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Issue 298533002: For arm, chooses hard vs. soft fp ABI based on compiler. (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/
Patch Set: Created 6 years, 7 months ago
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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
2 // for details. All rights reserved. Use of this source code is governed by a 2 // for details. All rights reserved. Use of this source code is governed by a
3 // BSD-style license that can be found in the LICENSE file. 3 // BSD-style license that can be found in the LICENSE file.
4 4
5 #include <math.h> // for isnan. 5 #include <math.h> // for isnan.
6 #include <setjmp.h> 6 #include <setjmp.h>
7 #include <stdlib.h> 7 #include <stdlib.h>
8 8
9 #include "vm/globals.h" 9 #include "vm/globals.h"
10 #if defined(TARGET_ARCH_ARM) 10 #if defined(TARGET_ARCH_ARM)
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1451 SimulatorLeafRuntimeCall target = 1451 SimulatorLeafRuntimeCall target =
1452 reinterpret_cast<SimulatorLeafRuntimeCall>(external); 1452 reinterpret_cast<SimulatorLeafRuntimeCall>(external);
1453 r0 = target(r0, r1, r2, r3); 1453 r0 = target(r0, r1, r2, r3);
1454 set_register(R0, r0); // Set returned result from function. 1454 set_register(R0, r0); // Set returned result from function.
1455 set_register(R1, icount_); // Zap unused result register. 1455 set_register(R1, icount_); // Zap unused result register.
1456 } else if (redirection->call_kind() == kLeafFloatRuntimeCall) { 1456 } else if (redirection->call_kind() == kLeafFloatRuntimeCall) {
1457 ASSERT((0 <= redirection->argument_count()) && 1457 ASSERT((0 <= redirection->argument_count()) &&
1458 (redirection->argument_count() <= 2)); 1458 (redirection->argument_count() <= 2));
1459 SimulatorLeafFloatRuntimeCall target = 1459 SimulatorLeafFloatRuntimeCall target =
1460 reinterpret_cast<SimulatorLeafFloatRuntimeCall>(external); 1460 reinterpret_cast<SimulatorLeafFloatRuntimeCall>(external);
1461 #if defined(ARM_FLOAT_ABI_HARD) 1461 if (TargetCPUFeatures::hardfp_supported()) {
1462 // If we're doing "hardfp", the double arguments are already in the 1462 // If we're doing "hardfp", the double arguments are already in the
1463 // floating point registers. 1463 // floating point registers.
1464 double d0 = get_dregister(D0); 1464 double d0 = get_dregister(D0);
1465 double d1 = get_dregister(D1); 1465 double d1 = get_dregister(D1);
1466 d0 = target(d0, d1); 1466 d0 = target(d0, d1);
1467 set_dregister(D0, d0); 1467 set_dregister(D0, d0);
1468 #else 1468 } else {
1469 // If we're not doing "hardfp", we must be doing "soft" or "softfp", 1469 // If we're not doing "hardfp", we must be doing "soft" or "softfp",
1470 // So take the double arguments from the integer registers. 1470 // So take the double arguments from the integer registers.
1471 uint32_t r0 = get_register(R0); 1471 uint32_t r0 = get_register(R0);
1472 int32_t r1 = get_register(R1); 1472 int32_t r1 = get_register(R1);
1473 uint32_t r2 = get_register(R2); 1473 uint32_t r2 = get_register(R2);
1474 int32_t r3 = get_register(R3); 1474 int32_t r3 = get_register(R3);
1475 int64_t a0 = Utils::LowHighTo64Bits(r0, r1); 1475 int64_t a0 = Utils::LowHighTo64Bits(r0, r1);
1476 int64_t a1 = Utils::LowHighTo64Bits(r2, r3); 1476 int64_t a1 = Utils::LowHighTo64Bits(r2, r3);
1477 double d0 = bit_cast<double, int64_t>(a0); 1477 double d0 = bit_cast<double, int64_t>(a0);
1478 double d1 = bit_cast<double, int64_t>(a1); 1478 double d1 = bit_cast<double, int64_t>(a1);
1479 d0 = target(d0, d1); 1479 d0 = target(d0, d1);
1480 a0 = bit_cast<int64_t, double>(d0); 1480 a0 = bit_cast<int64_t, double>(d0);
1481 r0 = Utils::Low32Bits(a0); 1481 r0 = Utils::Low32Bits(a0);
1482 r1 = Utils::High32Bits(a0); 1482 r1 = Utils::High32Bits(a0);
1483 set_register(R0, r0); 1483 set_register(R0, r0);
1484 set_register(R1, r1); 1484 set_register(R1, r1);
1485 #endif 1485 }
1486 } else if (redirection->call_kind() == kBootstrapNativeCall) { 1486 } else if (redirection->call_kind() == kBootstrapNativeCall) {
1487 NativeArguments* arguments; 1487 NativeArguments* arguments;
1488 arguments = reinterpret_cast<NativeArguments*>(get_register(R0)); 1488 arguments = reinterpret_cast<NativeArguments*>(get_register(R0));
1489 SimulatorBootstrapNativeCall target = 1489 SimulatorBootstrapNativeCall target =
1490 reinterpret_cast<SimulatorBootstrapNativeCall>(external); 1490 reinterpret_cast<SimulatorBootstrapNativeCall>(external);
1491 target(arguments); 1491 target(arguments);
1492 set_register(R0, icount_); // Zap result register from void function. 1492 set_register(R0, icount_); // Zap result register from void function.
1493 } else { 1493 } else {
1494 ASSERT(redirection->call_kind() == kNativeCall); 1494 ASSERT(redirection->call_kind() == kNativeCall);
1495 NativeArguments* arguments; 1495 NativeArguments* arguments;
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3719 set_register(kExceptionObjectReg, bit_cast<int32_t>(raw_exception)); 3719 set_register(kExceptionObjectReg, bit_cast<int32_t>(raw_exception));
3720 set_register(kStackTraceObjectReg, bit_cast<int32_t>(raw_stacktrace)); 3720 set_register(kStackTraceObjectReg, bit_cast<int32_t>(raw_stacktrace));
3721 buf->Longjmp(); 3721 buf->Longjmp();
3722 } 3722 }
3723 3723
3724 } // namespace dart 3724 } // namespace dart
3725 3725
3726 #endif // !defined(HOST_ARCH_ARM) 3726 #endif // !defined(HOST_ARCH_ARM)
3727 3727
3728 #endif // defined TARGET_ARCH_ARM 3728 #endif // defined TARGET_ARCH_ARM
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