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Diffstat (limited to 'thirdparty/pcre2/src/sljit/sljitNativePPC_32.c')
-rw-r--r--thirdparty/pcre2/src/sljit/sljitNativePPC_32.c92
1 files changed, 74 insertions, 18 deletions
diff --git a/thirdparty/pcre2/src/sljit/sljitNativePPC_32.c b/thirdparty/pcre2/src/sljit/sljitNativePPC_32.c
index 95fe6bbe0e..9449e4b9d7 100644
--- a/thirdparty/pcre2/src/sljit/sljitNativePPC_32.c
+++ b/thirdparty/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:
@@ -90,6 +93,16 @@ static SLJIT_INLINE sljit_s32 emit_single_op(struct sljit_compiler *compiler, sl
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. */
@@ -103,12 +116,14 @@ 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);
@@ -208,8 +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));
@@ -224,34 +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();
@@ -277,8 +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, (sljit_uw)new_constant, executable_offset);
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-17 18:43:44 +0000