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ARM: Fix handling of return value of compare_doubles in the simulator.

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Review URL: http://codereview.chromium.org/6904124

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7722 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
karlklose@chromium.org 2011-04-29 11:16:09 +00:00
parent 4f41d895b0
commit 03459506e8
1 changed files with 17 additions and 4 deletions
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21
src/arm/simulator-arm.cc
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@ -1770,9 +1770,9 @@ void Simulator::SoftwareInterrupt(Instruction* instr) {
intptr_t external =
reinterpret_cast<intptr_t>(redirection->external_function());
if (fp_call) {
SimulatorRuntimeFPCall target =
reinterpret_cast<SimulatorRuntimeFPCall>(external);
if (::v8::internal::FLAG_trace_sim || !stack_aligned) {
SimulatorRuntimeFPCall target =
reinterpret_cast<SimulatorRuntimeFPCall>(external);
double dval0, dval1;
int32_t ival;
switch (redirection->type()) {
@ -1785,7 +1785,7 @@ void Simulator::SoftwareInterrupt(Instruction* instr) {
case ExternalReference::BUILTIN_FP_CALL:
GetFpArgs(&dval0);
PrintF("Call to host function at %p with arg %f",
FUNCTION_ADDR(target), dval1);
FUNCTION_ADDR(target), dval0);
break;
case ExternalReference::BUILTIN_FP_INT_CALL:
GetFpArgs(&dval0, &ival);
@ -1802,9 +1802,22 @@ void Simulator::SoftwareInterrupt(Instruction* instr) {
PrintF("\n");
}
CHECK(stack_aligned);
double result = target(arg0, arg1, arg2, arg3);
if (redirection->type() != ExternalReference::BUILTIN_COMPARE_CALL) {
SimulatorRuntimeFPCall target =
reinterpret_cast<SimulatorRuntimeFPCall>(external);
double result = target(arg0, arg1, arg2, arg3);
SetFpResult(result);
} else {
SimulatorRuntimeCall target =
reinterpret_cast<SimulatorRuntimeCall>(external);
int64_t result = target(arg0, arg1, arg2, arg3, arg4, arg5);
int32_t lo_res = static_cast<int32_t>(result);
int32_t hi_res = static_cast<int32_t>(result >> 32);
if (::v8::internal::FLAG_trace_sim) {
PrintF("Returned %08x\n", lo_res);
}
set_register(r0, lo_res);
set_register(r1, hi_res);
}
} else if (redirection->type() == ExternalReference::DIRECT_API_CALL) {
SimulatorRuntimeDirectApiCall target =