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Diffstat (limited to 'src/3rdparty/pcre2/src/sljit/sljitNativePPC_32.c')
-rw-r--r--src/3rdparty/pcre2/src/sljit/sljitNativePPC_32.c135
1 files changed, 100 insertions, 35 deletions
diff --git a/src/3rdparty/pcre2/src/sljit/sljitNativePPC_32.c b/src/3rdparty/pcre2/src/sljit/sljitNativePPC_32.c
index 7d9ec5338f..9449e4b9d7 100644
--- a/src/3rdparty/pcre2/src/sljit/sljitNativePPC_32.c
+++ b/src/3rdparty/pcre2/src/sljit/sljitNativePPC_32.c
@@ -38,12 +38,15 @@ static sljit_s32 load_immediate(struct sljit_compiler *compiler, sljit_s32 reg,
return (imm & 0xffff) ? push_inst(compiler, ORI | S(reg) | A(reg) | IMM(imm)) : SLJIT_SUCCESS;
}
+/* Simplified mnemonics: clrlwi. */
#define INS_CLEAR_LEFT(dst, src, from) \
- (RLWINM | S(src) | A(dst) | ((from) << 6) | (31 << 1))
+ (RLWINM | S(src) | A(dst) | RLWI_MBE(from, 31))
static SLJIT_INLINE sljit_s32 emit_single_op(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 flags,
sljit_s32 dst, sljit_s32 src1, sljit_s32 src2)
{
+ sljit_u32 imm;
+
switch (op) {
case SLJIT_MOV:
case SLJIT_MOV_U32:
@@ -86,15 +89,20 @@ static SLJIT_INLINE sljit_s32 emit_single_op(struct sljit_compiler *compiler, sl
SLJIT_ASSERT(src1 == TMP_REG1);
return push_inst(compiler, NOR | RC(flags) | S(src2) | A(dst) | B(src2));
- case SLJIT_NEG:
- SLJIT_ASSERT(src1 == TMP_REG1);
- /* Setting XER SO is not enough, CR SO is also needed. */
- return push_inst(compiler, NEG | OE((flags & ALT_FORM1) ? ALT_SET_FLAGS : 0) | RC(flags) | D(dst) | A(src2));
-
case SLJIT_CLZ:
SLJIT_ASSERT(src1 == TMP_REG1);
return push_inst(compiler, CNTLZW | S(src2) | A(dst));
+ case SLJIT_CTZ:
+ SLJIT_ASSERT(src1 == TMP_REG1);
+ FAIL_IF(push_inst(compiler, NEG | D(TMP_REG1) | A(src2)));
+ FAIL_IF(push_inst(compiler, AND | S(src2) | A(dst) | B(TMP_REG1)));
+ FAIL_IF(push_inst(compiler, CNTLZW | S(dst) | A(dst)));
+ FAIL_IF(push_inst(compiler, ADDI | D(TMP_REG1) | A(dst) | IMM(-32)));
+ /* The highest bits are set, if dst < 32, zero otherwise. */
+ FAIL_IF(push_inst(compiler, SRWI(27) | S(TMP_REG1) | A(TMP_REG1)));
+ return push_inst(compiler, XOR | S(dst) | A(dst) | B(TMP_REG1));
+
case SLJIT_ADD:
if (flags & ALT_FORM1) {
/* Setting XER SO is not enough, CR SO is also needed. */
@@ -108,20 +116,23 @@ static SLJIT_INLINE sljit_s32 emit_single_op(struct sljit_compiler *compiler, sl
if (flags & ALT_FORM3)
return push_inst(compiler, ADDIS | D(dst) | A(src1) | compiler->imm);
+ imm = compiler->imm;
+
if (flags & ALT_FORM4) {
- FAIL_IF(push_inst(compiler, ADDIS | D(dst) | A(src1) | (((compiler->imm >> 16) & 0xffff) + ((compiler->imm >> 15) & 0x1))));
+ FAIL_IF(push_inst(compiler, ADDIS | D(dst) | A(src1) | (((imm >> 16) & 0xffff) + ((imm >> 15) & 0x1))));
src1 = dst;
}
- return push_inst(compiler, ADDI | D(dst) | A(src1) | (compiler->imm & 0xffff));
+ return push_inst(compiler, ADDI | D(dst) | A(src1) | (imm & 0xffff));
}
if (flags & ALT_FORM3) {
SLJIT_ASSERT(src2 == TMP_REG2);
