 | ||||
| -C Cortex-A57	 7.0 | ||||
| -C X-Gene	 5.0 | ||||
| +C	       addmul_1        submul_1 | ||||
| +C	     cycles/limb     cycles/limb | ||||
| +C Cortex-A53	9.3-9.8		9.3-9.8 | ||||
| +C Cortex-A55    9.0-9.5		9.3-9.8 | ||||
| +C Cortex-A57	 7		 7 | ||||
| +C Cortex-A72 | ||||
| +C Cortex-A73	 6		 6 | ||||
| +C X-Gene	 5		 5 | ||||
| +C Apple M1	 1.75		 1.75 | ||||
|   | ||||
|  C NOTES | ||||
|  C  * It is possible to keep the carry chain alive between the addition blocks | ||||
| diff -r 94c84d919f83 -r 5f32dbc41afc mpn/arm64/aorsorrlshC_n.asm | ||||
| --- a/mpn/arm64/aorsorrlshC_n.asm	Sat Nov 28 23:38:32 2020 +0100 | ||||
| +++ b/mpn/arm64/aorsorrlshC_n.asm	Sun Nov 29 22:31:40 2020 +0100 | ||||
| @@ -65,14 +65,14 @@ | ||||
|   | ||||
|  ASM_START() | ||||
|  PROLOGUE(func_n) | ||||
| -	lsr	x18, n, #2 | ||||
| +	lsr	x6, n, #2 | ||||
|  	tbz	n, #0, L(bx0) | ||||
|   | ||||
|  L(bx1):	ldr	x5, [up] | ||||
|  	tbnz	n, #1, L(b11) | ||||
|   | ||||
|  L(b01):	ldr	x11, [vp] | ||||
| -	cbz	x18, L(1) | ||||
| +	cbz	x6, L(1) | ||||
|  	ldp	x8, x9, [vp,#8] | ||||
|  	lsl	x13, x11, #LSH | ||||
|  	ADDSUB(	x15, x13, x5) | ||||
| @@ -94,7 +94,7 @@ | ||||
|  	ADDSUB(	x17, x13, x5) | ||||
|  	str	x17, [rp],#8 | ||||
|  	sub	up, up, #8 | ||||
| -	cbz	x18, L(end) | ||||
| +	cbz	x6, L(end) | ||||
|  	b	L(top) | ||||
|   | ||||
|  L(bx0):	tbnz	n, #1, L(b10) | ||||
| @@ -107,7 +107,7 @@ | ||||
|  L(b10):	CLRRCY(	x9) | ||||
|  	ldp	x10, x11, [vp] | ||||
|  	sub	up, up, #16 | ||||
| -	cbz	x18, L(end) | ||||
| +	cbz	x6, L(end) | ||||
|   | ||||
|  	ALIGN(16) | ||||
|  L(top):	ldp	x4, x5, [up,#16] | ||||
| @@ -124,8 +124,8 @@ | ||||
|  	ADDSUBC(x16, x12, x4) | ||||
|  	ADDSUBC(x17, x13, x5) | ||||
|  	stp	x16, x17, [rp],#16 | ||||
| -	sub	x18, x18, #1 | ||||
| -	cbnz	x18, L(top) | ||||
| +	sub	x6, x6, #1 | ||||
| +	cbnz	x6, L(top) | ||||
|   | ||||
|  L(end):	ldp	x4, x5, [up,#16] | ||||
|  	extr	x12, x10, x9, #RSH | ||||
| diff -r 94c84d919f83 -r 5f32dbc41afc mpn/arm64/cnd_aors_n.asm | ||||
| --- a/mpn/arm64/cnd_aors_n.asm	Sat Nov 28 23:38:32 2020 +0100 | ||||
| +++ b/mpn/arm64/cnd_aors_n.asm	Sun Nov 29 22:31:40 2020 +0100 | ||||
| @@ -65,7 +65,7 @@ | ||||
|   | ||||
|  	CLRCY | ||||
|   | ||||
| -	lsr	x18, n, #2 | ||||
| +	lsr	x17, n, #2 | ||||
|  	tbz	n, #0, L(bx0) | ||||
|   | ||||
|  L(bx1):	ldr	x13, [vp] | ||||
| @@ -75,7 +75,7 @@ | ||||
