Lucile Rose Nihlen bc1ae703c3 return 0 from Run when it doesn't specify a return value (#7180) ...

https://carbon.compiler-explorer.com/z/88K9Kh5Wo shows the program
exiting with a garbage value copied from uninitialized memory.

This PR modifies `lower` to detect if the function lowered is the
entry point and doesn't specify a return type. If so, it emits
different LLVM IR to return int32 0, and modifies the lowered
function signature to match the int32 return type.

2026-05-08 19:00:47 +00:00

..

code_after_return.carbon

Start plumbing through debug info type information with function parameters/return value (#6410)

2025-11-25 23:25:09 +00:00

function_ids_in_different_files.carbon

return 0 from Run when it doesn't specify a return value (#7180)

2026-05-08 19:00:47 +00:00

no_return_from_run.carbon

return 0 from Run when it doesn't specify a return value (#7180)

2026-05-08 19:00:47 +00:00

no_value.carbon

Start plumbing through debug info type information with function parameters/return value (#6410)

2025-11-25 23:25:09 +00:00

return_var_byval.carbon

Improve CanDestroyType to handle remaining cases (#6943)

2026-04-02 22:54:58 +00:00

return_var.carbon

Fix pointer sizes in debug info. (#7002)

2026-04-01 16:35:12 +00:00

value.carbon

Start plumbing through debug info type information with function parameters/return value (#6410)

2025-11-25 23:25:09 +00:00

var.carbon

Improve CanDestroyType to handle remaining cases (#6943)

2026-04-02 22:54:58 +00:00