我尝试在 OpenCL 内核上移植函数，但编译器给出了下一个错误：
cvmsErrorCompilerFailure: LLVM compiler has failed to compile a function.
这是我的内核代码：
//#pragma OPENCL EXTENSION cl_khr_byte_addressable_store : enable
//##############################################################################
// Utils function
//##############################################################################
void mmemcpy(unsigned char *dst, const unsigned char *src, size_t len) {
for (size_t i = 0; i < len; i++)
dst[i] = src[i];
}
//##############################################################################
// Tree hashing constants definition
//##############################################################################
/* tweak word T[1]: bit field starting positions */
#define SKEIN_T1_BIT(BIT) ((BIT) - 64) /* offset 64 because it's the second word */
#define SKEIN_T1_POS_TREE_LVL SKEIN_T1_BIT(112) /* bits 112..118: level in hash tree */
#define SKEIN_T1_POS_BIT_PAD SKEIN_T1_BIT(119) /* bit 119 : partial final input byte */
#define SKEIN_T1_POS_BLK_TYPE SKEIN_T1_BIT(120) /* bits 120..125: type field */
#define SKEIN_T1_POS_FIRST SKEIN_T1_BIT(126) /* bits 126 : first block flag */
#define SKEIN_T1_POS_FINAL SKEIN_T1_BIT(127) /* bit 127 : final block flag */
/* tweak word T[1]: flag bit definition(s) */
#define SKEIN_T1_FLAG_FIRST (((unsigned long) 1 ) << SKEIN_T1_POS_FIRST)
#define SKEIN_T1_FLAG_FINAL (((unsigned long) 1 ) << SKEIN_T1_POS_FINAL)
#define SKEIN_T1_FLAG_BIT_PAD (((unsigned long) 1 ) << SKEIN_T1_POS_BIT_PAD)
//##############################################################################
// Skein macros
//##############################################################################
#ifndef RotL_64
#define RotL_64(x, N) (((x) << (N)) | ((x) >> (64-(N))))
#endif
//##############################################################################
// Skein block
//##############################################################################
#ifndef SKEIN_USE_ASM
#define SKEIN_USE_ASM (0) /* default is all C code (no ASM) */
#endif
#ifndef SKEIN_LOOP
#define SKEIN_LOOP 001 /* default: unroll 256 and 512, but not 1024 */
#endif
#define BLK_BITS (WCNT*64) /* some useful definitions for code here */
#define KW_TWK_BASE (0)
#define KW_KEY_BASE (3)
#define ks (kw + KW_KEY_BASE)
#define ts (kw + KW_TWK_BASE)
//##############################################################################
// Port settings
//##############################################################################
/* Platform settings */
#define IS_BIG_ENDIAN 4321 /* byte 0 is most significant (mc68k) */
#define IS_LITTLE_ENDIAN 1234 /* byte 0 is least significant (i386) */
/* Define platfor here */
#define PLATFORM_BYTE_ORDER IS_LITTLE_ENDIAN
#if PLATFORM_BYTE_ORDER == IS_BIG_ENDIAN
/* here for big-endian */
#define SKEIN_NEED_SWAP (1)
#elif PLATFORM_BYTE_ORDER == IS_LITTLE_ENDIAN
/* here for little-endian */
#define SKEIN_NEED_SWAP (0)
#if PLATFORM_MUST_ALIGN == 0 /* ok to use "fast" versions? */
