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Unified Diff: src/mips64/simulator-mips64.cc

Issue 1182493007: Revert of MIPS64: Enable shorten-64-to-32 warning. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 5 years, 6 months ago
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Index: src/mips64/simulator-mips64.cc
diff --git a/src/mips64/simulator-mips64.cc b/src/mips64/simulator-mips64.cc
index 200a1bc80b0a4e1be0f585fb58eaa50d8e95ef25..48bfd97903916587c4af260852f31f202739050d 100644
--- a/src/mips64/simulator-mips64.cc
+++ b/src/mips64/simulator-mips64.cc
@@ -782,7 +782,7 @@
}
-static bool AllOnOnePage(uintptr_t start, size_t size) {
+static bool AllOnOnePage(uintptr_t start, int size) {
intptr_t start_page = (start & ~CachePage::kPageMask);
intptr_t end_page = ((start + size) & ~CachePage::kPageMask);
return start_page == end_page;
@@ -830,8 +830,9 @@
// Flush from start up to and not including start + size.
-void Simulator::FlushOnePage(v8::internal::HashMap* i_cache, intptr_t start,
- size_t size) {
+void Simulator::FlushOnePage(v8::internal::HashMap* i_cache,
+ intptr_t start,
+ int size) {
DCHECK(size <= CachePage::kPageSize);
DCHECK(AllOnOnePage(start, size - 1));
DCHECK((start & CachePage::kLineMask) == 0);
@@ -1154,7 +1155,7 @@
const int fparg2 = (kMipsAbi == kN64) ? 13 : 14;
*x = get_fpu_register_double(12);
*y = get_fpu_register_double(fparg2);
- *z = static_cast<int32_t>(get_register(a2));
+ *z = get_register(a2);
} else {
// TODO(plind): bad ABI stuff, refactor or remove.
// We use a char buffer to get around the strict-aliasing rules which
@@ -1630,7 +1631,7 @@
}
-void Simulator::WriteW(int64_t addr, int32_t value, Instruction* instr) {
+void Simulator::WriteW(int64_t addr, int value, Instruction* instr) {
if (addr >= 0 && addr < 0x400) {
// This has to be a NULL-dereference, drop into debugger.
PrintF("Memory write to bad address: 0x%08lx, pc=0x%08lx\n",
@@ -2182,10 +2183,14 @@
// Handle execution based on instruction types.
-void Simulator::ConfigureTypeRegister(Instruction* instr, int64_t* alu_out,
- int64_t* i64hilo, uint64_t* u64hilo,
- int64_t* next_pc, int* return_addr_reg,
- bool* do_interrupt, int64_t* i128resultH,
+void Simulator::ConfigureTypeRegister(Instruction* instr,
+ int64_t* alu_out,
+ int64_t* i64hilo,
+ uint64_t* u64hilo,
+ int64_t* next_pc,
+ int64_t* return_addr_reg,
+ bool* do_interrupt,
+ int64_t* i128resultH,
int64_t* i128resultL) {
// Every local variable declared here needs to be const.
// This is to make sure that changed values are sent back to
@@ -2193,13 +2198,13 @@
// Instruction fields.
const Opcode op = instr->OpcodeFieldRaw();
- const int32_t rs_reg = instr->RsValue();
+ const int64_t rs_reg = instr->RsValue();
const int64_t rs = get_register(rs_reg);
const uint64_t rs_u = static_cast<uint64_t>(rs);
- const int32_t rt_reg = instr->RtValue();
+ const int64_t rt_reg = instr->RtValue();
const int64_t rt = get_register(rt_reg);
const uint64_t rt_u = static_cast<uint64_t>(rt);
- const int32_t rd_reg = instr->RdValue();
+ const int64_t rd_reg = instr->RdValue();
const uint64_t sa = instr->SaValue();
const int32_t fs_reg = instr->FsValue();
@@ -2268,8 +2273,7 @@
// is special case of SRL instruction, added in MIPS32 Release 2.
// RS field is equal to 00001.
*alu_out = static_cast<int32_t>(
- base::bits::RotateRight32(static_cast<const uint32_t>(rt_u),
- static_cast<const uint32_t>(sa)));
+ base::bits::RotateRight32((uint32_t)rt_u, sa));
}
break;
case DSRL:
@@ -2303,8 +2307,7 @@
// This is special case od SRLV instruction, added in MIPS32
// Release 2. SA field is equal to 00001.
