)]}'
{
  "commit": "7753f63893e2b5e63ce1d9b5d15286dee31d230f",
  "tree": "49f74ef7a8e9822d60436154e07107606393cbf4",
  "parents": [
    "91e22a9fe425af2317e469a7b5d1d28b1a10febe"
  ],
  "author": {
    "name": "Sunny Sachanandani",
    "email": "sunnyps@chromium.org",
    "time": "Wed Jun 19 07:22:03 2024 +0000"
  },
  "committer": {
    "name": "Dawn LUCI CQ",
    "email": "dawn-scoped@luci-project-accounts.iam.gserviceaccount.com",
    "time": "Wed Jun 19 07:22:03 2024 +0000"
  },
  "message": "metal: Emit MSL powr for WGSL pow builtin\n\nMSL pow() is different from WGSL/GLSL pow() in that it allows negative\nbase values and is presumably more expensive as a result. MSL `powr` is\ncloser to the WGSL/GLSL definition of `pow`. In WGSL spec, `pow` is\ndefined as `Inherited from exp2(y * log2(x))` and `log2(e)` is not\n\"mathematically meaningful\" for `e \u003c 0`. Further, this expectation of\ndisallowing `x \u003c 0` via validation is in WebGPU CTS already in\n`webgpu/shader/validation/expression/call/builtin/pow`\n\nBug: 347282475\nChange-Id: I589255b3211db0e64cc333ca9f13639112d10847\nReviewed-on: https://dawn-review.googlesource.com/c/dawn/+/194200\nReviewed-by: dan sinclair \u003cdsinclair@chromium.org\u003e\nAuto-Submit: Sunny Sachanandani \u003csunnyps@chromium.org\u003e\nCommit-Queue: Sunny Sachanandani \u003csunnyps@chromium.org\u003e\n",
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