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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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258 void SmiUntag(Register reg, Label* is_smi) { | 258 void SmiUntag(Register reg, Label* is_smi) { |
259 ASSERT(kSmiTagSize == 1); | 259 ASSERT(kSmiTagSize == 1); |
260 sar(reg, kSmiTagSize); | 260 sar(reg, kSmiTagSize); |
261 ASSERT(kSmiTag == 0); | 261 ASSERT(kSmiTag == 0); |
262 j(not_carry, is_smi); | 262 j(not_carry, is_smi); |
263 } | 263 } |
264 | 264 |
265 // Jump the register contains a smi. | 265 // Jump the register contains a smi. |
266 inline void JumpIfSmi(Register value, Label* smi_label) { | 266 inline void JumpIfSmi(Register value, Label* smi_label) { |
267 test(value, Immediate(kSmiTagMask)); | 267 test(value, Immediate(kSmiTagMask)); |
268 j(zero, smi_label, not_taken); | 268 j(zero, smi_label, Label::kFar, not_taken); |
269 } | 269 } |
270 // Jump if register contain a non-smi. | 270 // Jump if register contain a non-smi. |
271 inline void JumpIfNotSmi(Register value, Label* not_smi_label) { | 271 inline void JumpIfNotSmi(Register value, Label* not_smi_label) { |
272 test(value, Immediate(kSmiTagMask)); | 272 test(value, Immediate(kSmiTagMask)); |
273 j(not_zero, not_smi_label, not_taken); | 273 j(not_zero, not_smi_label, Label::kFar, not_taken); |
274 } | 274 } |
275 | 275 |
276 // Assumes input is a heap object. | 276 // Assumes input is a heap object. |
277 void JumpIfNotNumber(Register reg, TypeInfo info, Label* on_not_number); | 277 void JumpIfNotNumber(Register reg, TypeInfo info, Label* on_not_number); |
278 | 278 |
279 // Assumes input is a heap number. Jumps on things out of range. Also jumps | 279 // Assumes input is a heap number. Jumps on things out of range. Also jumps |
280 // on the min negative int32. Ignores frational parts. | 280 // on the min negative int32. Ignores frational parts. |
281 void ConvertToInt32(Register dst, | 281 void ConvertToInt32(Register dst, |
282 Register src, // Can be the same as dst. | 282 Register src, // Can be the same as dst. |
283 Register scratch, // Can be no_reg or dst, but not src. | 283 Register scratch, // Can be no_reg or dst, but not src. |
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781 } \ | 781 } \ |
782 masm-> | 782 masm-> |
783 #else | 783 #else |
784 #define ACCESS_MASM(masm) masm-> | 784 #define ACCESS_MASM(masm) masm-> |
785 #endif | 785 #endif |
786 | 786 |
787 | 787 |
788 } } // namespace v8::internal | 788 } } // namespace v8::internal |
789 | 789 |
790 #endif // V8_IA32_MACRO_ASSEMBLER_IA32_H_ | 790 #endif // V8_IA32_MACRO_ASSEMBLER_IA32_H_ |
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