[webkit-changes] [WebKit/WebKit] 643ffd: [JSC] Fix VectorAbs for I64x2

[Yusuke Suzuki]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 643ffd610e8b20bb11e7cca20b56462c4283fd7b
      https://github.com/WebKit/WebKit/commit/643ffd610e8b20bb11e7cca20b56462c4283fd7b
  Author: Yusuke Suzuki <ysuzuki at apple.com>
  Date:   2022-12-14 (Wed, 14 Dec 2022)

  Changed paths:
    M Source/JavaScriptCore/assembler/MacroAssemblerX86_64.h
    M Source/JavaScriptCore/b3/air/AirOpcode.opcodes
    M Source/JavaScriptCore/wasm/WasmAirIRGenerator64.cpp

  Log Message:
  -----------
  [JSC] Fix VectorAbs for I64x2
https://bugs.webkit.org/show_bug.cgi?id=249358
rdar://103380107

Reviewed by Justin Michaud.

VectorAbs for I64x2 in x64 requires a scratch register,
since input and dest can be the same. This patch fixes it.
Also we clean up the adhoc lowering part in Wasm::AirIRGenerator64.

* Source/JavaScriptCore/assembler/MacroAssemblerX86_64.h:
(JSC::MacroAssemblerX86_64::vectorAbsInt64):
(JSC::MacroAssemblerX86_64::vectorAbs):
* Source/JavaScriptCore/b3/air/AirOpcode.opcodes:
* Source/JavaScriptCore/wasm/WasmAirIRGenerator64.cpp:
(JSC::Wasm::AirIRGenerator64::addSIMDV_V):

Canonical link: https://commits.webkit.org/257901@main