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# needs-profiler-support
# ignore-windows-gnu
# ignore-cross-compile
# FIXME(mati865): MinGW GCC miscompiles compiler-rt profiling library but with Clang it works
# properly. Since we only have GCC on the CI ignore the test for now.
include ../tools.mk
PROFILE_DIR=$(TMPDIR)/profiles
check_hotness:
$(RUSTC) -Cprofile-generate="$(TMPDIR)"/profdata -O foo.rs -o$(TMPDIR)/foo
$(TMPDIR)/foo
"$(LLVM_BIN_DIR)"/llvm-profdata merge \
-o "$(TMPDIR)"/merged.profdata \
"$(TMPDIR)"/profdata/*.profraw
$(RUSTC) -Cprofile-use=$(TMPDIR)/merged.profdata -O foo.rs -Cremark=all -Zremark-dir=$(PROFILE_DIR)
# Check that PGO hotness is included in the remark files
cat $(PROFILE_DIR)/*.opt.yaml | $(CGREP) -e "Hotness"
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