[ntpsec commit] Delete special Sparc v9 code for SHA1 hashing...

[Eric S. Raymond]

Module:    ntpsec
Branch:    master
Commit:    2d2517f73b61f3f1ab5244d174b528e4c0ed2e05
Changeset: http://git.ntpsec.org/ntpsec/commit/?id=2d2517f73b61f3f1ab5244d174b528e4c0ed2e05

Author:    Eric S. Raymond <esr at thyrsus.com>
Date:      Tue Sep 29 19:33:26 2015 -0400

Delete special Sparc v9 code for SHA1 hashing...

...better to have code slightly slower than code we can't verify.

---

 lib/isc/sha1.c | 76 ----------------------------------------------------------
 1 file changed, 76 deletions(-)

diff --git a/lib/isc/sha1.c b/lib/isc/sha1.c
index 2f2364d..aaef4cc 100644
--- a/lib/isc/sha1.c
+++ b/lib/isc/sha1.c
@@ -128,75 +128,6 @@ typedef union {
 	unsigned int l[16];
 } CHAR64LONG16;
 
-#ifdef __sparc_v9__
-static void do_R01(isc_uint32_t *a, isc_uint32_t *b, isc_uint32_t *c,
-		   isc_uint32_t *d, isc_uint32_t *e, CHAR64LONG16 *);
-static void do_R2(isc_uint32_t *a, isc_uint32_t *b, isc_uint32_t *c,
-		  isc_uint32_t *d, isc_uint32_t *e, CHAR64LONG16 *);
-static void do_R3(isc_uint32_t *a, isc_uint32_t *b, isc_uint32_t *c,
-		  isc_uint32_t *d, isc_uint32_t *e, CHAR64LONG16 *);
-static void do_R4(isc_uint32_t *a, isc_uint32_t *b, isc_uint32_t *c,
-		  isc_uint32_t *d, isc_uint32_t *e, CHAR64LONG16 *);
-
-#define nR0(v,w,x,y,z,i) R0(*v,*w,*x,*y,*z,i)
-#define nR1(v,w,x,y,z,i) R1(*v,*w,*x,*y,*z,i)
-#define nR2(v,w,x,y,z,i) R2(*v,*w,*x,*y,*z,i)
-#define nR3(v,w,x,y,z,i) R3(*v,*w,*x,*y,*z,i)
-#define nR4(v,w,x,y,z,i) R4(*v,*w,*x,*y,*z,i)
-
-static void
-do_R01(isc_uint32_t *a, isc_uint32_t *b, isc_uint32_t *c, isc_uint32_t *d,
-       isc_uint32_t *e, CHAR64LONG16 *block)
-{
-	nR0(a,b,c,d,e, 0); nR0(e,a,b,c,d, 1); nR0(d,e,a,b,c, 2);
-	nR0(c,d,e,a,b, 3); nR0(b,c,d,e,a, 4); nR0(a,b,c,d,e, 5);
-	nR0(e,a,b,c,d, 6); nR0(d,e,a,b,c, 7); nR0(c,d,e,a,b, 8);
-	nR0(b,c,d,e,a, 9); nR0(a,b,c,d,e,10); nR0(e,a,b,c,d,11);
-	nR0(d,e,a,b,c,12); nR0(c,d,e,a,b,13); nR0(b,c,d,e,a,14);
-	nR0(a,b,c,d,e,15); nR1(e,a,b,c,d,16); nR1(d,e,a,b,c,17);
-	nR1(c,d,e,a,b,18); nR1(b,c,d,e,a,19);
-}
-
-static void
-do_R2(isc_uint32_t *a, isc_uint32_t *b, isc_uint32_t *c, isc_uint32_t *d,
-      isc_uint32_t *e, CHAR64LONG16 *block)
-{
-	nR2(a,b,c,d,e,20); nR2(e,a,b,c,d,21); nR2(d,e,a,b,c,22);
-	nR2(c,d,e,a,b,23); nR2(b,c,d,e,a,24); nR2(a,b,c,d,e,25);
-	nR2(e,a,b,c,d,26); nR2(d,e,a,b,c,27); nR2(c,d,e,a,b,28);
-	nR2(b,c,d,e,a,29); nR2(a,b,c,d,e,30); nR2(e,a,b,c,d,31);
-	nR2(d,e,a,b,c,32); nR2(c,d,e,a,b,33); nR2(b,c,d,e,a,34);
-	nR2(a,b,c,d,e,35); nR2(e,a,b,c,d,36); nR2(d,e,a,b,c,37);
-	nR2(c,d,e,a,b,38); nR2(b,c,d,e,a,39);
-}
-
-static void
-do_R3(isc_uint32_t *a, isc_uint32_t *b, isc_uint32_t *c, isc_uint32_t *d,
-      isc_uint32_t *e, CHAR64LONG16 *block)
-{
-	nR3(a,b,c,d,e,40); nR3(e,a,b,c,d,41); nR3(d,e,a,b,c,42);
-	nR3(c,d,e,a,b,43); nR3(b,c,d,e,a,44); nR3(a,b,c,d,e,45);
-	nR3(e,a,b,c,d,46); nR3(d,e,a,b,c,47); nR3(c,d,e,a,b,48);
-	nR3(b,c,d,e,a,49); nR3(a,b,c,d,e,50); nR3(e,a,b,c,d,51);
-	nR3(d,e,a,b,c,52); nR3(c,d,e,a,b,53); nR3(b,c,d,e,a,54);
-	nR3(a,b,c,d,e,55); nR3(e,a,b,c,d,56); nR3(d,e,a,b,c,57);
-	nR3(c,d,e,a,b,58); nR3(b,c,d,e,a,59);
-}
-
-static void
-do_R4(isc_uint32_t *a, isc_uint32_t *b, isc_uint32_t *c, isc_uint32_t *d,
-      isc_uint32_t *e, CHAR64LONG16 *block)
-{
-	nR4(a,b,c,d,e,60); nR4(e,a,b,c,d,61); nR4(d,e,a,b,c,62);
-	nR4(c,d,e,a,b,63); nR4(b,c,d,e,a,64); nR4(a,b,c,d,e,65);
-	nR4(e,a,b,c,d,66); nR4(d,e,a,b,c,67); nR4(c,d,e,a,b,68);
-	nR4(b,c,d,e,a,69); nR4(a,b,c,d,e,70); nR4(e,a,b,c,d,71);
-	nR4(d,e,a,b,c,72); nR4(c,d,e,a,b,73); nR4(b,c,d,e,a,74);
-	nR4(a,b,c,d,e,75); nR4(e,a,b,c,d,76); nR4(d,e,a,b,c,77);
-	nR4(c,d,e,a,b,78); nR4(b,c,d,e,a,79);
-}
-#endif
-
 /*!
  * Hash a single 512-bit block. This is the core of the algorithm.
  */
@@ -219,12 +150,6 @@ transform(isc_uint32_t state[5], const unsigned char buffer[64]) {
 	d = state[3];
 	e = state[4];
 
