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Unified Diff: src/ia32/disasm-ia32.cc

Issue 7945009: Merge experimental/gc branch to the bleeding_edge. (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: Created 9 years, 3 months ago
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Index: src/ia32/disasm-ia32.cc
===================================================================
--- src/ia32/disasm-ia32.cc (revision 9327)
+++ src/ia32/disasm-ia32.cc (working copy)
@@ -55,6 +55,7 @@
static const ByteMnemonic two_operands_instr[] = {
+ {0x01, "add", OPER_REG_OP_ORDER},
{0x03, "add", REG_OPER_OP_ORDER},
{0x09, "or", OPER_REG_OP_ORDER},
{0x0B, "or", REG_OPER_OP_ORDER},
@@ -117,6 +118,19 @@
};
+// Generally we don't want to generate these because they are subject to partial
+// register stalls. They are included for completeness and because the cmp
+// variant is used by the RecordWrite stub. Because it does not update the
+// register it is not subject to partial register stalls.
+static ByteMnemonic byte_immediate_instr[] = {
+ {0x0c, "or", UNSET_OP_ORDER},
+ {0x24, "and", UNSET_OP_ORDER},
+ {0x34, "xor", UNSET_OP_ORDER},
+ {0x3c, "cmp", UNSET_OP_ORDER},
+ {-1, "", UNSET_OP_ORDER}
+};
+
+
static const char* const jump_conditional_mnem[] = {
/*0*/ "jo", "jno", "jc", "jnc",
/*4*/ "jz", "jnz", "jna", "ja",
@@ -149,7 +163,8 @@
REGISTER_INSTR,
MOVE_REG_INSTR,
CALL_JUMP_INSTR,
- SHORT_IMMEDIATE_INSTR
+ SHORT_IMMEDIATE_INSTR,
+ BYTE_IMMEDIATE_INSTR
};
@@ -198,6 +213,7 @@
CopyTable(zero_operands_instr, ZERO_OPERANDS_INSTR);
CopyTable(call_jump_instr, CALL_JUMP_INSTR);
CopyTable(short_immediate_instr, SHORT_IMMEDIATE_INSTR);
+ CopyTable(byte_immediate_instr, BYTE_IMMEDIATE_INSTR);
AddJumpConditionalShort();
SetTableRange(REGISTER_INSTR, 0x40, 0x47, "inc");
SetTableRange(REGISTER_INSTR, 0x48, 0x4F, "dec");
@@ -912,6 +928,12 @@
break;
}
+ case BYTE_IMMEDIATE_INSTR: {
+ AppendToBuffer("%s al, 0x%x", idesc.mnem, data[1]);
+ data += 2;
+ break;
+ }
+
case NO_INSTR:
processed = false;
break;
@@ -1346,11 +1368,6 @@
data += 2;
break;
- case 0x2C:
- AppendToBuffer("subb eax,0x%x", *reinterpret_cast<uint8_t*>(data+1));
- data += 2;
- break;
-
case 0xA9:
AppendToBuffer("test eax,0x%x", *reinterpret_cast<int32_t*>(data+1));
data += 5;
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