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Diffstat (limited to 'sljit/sljitNativePPC_64.c')
-rw-r--r--sljit/sljitNativePPC_64.c421
1 files changed, 421 insertions, 0 deletions
diff --git a/sljit/sljitNativePPC_64.c b/sljit/sljitNativePPC_64.c
new file mode 100644
index 0000000..182ac7b
--- /dev/null
+++ b/sljit/sljitNativePPC_64.c
@@ -0,0 +1,421 @@
+/*
+ * Stack-less Just-In-Time compiler
+ *
+ * Copyright 2009-2012 Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ * conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ * of conditions and the following disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* ppc 64-bit arch dependent functions. */
+
+#if defined(__GNUC__) || (defined(__IBM_GCC_ASM) && __IBM_GCC_ASM)
+#define ASM_SLJIT_CLZ(src, dst) \
+ __asm__ volatile ( "cntlzd %0, %1" : "=r"(dst) : "r"(src) )
+#elif defined(__xlc__)
+#error "Please enable GCC syntax for inline assembly statements"
+#else
+#error "Must implement count leading zeroes"
+#endif
+
+#define RLDI(dst, src, sh, mb, type) \
+ (HI(30) | S(src) | A(dst) | ((type) << 2) | (((sh) & 0x1f) << 11) | (((sh) & 0x20) >> 4) | (((mb) & 0x1f) << 6) | ((mb) & 0x20))
+
+#define PUSH_RLDICR(reg, shift) \
+ push_inst(compiler, RLDI(reg, reg, 63 - shift, shift, 1))
+
+static sljit_si load_immediate(struct sljit_compiler *compiler, sljit_si reg, sljit_sw imm)
+{
+ sljit_uw tmp;
+ sljit_uw shift;
+ sljit_uw tmp2;
+ sljit_uw shift2;
+
+ if (imm <= SIMM_MAX && imm >= SIMM_MIN)
+ return push_inst(compiler, ADDI | D(reg) | A(0) | IMM(imm));
+
+ if (!(imm & ~0xffff))
+ return push_inst(compiler, ORI | S(TMP_ZERO) | A(reg) | IMM(imm));
+
+ if (imm <= 0x7fffffffl && imm >= -0x80000000l) {
+ FAIL_IF(push_inst(compiler, ADDIS | D(reg) | A(0) | IMM(imm >> 16)));
+ return (imm & 0xffff) ? push_inst(compiler, ORI | S(reg) | A(reg) | IMM(imm)) : SLJIT_SUCCESS;
+ }
+
+ /* Count leading zeroes. */
+ tmp = (imm >= 0) ? imm : ~imm;
+ ASM_SLJIT_CLZ(tmp, shift);
+ SLJIT_ASSERT(shift > 0);
+ shift--;
+ tmp = (imm << shift);
+
+ if ((tmp & ~0xffff000000000000ul) == 0) {
+ FAIL_IF(push_inst(compiler, ADDI | D(reg) | A(0) | IMM(tmp >> 48)));
+ shift += 15;
+ return PUSH_RLDICR(reg, shift);
+ }
+
+ if ((tmp & ~0xffffffff00000000ul) == 0) {
+ FAIL_IF(push_inst(compiler, ADDIS | D(reg) | A(0) | IMM(tmp >> 48)));
+ FAIL_IF(push_inst(compiler, ORI | S(reg) | A(reg) | IMM(tmp >> 32)));
+ shift += 31;
+ return PUSH_RLDICR(reg, shift);
+ }
+
+ /* Cut out the 16 bit from immediate. */
+ shift += 15;
+ tmp2 = imm & ((1ul << (63 - shift)) - 1);
+
+ if (tmp2 <= 0xffff) {
+ FAIL_IF(push_inst(compiler, ADDI | D(reg) | A(0) | IMM(tmp >> 48)));
+ FAIL_IF(PUSH_RLDICR(reg, shift));
+ return push_inst(compiler, ORI | S(reg) | A(reg) | tmp2);
+ }
+
+ if (tmp2 <= 0xffffffff) {
+ FAIL_IF(push_inst(compiler, ADDI | D(reg) | A(0) | IMM(tmp >> 48)));
+ FAIL_IF(PUSH_RLDICR(reg, shift));
+ FAIL_IF(push_inst(compiler, ORIS | S(reg) | A(reg) | (tmp2 >> 16)));
