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Optimized intkorr() and intstore(functions) for intel 64 bits.

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(Benchmarked, about 30 % faster and 50 % smaller than original)
This commit is contained in:
Monty
2016-01-30 00:11:27 +02:00
parent 2ebc2eef8a
commit 076aa182c2
2 changed files with 85 additions and 24 deletions
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12
include/myisampack.h
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@@ -52,11 +52,16 @@
(((uint32) (((const uchar*) (A))[2])) << 8) +\
(((uint32) (((const uchar*) (A))[1])) << 16) +\
(((uint32) (((const uchar*) (A))[0])) << 24)))
#ifndef HAVE_mi_uint5korr
#define mi_uint5korr(A) ((ulonglong)(((uint32) (((const uchar*) (A))[4])) +\
(((uint32) (((const uchar*) (A))[3])) << 8) +\
(((uint32) (((const uchar*) (A))[2])) << 16) +\
(((uint32) (((const uchar*) (A))[1])) << 24)) +\
(((ulonglong) (((const uchar*) (A))[0])) << 32))
#endif /* HAVE_mi_uint5korr */
#ifndef HAVE_mi_uint6korr
#define mi_uint6korr(A) ((ulonglong)(((uint32) (((const uchar*) (A))[5])) +\
(((uint32) (((const uchar*) (A))[4])) << 8) +\
(((uint32) (((const uchar*) (A))[3])) << 16) +\
@@ -64,6 +69,9 @@
(((ulonglong) (((uint32) (((const uchar*) (A))[1])) +\
(((uint32) (((const uchar*) (A))[0]) << 8)))) <<\
32))
#endif /* HAVE_mi_uint6korr */
#ifndef HAVE_mi_uint7korr
#define mi_uint7korr(A) ((ulonglong)(((uint32) (((const uchar*) (A))[6])) +\
(((uint32) (((const uchar*) (A))[5])) << 8) +\
(((uint32) (((const uchar*) (A))[4])) << 16) +\
@@ -72,6 +80,9 @@
(((uint32) (((const uchar*) (A))[1])) << 8) +\
(((uint32) (((const uchar*) (A))[0])) << 16))) <<\
32))
#endif /* HAVE_mi_uint7korr */
#ifndef HAVE_mi_uint8korr
#define mi_uint8korr(A) ((ulonglong)(((uint32) (((const uchar*) (A))[7])) +\
(((uint32) (((const uchar*) (A))[6])) << 8) +\
(((uint32) (((const uchar*) (A))[5])) << 16) +\
@@ -81,6 +92,7 @@
(((uint32) (((const uchar*) (A))[1])) << 16) +\
(((uint32) (((const uchar*) (A))[0])) << 24))) <<\
32))
#endif /* HAVE_mi_uint8korr */
/* This one is for uniformity */
#define mi_int1store(T,A) *((uchar*)(T))= (uchar) (A)