|  	str	x9, [rp] | ||||
|  	tbnz	n, #1, L(b11) | ||||
|   | ||||
| -L(b01):	cbz	x18, L(rt) | ||||
| +L(b01):	cbz	x17, L(rt) | ||||
|  	ldp	x12, x13, [vp,#8] | ||||
|  	ldp	x10, x11, [up,#8] | ||||
|  	sub	up, up, #8 | ||||
| @@ -86,7 +86,7 @@ | ||||
|  L(b11):	ldp	x12, x13, [vp,#8]! | ||||
|  	ldp	x10, x11, [up,#8]! | ||||
|  	sub	rp, rp, #8 | ||||
| -	cbz	x18, L(end) | ||||
| +	cbz	x17, L(end) | ||||
|  	b	L(top) | ||||
|   | ||||
|  L(bx0):	ldp	x12, x13, [vp] | ||||
| @@ -99,7 +99,7 @@ | ||||
|  	b	L(mid) | ||||
|   | ||||
|  L(b10):	sub	rp, rp, #16 | ||||
| -	cbz	x18, L(end) | ||||
| +	cbz	x17, L(end) | ||||
|   | ||||
|  	ALIGN(16) | ||||
|  L(top):	bic	x6, x12, cnd | ||||
| @@ -116,8 +116,8 @@ | ||||
|  	ADDSUBC	x9, x11, x7 | ||||
|  	ldp	x10, x11, [up,#32]! | ||||
|  	stp	x8, x9, [rp,#32]! | ||||
| -	sub	x18, x18, #1 | ||||
| -	cbnz	x18, L(top) | ||||
| +	sub	x17, x17, #1 | ||||
| +	cbnz	x17, L(top) | ||||
|   | ||||
|  L(end):	bic	x6, x12, cnd | ||||
|  	bic	x7, x13, cnd | ||||
| diff -r 94c84d919f83 -r 5f32dbc41afc mpn/arm64/logops_n.asm | ||||
| --- a/mpn/arm64/logops_n.asm	Sat Nov 28 23:38:32 2020 +0100 | ||||
| +++ b/mpn/arm64/logops_n.asm	Sun Nov 29 22:31:40 2020 +0100 | ||||
| @@ -78,7 +78,7 @@ | ||||
|   | ||||
|  ASM_START() | ||||
|  PROLOGUE(func) | ||||
| -	lsr	x18, n, #2 | ||||
| +	lsr	x17, n, #2 | ||||
|  	tbz	n, #0, L(bx0) | ||||
|   | ||||
|  L(bx1):	ldr	x7, [up] | ||||
| @@ -88,7 +88,7 @@ | ||||
|  	str	x15, [rp],#8 | ||||
|  	tbnz	n, #1, L(b11) | ||||
|   | ||||
| -L(b01):	cbz	x18, L(ret) | ||||
| +L(b01):	cbz	x17, L(ret) | ||||
|  	ldp	x4, x5, [up,#8] | ||||
|  	ldp	x8, x9, [vp,#8] | ||||
|  	sub	up, up, #8 | ||||
| @@ -99,7 +99,7 @@ | ||||
|  	ldp	x10, x11, [vp,#8] | ||||
|  	add	up, up, #8 | ||||
|  	add	vp, vp, #8 | ||||
| -	cbz	x18, L(end) | ||||
| +	cbz	x17, L(end) | ||||
|  	b	L(top) | ||||
|   | ||||
|  L(bx0):	tbnz	n, #1, L(b10) | ||||
| @@ -110,7 +110,7 @@ | ||||
|   | ||||
|  L(b10):	ldp	x6, x7, [up] | ||||
|  	ldp	x10, x11, [vp] | ||||
| -	cbz	x18, L(end) | ||||
| +	cbz	x17, L(end) | ||||
|   | ||||
|  	ALIGN(16) | ||||
|  L(top):	ldp	x4, x5, [up,#16] | ||||
| @@ -127,8 +127,8 @@ | ||||
|  	POSTOP(	x12) | ||||
|  	POSTOP(	x13) | ||||
|  	stp	x12, x13, [rp],#16 | ||||
| -	sub	x18, x18, #1 | ||||
| -	cbnz	x18, L(top) | ||||
| +	sub	x17, x17, #1 | ||||
| +	cbnz	x17, L(top) | ||||
|   | ||||
|  L(end):	LOGOP(	x12, x6, x10) | ||||
