/* Test for a number of SSE instructions which were seen in the wild with a bogus (irrelevant) REX.W bit in their prefixes. Some just have REX = 0x48 where REX.W is irrelevant, hence the whole REX prefix is pointless. Probably related to #133962. */ #include #include #include #include "tests/malloc.h" typedef unsigned char UChar; typedef struct { __attribute__((aligned(16))) UChar b[16]; } UWord128; typedef struct { UWord128 reg[16]; } XMMRegs; typedef struct { UWord128 dqw[5]; } Mem; void pp_UWord128 ( UWord128* w ) { int i; char buf[3]; for (i = 15; i >= 0; i--) { buf[2] = 0; sprintf(buf, "%02x", (unsigned int)w->b[i]); assert(buf[2] == 0); if (buf[0] == '0') buf[0] = '.'; if (buf[1] == '0') buf[1] = '.'; printf("%s", buf); } } void pp_XMMRegs ( char* who, XMMRegs* regs ) { int i; printf ("%s (xmms in order [15..0]) {\n", who ); for (i = 0; i < 16; i++) { printf(" %%xmm%2d ", i); pp_UWord128( ®s->reg[i] ); printf("\n"); } printf("}\n"); } void pp_Mem ( char* who, Mem* mem ) { int i; printf ("%s (dqws in order [15 .. 0]) {\n", who ); for (i = 0; i < 5; i++) { printf(" [%d] ", i); pp_UWord128( &mem->dqw[i] ); printf("\n"); } printf("}\n"); } void xor_UWord128( UWord128* src, UWord128* dst ) { int i; for (i = 0; i < 16; i++) dst->b[i] ^= src->b[i]; } void xor_XMMRegs ( XMMRegs* src, XMMRegs* dst ) { int i; for (i = 0; i < 16; i++) xor_UWord128( &src->reg[i], &dst->reg[i] ); } void xor_Mem ( Mem* src, Mem* dst ) { int i; for (i = 0; i < 5; i++) xor_UWord128( &src->dqw[i], &dst->dqw[i] ); } void setup_regs_mem ( XMMRegs* regs, Mem* mem ) { int ctr, i, j; ctr = 0; for (i = 0; i < 16; i++) { for (j = 0; j < 16; j++) regs->reg[i].b[j] = 0x51 + (ctr++ % 7); } for (i = 0; i < 5; i++) { for (j = 0; j < 16; j++) mem->dqw[i].b[j] = 0x52 + (ctr++ % 13); } } void before_test ( XMMRegs* regs, Mem* mem ) { setup_regs_mem( regs, mem ); } void after_test ( char* who, XMMRegs* regs, Mem* mem ) { XMMRegs rdiff; Mem mdiff; char s[128]; setup_regs_mem( &rdiff, &mdiff ); xor_XMMRegs( regs, &rdiff ); xor_Mem( mem, &mdiff ); sprintf(s, "after \"%s\"", who ); pp_Mem( s, &mdiff ); pp_XMMRegs( s, &rdiff ); printf("\n"); } #define LOAD_XMMREGS_from_r14 \ "\tmovupd 0(%%r14), %%xmm0\n" \ "\tmovupd 16(%%r14), %%xmm1\n" \ "\tmovupd 32(%%r14), %%xmm2\n" \ "\tmovupd 48(%%r14), %%xmm3\n" \ "\tmovupd 64(%%r14), %%xmm4\n" \ "\tmovupd 80(%%r14), %%xmm5\n" \ "\tmovupd 96(%%r14), %%xmm6\n" \ "\tmovupd 112(%%r14), %%xmm7\n" \ "\tmovupd 128(%%r14), %%xmm8\n" \ "\tmovupd 144(%%r14), %%xmm9\n" \ "\tmovupd 