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bors 07921b50ba Auto merge of #118036 - DianQK:thinlto-tests, r=tmiasko 
Add thinlto support to codegen, assembly and coverage tests

Using `--emit=llvm-ir` with thinlto usually result in multiple IR files.
Resolve test case failure issue reported in #113923.
2023-11-30 13:33:32 +00:00
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auxiliary
coverage: Regression test for #117788
2023-11-13 12:31:44 +11:00
abort.cov-map
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abort.coverage
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abort.rs
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assert.cov-map
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assert.coverage
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assert.rs
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async2.cov-map
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async2.coverage
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async2.rs
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async.cov-map
coverage: Simplify building coverage expressions based on sums
2023-11-25 12:29:20 +11:00
async.coverage
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async.rs
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bad_counter_ids.cov-map
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bad_counter_ids.coverage
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bad_counter_ids.rs
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closure_bug.cov-map
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closure_bug.coverage
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closure_bug.rs
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closure_macro_async.cov-map
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closure_macro_async.coverage
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closure_macro_async.rs
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closure_macro.cov-map
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closure_macro.coverage
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closure_macro.rs
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closure.cov-map
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closure.coverage
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closure.rs
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conditions.cov-map
coverage: Simplify building coverage expressions based on sums
2023-11-25 12:29:20 +11:00
conditions.coverage
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conditions.rs
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continue.cov-map
coverage: Simplify building coverage expressions based on sums
2023-11-25 12:29:20 +11:00
continue.coverage
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continue.rs
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coroutine.cov-map
coverage: Simplify building coverage expressions based on sums
2023-11-25 12:29:20 +11:00
coroutine.coverage
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coroutine.rs
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dead_code.cov-map
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dead_code.coverage
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dead_code.rs
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drop_trait.cov-map
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drop_trait.coverage
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drop_trait.rs
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fn_sig_into_try.cov-map
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fn_sig_into_try.coverage
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fn_sig_into_try.rs
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generics.cov-map
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generics.coverage
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generics.rs
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if_else.cov-map
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if_else.coverage
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if_else.rs
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if.cov-map
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if.coverage
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if.rs
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inline-dead.cov-map
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inline-dead.coverage
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inline-dead.rs
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inline.cov-map
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inline.coverage
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inline.rs
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inner_items.cov-map
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inner_items.coverage
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inner_items.rs
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issue-83601.cov-map
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issue-83601.coverage
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issue-83601.rs
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issue-84561.cov-map
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issue-84561.coverage
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issue-84561.rs
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issue-85461.cov-map
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issue-85461.coverage
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issue-85461.rs
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issue-93054.cov-map
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issue-93054.coverage
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issue-93054.rs
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lazy_boolean.cov-map
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lazy_boolean.coverage
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lazy_boolean.rs
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long_and_wide.cov-map
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long_and_wide.coverage
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long_and_wide.rs
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loop_break_value.cov-map
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loop_break_value.coverage
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loop_break_value.rs
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loops_branches.cov-map
coverage: Simplify building coverage expressions based on sums
2023-11-25 12:29:20 +11:00
loops_branches.coverage
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loops_branches.rs
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macro_name_span.cov-map
coverage: Regression test for #117788
2023-11-13 12:31:44 +11:00
macro_name_span.coverage
coverage: Regression test for #117788
2023-11-13 12:31:44 +11:00
macro_name_span.rs
coverage: Regression test for #117788
2023-11-13 12:31:44 +11:00
match_or_pattern.cov-map
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match_or_pattern.coverage
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match_or_pattern.rs
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nested_loops.cov-map
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nested_loops.coverage
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nested_loops.rs
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no_cov_crate.cov-map
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no_cov_crate.coverage
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no_cov_crate.rs
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overflow.cov-map
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overflow.coverage
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overflow.rs
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panic_unwind.cov-map
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panic_unwind.coverage
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panic_unwind.rs
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partial_eq.cov-map
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partial_eq.coverage
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partial_eq.rs
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README.md
coverage: Rename the run-coverage test mode to coverage-run
2023-11-08 16:41:24 +11:00
simple_loop.cov-map
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simple_loop.coverage
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simple_loop.rs
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simple_match.cov-map
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simple_match.coverage
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simple_match.rs
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sort_groups.cov-map
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sort_groups.coverage
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sort_groups.rs
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test_harness.cov-map
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test_harness.coverage
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test_harness.rs
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thin-lto.cov-map
Add thinlto support to codegen, assembly and coverage tests
2023-11-30 18:48:03 +08:00
thin-lto.coverage
Add thinlto support to codegen, assembly and coverage tests
2023-11-30 18:48:03 +08:00
thin-lto.rs
Add thinlto support to codegen, assembly and coverage tests
2023-11-30 18:48:03 +08:00
tight_inf_loop.cov-map
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tight_inf_loop.coverage
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tight_inf_loop.rs
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trivial.cov-map
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trivial.coverage
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trivial.rs
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try_error_result.cov-map
coverage: Simplify building coverage expressions based on sums
2023-11-25 12:29:20 +11:00
try_error_result.coverage
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try_error_result.rs
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unreachable.cov-map
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unreachable.coverage
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unreachable.rs
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unused_mod.cov-map
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unused_mod.coverage
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unused_mod.rs
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unused.cov-map
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unused.coverage
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unused.rs
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uses_crate.cov-map
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uses_crate.coverage
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uses_crate.rs
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uses_inline_crate.cov-map
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uses_inline_crate.coverage
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uses_inline_crate.rs
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while_early_ret.cov-map
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while_early_ret.coverage
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while_early_ret.rs
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while.cov-map
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while.coverage
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while.rs
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yield.cov-map
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yield.coverage
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yield.rs
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README.md

The tests in this directory are shared by two different test modes, and can be run in multiple different ways:

  • ./x.py test coverage-map (compiles to LLVM IR and checks coverage mappings)
  • ./x.py test coverage-run (runs a test binary and checks its coverage report)
  • ./x.py test coverage (runs both coverage-map and coverage-run)

Maintenance note

These tests can be sensitive to small changes in MIR spans or MIR control flow, especially in HIR-to-MIR lowering or MIR optimizations.

If you haven't touched the coverage code directly, and the tests still pass in coverage-run mode, then it should usually be OK to just re-bless the mappings as necessary with ./x.py test coverage-map --bless, without worrying too much about the exact changes.