On Wed, 6 Dec 2023 14:20:14 GMT, Claes Redestad wrote:
> https://bugs.openjdk.org/browse/JDK-8215017 removed the only use of
> `StringUTF16::equals`. At the time I did some performance verification
> focused on x86 showing that simplifying and only using `StringLatin1::equals`
> was either neu
On Wed, 6 Dec 2023 14:20:14 GMT, Claes Redestad wrote:
> https://bugs.openjdk.org/browse/JDK-8215017 removed the only use of
> `StringUTF16::equals`. At the time I did some performance verification
> focused on x86 showing that simplifying and only using `StringLatin1::equals`
> was either neu
On Wed, 6 Dec 2023 14:20:14 GMT, Claes Redestad wrote:
> https://bugs.openjdk.org/browse/JDK-8215017 removed the only use of
> `StringUTF16::equals`. At the time I did some performance verification
> focused on x86 showing that simplifying and only using `StringLatin1::equals`
> was either neu
On Wed, 6 Dec 2023 14:20:14 GMT, Claes Redestad wrote:
> https://bugs.openjdk.org/browse/JDK-8215017 removed the only use of
> `StringUTF16::equals`. At the time I did some performance verification
> focused on x86 showing that simplifying and only using `StringLatin1::equals`
> was either neu
On Fri, 2 Feb 2024 18:45:22 GMT, Vladimir Kozlov wrote:
> I don't see x86 changes. Why?
The 2-byte variants for `string_equals`, if they ever existed, seems to be gone:
// fast string equals
instruct string_equals(rdi_RegP str1, rsi_RegP str2, rcx_RegI cnt, rax_RegI
result,
On Wed, 6 Dec 2023 14:20:14 GMT, Claes Redestad wrote:
> https://bugs.openjdk.org/browse/JDK-8215017 removed the only use of
> `StringUTF16::equals`. At the time I did some performance verification
> focused on x86 showing that simplifying and only using `StringLatin1::equals`
> was either neu
On Fri, 2 Feb 2024 14:53:51 GMT, Roger Riggs wrote:
> LGTM for the core-libs point of view. (And what I understand of the assembler)
Thanks!
I'll try to get someone from the compiler team to look over the assembler
change. @TobiHartmann, can you help get some eyes on this?
-
PR C
On Wed, 6 Dec 2023 14:20:14 GMT, Claes Redestad wrote:
> https://bugs.openjdk.org/browse/JDK-8215017 removed the only use of
> `StringUTF16::equals`. At the time I did some performance verification
> focused on x86 showing that simplifying and only using `StringLatin1::equals`
> was either neu
On Wed, 6 Dec 2023 14:20:14 GMT, Claes Redestad wrote:
> https://bugs.openjdk.org/browse/JDK-8215017 removed the only use of
> `StringUTF16::equals`. At the time I did some performance verification
> focused on x86 showing that simplifying and only using `StringLatin1::equals`
> was either neu
On Wed, 6 Dec 2023 14:20:14 GMT, Claes Redestad wrote:
> https://bugs.openjdk.org/browse/JDK-8215017 removed the only use of
> `StringUTF16::equals`. At the time I did some performance verification
> focused on x86 showing that simplifying and only using `StringLatin1::equals`
> was either neu
https://bugs.openjdk.org/browse/JDK-8215017 removed the only use of
`StringUTF16::equals`. At the time I did some performance verification focused
on x86 showing that simplifying and only using `StringLatin1::equals` was
either neutral or a win.
I repeated this experiment recently, adding some
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