| # needs-profiler-support |
| |
| # ISSUE(76038): When targeting MSVC, Rust binaries built with both `-Z instrument-coverage` and |
| # `-C link-dead-code` typically crash (with a seg-fault) or at best generate an empty `*.profraw`. |
| # See ../coverage/coverage_tools.mk for more information. |
| |
| -include ../coverage/coverage_tools.mk |
| |
| SOURCEDIR=../coverage |
| |
| all: $(patsubst $(SOURCEDIR)/%.rs,%,$(wildcard $(SOURCEDIR)/*.rs)) |
| |
| # Ensure there are no `expected` results for tests that may have been removed or renamed |
| .PHONY: clear_expected_if_blessed |
| clear_expected_if_blessed: |
| ifdef RUSTC_BLESS_TEST |
| rm -rf expected_mir_dump.*/ |
| endif |
| |
| -include clear_expected_if_blessed |
| |
| %: $(SOURCEDIR)/%.rs |
| # Compile the test program with coverage instrumentation and generate relevant MIR. |
| $(RUSTC) $(SOURCEDIR)/$@.rs \ |
| -Zinstrument-coverage \ |
| -Clink-dead-code=$(LINK_DEAD_CODE) \ |
| -Zdump-mir=InstrumentCoverage \ |
| -Zdump-mir-dir="$(TMPDIR)"/mir_dump.$@ |
| |
| ifdef RUSTC_BLESS_TEST |
| mkdir -p expected_mir_dump.$@ |
| cp "$(TMPDIR)"/mir_dump.$@/*InstrumentCoverage.0.html expected_mir_dump.$@/ |
| else |
| # Check that the selected `mir_dump` files match what we expect (`--bless` refreshes `expected`) |
| mkdir -p "$(TMPDIR)"/actual_mir_dump.$@ |
| rm -f "$(TMPDIR)"/actual_mir_dump.$@/* |
| cp "$(TMPDIR)"/mir_dump.$@/*InstrumentCoverage.0.html "$(TMPDIR)"/actual_mir_dump.$@/ |
| $(DIFF) -r expected_mir_dump.$@/ "$(TMPDIR)"/actual_mir_dump.$@/ |
| endif |
