ObjFW  Check-in [5edf0d083d]

Overview
Comment:OFMatrix4x4: Use an extra SSE register on AMD64

This gives another nice speed improvement.

Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA3-256: 5edf0d083d8cbfc4777d4814f0199b246a4741af12875a36c7f11066a50ef5e5
User & Date: js on 2023-11-06 20:17:44
Other Links: manifest | tags
Context
2023-11-09
21:09
Use named operands for __asm__ check-in: 1b22456db6 user: js tags: trunk
2023-11-06
20:17
OFMatrix4x4: Use an extra SSE register on AMD64 check-in: 5edf0d083d user: js tags: trunk
20:11
OFMatrix4x4: Fix missing vector reload in SSE check-in: 9ba7594f7b user: js tags: trunk
Changes
Hide Diffs Side-by-Side Diffs Ignore Whitespace Patch

Modified src/OFMatrix4x4.m from [b53637018a] to [a4f9a5f812].

︙
42
43
44
45
46
47
48
49




50
51
52
53
54
55
56

42
43
44
45
46
47
48

49
50
51
52
53
54
55
56
57
58
59








-
+
+
+
+









	__asm__ __volatile__ (
	    "test	%0, %0\n\t"
	    "jz		0f\n"
	    "\n\t"
	    "movaps	(%2), %%xmm0\n\t"
	    "movaps	16(%2), %%xmm1\n\t"
	    "movaps	32(%2), %%xmm2\n"
	    "movaps	32(%2), %%xmm2\n\t"
# ifdef OF_AMD64
	    "movaps	48(%2), %%xmm8\n"
# endif
	    "\n\t"
	    "0:\n\t"
	    "movaps	(%1), %%xmm3\n"
	    "\n\t"
	    "movaps	%%xmm0, %%xmm4\n\t"
	    "mulps	%%xmm3, %%xmm4\n\t"
	    "movaps	%%xmm4, (%3)\n\t"
︙
68
69
70
71
72
73
74



75

76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92



93
94
95
96
97
98
99

71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109








+
+
+

+

















+
+
+








	    "movaps	%%xmm2, %%xmm6\n\t"
	    "mulps	%%xmm3, %%xmm6\n\t"
	    "movaps	%%xmm6, (%3)\n\t"
	    "addss	4(%3), %%xmm6\n\t"
	    "addss	8(%3), %%xmm6\n\t"
	    "addss	12(%3), %%xmm6\n"
	    "\n\t"
# ifdef OF_AMD64
	    "movaps	%%xmm8, %%xmm7\n\t"
# else
	    "movaps	48(%2), %%xmm7\n\t"
# endif
	    "mulps	%%xmm3, %%xmm7\n\t"
	    "movaps	%%xmm7, (%3)\n\t"
	    "addss	4(%3), %%xmm7\n\t"
	    "addss	8(%3), %%xmm7\n\t"
	    "addss	12(%3), %%xmm7\n"
	    "\n\t"
	    "movss	%%xmm4, (%1)\n\t"
	    "movss	%%xmm5, 4(%1)\n\t"
	    "movss	%%xmm6, 8(%1)\n\t"
	    "movss	%%xmm7, 12(%1)\n"
	    "\n\t"
	    "add	$16, %1\n\t"
	    "dec	%0\n\t"
	    "jnz	0b\n"
	    : "+r"(count), "+r"(vectors)
	    : "r"(self->_values), "r"(&tmp)
	    : "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7",
# ifdef OF_AMD64
	      "xmm8",
# endif
	      "memory"
	);
}
# ifndef __clang__
#  pragma GCC pop_options
# endif
︙