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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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991 // floating point value at memory location (dst + 4 * wordoffset) | 991 // floating point value at memory location (dst + 4 * wordoffset) |
992 // If FPU is available use it for conversion. | 992 // If FPU is available use it for conversion. |
993 static void StoreIntAsFloat(MacroAssembler* masm, | 993 static void StoreIntAsFloat(MacroAssembler* masm, |
994 Register dst, | 994 Register dst, |
995 Register wordoffset, | 995 Register wordoffset, |
996 Register ival, | 996 Register ival, |
997 Register fval, | 997 Register fval, |
998 Register scratch1, | 998 Register scratch1, |
999 Register scratch2) { | 999 Register scratch2) { |
1000 if (CpuFeatures::IsSupported(FPU)) { | 1000 if (CpuFeatures::IsSupported(FPU)) { |
1001 CpuFeatures::Scope scope(FPU); | 1001 CpuFeatureScope scope(masm, FPU); |
1002 __ mtc1(ival, f0); | 1002 __ mtc1(ival, f0); |
1003 __ cvt_s_w(f0, f0); | 1003 __ cvt_s_w(f0, f0); |
1004 __ sll(scratch1, wordoffset, 2); | 1004 __ sll(scratch1, wordoffset, 2); |
1005 __ addu(scratch1, dst, scratch1); | 1005 __ addu(scratch1, dst, scratch1); |
1006 __ swc1(f0, MemOperand(scratch1, 0)); | 1006 __ swc1(f0, MemOperand(scratch1, 0)); |
1007 } else { | 1007 } else { |
1008 // FPU is not available, do manual conversions. | 1008 // FPU is not available, do manual conversions. |
1009 | 1009 |
1010 Label not_special, done; | 1010 Label not_special, done; |
1011 // Move sign bit from source to destination. This works because the sign | 1011 // Move sign bit from source to destination. This works because the sign |
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2101 // -- ra : return address | 2101 // -- ra : return address |
2102 // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) | 2102 // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
2103 // -- ... | 2103 // -- ... |
2104 // -- sp[argc * 4] : receiver | 2104 // -- sp[argc * 4] : receiver |
2105 // ----------------------------------- | 2105 // ----------------------------------- |
2106 | 2106 |
2107 if (!CpuFeatures::IsSupported(FPU)) { | 2107 if (!CpuFeatures::IsSupported(FPU)) { |
2108 return Handle<Code>::null(); | 2108 return Handle<Code>::null(); |
2109 } | 2109 } |
2110 | 2110 |
2111 CpuFeatures::Scope scope_fpu(FPU); | 2111 CpuFeatureScope scope_fpu(masm(), FPU); |
2112 const int argc = arguments().immediate(); | 2112 const int argc = arguments().immediate(); |
2113 // If the object is not a JSObject or we got an unexpected number of | 2113 // If the object is not a JSObject or we got an unexpected number of |
2114 // arguments, bail out to the regular call. | 2114 // arguments, bail out to the regular call. |
2115 if (!object->IsJSObject() || argc != 1) return Handle<Code>::null(); | 2115 if (!object->IsJSObject() || argc != 1) return Handle<Code>::null(); |
2116 | 2116 |
2117 Label miss, slow; | 2117 Label miss, slow; |
2118 GenerateNameCheck(name, &miss); | 2118 GenerateNameCheck(name, &miss); |
2119 | 2119 |
2120 if (cell.is_null()) { | 2120 if (cell.is_null()) { |
2121 __ lw(a1, MemOperand(sp, 1 * kPointerSize)); | 2121 __ lw(a1, MemOperand(sp, 1 * kPointerSize)); |
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3346 | 3346 |
3347 | 3347 |
3348 static void GenerateSmiKeyCheck(MacroAssembler* masm, | 3348 static void GenerateSmiKeyCheck(MacroAssembler* masm, |
3349 Register key, | 3349 Register key, |
3350 Register scratch0, | 3350 Register scratch0, |
3351 Register scratch1, | 3351 Register scratch1, |
3352 FPURegister double_scratch0, | 3352 FPURegister double_scratch0, |
3353 FPURegister double_scratch1, | 3353 FPURegister double_scratch1, |
3354 Label* fail) { | 3354 Label* fail) { |
3355 if (CpuFeatures::IsSupported(FPU)) { | 3355 if (CpuFeatures::IsSupported(FPU)) { |
3356 CpuFeatures::Scope scope(FPU); | 3356 CpuFeatureScope scope(masm, FPU); |
3357 Label key_ok; | 3357 Label key_ok; |
3358 // Check for smi or a smi inside a heap number. We convert the heap | 3358 // Check for smi or a smi inside a heap number. We convert the heap |