*alu_out = static_cast<int32_t>(
- base::bits::RotateRight32(static_cast<const uint32_t>(rt_u),
- static_cast<const uint32_t>(rs_u)));
+ base::bits::RotateRight32((uint32_t)rt_u, rs_u));
}
break;
case DSRLV:
@@ -2316,9 +2319,7 @@
// Logical right-rotate of a word by a variable number of bits.
// This is special case od SRLV instruction, added in MIPS32
// Release 2. SA field is equal to 00001.
- *alu_out =
- base::bits::RotateRight32(static_cast<const uint32_t>(rt_u),
- static_cast<const uint32_t>(rs_u));
+ *alu_out = base::bits::RotateRight32(rt_u, rs_u);
}
break;
case SRAV:
@@ -2384,11 +2385,11 @@
*alu_out = rs + rt;
break;
case ADDU: {
- int32_t alu32_out = static_cast<int32_t>(rs + rt);
- // Sign-extend result of 32bit operation into 64bit register.
- *alu_out = static_cast<int64_t>(alu32_out);
- break;
- }
+ int32_t alu32_out = rs + rt;
+ // Sign-extend result of 32bit operation into 64bit register.
+ *alu_out = static_cast<int64_t>(alu32_out);
+ }
+ break;
case DADDU:
*alu_out = rs + rt;
break;
@@ -2404,11 +2405,11 @@
*alu_out = rs - rt;
break;
case SUBU: {
- int32_t alu32_out = static_cast<int32_t>(rs - rt);
- // Sign-extend result of 32bit operation into 64bit register.
- *alu_out = static_cast<int64_t>(alu32_out);
- break;
- }
+ int32_t alu32_out = rs - rt;
+ // Sign-extend result of 32bit operation into 64bit register.
+ *alu_out = static_cast<int64_t>(alu32_out);
+ }
+ break;
case DSUBU:
*alu_out = rs - rt;
break;
@@ -2480,8 +2481,7 @@
case CLZ:
// MIPS32 spec: If no bits were set in GPR rs, the result written to
// GPR rd is 32.
- *alu_out =
- base::bits::CountLeadingZeros32(static_cast<uint32_t>(rs_u));
+ *alu_out = base::bits::CountLeadingZeros32(rs_u);
break;
default:
UNREACHABLE();
@@ -2586,9 +2586,9 @@
void Simulator::DecodeTypeRegisterSRsType(Instruction* instr,
- const int32_t fs_reg,
- const int32_t ft_reg,
- const int32_t fd_reg) {
+ const int32_t& fs_reg,
+ const int32_t& ft_reg,
+ const int32_t& fd_reg) {
float fs, ft, fd;
fs = get_fpu_register_float(fs_reg);
ft = get_fpu_register_float(ft_reg);
@@ -2988,9 +2988,9 @@
void Simulator::DecodeTypeRegisterDRsType(Instruction* instr,
- const int32_t fs_reg,
- const int32_t ft_reg,
- const int32_t fd_reg) {
+ const int32_t& fs_reg,
+ const int32_t& ft_reg,
+ const int32_t& fd_reg) {
double ft, fs, fd;
uint32_t cc, fcsr_cc;
fs = get_fpu_register_double(fs_reg);
@@ -3387,9 +3387,9 @@
void Simulator::DecodeTypeRegisterWRsType(Instruction* instr,
- const int32_t fs_reg,
- const int32_t fd_reg,
- const int32_t ft_reg,
+ const int32_t& fs_reg,
+ const int32_t& fd_reg,
+ const int32_t& ft_reg,
int64_t& alu_out) {
float fs = get_fpu_register_float(fs_reg);
float ft = get_fpu_register_float(ft_reg);
@@ -3482,9 +3482,9 @@
void Simulator::DecodeTypeRegisterLRsType(Instruction* instr,
- const int32_t fs_reg,
- const int32_t fd_reg,
- const int32_t ft_reg) {
+ const int32_t& fs_reg,
+ const int32_t& fd_reg,
+ const int32_t& ft_reg) {
double fs = get_fpu_register_double(fs_reg);
double ft = get_fpu_register_double(ft_reg);
int64_t i64;
@@ -3575,11 +3575,12 @@
}
}
+
void Simulator::DecodeTypeRegisterCOP1(
- Instruction* instr, const int32_t rs_reg, const int64_t rs,
- const uint64_t rs_u, const int32_t rt_reg, const int64_t rt,
- const uint64_t rt_u, const int32_t rd_reg, const int32_t fr_reg,
- const int32_t fs_reg, const int32_t ft_reg, const int32_t fd_reg,
+ Instruction* instr, const int32_t& rs_reg, const int64_t& rs,
+ const uint64_t& rs_u, const int32_t& rt_reg, const int64_t& rt,
+ const uint64_t& rt_u, const int32_t& rd_reg, const int32_t& fr_reg,
+ const int32_t& fs_reg, const int32_t& ft_reg, const int32_t& fd_reg,
int64_t& alu_out) {
switch (instr->RsFieldRaw()) {
case BC1: // Branch on coprocessor condition.
