1. 10 Jan, 2019 1 commit
  2. 01 Jul, 2016 1 commit
    • bmeurer's avatar
      [builtins] Unify most of the remaining Math builtins. · 0a0fe8fb
      bmeurer authored
      Import fdlibm versions of acos, acosh, asin and asinh, which are more
      precise and produce the same result across platforms (we were using
      libm versions for asin and acos so far, where both speed and precision
      depended on the operating system so far). Introduce appropriate TurboFan
      operators for these functions and use them both for inlining and for the
      generic builtin.
      
      Also migrate the Math.imul and Math.fround builtins to TurboFan builtins
      to ensure that their behavior is always exactly the same as the inlined
      TurboFan version (i.e. C++ truncation semantics for double to float
      don't necessarily meet the JavaScript semantics).
      
      For completeness, also migrate Math.sign, which can even get some nice
      love in TurboFan.
      
      Drive-by-fix: Some alpha-sorting on the Math related functions, and
      cleanup the list of Math intrinsics that we have to export via the
      native context currently.
      
      BUG=v8:3266,v8:3496,v8:3509,v8:3952,v8:5169,v8:5170,v8:5171,v8:5172
      TBR=rossberg@chromium.org
      R=franzih@chromium.org
      
      Review-Url: https://codereview.chromium.org/2116753002
      Cr-Commit-Position: refs/heads/master@{#37476}
      0a0fe8fb
  3. 30 Jun, 2016 1 commit
  4. 22 Jun, 2016 1 commit
  5. 21 Jun, 2016 1 commit
    • bmeurer's avatar
      [builtins] Make sure the Math functions and constants agree. · 7877ddec
      bmeurer authored
      While the EcmaScript specification doesn't define precise values for the
      Math constants or the Math functions, we should at least ensure that the
      values of the constants and the functions agree, i.e. Math.E should be
      exactly the same value as Math.exp(1).
      
      Also make sure that Math.exp(1) returns the expected value; we should
      revisit the fdlibm algorithm and figure out why it's wrong in the last
      bit.
      
      CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng;tryserver.blink:linux_blink_rel
      BUG=chromium:626111,v8:3266,v8:3468,v8:3493,v8:5086,v8:5108
      R=yangguo@chromium.org
      
      Review-Url: https://codereview.chromium.org/2079233005
      Cr-Commit-Position: refs/heads/master@{#37128}
      7877ddec
  6. 20 Jun, 2016 1 commit
    • bmeurer's avatar
      [builtins] Introduce proper Float64Tan operator. · c87168bc
      bmeurer authored
      Import base::ieee754::tan() from fdlibm and introduce Float64Tan TurboFan
      operator based on that, similar to what we do for Float64Cos and Float64Sin.
      Rewrite Math.tan() as TurboFan builtin and use those operators to also
      inline Math.tan() into optimized TurboFan functions.
      
      Drive-by-fix: Kill the %_ConstructDouble intrinsics, and provide only
      the %ConstructDouble runtime entry for writing tests.
      
      BUG=v8:5086,v8:5126
      R=yangguo@chromium.org
      
      Review-Url: https://codereview.chromium.org/2083453002
      Cr-Commit-Position: refs/heads/master@{#37087}
      c87168bc
  7. 17 Jun, 2016 4 commits
  8. 16 Jun, 2016 3 commits
  9. 13 Jun, 2016 2 commits
    • bmeurer's avatar
      [builtins] Introduce proper Float64Atan and Float64Atan2 operators. · 89d8c57b
      bmeurer authored
      Import base::ieee754::atan() and base::ieee754::atan2() from fdlibm and
      introduce Float64Atan and Float64Atan2 TurboFan operators based on those,
      similar to what we already did for Float64Log and Float64Log1p. Rewrite
      Math.atan() and Math.atan2() as TurboFan builtin and use the operators
      to also inline Math.atan() and Math.atan2() into optimized TurboFan functions.
      
      R=yangguo@chromium.org
      BUG=v8:5086,v8:5095
      
      Review-Url: https://codereview.chromium.org/2065503002
      Cr-Commit-Position: refs/heads/master@{#36916}
      89d8c57b
    • bmeurer's avatar
      [builtins] Introduce proper Float64Log1p operator. · 7ceed92a
      bmeurer authored
      Import base::ieee754::log1p() from fdlibm and introduce a Float64Log1p
      TurboFan operator based on that, similar to what we do for Float64Log.
      Rewrite Math.log1p() as TurboFan builtin and use that operator to also
      inline Math.log1p() into optimized TurboFan functions.
      
      Also unify the handling of the special IEEE 754 functions somewhat in
      the TurboFan backends. At some point we can hopefully express this
      completely in the InstructionSelector (once we have an idea what to do
      with the ST(0) return issue on IA-32/X87).
      
      Drive-by-fix: Add some more test coverage for the log function.
      
      R=yangguo@chromium.org
      BUG=v8:5086,v8:5092
      
      Review-Url: https://codereview.chromium.org/2060743002
      Cr-Commit-Position: refs/heads/master@{#36914}
      7ceed92a