3359 // number and check if the conversion is exact and fits into the smi | 3359 // number and check if the conversion is exact and fits into the smi |
3360 // range. | 3360 // range. |
3361 __ JumpIfSmi(key, &key_ok); | 3361 __ JumpIfSmi(key, &key_ok); |
3362 __ CheckMap(key, | 3362 __ CheckMap(key, |
3363 scratch0, | 3363 scratch0, |
3364 Heap::kHeapNumberMapRootIndex, | 3364 Heap::kHeapNumberMapRootIndex, |
3365 fail, | 3365 fail, |
3366 DONT_DO_SMI_CHECK); | 3366 DONT_DO_SMI_CHECK); |
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3482 if (CpuFeatures::IsSupported(FPU)) { | 3482 if (CpuFeatures::IsSupported(FPU)) { |
3483 destination = FloatingPointHelper::kFPURegisters; | 3483 destination = FloatingPointHelper::kFPURegisters; |
3484 } else { | 3484 } else { |
3485 destination = FloatingPointHelper::kCoreRegisters; | 3485 destination = FloatingPointHelper::kCoreRegisters; |
3486 } | 3486 } |
3487 FloatingPointHelper::ConvertIntToDouble( | 3487 FloatingPointHelper::ConvertIntToDouble( |
3488 masm, t1, destination, | 3488 masm, t1, destination, |
3489 f0, t2, t3, // These are: double_dst, dst_mantissa, dst_exponent. | 3489 f0, t2, t3, // These are: double_dst, dst_mantissa, dst_exponent. |
3490 t0, f2); // These are: scratch2, single_scratch. | 3490 t0, f2); // These are: scratch2, single_scratch. |
3491 if (destination == FloatingPointHelper::kFPURegisters) { | 3491 if (destination == FloatingPointHelper::kFPURegisters) { |
3492 CpuFeatures::Scope scope(FPU); | 3492 CpuFeatureScope scope(masm(), FPU); |
3493 __ sdc1(f0, MemOperand(a3, 0)); | 3493 __ sdc1(f0, MemOperand(a3, 0)); |
3494 } else { | 3494 } else { |
3495 __ sw(t2, MemOperand(a3, 0)); | 3495 __ sw(t2, MemOperand(a3, 0)); |
3496 __ sw(t3, MemOperand(a3, Register::kSizeInBytes)); | 3496 __ sw(t3, MemOperand(a3, Register::kSizeInBytes)); |
3497 } | 3497 } |
3498 break; | 3498 break; |
3499 case FAST_ELEMENTS: | 3499 case FAST_ELEMENTS: |
3500 case FAST_SMI_ELEMENTS: | 3500 case FAST_SMI_ELEMENTS: |
3501 case FAST_DOUBLE_ELEMENTS: | 3501 case FAST_DOUBLE_ELEMENTS: |
3502 case FAST_HOLEY_ELEMENTS: | 3502 case FAST_HOLEY_ELEMENTS: |
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3520 | 3520 |
3521 __ lw(a3, FieldMemOperand(a3, ExternalArray::kExternalPointerOffset)); | 3521 __ lw(a3, FieldMemOperand(a3, ExternalArray::kExternalPointerOffset)); |
3522 | 3522 |
3523 // a3: base pointer of external storage. | 3523 // a3: base pointer of external storage. |
3524 | 3524 |
3525 // The WebGL specification leaves the behavior of storing NaN and | 3525 // The WebGL specification leaves the behavior of storing NaN and |
3526 // +/-Infinity into integer arrays basically undefined. For more | 3526 // +/-Infinity into integer arrays basically undefined. For more |
3527 // reproducible behavior, convert these to zero. | 3527 // reproducible behavior, convert these to zero. |
3528 | 3528 |
3529 if (CpuFeatures::IsSupported(FPU)) { | 3529 if (CpuFeatures::IsSupported(FPU)) { |
3530 CpuFeatures::Scope scope(FPU); | 3530 CpuFeatureScope scope(masm, FPU); |
3531 | 3531 |
3532 __ ldc1(f0, FieldMemOperand(a0, HeapNumber::kValueOffset)); | 3532 __ ldc1(f0, FieldMemOperand(a0, HeapNumber::kValueOffset)); |
3533 | 3533 |
3534 if (elements_kind == EXTERNAL_FLOAT_ELEMENTS) { | 3534 if (elements_kind == EXTERNAL_FLOAT_ELEMENTS) { |
3535 __ cvt_s_d(f0, f0); | 3535 __ cvt_s_d(f0, f0); |
3536 __ sll(t8, key, 1); | 3536 __ sll(t8, key, 1); |
3537 __ addu(t8, a3, t8); | 3537 __ addu(t8, a3, t8); |
3538 __ swc1(f0, MemOperand(t8, 0)); | 3538 __ swc1(f0, MemOperand(t8, 0)); |
3539 } else if (elements_kind == EXTERNAL_DOUBLE_ELEMENTS) { | 3539 } else if (elements_kind == EXTERNAL_DOUBLE_ELEMENTS) { |
3540 __ sll(t8, key, 2); | 3540 __ sll(t8, key, 2); |
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4111 __ Jump(ic_slow, RelocInfo::CODE_TARGET); | 4111 __ Jump(ic_slow, RelocInfo::CODE_TARGET); |
4112 } | 4112 } |
4113 } | 4113 } |
4114 | 4114 |
4115 | 4115 |
4116 #undef __ | 4116 #undef __ |
4117 | 4117 |
4118 } } // namespace v8::internal | 4118 } } // namespace v8::internal |
4119 | 4119 |
4120 #endif // V8_TARGET_ARCH_MIPS | 4120 #endif // V8_TARGET_ARCH_MIPS |
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