src/x64/code-stubs-x64.cc - Issue 11418149: Faster implementation of Math.exp()

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Unified Diff: src/x64/code-stubs-x64.cc

Issue 11418149: Faster implementation of Math.exp() (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge

Patch Set: fix Win build Created 8 years, 1 month ago

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Index: src/x64/code-stubs-x64.cc

diff --git a/src/x64/code-stubs-x64.cc b/src/x64/code-stubs-x64.cc

index c529eb4da55e75f45977748a2f338d3efabc0287..970571840b5cd49a3ec99859a62cfb860c5616aa 100644

--- a/src/x64/code-stubs-x64.cc

+++ b/src/x64/code-stubs-x64.cc

@@ -2221,7 +2221,7 @@ void MathPowStub::Generate(MacroAssembler* masm) {

// F2XM1 calculates 2^st(0) - 1 for -1 < st(0) < 1

__ f2xm1(); // 2^(X-rnd(X)) - 1, rnd(X)

__ fld1(); // 1, 2^(X-rnd(X)) - 1, rnd(X)

- __ faddp(1); // 1, 2^(X-rnd(X)), rnd(X)

+ __ faddp(1); // 2^(X-rnd(X)), rnd(X)

// FSCALE calculates st(0) * 2^st(1)

__ fscale(); // 2^X, rnd(X)

__ fstp(1);

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