RFR: 8350284: WebKit 620.1 crashes on startup on Windows x86 32-bit [v2]

[Roman Marchenko]

> All the crashes are on "`movaps`" instructions, like "`movaps xmmword ptr [esi+0x30], xmm0`".
> 
> "`movaps`" must operate with aligned addresses as 
>> When the source or destination operand is a memory operand, the operand must be aligned on a 16-byte boundary or a general-protection exception (#GP) is generated
> 
> written in docs. When crashes, ESI contains value like `0x27DB63A8`, so it doesn’t seem aligned to 16-byte boundary. The line "`siginfo: ExceptionCode=0xc0000005, reading address 0xffffffff`" from `hs_err` file implicitly says it is GP, not a real "reading address 0xffffffff".
> 
> It might be related to clang-cl bug, see https://github.com/llvm/llvm-project/issues/55844
> 
> The workaround is to disable SSE when building 32bit on Windows. (`-mno-sse`)

Roman Marchenko has updated the pull request incrementally with one additional commit since the last revision:

  Update WebKitCompilerFlags.cmake

-------------

Changes:
  - all: https://git.openjdk.org/jfx/pull/1764/files
  - new: https://git.openjdk.org/jfx/pull/1764/files/14695e6c..f57dad8e

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jfx&pr=1764&range=01
 - incr: https://webrevs.openjdk.org/?repo=jfx&pr=1764&range=00-01

  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jfx/pull/1764.diff
  Fetch: git fetch https://git.openjdk.org/jfx.git pull/1764/head:pull/1764

PR: https://git.openjdk.org/jfx/pull/1764