Skip to content

[release/10.0] JIT: Use r9,r10 for GS cookie check in Swift reverse pinvokes #120744

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 1 commit into
base: release/10.0
Choose a base branch
from
+7 −0
Open

[release/10.0] JIT: Use r9,r10 for GS cookie check in Swift reverse pinvokes #120744

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
7 changes: 7 additions & 0 deletions src/coreclr/jit/codegenxarch.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -115,6 +115,13 @@ void CodeGen::genEmitGSCookieCheck(bool pushReg)
// these cannot be a part of any kind of return
regGSCheck = REG_R8;
regNumber regGSCheckAlternative = REG_R9;

// except for swift, where R8 can be used for returns
if (compiler->info.compCallConv == CorInfoCallConvExtension::Swift)
{
regGSCheck = REG_R9;
regGSCheckAlternative = REG_R10;
}
#endif

if (compiler->lvaKeepAliveAndReportThis() && compiler->lvaGetDesc(compiler->info.compThisArg)->lvIsInReg() &&
Expand Down
Loading