|  	LOGOP(	x13, x7, x11) | ||||
| diff -r 94c84d919f83 -r 5f32dbc41afc mpn/arm64/lshift.asm | ||||
| --- a/mpn/arm64/lshift.asm	Sat Nov 28 23:38:32 2020 +0100 | ||||
| +++ b/mpn/arm64/lshift.asm	Sun Nov 29 22:31:40 2020 +0100 | ||||
| @@ -61,7 +61,7 @@ | ||||
|  	add	rp, rp_arg, n, lsl #3 | ||||
|  	add	up, up, n, lsl #3 | ||||
|  	sub	tnc, xzr, cnt | ||||
| -	lsr	x18, n, #2 | ||||
| +	lsr	x17, n, #2 | ||||
|  	tbz	n, #0, L(bx0) | ||||
|   | ||||
|  L(bx1):	ldr	x4, [up,#-8] | ||||
| @@ -69,7 +69,7 @@ | ||||
|   | ||||
|  L(b01):	NSHIFT	x0, x4, tnc | ||||
|  	PSHIFT	x2, x4, cnt | ||||
| -	cbnz	x18, L(gt1) | ||||
| +	cbnz	x17, L(gt1) | ||||
|  	str	x2, [rp,#-8] | ||||
|  	ret | ||||
|  L(gt1):	ldp	x4, x5, [up,#-24] | ||||
| @@ -89,7 +89,7 @@ | ||||
|  	PSHIFT	x13, x5, cnt | ||||
|  	NSHIFT	x10, x4, tnc | ||||
|  	PSHIFT	x2, x4, cnt | ||||
| -	cbnz	x18, L(gt2) | ||||
| +	cbnz	x17, L(gt2) | ||||
|  	orr	x10, x10, x13 | ||||
|  	stp	x2, x10, [rp,#-16] | ||||
|  	ret | ||||
| @@ -123,11 +123,11 @@ | ||||
|  	orr	x11, x12, x2 | ||||
|  	stp	x10, x11, [rp,#-32]! | ||||
|  	PSHIFT	x2, x4, cnt | ||||
| -L(lo0):	sub	x18, x18, #1 | ||||
| +L(lo0):	sub	x17, x17, #1 | ||||
|  L(lo3):	NSHIFT	x10, x6, tnc | ||||
|  	PSHIFT	x13, x7, cnt | ||||
|  	NSHIFT	x12, x7, tnc | ||||
| -	cbnz	x18, L(top) | ||||
| +	cbnz	x17, L(top) | ||||
|   | ||||
|  L(end):	orr	x10, x10, x13 | ||||
|  	orr	x11, x12, x2 | ||||
| diff -r 94c84d919f83 -r 5f32dbc41afc mpn/arm64/lshiftc.asm | ||||
| --- a/mpn/arm64/lshiftc.asm	Sat Nov 28 23:38:32 2020 +0100 | ||||
| +++ b/mpn/arm64/lshiftc.asm	Sun Nov 29 22:31:40 2020 +0100 | ||||
| @@ -61,7 +61,7 @@ | ||||
|  	add	rp, rp_arg, n, lsl #3 | ||||
|  	add	up, up, n, lsl #3 | ||||
|  	sub	tnc, xzr, cnt | ||||
| -	lsr	x18, n, #2 | ||||
| +	lsr	x17, n, #2 | ||||
|  	tbz	n, #0, L(bx0) | ||||
|   | ||||
|  L(bx1):	ldr	x4, [up,#-8] | ||||
| @@ -69,7 +69,7 @@ | ||||
|   | ||||
|  L(b01):	NSHIFT	x0, x4, tnc | ||||
|  	PSHIFT	x2, x4, cnt | ||||
| -	cbnz	x18, L(gt1) | ||||
| +	cbnz	x17, L(gt1) | ||||
|  	mvn	x2, x2 | ||||
|  	str	x2, [rp,#-8] | ||||
|  	ret | ||||
| @@ -90,7 +90,7 @@ | ||||
|  	PSHIFT	x13, x5, cnt | ||||
|  	NSHIFT	x10, x4, tnc | ||||
|  	PSHIFT	x2, x4, cnt | ||||
| -	cbnz	x18, L(gt2) | ||||
| +	cbnz	x17, L(gt2) | ||||
|  	eon	x10, x10, x13 | ||||
|  	mvn	x2, x2 | ||||
|  	stp	x2, x10, [rp,#-16] | ||||
