diff options
Diffstat (limited to 'tests/run-make/pgo-branch-weights/Makefile')
| -rw-r--r-- | tests/run-make/pgo-branch-weights/Makefile | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/tests/run-make/pgo-branch-weights/Makefile b/tests/run-make/pgo-branch-weights/Makefile new file mode 100644 index 000000000..c60206a1f --- /dev/null +++ b/tests/run-make/pgo-branch-weights/Makefile @@ -0,0 +1,34 @@ +# 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 + +# For some very small programs GNU ld seems to not properly handle +# instrumentation sections correctly. Neither Gold nor LLD have that problem. +ifeq ($(UNAME),Linux) +ifneq (,$(findstring x86,$(TARGET))) +COMMON_FLAGS=-Clink-args=-fuse-ld=gold +endif +endif + + +all: + # We don't compile `opaque` with either optimizations or instrumentation. + $(RUSTC) $(COMMON_FLAGS) opaque.rs || exit 1 + # Compile the test program with instrumentation + mkdir -p "$(TMPDIR)/prof_data_dir" || exit 1 + $(RUSTC) $(COMMON_FLAGS) interesting.rs \ + -Cprofile-generate="$(TMPDIR)/prof_data_dir" -O -Ccodegen-units=1 || exit 1 + $(RUSTC) $(COMMON_FLAGS) main.rs -Cprofile-generate="$(TMPDIR)/prof_data_dir" -O || exit 1 + # The argument below generates to the expected branch weights + $(call RUN,main aaaaaaaaaaaa2bbbbbbbbbbbb2bbbbbbbbbbbbbbbbcc) || exit 1 + "$(LLVM_BIN_DIR)/llvm-profdata" merge \ + -o "$(TMPDIR)/prof_data_dir/merged.profdata" \ + "$(TMPDIR)/prof_data_dir" || exit 1 + $(RUSTC) $(COMMON_FLAGS) interesting.rs \ + -Cprofile-use="$(TMPDIR)/prof_data_dir/merged.profdata" -O \ + -Ccodegen-units=1 --emit=llvm-ir || exit 1 + cat "$(TMPDIR)/interesting.ll" | "$(LLVM_FILECHECK)" filecheck-patterns.txt |