diff options
Diffstat (limited to 'src/test/run-make-fulldeps/pgo-use/Makefile')
| -rw-r--r-- | src/test/run-make-fulldeps/pgo-use/Makefile | 46 |
1 files changed, 0 insertions, 46 deletions
diff --git a/src/test/run-make-fulldeps/pgo-use/Makefile b/src/test/run-make-fulldeps/pgo-use/Makefile deleted file mode 100644 index 3bac9b77a..000000000 --- a/src/test/run-make-fulldeps/pgo-use/Makefile +++ /dev/null @@ -1,46 +0,0 @@ -# needs-profiler-support -# ignore-windows-gnu - -# 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 - -# This test makes sure that PGO profiling data leads to cold functions being -# marked as `cold` and hot functions with `inlinehint`. -# The test program contains an `if` were actual execution only ever takes the -# `else` branch. Accordingly, we expect the function that is never called to -# be marked as cold. -# -# Disable the pre-inlining pass (i.e. a pass that does some inlining before -# it adds the profiling instrumentation). Disabling this pass leads to -# rather predictable IR which we need for this test to be stable. - -COMMON_FLAGS=-Copt-level=2 -Ccodegen-units=1 -Cllvm-args=-disable-preinline - -ifeq ($(UNAME),Darwin) -# macOS does not have the `tac` command, but `tail -r` does the same thing -TAC := tail -r -else -# some other platforms don't support the `-r` flag for `tail`, so use `tac` -TAC := tac -endif - -all: - # Compile the test program with instrumentation - $(RUSTC) $(COMMON_FLAGS) -Cprofile-generate="$(TMPDIR)" main.rs - # Run it in order to generate some profiling data - $(call RUN,main some-argument) || exit 1 - # Postprocess the profiling data so it can be used by the compiler - "$(LLVM_BIN_DIR)"/llvm-profdata merge \ - -o "$(TMPDIR)"/merged.profdata \ - "$(TMPDIR)"/default_*.profraw - # Compile the test program again, making use of the profiling data - $(RUSTC) $(COMMON_FLAGS) -Cprofile-use="$(TMPDIR)"/merged.profdata --emit=llvm-ir main.rs - # Check that the generate IR contains some things that we expect - # - # We feed the file into LLVM FileCheck tool *in reverse* so that we see the - # line with the function name before the line with the function attributes. - # FileCheck only supports checking that something matches on the next line, - # but not if something matches on the previous line. - $(TAC) "$(TMPDIR)"/main.ll | "$(LLVM_FILECHECK)" filecheck-patterns.txt |