+ return (imm & 0xffff) ? push_inst(compiler, ORI | S(reg) | A(reg) | IMM(tmp2)) : SLJIT_SUCCESS;
+ }
+
+ ASM_SLJIT_CLZ(tmp2, shift2);
+ tmp2 <<= shift2;
+
+ if ((tmp2 & ~0xffff000000000000ul) == 0) {
+ FAIL_IF(push_inst(compiler, ADDI | D(reg) | A(0) | IMM(tmp >> 48)));
+ shift2 += 15;
+ shift += (63 - shift2);
+ FAIL_IF(PUSH_RLDICR(reg, shift));
+ FAIL_IF(push_inst(compiler, ORI | S(reg) | A(reg) | (tmp2 >> 48)));
+ return PUSH_RLDICR(reg, shift2);
+ }
+
+ /* The general version. */
+ FAIL_IF(push_inst(compiler, ADDIS | D(reg) | A(0) | IMM(imm >> 48)));
+ FAIL_IF(push_inst(compiler, ORI | S(reg) | A(reg) | IMM(imm >> 32)));
+ FAIL_IF(PUSH_RLDICR(reg, 31));
+ FAIL_IF(push_inst(compiler, ORIS | S(reg) | A(reg) | IMM(imm >> 16)));
+ return push_inst(compiler, ORI | S(reg) | A(reg) | IMM(imm));
+}
+
+/* Simplified mnemonics: clrldi. */
+#define INS_CLEAR_LEFT(dst, src, from) \
+ (RLDICL | S(src) | A(dst) | ((from) << 6) | (1 << 5))
+
+/* Sign extension for integer operations. */
+#define UN_EXTS() \
+ if ((flags & (ALT_SIGN_EXT | REG2_SOURCE)) == (ALT_SIGN_EXT | REG2_SOURCE)) { \
+ FAIL_IF(push_inst(compiler, EXTSW | S(src2) | A(TMP_REG2))); \
+ src2 = TMP_REG2; \
+ }
+
+#define BIN_EXTS() \
+ if (flags & ALT_SIGN_EXT) { \
+ if (flags & REG1_SOURCE) { \
+ FAIL_IF(push_inst(compiler, EXTSW | S(src1) | A(TMP_REG1))); \
+ src1 = TMP_REG1; \
+ } \
+ if (flags & REG2_SOURCE) { \
+ FAIL_IF(push_inst(compiler, EXTSW | S(src2) | A(TMP_REG2))); \
+ src2 = TMP_REG2; \
+ } \
+ }
+
+#define BIN_IMM_EXTS() \
+ if ((flags & (ALT_SIGN_EXT | REG1_SOURCE)) == (ALT_SIGN_EXT | REG1_SOURCE)) { \
+ FAIL_IF(push_inst(compiler, EXTSW | S(src1) | A(TMP_REG1))); \
+ src1 = TMP_REG1; \
+ }
+
+static SLJIT_INLINE sljit_si emit_single_op(struct sljit_compiler *compiler, sljit_si op, sljit_si flags,
+ sljit_si dst, sljit_si src1, sljit_si src2)
+{
+ switch (op) {
+ case SLJIT_MOV:
+ case SLJIT_MOV_P:
+ SLJIT_ASSERT(src1 == TMP_REG1);
+ if (dst != src2)
+ return push_inst(compiler, OR | S(src2) | A(dst) | B(src2));
+ return SLJIT_SUCCESS;
+
+ case SLJIT_MOV_UI:
+ case SLJIT_MOV_SI:
+ SLJIT_ASSERT(src1 == TMP_REG1);
+ if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) {
+ if (op == SLJIT_MOV_SI)
+ return push_inst(compiler, EXTSW | S(src2) | A(dst));
+ return push_inst(compiler, INS_CLEAR_LEFT(dst, src2, 0));
+ }
+ else {
+ SLJIT_ASSERT(dst == src2);
+ }
+ return SLJIT_SUCCESS;
+
+ case SLJIT_MOV_UB:
+ case SLJIT_MOV_SB:
+ SLJIT_ASSERT(src1 == TMP_REG1);
+ if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) {
+ if (op == SLJIT_MOV_SB)
+ return push_inst(compiler, EXTSB | S(src2) | A(dst));
+ return push_inst(compiler, INS_CLEAR_LEFT(dst, src2, 24));
+ }
+ else if ((flags & REG_DEST) && op == SLJIT_MOV_SB)
+ return push_inst(compiler, EXTSB | S(src2) | A(dst));
+ else {
+ SLJIT_ASSERT(dst == src2);
+ }
+ return SLJIT_SUCCESS;
+
+ case SLJIT_MOV_UH:
+ case SLJIT_MOV_SH:
