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New upstream version 1.55.0+dfsg1
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60c5eb7d 1# needs-profiler-support
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2# ignore-windows-gnu
3
4# FIXME(mati865): MinGW GCC miscompiles compiler-rt profiling library but with Clang it works
5# properly. Since we only have GCC on the CI ignore the test for now.
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6
7-include ../tools.mk
8
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9# For some very small programs GNU ld seems to not properly handle
10# instrumentation sections correctly. Neither Gold nor LLD have that problem.
11ifeq ($(UNAME),Linux)
12ifneq (,$(findstring x86,$(TARGET)))
13COMMON_FLAGS=-Clink-args=-fuse-ld=gold
14endif
15endif
16
17
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18all:
19 # We don't compile `opaque` with either optimizations or instrumentation.
dfeec247 20 $(RUSTC) $(COMMON_FLAGS) opaque.rs || exit 1
60c5eb7d 21 # Compile the test program with instrumentation
dfeec247 22 mkdir -p "$(TMPDIR)/prof_data_dir" || exit 1
60c5eb7d 23 $(RUSTC) $(COMMON_FLAGS) interesting.rs \
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24 -Cprofile-generate="$(TMPDIR)/prof_data_dir" -O -Ccodegen-units=1 || exit 1
25 $(RUSTC) $(COMMON_FLAGS) main.rs -Cprofile-generate="$(TMPDIR)/prof_data_dir" -O || exit 1
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26 # The argument below generates to the expected branch weights
27 $(call RUN,main aaaaaaaaaaaa2bbbbbbbbbbbb2bbbbbbbbbbbbbbbbcc) || exit 1
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28 "$(LLVM_BIN_DIR)/llvm-profdata" merge \
29 -o "$(TMPDIR)/prof_data_dir/merged.profdata" \
30 "$(TMPDIR)/prof_data_dir" || exit 1
60c5eb7d 31 $(RUSTC) $(COMMON_FLAGS) interesting.rs \
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32 -Cprofile-use="$(TMPDIR)/prof_data_dir/merged.profdata" -O \
33 -Ccodegen-units=1 --emit=llvm-ir || exit 1
34 cat "$(TMPDIR)/interesting.ll" | "$(LLVM_FILECHECK)" filecheck-patterns.txt