| @@ -125,11 +125,11 @@ | ||||
|  	eon	x11, x12, x2 | ||||
|  	stp	x10, x11, [rp,#-32]! | ||||
|  	PSHIFT	x2, x4, cnt | ||||
| -L(lo0):	sub	x18, x18, #1 | ||||
| +L(lo0):	sub	x17, x17, #1 | ||||
|  L(lo3):	NSHIFT	x10, x6, tnc | ||||
|  	PSHIFT	x13, x7, cnt | ||||
|  	NSHIFT	x12, x7, tnc | ||||
| -	cbnz	x18, L(top) | ||||
| +	cbnz	x17, L(top) | ||||
|   | ||||
|  L(end):	eon	x10, x10, x13 | ||||
|  	eon	x11, x12, x2 | ||||
| diff -r 94c84d919f83 -r 5f32dbc41afc mpn/arm64/mul_1.asm | ||||
| --- a/mpn/arm64/mul_1.asm	Sat Nov 28 23:38:32 2020 +0100 | ||||
| +++ b/mpn/arm64/mul_1.asm	Sun Nov 29 22:31:40 2020 +0100 | ||||
| @@ -56,7 +56,7 @@ | ||||
|   | ||||
|  PROLOGUE(mpn_mul_1) | ||||
|  	adds	x4, xzr, xzr		C clear register and cy flag | ||||
| -L(com):	lsr	x18, n, #2 | ||||
| +L(com):	lsr	x17, n, #2 | ||||
|  	tbnz	n, #0, L(bx1) | ||||
|   | ||||
|  L(bx0):	mov	x11, x4 | ||||
| @@ -65,7 +65,7 @@ | ||||
|  L(b10):	ldp	x4, x5, [up] | ||||
|  	mul	x8, x4, v0 | ||||
|  	umulh	x10, x4, v0 | ||||
| -	cbz	x18, L(2) | ||||
| +	cbz	x17, L(2) | ||||
|  	ldp	x6, x7, [up,#16]! | ||||
|  	mul	x9, x5, v0 | ||||
|  	b	L(mid)-8 | ||||
| @@ -80,7 +80,7 @@ | ||||
|  	str	x9, [rp],#8 | ||||
|  	tbnz	n, #1, L(b10) | ||||
|   | ||||
| -L(b01):	cbz	x18, L(1) | ||||
| +L(b01):	cbz	x17, L(1) | ||||
|   | ||||
|  L(b00):	ldp	x6, x7, [up] | ||||
|  	mul	x8, x6, v0 | ||||
| @@ -90,8 +90,8 @@ | ||||
|  	adcs	x12, x8, x11 | ||||
|  	umulh	x11, x7, v0 | ||||
|  	add	rp, rp, #16 | ||||
| -	sub	x18, x18, #1 | ||||
| -	cbz	x18, L(end) | ||||
| +	sub	x17, x17, #1 | ||||
| +	cbz	x17, L(end) | ||||
|   | ||||
|  	ALIGN(16) | ||||
|  L(top):	mul	x8, x4, v0 | ||||
| @@ -110,8 +110,8 @@ | ||||
|  	stp	x12, x13, [rp],#32 | ||||
|  	adcs	x12, x8, x11 | ||||
|  	umulh	x11, x7, v0 | ||||
| -	sub	x18, x18, #1 | ||||
| -	cbnz	x18, L(top) | ||||
| +	sub	x17, x17, #1 | ||||
| +	cbnz	x17, L(top) | ||||
|   | ||||
|  L(end):	mul	x8, x4, v0 | ||||
|  	adcs	x13, x9, x10 | ||||
| diff -r 94c84d919f83 -r 5f32dbc41afc mpn/arm64/rsh1aors_n.asm | ||||
| --- a/mpn/arm64/rsh1aors_n.asm	Sat Nov 28 23:38:32 2020 +0100 | ||||
| +++ b/mpn/arm64/rsh1aors_n.asm	Sun Nov 29 22:31:40 2020 +0100 | ||||
| @@ -59,7 +59,7 @@ | ||||
|   | ||||
|  ASM_START() | ||||
|  PROLOGUE(func_n) | ||||
| -	lsr	x18, n, #2 | ||||
| +	lsr	x6, n, #2 | ||||
|   | ||||
|  	tbz	n, #0, L(bx0) | ||||
|   | ||||
| @@ -69,7 +69,7 @@ | ||||
