)]}'
{
  "commit": "3a84c8e25251b961bf91f713b5175f834aaa7bef",
  "tree": "fcd862c37affd38c8490cb9acdb1dff8c2fb3dfc",
  "parents": [
    "5059719664731ff36ca52cc20fa805c44e9ebdd6"
  ],
  "author": {
    "name": "Nicolas Capens",
    "email": "capn@google.com",
    "time": "Tue Jul 13 15:56:24 2021 -0400"
  },
  "committer": {
    "name": "Nicolas Capens",
    "email": "nicolascapens@google.com",
    "time": "Mon Jul 19 20:29:12 2021 +0000"
  },
  "message": "Fix RequiredStackAlignment initialization\n\nsizeof(Traits::WordType) evaluates to obtaining the size of the numeric\nvalue of the IceType_i32 or IceType_i64 enum. Because enums default to\nbeing constants with an underlying type of \u0027int\u0027, this becomes 4 for\nboth the x86-32 and x86-64 backends, while 8 was intended for the\nlatter.\n\nA misaligned stack may have a significant performance impact.\n\nNote that an even greater stack alignment might be required, as both the\nMicrosoft and System V x64 ABI require 16-byte alignment. This change\nonly addresses the obvious semantics bug.\n\nBug: b/193550986\nChange-Id: If33c0a10d73c50bfb1bbc25f16acb97b3575e27a\nReviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/55809\nPresubmit-Ready: Nicolas Capens \u003cnicolascapens@google.com\u003e\nKokoro-Result: kokoro \u003cnoreply+kokoro@google.com\u003e\nTested-by: Nicolas Capens \u003cnicolascapens@google.com\u003e\nReviewed-by: Sean Risser \u003csrisser@google.com\u003e\nReviewed-by: Nicolas Capens \u003cnicolascapens@google.com\u003e\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "a012d17390caeac5e6df02af2860925b73e230f2",
      "old_mode": 33188,
      "old_path": "third_party/subzero/src/IceTargetLoweringX8632.h",
      "new_id": "8272ebe009850e919f98edf9d754d68d86503354",
      "new_mode": 33188,
      "new_path": "third_party/subzero/src/IceTargetLoweringX8632.h"
    },
    {
      "type": "modify",
      "old_id": "738ddae2bb8b60288d26aa21e65c84dd7c32b0e9",
      "old_mode": 33188,
      "old_path": "third_party/subzero/src/IceTargetLoweringX8664.h",
      "new_id": "78074d290703988b4104e6544185ec5f65e82d90",
      "new_mode": 33188,
      "new_path": "third_party/subzero/src/IceTargetLoweringX8664.h"
    }
  ]
}