Integrated: 8350284: WebKit 620.1 crashes on startup on Windows x86 32-bit

[Roman Marchenko]

On Tue, 8 Apr 2025 07:48:19 GMT, Roman Marchenko <rmarchenko at openjdk.org> wrote:

> 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`)

This pull request has now been integrated.

Changeset: d31f764b
Author:    Roman Marchenko <rmarchenko at openjdk.org>
Committer: Kevin Rushforth <kcr at openjdk.org>
URL:       https://git.openjdk.org/jfx/commit/d31f764b565cafdb6cafe88a9676ffba8cb7cdbb
Stats:     4 lines in 1 file changed: 4 ins; 0 del; 0 mod

8350284: WebKit 620.1 crashes on startup on Windows x86 32-bit

Reviewed-by: kcr, jbhaskar

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