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Issue 660072: Added fast support for Math.pow. This simply calculates the result using the... (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: '' Created 10 years, 10 months ago
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1 // Copyright 2010 the V8 project authors. All rights reserved. 1 // Copyright 2010 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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3318 void CodeGenerator::GenerateIsNonNegativeSmi(ZoneList<Expression*>* args) { 3318 void CodeGenerator::GenerateIsNonNegativeSmi(ZoneList<Expression*>* args) {
3319 VirtualFrame::SpilledScope spilled_scope; 3319 VirtualFrame::SpilledScope spilled_scope;
3320 ASSERT(args->length() == 1); 3320 ASSERT(args->length() == 1);
3321 LoadAndSpill(args->at(0)); 3321 LoadAndSpill(args->at(0));
3322 frame_->EmitPop(r0); 3322 frame_->EmitPop(r0);
3323 __ tst(r0, Operand(kSmiTagMask | 0x80000000u)); 3323 __ tst(r0, Operand(kSmiTagMask | 0x80000000u));
3324 cc_reg_ = eq; 3324 cc_reg_ = eq;
3325 } 3325 }
3326 3326
3327 3327
3328 // Generates the Math.pow method - currently just calls runtime.
3329 void CodeGenerator::GeneratePow(ZoneList<Expression*>* args) {
3330 ASSERT(args->length() == 2);
3331 Load(args->at(0));
3332 Load(args->at(1));
3333 frame_->CallRuntime(Runtime::kMath_pow, 2);
3334 frame_->EmitPush(r0);
3335 }
3336
3328 // This should generate code that performs a charCodeAt() call or returns 3337 // This should generate code that performs a charCodeAt() call or returns
3329 // undefined in order to trigger the slow case, Runtime_StringCharCodeAt. 3338 // undefined in order to trigger the slow case, Runtime_StringCharCodeAt.
3330 // It is not yet implemented on ARM, so it always goes to the slow case. 3339 // It is not yet implemented on ARM, so it always goes to the slow case.
3331 void CodeGenerator::GenerateFastCharCodeAt(ZoneList<Expression*>* args) { 3340 void CodeGenerator::GenerateFastCharCodeAt(ZoneList<Expression*>* args) {
3332 VirtualFrame::SpilledScope spilled_scope; 3341 VirtualFrame::SpilledScope spilled_scope;
3333 ASSERT(args->length() == 2); 3342 ASSERT(args->length() == 2);
3334 Comment(masm_, "[ GenerateFastCharCodeAt"); 3343 Comment(masm_, "[ GenerateFastCharCodeAt");
3335 3344
3336 LoadAndSpill(args->at(0)); 3345 LoadAndSpill(args->at(0));
3337 LoadAndSpill(args->at(1)); 3346 LoadAndSpill(args->at(1));
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7657 7666
7658 // Just jump to runtime to add the two strings. 7667 // Just jump to runtime to add the two strings.
7659 __ bind(&string_add_runtime); 7668 __ bind(&string_add_runtime);
7660 __ TailCallRuntime(Runtime::kStringAdd, 2, 1); 7669 __ TailCallRuntime(Runtime::kStringAdd, 2, 1);
7661 } 7670 }
7662 7671
7663 7672
7664 #undef __ 7673 #undef __
7665 7674
7666 } } // namespace v8::internal 7675 } } // namespace v8::internal
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