+ SLJIT_ASSERT(src1 == TMP_REG1);
+ if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) {
+ if (op == SLJIT_MOV_SH)
+ return push_inst(compiler, EXTSH | S(src2) | A(dst));
+ return push_inst(compiler, INS_CLEAR_LEFT(dst, src2, 16));
+ }
+ else {
+ SLJIT_ASSERT(dst == src2);
+ }
+ return SLJIT_SUCCESS;
+
+ case SLJIT_NOT:
+ SLJIT_ASSERT(src1 == TMP_REG1);
+ UN_EXTS();
+ return push_inst(compiler, NOR | RC(flags) | S(src2) | A(dst) | B(src2));
+
+ case SLJIT_NEG:
+ SLJIT_ASSERT(src1 == TMP_REG1);
+ UN_EXTS();
+ return push_inst(compiler, NEG | OERC(flags) | D(dst) | A(src2));
+
+ case SLJIT_CLZ:
+ SLJIT_ASSERT(src1 == TMP_REG1);
+ if (flags & ALT_FORM1)
+ return push_inst(compiler, CNTLZW | RC(flags) | S(src2) | A(dst));
+ return push_inst(compiler, CNTLZD | RC(flags) | S(src2) | A(dst));
+
+ case SLJIT_ADD:
+ if (flags & ALT_FORM1) {
+ /* Flags does not set: BIN_IMM_EXTS unnecessary. */
+ SLJIT_ASSERT(src2 == TMP_REG2);
+ return push_inst(compiler, ADDI | D(dst) | A(src1) | compiler->imm);
+ }
+ if (flags & ALT_FORM2) {
+ /* Flags does not set: BIN_IMM_EXTS unnecessary. */
+ SLJIT_ASSERT(src2 == TMP_REG2);
+ return push_inst(compiler, ADDIS | D(dst) | A(src1) | compiler->imm);
+ }
+ if (flags & ALT_FORM3) {
+ SLJIT_ASSERT(src2 == TMP_REG2);
+ BIN_IMM_EXTS();
+ return push_inst(compiler, ADDIC | D(dst) | A(src1) | compiler->imm);
+ }
+ if (flags & ALT_FORM4) {
+ /* Flags does not set: BIN_IMM_EXTS unnecessary. */
+ FAIL_IF(push_inst(compiler, ADDI | D(dst) | A(src1) | (compiler->imm & 0xffff)));
+ return push_inst(compiler, ADDIS | D(dst) | A(dst) | (((compiler->imm >> 16) & 0xffff) + ((compiler->imm >> 15) & 0x1)));
+ }
+ if (!(flags & ALT_SET_FLAGS))
+ return push_inst(compiler, ADD | D(dst) | A(src1) | B(src2));
+ BIN_EXTS();
+ return push_inst(compiler, ADDC | OERC(ALT_SET_FLAGS) | D(dst) | A(src1) | B(src2));
+
+ case SLJIT_ADDC:
+ if (flags & ALT_FORM1) {
+ FAIL_IF(push_inst(compiler, MFXER | D(0)));
+ FAIL_IF(push_inst(compiler, ADDE | D(dst) | A(src1) | B(src2)));
+ return push_inst(compiler, MTXER | S(0));
+ }
+ BIN_EXTS();
+ return push_inst(compiler, ADDE | D(dst) | A(src1) | B(src2));
+
+ case SLJIT_SUB:
+ if (flags & ALT_FORM1) {
+ /* Flags does not set: BIN_IMM_EXTS unnecessary. */
+ SLJIT_ASSERT(src2 == TMP_REG2);
+ return push_inst(compiler, SUBFIC | D(dst) | A(src1) | compiler->imm);
+ }
+ if (flags & (ALT_FORM2 | ALT_FORM3)) {
+ SLJIT_ASSERT(src2 == TMP_REG2);
+ if (flags & ALT_FORM2)
+ FAIL_IF(push_inst(compiler, CMPI | CRD(0 | ((flags & ALT_SIGN_EXT) ? 0 : 1)) | A(src1) | compiler->imm));
+ if (flags & ALT_FORM3)
+ return push_inst(compiler, CMPLI | CRD(4 | ((flags & ALT_SIGN_EXT) ? 0 : 1)) | A(src1) | compiler->imm);
+ return SLJIT_SUCCESS;
+ }
+ if (flags & (ALT_FORM4 | ALT_FORM5)) {
+ if (flags & ALT_FORM4)
+ FAIL_IF(push_inst(compiler, CMPL | CRD(4 | ((flags & ALT_SIGN_EXT) ? 0 : 1)) | A(src1) | B(src2)));
+ if (flags & ALT_FORM5)
