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Bug 1420838 : [MIPS32] Add atomic.wait callout support into simulator; r=lth

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extra : histedit_source : 122261568f22223d07c05cf1dd47b04e7e4af8a9
This commit is contained in:
Dragan Mladjenovic 2017-12-12 14:36:29 +01:00
parent e67ea895d6
commit 1f140ec503
1 changed files with 30 additions and 0 deletions
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30
js/src/jit/mips32/Simulator-mips32.cpp
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@ -1925,6 +1925,10 @@ int
Simulator::loadLinkedW(uint32_t addr, SimInstruction* instr)
{
if ((addr & kPointerAlignmentMask) == 0) {
if (handleWasmFault(addr, 1))
return -1;
volatile int32_t* ptr = reinterpret_cast<volatile int32_t*>(addr);
int32_t value = *ptr;
lastLLValue_ = value;
@ -2023,6 +2027,10 @@ typedef int64_t (*Prototype_General7)(int32_t arg0, int32_t arg1, int32_t arg2,
int32_t arg4, int32_t arg5, int32_t arg6);
typedef int64_t (*Prototype_General8)(int32_t arg0, int32_t arg1, int32_t arg2, int32_t arg3,
int32_t arg4, int32_t arg5, int32_t arg6, int32_t arg7);
typedef int64_t (*Prototype_GeneralGeneralGeneralInt64)(int32_t arg0, int32_t arg1, int32_t arg2,
int64_t arg3);
typedef int64_t (*Prototype_GeneralGeneralInt64Int64)(int32_t arg0, int32_t arg1, int64_t arg2,
int64_t arg3);
typedef double (*Prototype_Double_None)();
typedef double (*Prototype_Double_Double)(double arg0);
@ -2046,6 +2054,13 @@ typedef double (*Prototype_Double_DoubleDoubleDouble)(double arg0, double arg1,
typedef double (*Prototype_Double_DoubleDoubleDoubleDouble)(double arg0, double arg1,
double arg2, double arg3);
static int64_t
MakeInt64(int32_t first, int32_t second)
{
// Little-endian order.
return ((int64_t)second << 32) | (uint32_t)first;
}
// Software interrupt instructions are used by the simulator to call into C++.
void
Simulator::softwareInterrupt(SimInstruction* instr)
@ -2154,6 +2169,21 @@ Simulator::softwareInterrupt(SimInstruction* instr)
setRegister(v0, res);
break;
}
case Args_Int_GeneralGeneralGeneralInt64: {
Prototype_GeneralGeneralGeneralInt64 target =
reinterpret_cast<Prototype_GeneralGeneralGeneralInt64>(external);
// The int64 arg is not split across register and stack
int64_t result = target(arg0, arg1, arg2, MakeInt64(arg4, arg5));
setCallResult(result);
break;
}
case Args_Int_GeneralGeneralInt64Int64: {
Prototype_GeneralGeneralInt64Int64 target =
reinterpret_cast<Prototype_GeneralGeneralInt64Int64>(external);
int64_t result = target(arg0, arg1, MakeInt64(arg2, arg3), MakeInt64(arg4, arg5));
setCallResult(result);
break;
}
case Args_Int64_Double: {
double dval0, dval1;
int32_t ival;