|   | ||||
|  L(b01):	ADDSUB	x13, x5, x9 | ||||
|  	and	x10, x13, #1 | ||||
| -	cbz	x18, L(1) | ||||
| +	cbz	x6, L(1) | ||||
|  	ldp	x4, x5, [up],#48 | ||||
|  	ldp	x8, x9, [vp],#48 | ||||
|  	ADDSUBC	x14, x4, x8 | ||||
| @@ -80,8 +80,8 @@ | ||||
|  	ADDSUBC	x12, x4, x8 | ||||
|  	ADDSUBC	x13, x5, x9 | ||||
|  	str	x17, [rp], #24 | ||||
| -	sub	x18, x18, #1 | ||||
| -	cbz	x18, L(end) | ||||
| +	sub	x6, x6, #1 | ||||
| +	cbz	x6, L(end) | ||||
|  	b	L(top) | ||||
|   | ||||
|  L(1):	cset	x14, COND | ||||
| @@ -97,7 +97,7 @@ | ||||
|  	ldp	x8, x9, [vp],#32 | ||||
|  	ADDSUBC	x12, x4, x8 | ||||
|  	ADDSUBC	x13, x5, x9 | ||||
| -	cbz	x18, L(3) | ||||
| +	cbz	x6, L(3) | ||||
|  	ldp	x4, x5, [up,#-16] | ||||
|  	ldp	x8, x9, [vp,#-16] | ||||
|  	extr	x17, x12, x15, #1 | ||||
| @@ -117,7 +117,7 @@ | ||||
|  	ADDSUB	x12, x4, x8 | ||||
|  	ADDSUBC	x13, x5, x9 | ||||
|  	and	x10, x12, #1 | ||||
| -	cbz	x18, L(2) | ||||
| +	cbz	x6, L(2) | ||||
|  	ldp	x4, x5, [up,#-16] | ||||
|  	ldp	x8, x9, [vp,#-16] | ||||
|  	ADDSUBC	x14, x4, x8 | ||||
| @@ -134,8 +134,8 @@ | ||||
|  	ADDSUBC	x12, x4, x8 | ||||
|  	ADDSUBC	x13, x5, x9 | ||||
|  	add	rp, rp, #16 | ||||
| -	sub	x18, x18, #1 | ||||
| -	cbz	x18, L(end) | ||||
| +	sub	x6, x6, #1 | ||||
| +	cbz	x6, L(end) | ||||
|   | ||||
|  	ALIGN(16) | ||||
|  L(top):	ldp	x4, x5, [up,#-16] | ||||
| @@ -152,8 +152,8 @@ | ||||
|  	ADDSUBC	x12, x4, x8 | ||||
|  	ADDSUBC	x13, x5, x9 | ||||
|  	stp	x16, x17, [rp],#32 | ||||
| -	sub	x18, x18, #1 | ||||
| -	cbnz	x18, L(top) | ||||
| +	sub	x6, x6, #1 | ||||
| +	cbnz	x6, L(top) | ||||
|   | ||||
|  L(end):	extr	x16, x15, x14, #1 | ||||
|  	extr	x17, x12, x15, #1 | ||||
| diff -r 94c84d919f83 -r 5f32dbc41afc mpn/arm64/rshift.asm | ||||
| --- a/mpn/arm64/rshift.asm	Sat Nov 28 23:38:32 2020 +0100 | ||||
| +++ b/mpn/arm64/rshift.asm	Sun Nov 29 22:31:40 2020 +0100 | ||||
| @@ -60,7 +60,7 @@ | ||||
|  PROLOGUE(mpn_rshift) | ||||
|  	mov	rp, rp_arg | ||||
|  	sub	tnc, xzr, cnt | ||||
| -	lsr	x18, n, #2 | ||||
| +	lsr	x17, n, #2 | ||||
|  	tbz	n, #0, L(bx0) | ||||
|   | ||||
|  L(bx1):	ldr	x5, [up] | ||||
| @@ -68,7 +68,7 @@ | ||||
|   | ||||
|  L(b01):	NSHIFT	x0, x5, tnc | ||||
|  	PSHIFT	x2, x5, cnt | ||||
| -	cbnz	x18, L(gt1) | ||||
| +	cbnz	x17, L(gt1) | ||||
|  	str	x2, [rp] | ||||
|  	ret | ||||
|  L(gt1):	ldp	x4, x5, [up,#8] | ||||
| @@ -89,7 +89,7 @@ | ||||
|  	PSHIFT	x13, x4, cnt | ||||