+ return push_inst(compiler, CMP | CRD(0 | ((flags & ALT_SIGN_EXT) ? 0 : 1)) | A(src1) | B(src2));
+ return SLJIT_SUCCESS;
+ }
+ if (!(flags & ALT_SET_FLAGS))
+ return push_inst(compiler, SUBF | D(dst) | A(src2) | B(src1));
+ BIN_EXTS();
+ if (flags & ALT_FORM6)
+ FAIL_IF(push_inst(compiler, CMPL | CRD(4 | ((flags & ALT_SIGN_EXT) ? 0 : 1)) | A(src1) | B(src2)));
+ return push_inst(compiler, SUBFC | OERC(ALT_SET_FLAGS) | D(dst) | A(src2) | B(src1));
+
+ case SLJIT_SUBC:
+ if (flags & ALT_FORM1) {
+ FAIL_IF(push_inst(compiler, MFXER | D(0)));
+ FAIL_IF(push_inst(compiler, SUBFE | D(dst) | A(src2) | B(src1)));
+ return push_inst(compiler, MTXER | S(0));
+ }
+ BIN_EXTS();
+ return push_inst(compiler, SUBFE | D(dst) | A(src2) | B(src1));
+
+ case SLJIT_MUL:
+ if (flags & ALT_FORM1) {
+ SLJIT_ASSERT(src2 == TMP_REG2);
+ return push_inst(compiler, MULLI | D(dst) | A(src1) | compiler->imm);
+ }
+ BIN_EXTS();
+ if (flags & ALT_FORM2)
+ return push_inst(compiler, MULLW | OERC(flags) | D(dst) | A(src2) | B(src1));
+ return push_inst(compiler, MULLD | OERC(flags) | D(dst) | A(src2) | B(src1));
+
+ case SLJIT_AND:
+ if (flags & ALT_FORM1) {
+ SLJIT_ASSERT(src2 == TMP_REG2);
+ return push_inst(compiler, ANDI | S(src1) | A(dst) | compiler->imm);
+ }
+ if (flags & ALT_FORM2) {
+ SLJIT_ASSERT(src2 == TMP_REG2);
+ return push_inst(compiler, ANDIS | S(src1) | A(dst) | compiler->imm);
+ }
+ return push_inst(compiler, AND | RC(flags) | S(src1) | A(dst) | B(src2));
+
+ case SLJIT_OR:
+ if (flags & ALT_FORM1) {
+ SLJIT_ASSERT(src2 == TMP_REG2);
+ return push_inst(compiler, ORI | S(src1) | A(dst) | compiler->imm);
+ }
+ if (flags & ALT_FORM2) {
+ SLJIT_ASSERT(src2 == TMP_REG2);
+ return push_inst(compiler, ORIS | S(src1) | A(dst) | compiler->imm);
+ }
+ if (flags & ALT_FORM3) {
+ SLJIT_ASSERT(src2 == TMP_REG2);
+ FAIL_IF(push_inst(compiler, ORI | S(src1) | A(dst) | IMM(compiler->imm)));
+ return push_inst(compiler, ORIS | S(dst) | A(dst) | IMM(compiler->imm >> 16));
+ }
+ return push_inst(compiler, OR | RC(flags) | S(src1) | A(dst) | B(src2));
+
+ case SLJIT_XOR:
+ if (flags & ALT_FORM1) {
+ SLJIT_ASSERT(src2 == TMP_REG2);
+ return push_inst(compiler, XORI | S(src1) | A(dst) | compiler->imm);
+ }
+ if (flags & ALT_FORM2) {
+ SLJIT_ASSERT(src2 == TMP_REG2);
+ return push_inst(compiler, XORIS | S(src1) | A(dst) | compiler->imm);
+ }
+ if (flags & ALT_FORM3) {
+ SLJIT_ASSERT(src2 == TMP_REG2);
+ FAIL_IF(push_inst(compiler, XORI | S(src1) | A(dst) | IMM(compiler->imm)));
+ return push_inst(compiler, XORIS | S(dst) | A(dst) | IMM(compiler->imm >> 16));
+ }
+ return push_inst(compiler, XOR | RC(flags) | S(src1) | A(dst) | B(src2));
+
+ case SLJIT_SHL:
+ if (flags & ALT_FORM1) {
+ SLJIT_ASSERT(src2 == TMP_REG2);
+ if (flags & ALT_FORM2) {
+ compiler->imm &= 0x1f;
+ return push_inst(compiler, RLWINM | RC(flags) | S(src1) | A(dst) | (compiler->imm << 11) | ((31 - compiler->imm) << 1));
+ }
