7904167: Enable -03 optimization in NativeCompilation.gmk

[varada1110]

Enable -03 in make/NativeCompilation.gmk to align with Gradle CMake Release optimization.

JBS : CODETOOLS-7904167

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Progress

• Change must not contain extraneous whitespace
• Change must be properly reviewed (no review required)

Error

 ⚠️ Pull request body is missing required line: - [x] I confirm that I make this contribution in accordance with the [OpenJDK Interim AI Policy](https://openjdk.org/legal/ai).

Issue

• CODETOOLS-7904167: Enable -03 optimization in NativeCompilation.gmk (Bug - P4)

Reviewers

• Nizar Benalla (@nizarbenalla - Author)

Reviewing

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$ git checkout pull/302

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$ git pull https://git.openjdk.org/jextract.git pull/302/head

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[bridgekeeper]

👋 Welcome back varadam! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[openjdk]

@varada1110 This change is no longer ready for integration - check the PR body for details.

[mlbridge]

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• 00: Full (cc715e66)

[varada1110]

Hi @JornVernee , could I please get a review on this.

[varada1110]

Hi @JornVernee , @mcimadamore
could I please get a review for this PR

[nizarbenalla]

Looks good to me, the change is straightforward.
But let's wait for Jorn to have a good.

[JornVernee]

Hey, I was on vacation the last couple of weeks, and didn't have time to look at this before that.

There's a couple things I'd like to understand:

• Are you using the Makefile build? I'm assuming the answer is "yes", but the makefile build was only intended for Oracle internal CI use.
• We only use the native compiler to build test libraries. Why is it important to keep the optimization level in sync between the two builds for tests libraries?