|  	NSHIFT	x10, x5, tnc | ||||
|  	PSHIFT	x2, x5, cnt | ||||
| -	cbnz	x18, L(gt2) | ||||
| +	cbnz	x17, L(gt2) | ||||
|  	orr	x10, x10, x13 | ||||
|  	stp	x10, x2, [rp] | ||||
|  	ret | ||||
| @@ -121,11 +121,11 @@ | ||||
|  	orr	x11, x12, x2 | ||||
|  	stp	x11, x10, [rp,#32]! | ||||
|  	PSHIFT	x2, x5, cnt | ||||
| -L(lo0):	sub	x18, x18, #1 | ||||
| +L(lo0):	sub	x17, x17, #1 | ||||
|  L(lo3):	NSHIFT	x10, x7, tnc | ||||
|  	NSHIFT	x12, x6, tnc | ||||
|  	PSHIFT	x13, x6, cnt | ||||
| -	cbnz	x18, L(top) | ||||
| +	cbnz	x17, L(top) | ||||
|   | ||||
|  L(end):	orr	x10, x10, x13 | ||||
|  	orr	x11, x12, x2 | ||||
| diff -r 94c84d919f83 -r 5f32dbc41afc mpn/arm64/sqr_diag_addlsh1.asm | ||||
| --- a/mpn/arm64/sqr_diag_addlsh1.asm	Sat Nov 28 23:38:32 2020 +0100 | ||||
| +++ b/mpn/arm64/sqr_diag_addlsh1.asm	Sun Nov 29 22:31:40 2020 +0100 | ||||
| @@ -47,7 +47,7 @@ | ||||
|  ASM_START() | ||||
|  PROLOGUE(mpn_sqr_diag_addlsh1) | ||||
|  	ldr	x15, [up],#8 | ||||
| -	lsr	x18, n, #1 | ||||
| +	lsr	x14, n, #1 | ||||
|  	tbz	n, #0, L(bx0) | ||||
|   | ||||
|  L(bx1):	adds	x7, xzr, xzr | ||||
| @@ -62,8 +62,8 @@ | ||||
|  	ldr	x17, [up],#16 | ||||
|  	ldp	x6, x7, [tp],#32 | ||||
|  	umulh	x11, x15, x15 | ||||
| -	sub	x18, x18, #1 | ||||
| -	cbz	x18, L(end) | ||||
| +	sub	x14, x14, #1 | ||||
| +	cbz	x14, L(end) | ||||
|   | ||||
|  	ALIGN(16) | ||||
|  L(top):	extr	x9, x6, x5, #63 | ||||
| @@ -84,8 +84,8 @@ | ||||
|  	extr	x8, x5, x4, #63 | ||||
|  	stp	x12, x13, [rp],#16 | ||||
|  	adcs	x12, x8, x10 | ||||
| -	sub	x18, x18, #1 | ||||
| -	cbnz	x18, L(top) | ||||
| +	sub	x14, x14, #1 | ||||
| +	cbnz	x14, L(top) | ||||
|   | ||||
|  L(end):	extr	x9, x6, x5, #63 | ||||
|  	mul	x10, x17, x17 | ||||
| @@ -37,6 +37,10 @@ class Gmp(AutotoolsPackage, GNUMirrorPackage): | ||||
|     ) | ||||
|     variant("cxx", default=True, description="Enable C++ support") | ||||
| 
 | ||||
|     # avoid using register x18 on aarch64 machines to prevent segfaults | ||||
|     # https://gmplib.org/repo/gmp/raw-rev/5f32dbc41afc | ||||
|     patch("avoid-x18.diff", when="@6.2.1") | ||||
| 
 | ||||
|     # gmp's configure script seems to be broken; it sometimes misdetects | ||||
|     # shared library support. Regenerating it fixes the issue. | ||||
|     force_autoreconf = True | ||||
|   | ||||
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	 Alec Scott
					Alec Scott