#define Skein_Put64_LSB_First(dst08, src64, bCnt) mmemcpy(dst08, src64, bCnt)
#define Skein_Get64_LSB_First(dst64, src08, wCnt) mmemcpy(dst64, src08, 8*(wCnt))
#endif
#endif
//##############################################################################
// Skein.h
//##############################################################################
enum {
/* Skein_256 round rotation constants */
R_256_0_0=14, R_256_0_1=16,
R_256_1_0=52, R_256_1_1=57,
R_256_2_0=23, R_256_2_1=40,
R_256_3_0= 5, R_256_3_1=37,
R_256_4_0=25, R_256_4_1=33,
R_256_5_0=46, R_256_5_1=12,
R_256_6_0=58, R_256_6_1=22,
R_256_7_0=32, R_256_7_1=32,
/* Skein_512 round rotation constants */
R_512_0_0=46, R_512_0_1=36, R_512_0_2=19, R_512_0_3=37,
R_512_1_0=33, R_512_1_1=27, R_512_1_2=14, R_512_1_3=42,
R_512_2_0=17, R_512_2_1=49, R_512_2_2=36, R_512_2_3=39,
R_512_3_0=44, R_512_3_1= 9, R_512_3_2=54, R_512_3_3=56,
R_512_4_0=39, R_512_4_1=30, R_512_4_2=34, R_512_4_3=24,
R_512_5_0=13, R_512_5_1=50, R_512_5_2=10, R_512_5_3=17,
R_512_6_0=25, R_512_6_1=29, R_512_6_2=39, R_512_6_3=43,
R_512_7_0= 8, R_512_7_1=35, R_512_7_2=56, R_512_7_3=22,
/* Skein1024 round rotation constants */
R1024_0_0=24, R1024_0_1=13, R1024_0_2= 8, R1024_0_3=47, R1024_0_4= 8, R1024_0_5=17, R1024_0_6=22, R1024_0_7=37,
R1024_1_0=38, R1024_1_1=19, R1024_1_2=10, R1024_1_3=55, R1024_1_4=49, R1024_1_5=18, R1024_1_6=23, R1024_1_7=52,
R1024_2_0=33, R1024_2_1= 4, R1024_2_2=51, R1024_2_3=13, R1024_2_4=34, R1024_2_5=41, R1024_2_6=59, R1024_2_7=17,
R1024_3_0= 5, R1024_3_1=20, R1024_3_2=48, R1024_3_3=41, R1024_3_4=47, R1024_3_5=28, R1024_3_6=16, R1024_3_7=25,
R1024_4_0=41, R1024_4_1= 9, R1024_4_2=37, R1024_4_3=31, R1024_4_4=12, R1024_4_5=47, R1024_4_6=44, R1024_4_7=30,
R1024_5_0=16, R1024_5_1=34, R1024_5_2=56, R1024_5_3=51, R1024_5_4= 4, R1024_5_5=53, R1024_5_6=42, R1024_5_7=41,
R1024_6_0=31, R1024_6_1=44, R1024_6_2=47, R1024_6_3=46, R1024_6_4=19, R1024_6_5=42, R1024_6_6=44, R1024_6_7=25,
R1024_7_0= 9, R1024_7_1=48, R1024_7_2=35, R1024_7_3=52, R1024_7_4=23, R1024_7_5=31, R1024_7_6=37, R1024_7_7=20
};
#ifndef SKEIN_ID_STRING_LE /* allow compile-time personalization */
#define SKEIN_ID_STRING_LE (0x33414853) /* "SHA3" (little-endian)*/
#endif
#define SKEIN_MK_64(hi32,lo32) ((lo32) + (((unsigned long) (hi32)) << 32))
#define SKEIN_SCHEMA_VER SKEIN_MK_64(SKEIN_VERSION,SKEIN_ID_STRING_LE)
#define SKEIN_KS_PARITY SKEIN_MK_64(0x1BD11BDA,0xA9FC1A22)
//##############################################################################
// Skein structures
//##############################################################################
enum {
SKEIN_SUCCESS = 0, /* return codes from Skein calls */
SKEIN_FAIL = 1,
SKEIN_BAD_HASHLEN = 2
};
#define SKEIN_MODIFIER_WORDS ( 2) /* number of modifier (tweak) words */
#define SKEIN_256_STATE_WORDS ( 4)
#define SKEIN_512_STATE_WORDS ( 8)
#define SKEIN1024_STATE_WORDS (16)
#define SKEIN_MAX_STATE_WORDS (16)
#define SKEIN_256_STATE_BYTES ( 8*SKEIN_256_STATE_WORDS)