@@ -3598,19 +3599,18 @@
case CTC1:
// At the moment only FCSR is supported.
DCHECK(fs_reg == kFCSRRegister);
- FCSR_ = static_cast<uint32_t>(registers_[rt_reg]);
+ FCSR_ = registers_[rt_reg];
break;
case MTC1:
// Hardware writes upper 32-bits to zero on mtc1.
set_fpu_register_hi_word(fs_reg, 0);
- set_fpu_register_word(fs_reg, static_cast<int32_t>(registers_[rt_reg]));
+ set_fpu_register_word(fs_reg, registers_[rt_reg]);
break;
case DMTC1:
set_fpu_register(fs_reg, registers_[rt_reg]);
break;
case MTHC1:
- set_fpu_register_hi_word(fs_reg,
- static_cast<int32_t>(registers_[rt_reg]));
+ set_fpu_register_hi_word(fs_reg, registers_[rt_reg]);
break;
case S:
DecodeTypeRegisterSRsType(instr, fs_reg, ft_reg, fd_reg);
@@ -3631,10 +3631,10 @@
void Simulator::DecodeTypeRegisterCOP1X(Instruction* instr,
- const int32_t fr_reg,
- const int32_t fs_reg,
- const int32_t ft_reg,
- const int32_t fd_reg) {
+ const int32_t& fr_reg,
+ const int32_t& fs_reg,
+ const int32_t& ft_reg,
+ const int32_t& fd_reg) {
switch (instr->FunctionFieldRaw()) {
case MADD_D:
double fr, ft, fs;
@@ -3650,14 +3650,13 @@
void Simulator::DecodeTypeRegisterSPECIAL(
- Instruction* instr, const int32_t rs_reg, const int64_t rs,
- const uint64_t rs_u, const int32_t rt_reg, const int64_t rt,
- const uint64_t rt_u, const int32_t rd_reg, const int32_t fr_reg,
- const int32_t fs_reg, const int32_t ft_reg, const int32_t fd_reg,
- const int64_t i64hilo, const uint64_t u64hilo, const int64_t alu_out,
- const bool do_interrupt, const int64_t current_pc, const int64_t next_pc,
- const int32_t return_addr_reg, const int64_t i128resultH,
- const int64_t i128resultL) {
+ Instruction* instr, const int64_t& rs_reg, const int64_t& rs,
+ const uint64_t& rs_u, const int64_t& rt_reg, const int64_t& rt,
+ const uint64_t& rt_u, const int64_t& rd_reg, const int32_t& fr_reg,
+ const int32_t& fs_reg, const int32_t& ft_reg, const int64_t& fd_reg,
+ int64_t& i64hilo, uint64_t& u64hilo, int64_t& alu_out, bool& do_interrupt,
+ int64_t& current_pc, int64_t& next_pc, int64_t& return_addr_reg,
+ int64_t& i128resultH, int64_t& i128resultL) {
switch (instr->FunctionFieldRaw()) {
case SELEQZ_S:
DCHECK(kArchVariant == kMips64r6);
@@ -3821,8 +3820,8 @@
void Simulator::DecodeTypeRegisterSPECIAL2(Instruction* instr,
- const int32_t rd_reg,
- int64_t alu_out) {
+ const int64_t& rd_reg,
+ int64_t& alu_out) {
switch (instr->FunctionFieldRaw()) {
case MUL:
set_register(rd_reg, alu_out);
@@ -3838,9 +3837,9 @@
void Simulator::DecodeTypeRegisterSPECIAL3(Instruction* instr,
- const int32_t rt_reg,
- const int32_t rd_reg,
- const int64_t alu_out) {
+ const int64_t& rt_reg,
+ const int64_t& rd_reg,
+ int64_t& alu_out) {
switch (instr->FunctionFieldRaw()) {
case INS:
// Ins instr leaves result in Rt, rather than Rd.
