opencl_sboxes.h: Optimize register pressure for LM hash

openwall · Oct 21, 2024 · cc89a0f · cc89a0f
1 parent be38677
commit cc89a0f
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Showing 2 changed files with 3 additions and 2 deletions.
diff --git a/run/opencl/opencl_lm_kernel_params.h b/run/opencl/opencl_lm_kernel_params.h
@@ -40,6 +40,7 @@ typedef unsigned WORD vtype;
 #endif
 
 #if defined(_NV) || __CPU__
+#define JOHN_DES_OPT_REG /* Optimize register pressure more than gate count */
 #include "opencl_sboxes.h"
 #else
 #include "opencl_sboxes-s.h"

diff --git a/run/opencl/opencl_sboxes.h b/run/opencl/opencl_sboxes.h
@@ -32,7 +32,7 @@ inline void
 s1(vtype a1, vtype a2, vtype a3, vtype a4, vtype a5, vtype a6,
    vtype *out, vtype c1, vtype c2, vtype c3, vtype c4)
 {
-#if 1 /* 23 gates by Sovyn Y. */
+#ifndef JOHN_DES_OPT_REG /* 23 gates by Sovyn Y. */
 	vtype t0  = lut3( a3,  a2,  a1, 0x29);
 	vtype t1  = lut3( a6,  a5,  t0, 0x96);
 	vtype t2  = lut3( a6,  a5,  a1, 0x35);
@@ -151,7 +151,7 @@ inline void
 s3(vtype a1, vtype a2, vtype a3, vtype a4, vtype a5, vtype a6,
    vtype *out, vtype c1, vtype c2, vtype c3, vtype c4)
 {
-#if 1 /* 24 gates by Sovyn Y. */
+#ifndef JOHN_DES_OPT_REG /* 24 gates by Sovyn Y. */
 	vtype t0  = lut3( a5,  a3,  a1, 0x37);
 	vtype t1  = lut3( a6,  a2,  t0, 0x96);
 	vtype t2  = lut3( a6,  a5,  a4, 0x63);