#define SKEIN_512_STATE_BYTES ( 8*SKEIN_512_STATE_WORDS)
#define SKEIN1024_STATE_BYTES ( 8*SKEIN1024_STATE_WORDS)
#define SKEIN_256_STATE_BITS (64*SKEIN_256_STATE_WORDS)
#define SKEIN_512_STATE_BITS (64*SKEIN_512_STATE_WORDS)
#define SKEIN1024_STATE_BITS (64*SKEIN1024_STATE_WORDS)
#define SKEIN_256_BLOCK_BYTES ( 8*SKEIN_256_STATE_WORDS)
#define SKEIN_512_BLOCK_BYTES ( 8*SKEIN_512_STATE_WORDS)
#define SKEIN1024_BLOCK_BYTES ( 8*SKEIN1024_STATE_WORDS)
#define SKEIN_256_ROUNDS_TOTAL (72) /* number of rounds for the different block sizes */
#define SKEIN_512_ROUNDS_TOTAL (72)
#define SKEIN1024_ROUNDS_TOTAL (80)
typedef struct {
unsigned long hashBitLen; /* size of hash result, in bits */
unsigned long bCnt; /* current byte count in buffer b[] */
unsigned long T[SKEIN_MODIFIER_WORDS]; /* tweak words: T[0]=byte cnt, T[1]=flags */
} Skein_Ctxt_Hdr_t;
typedef struct { /* 256-bit Skein hash context structure */
Skein_Ctxt_Hdr_t h; /* common header context variables */
unsigned long X[SKEIN_256_STATE_WORDS]; /* chaining variables */
unsigned char b[SKEIN_256_BLOCK_BYTES]; /* partial block buffer (8-byte aligned) */
} Skein_256_Ctxt_t;
//##############################################################################
// 256-bit Skein
//##############################################################################
/***************************** Skein_256 ******************************/
void Skein_256_Process_Block(Skein_256_Ctxt_t *ctx, const unsigned *blkPtr, unsigned long blkCnt, unsigned long byteCntAdd) { /* do it in C */
enum {
WCNT = SKEIN_256_STATE_WORDS
};
#undef RCNT
#define RCNT (SKEIN_256_ROUNDS_TOTAL/8)
#ifdef SKEIN_LOOP /* configure how much to unroll the loop */
#define SKEIN_UNROLL_256 (((SKEIN_LOOP)/100)%10)
#else
#define SKEIN_UNROLL_256 (0)
#endif
#if SKEIN_UNROLL_256
#if (RCNT % SKEIN_UNROLL_256)
#error "Invalid SKEIN_UNROLL_256" /* sanity check on unroll count */
#endif
unsigned long r;
unsigned long kw[WCNT+4+RCNT*2]; /* key schedule words : chaining vars + tweak + "rotation"*/
#else
unsigned long kw[WCNT+4]; /* key schedule words : chaining vars + tweak */
#endif
unsigned long X0, X1, X2, X3; /* local copy of context vars, for speed */
unsigned long w[WCNT]; /* local copy of input block */
/* never call with blkCnt == 0! */
if (!(blkCnt != 0))
return;
ts[0] = ctx->h.T[0];
ts[1] = ctx->h.T[1];
do {
/* this implementation only supports 2**64 input bytes (no carry out here) */
ts[0] += byteCntAdd; /* update processed length */
/* precompute the key schedule for this block */
ks[0] = ctx->X[0];
ks[1] = ctx->X[1];
ks[2] = ctx->X[2];
ks[3] = ctx->X[3];
ks[4] = ks[0] ^ ks[1] ^ ks[2] ^ ks[3] ^ SKEIN_KS_PARITY;
ts[2] = ts[0] ^ ts[1];
Skein_Get64_LSB_First(w, blkPtr, WCNT); /* get input block in little-endian format */
X0 = w[0] + ks[0]; /* do the first full key injection */
X1 = w[1] + ks[1] + ts[0];
X2 = w[2] + ks[2] + ts[1];
X3 = w[3] + ks[3];
blkPtr += SKEIN_256_BLOCK_BYTES;
/* run the rounds */