@@ -3867,13 +3866,13 @@
void Simulator::DecodeTypeRegister(Instruction* instr) {
// Instruction fields.
const Opcode op = instr->OpcodeFieldRaw();
- const int32_t rs_reg = instr->RsValue();
+ const int64_t rs_reg = instr->RsValue();
const int64_t rs = get_register(rs_reg);
const uint64_t rs_u = static_cast<uint32_t>(rs);
- const int32_t rt_reg = instr->RtValue();
+ const int64_t rt_reg = instr->RtValue();
const int64_t rt = get_register(rt_reg);
const uint64_t rt_u = static_cast<uint32_t>(rt);
- const int32_t rd_reg = instr->RdValue();
+ const int64_t rd_reg = instr->RdValue();
const int32_t fr_reg = instr->FrValue();
const int32_t fs_reg = instr->FsValue();
@@ -3895,7 +3894,7 @@
int64_t current_pc = get_pc();
// Next pc
int64_t next_pc = 0;
- int32_t return_addr_reg = 31;
+ int64_t return_addr_reg = 31;
int64_t i128resultH;
int64_t i128resultL;
@@ -3951,7 +3950,7 @@
Opcode op = instr->OpcodeFieldRaw();
int64_t rs = get_register(instr->RsValue());
uint64_t rs_u = static_cast<uint64_t>(rs);
- int32_t rt_reg = instr->RtValue(); // Destination register.
+ int64_t rt_reg = instr->RtValue(); // Destination register.
int64_t rt = get_register(rt_reg);
int16_t imm16 = instr->Imm16Value();
@@ -4094,11 +4093,11 @@
alu_out = rs + se_imm16;
break;
case ADDIU: {
- int32_t alu32_out = static_cast<int32_t>(rs + se_imm16);
- // Sign-extend result of 32bit operation into 64bit register.
- alu_out = static_cast<int64_t>(alu32_out);
- break;
- }
+ int32_t alu32_out = rs + se_imm16;
+ // Sign-extend result of 32bit operation into 64bit register.
+ alu_out = static_cast<int64_t>(alu32_out);
+ }
+ break;
case DADDIU:
alu_out = rs + se_imm16;
break;
@@ -4109,20 +4108,20 @@
alu_out = (rs_u < static_cast<uint64_t>(se_imm16)) ? 1 : 0;
break;
case ANDI:
- alu_out = rs & oe_imm16;
+ alu_out = rs & oe_imm16;
break;
case ORI:
- alu_out = rs | oe_imm16;
+ alu_out = rs | oe_imm16;
break;
case XORI:
- alu_out = rs ^ oe_imm16;
+ alu_out = rs ^ oe_imm16;
break;
case LUI: {
- int32_t alu32_out = static_cast<int32_t>(oe_imm16 << 16);
- // Sign-extend result of 32bit operation into 64bit register.
- alu_out = static_cast<int64_t>(alu32_out);
- break;
- }
+ int32_t alu32_out = (oe_imm16 << 16);
+ // Sign-extend result of 32bit operation into 64bit register.
+ alu_out = static_cast<int64_t>(alu32_out);
+ }
+ break;
// ------------- Memory instructions.
case LB:
addr = rs + se_imm16;
@@ -4272,16 +4271,16 @@
WriteH(addr, static_cast<uint16_t>(rt), instr);
break;
case SWL:
- WriteW(addr, static_cast<int32_t>(mem_value), instr);
+ WriteW(addr, mem_value, instr);
break;
case SW:
- WriteW(addr, static_cast<int32_t>(rt), instr);
+ WriteW(addr, rt, instr);
break;
case SD:
Write2W(addr, rt, instr);
break;
case SWR:
- WriteW(addr, static_cast<int32_t>(mem_value), instr);
+ WriteW(addr, mem_value, instr);
break;
case LWC1:
set_fpu_register(ft_reg, kFPUInvalidResult); // Trash upper 32 bits.
@@ -4292,7 +4291,7 @@
break;
case SWC1:
addr = rs + se_imm16;
- WriteW(addr, static_cast<int32_t>(get_fpu_register(ft_reg)), instr);
+ WriteW(addr, get_fpu_register(ft_reg), instr);
break;
case SDC1:
addr = rs + se_imm16;
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