runtime/vm/intrinsifier_x64.cc - Issue 22839003: Polymorphic inlining for some recognized methods in the optimizing compiler.

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Unified Diff: runtime/vm/intrinsifier_x64.cc

Issue 22839003: Polymorphic inlining for some recognized methods in the optimizing compiler. (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/

Patch Set: fixed modulo performance regression Created 7 years, 4 months ago

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Index: runtime/vm/intrinsifier_x64.cc

===================================================================

--- runtime/vm/intrinsifier_x64.cc (revision 26420)

+++ runtime/vm/intrinsifier_x64.cc (working copy)

@@ -703,12 +703,10 @@

// res = res + right;

// }

-bool Intrinsifier::Integer_modulo(Assembler* assembler) {

+bool Intrinsifier::Integer_moduloFromInteger(Assembler* assembler) {

Label fall_through, negative_result;

TestBothArgumentsSmis(assembler, &fall_through);

- // RAX: right argument (divisor)

- __ movq(RCX, RAX);

- __ movq(RAX, Address(RSP, + 2 * kWordSize)); // Left argument (dividend).

+ __ movq(RCX, Address(RSP, + 2 * kWordSize));

// RAX: Tagged left (dividend).

// RCX: Tagged right (divisor).

__ cmpq(RCX, Immediate(0));

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