-#ifdef __sparc_v9__
-	do_R01(&a, &b, &c, &d, &e, block);
-	do_R2(&a, &b, &c, &d, &e, block);
-	do_R3(&a, &b, &c, &d, &e, block);
-	do_R4(&a, &b, &c, &d, &e, block);
-#else
 	/* 4 rounds of 20 operations each. Loop unrolled. */
 	R0(a,b,c,d,e, 0); R0(e,a,b,c,d, 1); R0(d,e,a,b,c, 2); R0(c,d,e,a,b, 3);
 	R0(b,c,d,e,a, 4); R0(a,b,c,d,e, 5); R0(e,a,b,c,d, 6); R0(d,e,a,b,c, 7);
@@ -246,7 +171,6 @@ transform(isc_uint32_t state[5], const unsigned char buffer[64]) {
 	R4(c,d,e,a,b,68); R4(b,c,d,e,a,69); R4(a,b,c,d,e,70); R4(e,a,b,c,d,71);
 	R4(d,e,a,b,c,72); R4(c,d,e,a,b,73); R4(b,c,d,e,a,74); R4(a,b,c,d,e,75);
 	R4(e,a,b,c,d,76); R4(d,e,a,b,c,77); R4(c,d,e,a,b,78); R4(b,c,d,e,a,79);
-#endif
 
 	/* Add the working vars back into context.state[] */
 	state[0] += a;