160(%%r14), %%xmm10\n" \ "\tmovupd 176(%%r14), %%xmm11\n" \ "\tmovupd 192(%%r14), %%xmm12\n" \ "\tmovupd 208(%%r14), %%xmm13\n" \ "\tmovupd 224(%%r14), %%xmm14\n" \ "\tmovupd 240(%%r14), %%xmm15\n" #define SAVE_XMMREGS_to_r14 \ "\tmovupd %%xmm0, 0(%%r14)\n" \ "\tmovupd %%xmm1, 16(%%r14)\n" \ "\tmovupd %%xmm2, 32(%%r14)\n" \ "\tmovupd %%xmm3, 48(%%r14)\n" \ "\tmovupd %%xmm4, 64(%%r14)\n" \ "\tmovupd %%xmm5, 80(%%r14)\n" \ "\tmovupd %%xmm6, 96(%%r14)\n" \ "\tmovupd %%xmm7, 112(%%r14)\n" \ "\tmovupd %%xmm8, 128(%%r14)\n" \ "\tmovupd %%xmm9, 144(%%r14)\n" \ "\tmovupd %%xmm10, 160(%%r14)\n" \ "\tmovupd %%xmm11, 176(%%r14)\n" \ "\tmovupd %%xmm12, 192(%%r14)\n" \ "\tmovupd %%xmm13, 208(%%r14)\n" \ "\tmovupd %%xmm14, 224(%%r14)\n" \ "\tmovupd %%xmm15, 240(%%r14)" #define XMMREGS \ "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7", \ "xmm8", "xmm9", "xmm10", "xmm11", "xmm12", "xmm13", "xmm14", "xmm15" #if 0 /* Boilerplate for test */ { before_test( regs, mem ); __asm__ __volatile__( "movq %0, %%r14\n" "\tmovq %1, %%r15\n" LOAD_XMMREGS_from_r14 "\tmovq %%r15, %%rx\n" "\t.byte 0x\n" SAVE_XMMREGS_to_r14 : /*out*/ : /*in*/ "r"(regs), "r"( -x + (char*)&mem->dqw[2] ) : /*trash*/ "r14","r15","memory", XMMREGS, "x" ); after_test( "", regs, mem ); } #endif int main ( void ) { XMMRegs* regs; Mem* mem; regs = memalign16(sizeof(XMMRegs) + 16); mem = memalign16(sizeof(Mem) + 16); /* addpd mem, reg 66 49 0f 58 48 00 rex.WB addpd 0x0(%r8),%xmm1 */ { before_test( regs, mem ); __asm__ __volatile__( "movq %0, %%r14\n" "\tmovq %1, %%r15\n" LOAD_XMMREGS_from_r14 "\tmovq %%r15, %%r8\n" "\t.byte 0x66,0x49,0x0f,0x58,0x48,0x00\n" SAVE_XMMREGS_to_r14 : /*out*/ : /*in*/ "r"(regs), "r"( -0 + (char*)&mem->dqw[2] ) : /*trash*/ "r14","r15","memory", XMMREGS, "r8" ); after_test( "rex.WB addpd 0x0(%r8),%xmm1", regs, mem ); } /* addsd mem, reg f2 48 0f 58 27 rex.W addsd (%rdi),%xmm4 */ { before_test( regs, mem ); __asm__ __volatile__( "movq %0, %%r14\n" "\tmovq %1, %%r15\n" LOAD_XMMREGS_from_r14 "\tmovq %%r15, %%rdi\n" "\t.byte 0xf2,0x48,0x0f,0x58,0x27\n" SAVE_XMMREGS_to_r14 : /*out*/ : /*in*/ "r"(regs), "r"( -0 + (char*)&mem->dqw[2] ) : /*trash*/ "r14","r15","memory", XMMREGS, "rdi" ); after_test( "rex.W addsd (%rdi),%xmm4", regs, mem ); } /* movapd mem, reg 66 48 0f 28 0a rex.W movapd (%rdx),%xmm1 */ { before_test( regs, mem ); __asm__ __volatile__( "movq %0, %%r14\n" "\tmovq %1, %%r15\n" LOAD_XMMREGS_from_r14 "\tmovq %%r15, %%rdx\n" "\t.byte 0x66,0x48,0x0f,0x28,0x0a\n" SAVE_XMMREGS_to_r14 : /*out*/ : /*in*/ "r"(regs), "r"( -0 + (char*)&mem->dqw[2] ) : /*trash*/ "r14","r15","memory", XMMREGS, "rdx" ); after_test( "rex.W movapd (%rdx),%xmm1", regs, mem ); } /* movapd reg, mem 66 48 0f 29 0a rex.W movapd %xmm1,(%rdx) */ { before_test( regs, mem ); __asm__ __volatile__( "movq %0, %%r14\n" "\tmovq %1, %%r15\n" LOAD_XMMREGS_from_r14 "\tmovq %%r15, %%rdx\n" "\t.byte 0x66,0x48,0x0f,0x29,0x0a\n" SAVE_XMMREGS_to_r14 : /*out*/ : /*in*/ "r"(regs), "r"( -0 + (char*)&mem->dqw[2] ) : /*trash*/ "r14","r15","memory", XMMREGS, "rdx" ); after_test( "rex.W movapd %xmm1,(%rdx)", regs, mem ); } /* movaps mem, reg 48 0f 28 42 30 rex.W movaps 0x30(%rdx),%xmm0 */ { before_test( regs, mem ); __asm__ __volatile__( "movq %0, %%r14\n" "\tmovq %1, %%r15\n" LOAD_XMMREGS_from_r14 "\tmovq %%r15, %%rdx\n" "\t.byte 0x48,0x0f,0x28,0x42,0x30\n" SAVE_XMMREGS_to_r14 : /*out*/ : /*in*/ "r"(regs), "r"( -0x30 + (char*)&mem->dqw[2] ) : /*trash*/ "r14","r15","memory", XMMREGS, "rdx" ); after_test( "movaps 0x30(%rdx),%xmm0", regs, mem ); } /* movaps reg, mem 49 0f 29 48 00 rex.WB movaps %xmm1,0x0(%r8) */ { before_test( regs, mem ); __asm__ __volatile__( "movq %0, %%r14\n" "\tmovq %1, %%r15\n" LOAD_XMMREGS_from_r14 "\tmovq %%r15, %%r8\n" "\t.byte 0x49,0x0f,0x29,0x48,0x00\n" SAVE_XMMREGS_to_r14 : /*out*/ : /*in*/ "r"(regs), "r"( -0 + (char*)&mem->dqw[2] ) : /*trash*/ "r14","r15","memory", XMMREGS, "r8" ); after_test( "rex.WB movaps %xmm1,0x0(%r8)", regs, mem ); } /* movddup mem, reg f2 48 0f 12 2a rex.W movddup (%rdx),%xmm5 */ { before_test( regs, mem ); __asm__ __volatile__( "movq %0, %%r14\n" "\tmovq %1, %%r15\n" LOAD_XMMREGS_from_r14 "\tmovq %%r15, %%rdx\n" "\t.byte 0xf2,0x48,0x0f,0x12,0x2a\n" SAVE_XMMREGS_to_r14 : /*out*/ : /*in*/ "r"(regs), "r"( -0 + (char*)&mem->dqw[2] ) : /*trash*/ "r14","r15","memory", XMMREGS, "rdx" ); after_test( "movddup (%rdx),%xmm5", regs, mem ); } /* movhpd mem, reg 66 48 0f 16 06 rex.W movhpd (%rsi),%xmm0 */ { before_test( regs, mem ); __asm__ __volatile__( "movq %0, %%r14\n" "\tmovq %1, %%r15\n" LOAD_XMMREGS_from_r14 "\tmovq %%r15, %%rsi\n" "\t.byte 0x66,0x48,0x0f,0x16,0x06\n" SAVE_XMMREGS_to_r14 : /*out*/ : /*in*/ "r"(regs), "r"( -0 + (char*)&mem->dqw[2] ) : /*trash*/ "r14","r15","memory", XMMREGS, "rsi" ); after_test( "rex.W movhpd (%rsi),%xmm0", regs, mem ); } /* movhpd reg, mem 66 48 0f 17 07 rex.W movhpd %xmm0,(%rdi) */ { before_test( regs, mem ); __asm__ __volatile__( "movq %0, %%r14\n" "\tmovq %1, %%r15\n" LOAD_XMMREGS_from_r14 "\tmovq %%r15, %%rdi\n" "\t.byte 0x66,0x48,0x0f,0x17,0x07\n" SAVE_XMMREGS_to_r14 : /*out*/ : /*in*/ "r"(regs), "r"( -0 + (char*)&mem->dqw[2] ) : /*trash*/ "r14","r15","memory", XMMREGS, "rdi" ); after_test( "rex.W movhpd %xmm0,(%rdi)", regs, mem ); } /* movhps mem, reg 48 0f 16 36 rex.W movhps (%rsi),%xmm6 */ { before_test( regs, mem ); __asm__ __volatile__( "movq %0, %%r14\n" "\tmovq %1, %%r15\n" LOAD_XMMREGS_from_r14 "\tmovq %%r15, %%rsi\n" "\t.byte 0x48,0x0f,0x16,0x36\n" SAVE_XMMREGS_to_r14 : /*out*/ : /*in*/ "r"(regs), "r"( -0 + (char*)&mem->dqw[2] ) : /*trash*/ "r14","r15","memory", XMMREGS, "rsi" ); after_test( "rex.W movhps (%rsi),%xmm6", regs, mem ); } /* movhps reg, mem 49 0f 17 03 rex.WB movhps %xmm0,(%r11) */ { before_test( regs, mem ); __asm__ __volatile__( "movq %0, %%r14\n" "\tmovq %1, %%r15\n" LOAD_XMMREGS_from_r14 "\tmovq %%r15, %%r11\n" "\t.byte 0x49,0x0F,0x17,0x03\n" /* rex.WB movhps %xmm0,(%r11) */ SAVE_XMMREGS_to_r14 : /*out*/ : /*in*/ "r"(regs), "r"( 0 + (char*)&mem->dqw[2] ) : /*trash*/ "r14","r15","memory", XMMREGS, "r11" ); after_test( "rex.WB movhps %xmm0,(%r11)", regs, mem ); } /* movlpd mem, reg 66 48 0f 12 4a 00 rex.W movlpd 0x0(%rdx),%xmm1 */ { before_test( regs, mem ); __asm__ __volatile__( "movq %0, %%r14\n" "\tmovq %1, %%r15\n" LOAD_XMMREGS_from_r14 "\tmovq %%r15, %%rdx\n" "\t.byte 0x66,0x48,0x0f,0x12,0x4a,0x00\n" SAVE_XMMREGS_to_r14 : /*out*/ : /*in*/ "r"(regs), "r"( -0 + (char*)&mem->dqw[2] ) : /*trash*/ "r14","r15","memory", XMMREGS, "rdx" ); after_test( "rex.W movlpd 0x0(%rdx),%xmm1", regs, mem ); } /* movlpd reg, mem 66 48 0f 13 30 rex.W movlpd %xmm6,(%rax) */ { before_test( regs, mem ); __asm__ __volatile__( "movq %0, %%r14\n" "\tmovq %1, %%r15\n" LOAD_XMMREGS_from_r14 "\tmovq %%r15, %%rax\n" "\t.byte 0x66,0x48,0x0f,0x13,0x30\n" SAVE_XMMREGS_to_r14 : /*out*/ : /*in*/ "r"(regs), "r"( -0 + (char*)&mem->dqw[2] ) : /*trash*/ "r14","r15","memory", XMMREGS, "rax" ); after_test( "rex.W movlpd %xmm6,(%rax)", regs, mem ); } /* movlps mem, reg 48 0f 12 07 rex.W movlps (%rdi),%xmm0 */ { before_test( regs, mem ); __asm__ __volatile__( "movq %0, %%r14\n" "\tmovq %1, %%r15\n" LOAD_XMMREGS_from_r14 "\tmovq %%r15, %%rdi\n" "\t.byte 0x48,0x0f,0x12,0x07\n" SAVE_XMMREGS_to_r14 : /*out*/ : /*in*/ "r"(regs), "r"( -0 + (char*)&mem->dqw[2] ) : /*trash*/ "r14","r15","memory", XMMREGS, "rdi" ); after_test( "rex.W movlps (%rdi),%xmm0", regs, mem ); } /* movlps reg, mem 49 0f 13 02 rex.WB movlps %xmm0,(%r10) */ { before_test( regs, mem ); __asm__ __volatile__( "movq %0, %%r14\n" "\tmovq %1, %%r15\n" LOAD_XMMREGS_from_r14 "\tmovq %%r15, %%r10\n" "\t.byte 0x49,0x0f,0x13,0x02\n" SAVE_XMMREGS_to_r14 : /*out*/ : /*in*/ "r"(regs), "r"( -0 + (char*)&mem->dqw[2] ) : /*trash*/ "r14","r15","memory", XMMREGS, "r10" ); after_test( "rex.WB movlps %xmm0,(%r10)", regs, mem ); } /* movq mem, reg f3 48 0f 7e 00 rex.W movq (%rax),%xmm0 */ { before_test( regs, mem ); __asm__ __volatile__( "movq %0, %%r14\n" "\tmovq %1, %%r15\n" LOAD_XMMREGS_from_r14 "\tmovq %%r15, %%rax\n" "\t.byte 0xf3,0x48,0x0f,0x7e,0x00\n" SAVE_XMMREGS_to_r14 : /*out*/ : /*in*/ "r"(regs), "r"( -0 + (char*)&mem->dqw[2] ) : /*trash*/ "r14","r15","memory", XMMREGS, "rax" ); after_test( "rex.W movq (%rax),%xmm0", regs, mem ); } /* movq reg, mem 66 48 0f d6 00 rex.W movq %xmm0,(%rax) */ { before_test( regs, mem ); __asm__ __volatile__( "movq %0, %%r14\n" "\tmovq %1, %%r15\n" LOAD_XMMREGS_from_r14 "\tmovq %%r15, %%rax\n" "\t.byte 0x66,0x48,0x0f,0xd6,0x00\n" SAVE_XMMREGS_to_r14 : /*out*/ : /*in*/ "r"(regs), "r"( -0 + (char*)&mem->dqw[2] ) : /*trash*/ "r14","r15","memory", XMMREGS, "rax" ); after_test( "rex.W movq %xmm0,(%rax)", regs, mem ); } /* movsd mem, reg f2 48 0f 10 11 rex.W movsd (%rcx),%xmm2 */ { before_test( regs, mem ); __asm__ __volatile__( "movq %0, %%r14\n" "\tmovq %1, %%r15\n" LOAD_XMMREGS_from_r14 "\tmovq %%r15, %%rcx\n" "\t.byte 0xf2,0x48,0x0f,0x10,0x11\n" SAVE_XMMREGS_to_r14 : /*out*/ : /*in*/ "r"(regs), "r"( -0 + (char*)&mem->dqw[2] ) : /*trash*/ "r14","r15","memory", XMMREGS, "rcx" ); after_test( "rex.W movsd (%rcx),%xmm2", regs, mem ); } /* movsd reg, mem f2 48 0f 11 3f rex.W movsd %xmm7,(%rdi) */ { before_test( regs, mem ); __asm__ __volatile__( "movq %0, %%r14\n" "\tmovq %1, %%r15\n" LOAD_XMMREGS_from_r14 "\tmovq %%r15, %%rdi\n" "\t.byte 0xf2,0x48,0x0f,0x11,0x3f\n" SAVE_XMMREGS_to_r14 : /*out*/ : /*in*/ "r"(regs), "r"( -0 + (char*)&mem->dqw[2] ) : /*trash*/ "r14","r15","memory", XMMREGS, "rdi" ); after_test( "rex.W movsd %xmm7,(%rdi)", regs, mem ); } /* movss mem, reg f3 48 0f 10 5e 04 rex.W movss 0x4(%rsi),%xmm3 */ { before_test( regs, mem ); __asm__ __volatile__( "movq %0, %%r14\n" "\tmovq %1, %%r15\n" LOAD_XMMREGS_from_r14 "\tmovq %%r15, %%rsi\n" "\t.byte 0xf3,0x48,0x0f,0x10,0x5e,0x04\n" SAVE_XMMREGS_to_r14 : /*out*/ : /*in*/ "r"(regs), "r"( -0x4 + (char*)&mem->dqw[2] ) : /*trash*/ "r14","r15","memory", XMMREGS, "rsi" ); after_test( "rex.W movss 0x4(%rsi),%xmm3", regs, mem ); } /* movupd reg, mem 66 48 0f 11 07 rex.W movupd %xmm0,(%rdi) */ { before_test( regs, mem ); __asm__ __volatile__( "movq %0, %%r14\n" "\tmovq %1, %%r15\n" LOAD_XMMREGS_from_r14 "\tmovq %%r15, %%rdi\n" "\t.byte 0x66,0x48,0x0f,0x11,0x07\n" SAVE_XMMREGS_to_r14 : /*out*/ : /*in*/ "r"(regs), "r"( -0 + (char*)&mem->dqw[2] ) : /*trash*/ "r14","r15","memory", XMMREGS, "rdi" ); after_test( "rex.W movupd %xmm0,(%rdi)", regs, mem ); } /* mulpd mem, reg 66 48 0f 59 61 00 rex.W mulpd 0x0(%rcx),%xmm4 */ { before_test( regs, mem ); __asm__ __volatile__( "movq %0, %%r14\n" "\tmovq %1, %%r15\n" LOAD_XMMREGS_from_r14 "\tmovq %%r15, %%rcx\n" "\t.byte 0x66,0x48,0x0f,0x59,0x61,0x00\n" SAVE_XMMREGS_to_r14 : /*out*/ : /*in*/ "r"(regs), "r"( -0 + (char*)&mem->dqw[2] ) : /*trash*/ "r14","r15","memory", XMMREGS, "rcx" ); after_test( "rex.W mulpd 0x0(%rcx),%xmm4", regs, mem ); } /* mulsd mem, reg f2 48 0f 59 1f rex.W mulsd (%rdi),%xmm3 */ { before_test( regs, mem ); __asm__ __volatile__( "movq %0, %%r14\n" "\tmovq %1, %%r15\n" LOAD_XMMREGS_from_r14 "\tmovq %%r15, %%rdi\n" "\t.byte 0xf2,0x48,0x0f,0x59,0x1f\n" SAVE_XMMREGS_to_r14 : /*out*/ : /*in*/ "r"(regs), "r"( -0 + (char*)&mem->dqw[2] ) : /*trash*/ "r14","r15","memory", XMMREGS, "rdi" ); after_test( "rex.W mulsd (%rdi),%xmm3", regs, mem ); } /* prefetchnt0 49 0f 18 4c f2 a0 rex.WB prefetcht0 -0x60(%r10,%rsi,8) */ { before_test( regs, mem ); __asm__ __volatile__( "movq %0, %%r14\n" "\tmovq %1, %%r15\n" LOAD_XMMREGS_from_r14 "\tmovq %%r15, %%r10\n" "\txorq %%rsi, %%rsi\n" "\t.byte 0x49,0x0f,0x18,0x4c,0xf2,0xa0\n" SAVE_XMMREGS_to_r14 : /*out*/ : /*in*/ "r"(regs), "r"( - -0x60 + (char*)&mem->dqw[2] ) : /*trash*/ "r14","r15","memory", XMMREGS, "r10","rsi" ); after_test( "rex.WB prefetcht0 -0x60(%r10,%rsi,8)", regs, mem ); } /* subsd mem, reg f2 49 0f 5c 4d f8 rex.WB subsd -0x8(%r13),%xmm1 */ { before_test( regs, mem ); __asm__ __volatile__( "movq %0, %%r14\n" "\tmovq %1, %%r15\n" LOAD_XMMREGS_from_r14 "\tmovq %%r15, %%r13\n" "\t.byte 0xf2,0x49,0x0f,0x5c,0x4d,0xf8\n" SAVE_XMMREGS_to_r14 : /*out*/ : /*in*/ "r"(regs), "r"( - -0x8 + (char*)&mem->dqw[2] ) : /*trash*/ "r14","r15","memory", XMMREGS, "r13" ); after_test( "rex.WB subsd -0x8(%r13),%xmm1", regs, mem ); } /* cvtps2pd mem, reg 48 0f 5a 07 rex.W cvtps2pd (%rdi),%xmm0 */ { before_test( regs, mem ); __asm__ __volatile__( "movq %0, %%r14\n" "\tmovq %1, %%r15\n" LOAD_XMMREGS_from_r14 "\tmovq %%r15, %%rdi\n" "\t.byte 0x48,0x0f,0x5a,0x07\n" SAVE_XMMREGS_to_r14 : /*out*/ : /*in*/ "r"(regs), "r"( -0 + (char*)&mem->dqw[2] ) : /*trash*/ "r14","r15","memory", XMMREGS, "rdi" ); after_test( "rex.W cvtps2pd (%rdi),%xmm0", regs, mem ); } free(regs); free(mem); return 0; }