On Wed, 16 Sep 2026 22:30:23 GMT, Srinivas Vamsi Parasa <[email protected]> wrote:
> The goal of this PR is to update the x86-64 APX calling convention on > Windows. According to the latest [Windows x64 calling > convention](https://learn.microsoft.com/en-us/cpp/build/x64-calling-convention?view=msvc-170), > R30 and R31 are nonvolatile on Win64 on x86_64. > > R30 and R31 should have the SOE (Save-On-Entry) C convention save type > instead of the SOC (Save-On-Call) C convention save type on Win64 in > hotspot/cpu/x86/x86.ad. > > > > --------- > - [x] I confirm that I make this contribution in accordance with the [OpenJDK > Interim AI Policy](https://openjdk.org/legal/ai). This pull request has now been integrated. Changeset: b41070a0 Author: Srinivas Vamsi Parasa <[email protected]> URL: https://git.openjdk.org/jdk/commit/b41070a002908a947e80670850e90ffa08ae0355 Stats: 67 lines in 8 files changed: 58 ins; 0 del; 9 mod 8392046: R30 and R31 should not be SOC on Windows Reviewed-by: missa, jbhateja, sviswanathan ------------- PR: https://git.openjdk.org/jdk/pull/32912