+ else {
+ compiler->imm &= 0x3f;
+ return push_inst(compiler, RLDI(dst, src1, compiler->imm, 63 - compiler->imm, 1) | RC(flags));
+ }
+ }
+ return push_inst(compiler, ((flags & ALT_FORM2) ? SLW : SLD) | RC(flags) | S(src1) | A(dst) | B(src2));
+
+ case SLJIT_LSHR:
+ if (flags & ALT_FORM1) {
+ SLJIT_ASSERT(src2 == TMP_REG2);
+ if (flags & ALT_FORM2) {
+ compiler->imm &= 0x1f;
+ return push_inst(compiler, RLWINM | RC(flags) | S(src1) | A(dst) | (((32 - compiler->imm) & 0x1f) << 11) | (compiler->imm << 6) | (31 << 1));
+ }
+ else {
+ compiler->imm &= 0x3f;
+ return push_inst(compiler, RLDI(dst, src1, 64 - compiler->imm, compiler->imm, 0) | RC(flags));
+ }
+ }
+ return push_inst(compiler, ((flags & ALT_FORM2) ? SRW : SRD) | RC(flags) | S(src1) | A(dst) | B(src2));
+
+ case SLJIT_ASHR:
+ if (flags & ALT_FORM3)
+ FAIL_IF(push_inst(compiler, MFXER | D(0)));
+ if (flags & ALT_FORM1) {
+ SLJIT_ASSERT(src2 == TMP_REG2);
+ if (flags & ALT_FORM2) {
+ compiler->imm &= 0x1f;
+ FAIL_IF(push_inst(compiler, SRAWI | RC(flags) | S(src1) | A(dst) | (compiler->imm << 11)));
+ }
+ else {
+ compiler->imm &= 0x3f;
+ FAIL_IF(push_inst(compiler, SRADI | RC(flags) | S(src1) | A(dst) | ((compiler->imm & 0x1f) << 11) | ((compiler->imm & 0x20) >> 4)));
+ }
+ }
+ else
+ FAIL_IF(push_inst(compiler, ((flags & ALT_FORM2) ? SRAW : SRAD) | RC(flags) | S(src1) | A(dst) | B(src2)));
+ return (flags & ALT_FORM3) ? push_inst(compiler, MTXER | S(0)) : SLJIT_SUCCESS;
+ }
+
+ SLJIT_ASSERT_STOP();
+ return SLJIT_SUCCESS;
+}
+
+static SLJIT_INLINE sljit_si emit_const(struct sljit_compiler *compiler, sljit_si reg, sljit_sw init_value)
+{
+ FAIL_IF(push_inst(compiler, ADDIS | D(reg) | A(0) | IMM(init_value >> 48)));
+ FAIL_IF(push_inst(compiler, ORI | S(reg) | A(reg) | IMM(init_value >> 32)));
+ FAIL_IF(PUSH_RLDICR(reg, 31));
+ FAIL_IF(push_inst(compiler, ORIS | S(reg) | A(reg) | IMM(init_value >> 16)));
+ return push_inst(compiler, ORI | S(reg) | A(reg) | IMM(init_value));
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_jump_addr(sljit_uw addr, sljit_uw new_addr)
+{
+ sljit_ins *inst = (sljit_ins*)addr;
+
+ inst[0] = (inst[0] & 0xffff0000) | ((new_addr >> 48) & 0xffff);
+ inst[1] = (inst[1] & 0xffff0000) | ((new_addr >> 32) & 0xffff);
+ inst[3] = (inst[3] & 0xffff0000) | ((new_addr >> 16) & 0xffff);
+ inst[4] = (inst[4] & 0xffff0000) | (new_addr & 0xffff);
+ SLJIT_CACHE_FLUSH(inst, inst + 5);
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_const(sljit_uw addr, sljit_sw new_constant)
+{
+ sljit_ins *inst = (sljit_ins*)addr;
+
+ inst[0] = (inst[0] & 0xffff0000) | ((new_constant >> 48) & 0xffff);
+ inst[1] = (inst[1] & 0xffff0000) | ((new_constant >> 32) & 0xffff);
+ inst[3] = (inst[3] & 0xffff0000) | ((new_constant >> 16) & 0xffff);
+ inst[4] = (inst[4] & 0xffff0000) | (new_constant & 0xffff);
+ SLJIT_CACHE_FLUSH(inst, inst + 5);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-25 10:31:50 +0000