[lldb] Skip prologue when stepping through swift_task_switch #11166
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…untime This will be useful for an upcoming commit. This is also a good candidate to be placed in a non-swift specific file, if there are uses for it upstream. This should be revisited.
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@swift-ci test |
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I think this is once again being tripped by debug info |
Plans stepping through a swift_task_switch are often the last sub-plan for a StepOver action, meaning the plan's destination is also the PC where users will take control of the program. As such, it is crucial that these plans skip over the prologue of their destination function, otherwise most variables won't be in scope. Because x86 and arm diverge on the codegen for `}` in a scope, I had to add a `print` statement in the for loop of the affected test.
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Turned out to be a x86 vs arm difference on the debug info for |
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@swift-ci test |
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@swift-ci test windows platform |
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@swift-ci test windows platform |
adrian-prantl
approved these changes
Aug 15, 2025
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The first commit just factors out a helper function to be reused by the second commit.
We should find a place for that function in an upstream file later.
Plans stepping through a swift_task_switch are often the last sub-plan
for a StepOver action, meaning the plan's destination is also the PC
where users will take control of the program. As such, it is crucial
that these plans skip over the prologue of their destination function,
otherwise most variables won't be in scope.
rdar://149391650