return push_inst(compiler, ADDIC | D(dst) | A(src1) | compiler->imm);
}
+ SLJIT_ASSERT(!(flags & ALT_FORM4));
if (!(flags & ALT_SET_FLAGS))
return push_inst(compiler, ADD | D(dst) | A(src1) | B(src2));
- if (flags & ALT_FORM4)
+ if (flags & ALT_FORM5)
return push_inst(compiler, ADDC | RC(ALT_SET_FLAGS) | D(dst) | A(src1) | B(src2));
return push_inst(compiler, ADD | RC(flags) | D(dst) | A(src1) | B(src2));
@@ -143,29 +154,42 @@ static SLJIT_INLINE sljit_s32 emit_single_op(struct sljit_compiler *compiler, sl
}
if (flags & ALT_FORM2) {
- /* Setting XER SO is not enough, CR SO is also needed. */
- return push_inst(compiler, SUBF | OE(ALT_SET_FLAGS) | RC(ALT_SET_FLAGS) | D(dst) | A(src2) | B(src1));
+ if (flags & ALT_FORM3) {
+ FAIL_IF(push_inst(compiler, CMPI | CRD(0) | A(src1) | compiler->imm));
+ if (!(flags & ALT_FORM4))
+ return SLJIT_SUCCESS;
+ return push_inst(compiler, ADDI | D(dst) | A(src1) | (-compiler->imm & 0xffff));
+ }
+ FAIL_IF(push_inst(compiler, CMP | CRD(0) | A(src1) | B(src2)));
+ if (!(flags & ALT_FORM4))
+ return SLJIT_SUCCESS;
+ return push_inst(compiler, SUBF | D(dst) | A(src2) | B(src1));
}
if (flags & ALT_FORM3) {
+ /* Setting XER SO is not enough, CR SO is also needed. */
+ if (src1 != TMP_ZERO)
+ return push_inst(compiler, SUBF | OE(ALT_SET_FLAGS) | RC(ALT_SET_FLAGS) | D(dst) | A(src2) | B(src1));
+ return push_inst(compiler, NEG | OE(ALT_SET_FLAGS) | RC(ALT_SET_FLAGS) | D(dst) | A(src2));
+ }
+
+ if (flags & ALT_FORM4) {
/* 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_FORM4) {
- if (flags & ALT_FORM5) {
- SLJIT_ASSERT(src2 == TMP_REG2);
- return push_inst(compiler, CMPI | CRD(0) | A(src1) | compiler->imm);
- }
- return push_inst(compiler, CMP | CRD(0) | A(src1) | B(src2));
+ if (!(flags & ALT_SET_FLAGS)) {
+ SLJIT_ASSERT(src1 != TMP_ZERO);
+ return push_inst(compiler, SUBF | D(dst) | A(src2) | B(src1));
}
- if (!(flags & ALT_SET_FLAGS))
- return push_inst(compiler, SUBF | D(dst) | A(src2) | B(src1));
if (flags & ALT_FORM5)
return push_inst(compiler, SUBFC | RC(ALT_SET_FLAGS) | D(dst) | A(src2) | B(src1));
- return push_inst(compiler, SUBF | RC(flags) | D(dst) | A(src2) | B(src1));
+
+ if (src1 != TMP_ZERO)
+ return push_inst(compiler, SUBF | RC(ALT_SET_FLAGS) | D(dst) | A(src2) | B(src1));
+ return push_inst(compiler, NEG | RC(ALT_SET_FLAGS) | D(dst) | A(src2));
case SLJIT_SUBC:
return push_inst(compiler, SUBFE | D(dst) | A(src2) | B(src1));
@@ -199,8 +223,10 @@ static SLJIT_INLINE sljit_s32 emit_single_op(struct sljit_compiler *compiler, sl
}
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));
+ imm = compiler->imm;
+
+ FAIL_IF(push_inst(compiler, ORI | S(src1) | A(dst) | IMM(imm)));
+ return push_inst(compiler, ORIS | S(dst) | A(dst) | IMM(imm >> 16));
}
return push_inst(compiler, OR | RC(flags) | S(src1) | A(dst) | B(src2));
@@ -215,34 +241,78 @@ static SLJIT_INLINE sljit_s32 emit_single_op(struct sljit_compiler *compiler, sl
}
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));
