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bjaideep authored
Port f2da19fe Original commit message: Introduce a dedicated Float64Log machine operator, that is either implemented by a direct C call or by platform specific code, i.e. using the FPU on x64 and ia32. This operator is used to implement Math.log as a proper TurboFan builtin on top of the CodeStubAssembler. Also introduce a NumberLog simplified operator on top of Float64Log and use that for the fast inline path of Math.log inside TurboFan optimized code. R=bmeurer@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com, mbrandy@us.ibm.com BUG=v8:5065 LOG=N Review-Url: https://codereview.chromium.org/2036273002 Cr-Commit-Position: refs/heads/master@{#36720}
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