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  1. 11 Dec, 2015 1 commit
  3. 10 Dec, 2015 1 commit
    • jarin's avatar
      [turbofan] Make MachineType a pair of enums. · bb2a830d
      jarin authored 
      MachineType is now a class with two enum fields:
- MachineRepresentation
- MachineSemantic

Both enums are usable on their own, and this change switches some places from using MachineType to use just MachineRepresentation. Most notably:
- register allocator now uses just the representation.
- Phi and Select nodes only refer to representations.

Review URL: https://codereview.chromium.org/1513543003

Cr-Commit-Position: refs/heads/master@{#32738}
      bb2a830d
  5. 30 Nov, 2015 1 commit
  7. 07 Nov, 2015 1 commit
  9. 29 Oct, 2015 1 commit
  11. 28 Oct, 2015 1 commit
  13. 26 Oct, 2015 1 commit
    • rmcilroy's avatar
      [Interpreter] Add support for loading from / storing to outer context variables. · c0c214da
      rmcilroy authored 
      Adds support for loading from and storing to outer context
variables. Also adds support for declaring functions on contexts and
locals. Finally, fixes a couple of issues with StaContextSlot where
we weren't emitting the write barrier and therefore would crash in the
GC.

Also added code so that --print-bytecode will output the
function name before the bytecodes, and replaces MachineType with StoreRepresentation in RawMachineAssembler::Store and updates tests.

BUG=v8:4280
LOG=N

Review URL: https://codereview.chromium.org/1425633002

Cr-Commit-Position: refs/heads/master@{#31584}
      c0c214da
  15. 14 Oct, 2015 1 commit
  17. 24 Sep, 2015 1 commit
  19. 23 Sep, 2015 1 commit
    • pierre.langlois's avatar
      [arm64] Optimize fcmp when lhs operand is #0.0 · e28ae8ca
      pierre.langlois authored 
      This patch checks the type of the lhs operand of a floating point
comparison, and commutes the operands if it is #0.0.  It allows us to
optimize a comparison with zero, as the fcmp instruction accepts #0.0 as
rhs operand.

Code before for "0.0 < 0.123":
------------------------------
fmov d1, xzr
ldr d0, pc+96
fcmp d1, d0
b.lo #+0xc

Code after:
-----------
ldr d0, pc+92
fcmp d0, #0.0
b.gt #+0xc

Before this patch, we used unsigned condition codes for floating point
comparisons, but the unordered case was not correctly commuted.

Review URL: https://codereview.chromium.org/1356283003

Cr-Commit-Position: refs/heads/master@{#30881}
      e28ae8ca
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