+ imm = compiler->imm;
+
+ FAIL_IF(push_inst(compiler, XORI | S(src1) | A(dst) | IMM(imm)));
+ return push_inst(compiler, XORIS | S(dst) | A(dst) | IMM(imm >> 16));
}
return push_inst(compiler, XOR | RC(flags) | S(src1) | A(dst) | B(src2));
case SLJIT_SHL:
+ case SLJIT_MSHL:
if (flags & ALT_FORM1) {
SLJIT_ASSERT(src2 == TMP_REG2);
- compiler->imm &= 0x1f;
- return push_inst(compiler, RLWINM | RC(flags) | S(src1) | A(dst) | (compiler->imm << 11) | ((31 - compiler->imm) << 1));
+ imm = compiler->imm & 0x1f;
+ return push_inst(compiler, SLWI(imm) | RC(flags) | S(src1) | A(dst));
+ }
+
+ if (op == SLJIT_MSHL) {
+ FAIL_IF(push_inst(compiler, ANDI | S(src2) | A(TMP_REG2) | 0x1f));
+ src2 = TMP_REG2;
}
+
return push_inst(compiler, SLW | RC(flags) | S(src1) | A(dst) | B(src2));
case SLJIT_LSHR:
+ case SLJIT_MLSHR:
if (flags & ALT_FORM1) {
SLJIT_ASSERT(src2 == TMP_REG2);
- compiler->imm &= 0x1f;
- return push_inst(compiler, RLWINM | RC(flags) | S(src1) | A(dst) | (((32 - compiler->imm) & 0x1f) << 11) | (compiler->imm << 6) | (31 << 1));
+ imm = compiler->imm & 0x1f;
+ /* Since imm can be 0, SRWI() cannot be used. */
+ return push_inst(compiler, RLWINM | RC(flags) | S(src1) | A(dst) | RLWI_SH((32 - imm) & 0x1f) | RLWI_MBE(imm, 31));
+ }
+
+ if (op == SLJIT_MLSHR) {
+ FAIL_IF(push_inst(compiler, ANDI | S(src2) | A(TMP_REG2) | 0x1f));
+ src2 = TMP_REG2;
}
+
return push_inst(compiler, SRW | RC(flags) | S(src1) | A(dst) | B(src2));
case SLJIT_ASHR:
+ case SLJIT_MASHR:
if (flags & ALT_FORM1) {
SLJIT_ASSERT(src2 == TMP_REG2);
- compiler->imm &= 0x1f;
- return push_inst(compiler, SRAWI | RC(flags) | S(src1) | A(dst) | (compiler->imm << 11));
+ imm = compiler->imm & 0x1f;
+ return push_inst(compiler, SRAWI | RC(flags) | S(src1) | A(dst) | (imm << 11));
+ }
+
+ if (op == SLJIT_MASHR) {
+ FAIL_IF(push_inst(compiler, ANDI | S(src2) | A(TMP_REG2) | 0x1f));
+ src2 = TMP_REG2;
}
+
return push_inst(compiler, SRAW | RC(flags) | S(src1) | A(dst) | B(src2));
+
+ case SLJIT_ROTL:
+ case SLJIT_ROTR:
+ if (flags & ALT_FORM1) {
+ SLJIT_ASSERT(src2 == TMP_REG2);
+ imm = compiler->imm;
+
+ if (op == SLJIT_ROTR)
+ imm = (sljit_u32)(-(sljit_s32)imm);
+
+ imm &= 0x1f;
+ return push_inst(compiler, RLWINM | S(src1) | A(dst) | RLWI_SH(imm) | RLWI_MBE(0, 31));
+ }
+
+ if (op == SLJIT_ROTR) {
+ FAIL_IF(push_inst(compiler, SUBFIC | D(TMP_REG2) | A(src2) | 0));
+ src2 = TMP_REG2;
+ }
+
+ return push_inst(compiler, RLWNM | S(src1) | A(dst) | B(src2) | RLWI_MBE(0, 31));
}
SLJIT_UNREACHABLE();
@@ -268,8 +338,3 @@ SLJIT_API_FUNC_ATTRIBUTE void sljit_set_jump_addr(sljit_uw addr, sljit_uw new_ta
inst = (sljit_ins *)SLJIT_ADD_EXEC_OFFSET(inst, executable_offset);
SLJIT_CACHE_FLUSH(inst, inst + 2);
}
-
-SLJIT_API_FUNC_ATTRIBUTE void sljit_set_const(sljit_uw addr, sljit_sw new_constant, sljit_sw executable_offset)
-{
- sljit_set_jump_addr(addr, new_constant, executable_offset);
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-03 13:56:47 +0000