// IN THIS MACRO WHEN I EXCHANGED X##p1 and X##p in RotL_64 for numbers 1, 2, THEN COMPILATION IS OK
#define Round256(p0, p1, p2, p3, ROT, rNum) \
X##p0 += X##p1; X##p1 = RotL_64(X##p1, ROT##_0); X##p1 ^= X##p0; \
X##p2 += X##p3; X##p3 = RotL_64(X##p3, ROT##_1); X##p3 ^= X##p2; \
#if SKEIN_UNROLL_256 == 0
#define R256(p0, p1, p2, p3, ROT, rNum) /* fully unrolled */ \
Round256(p0, p1, p2, p3, ROT, rNum)
#define I256(R) \
X0 += ks[((R)+1) % 5]; /* inject the key schedule value */ \
X1 += ks[((R)+2) % 5] + ts[((R)+1) % 3]; \
X2 += ks[((R)+3) % 5] + ts[((R)+2) % 3]; \
X3 += ks[((R)+4) % 5] + (R)+1;
#else /* looping version */
#define R256(p0, p1, p2, p3, ROT, rNum) \
Round256(p0, p1, p2, p3, ROT, rNum) \
#define I256(R) \
X0 += ks[r+(R)+0]; /* inject the key schedule value */ \
X1 += ks[r+(R)+1] + ts[r+(R)+0]; \
X2 += ks[r+(R)+2] + ts[r+(R)+1]; \
X3 += ks[r+(R)+3] + r+(R) ; \
ks[r + (R)+4 ] = ks[r+(R)-1]; /* rotate key schedule */\
ts[r + (R)+2 ] = ts[r+(R)-1];
for (r = 1; r < 2*RCNT; r += 2*SKEIN_UNROLL_256) /* loop thru it */
#endif
{
#define R256_8_rounds(R) \
R256(0,1,2,3,R_256_0,8*(R) + 1); \
R256(0,3,2,1,R_256_1,8*(R) + 2); \
R256(0,1,2,3,R_256_2,8*(R) + 3); \
R256(0,3,2,1,R_256_3,8*(R) + 4); \
I256(2*(R)); \
R256(0,1,2,3,R_256_4,8*(R) + 5); \
R256(0,3,2,1,R_256_5,8*(R) + 6); \
R256(0,1,2,3,R_256_6,8*(R) + 7); \
R256(0,3,2,1,R_256_7,8*(R) + 8); \
I256(2*(R)+1);
R256_8_rounds( 0);
#define R256_Unroll_R(NN) ((SKEIN_UNROLL_256 == 0 && SKEIN_256_ROUNDS_TOTAL/8 > (NN)) || (SKEIN_UNROLL_256 > (NN)))
#if R256_Unroll_R( 1)
R256_8_rounds( 1);
#endif
#if R256_Unroll_R( 2)
R256_8_rounds( 2);
#endif
#if R256_Unroll_R( 3)
R256_8_rounds( 3);
#endif
#if R256_Unroll_R( 4)
R256_8_rounds( 4);
#endif
#if R256_Unroll_R( 5)
R256_8_rounds( 5);
#endif
#if R256_Unroll_R( 6)
R256_8_rounds( 6);
#endif
#if R256_Unroll_R( 7)
R256_8_rounds( 7);
#endif
#if R256_Unroll_R( 8)
R256_8_rounds( 8);
#endif
#if R256_Unroll_R( 9)
R256_8_rounds( 9);
#endif
#if R256_Unroll_R(10)
R256_8_rounds(10);
#endif
#if R256_Unroll_R(11)
R256_8_rounds(11);
#endif
#if R256_Unroll_R(12)
R256_8_rounds(12);
#endif
#if R256_Unroll_R(13)
R256_8_rounds(13);
#endif
#if R256_Unroll_R(14)
R256_8_rounds(14);
#endif
#if (SKEIN_UNROLL_256 > 14)
#error "need more unrolling in Skein_256_Process_Block"
#endif
}
// WHEN I COMMENT NEXT 4 LINES, THEN COMPILATION IS OK
ctx->X[0] = X0 ^ w[0];
ctx->X[1] = X1 ^ w[1];
ctx->X[2] = X2 ^ w[2];
ctx->X[3] = X3 ^ w[3];
ts[1] &= ~SKEIN_T1_FLAG_FIRST;
}
while (--blkCnt);
ctx->h.T[0] = ts[0];
ctx->h.T[1] = ts[1];
}
__kernel void update( __global Skein_256_Ctxt_t *gctx) {
int glId = get_global_id(0);
int lId = get_local_id(0);
int grId = get_group_id(0);
// TODO now is one hashState per block, try one hs per thread to accelerate computing
gctx += grId;
Skein_256_Ctxt_t ctx;
ctx.h.hashBitLen = 256;
Skein_256_Process_Block(&ctx, &ctx.b, 1, SKEIN_256_BLOCK_BYTES);
*gctx = ctx;
}
当我注释标记行（我用大写字母写此行）或更改值（不是两者）时，编译正常。有人可以帮助我吗？
在我看来，您忘记指定正在处理的内存类型，即
__global__local