2019-01-11 06:43:18 -06:00
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# needs-matching-clang
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# This test makes sure that cross-language inlining actually works by checking
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# the generated machine code.
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2022-08-22 19:00:00 -05:00
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include ../tools.mk
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2019-01-11 06:43:18 -06:00
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all: cpp-executable rust-executable
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cpp-executable:
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2019-02-01 08:15:43 -06:00
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$(RUSTC) -Clinker-plugin-lto=on -o $(TMPDIR)/librustlib-xlto.a -Copt-level=2 -Ccodegen-units=1 ./rustlib.rs
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2019-04-29 07:40:07 -05:00
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$(CLANG) -flto=thin -fuse-ld=lld -L $(TMPDIR) -lrustlib-xlto -o $(TMPDIR)/cmain ./cmain.c -O3
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2019-01-11 06:43:18 -06:00
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# Make sure we don't find a call instruction to the function we expect to
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# always be inlined.
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2019-04-29 07:40:07 -05:00
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"$(LLVM_BIN_DIR)"/llvm-objdump -d $(TMPDIR)/cmain | $(CGREP) -v -e "call.*rust_always_inlined"
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2019-01-11 06:43:18 -06:00
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# As a sanity check, make sure we do find a call instruction to a
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# non-inlined function
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2019-04-29 07:40:07 -05:00
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"$(LLVM_BIN_DIR)"/llvm-objdump -d $(TMPDIR)/cmain | $(CGREP) -e "call.*rust_never_inlined"
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2019-01-11 06:43:18 -06:00
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rust-executable:
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2019-04-29 07:40:07 -05:00
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$(CLANG) ./clib.c -flto=thin -c -o $(TMPDIR)/clib.o -O2
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2019-01-11 06:43:18 -06:00
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(cd $(TMPDIR); $(AR) crus ./libxyz.a ./clib.o)
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2019-02-01 08:15:43 -06:00
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$(RUSTC) -Clinker-plugin-lto=on -L$(TMPDIR) -Copt-level=2 -Clinker=$(CLANG) -Clink-arg=-fuse-ld=lld ./main.rs -o $(TMPDIR)/rsmain
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2019-04-29 07:40:07 -05:00
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"$(LLVM_BIN_DIR)"/llvm-objdump -d $(TMPDIR)/rsmain | $(CGREP) -e "call.*c_never_inlined"
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"$(LLVM_BIN_DIR)"/llvm-objdump -d $(TMPDIR)/rsmain | $(CGREP) -v -e "call.*c_always_inlined"
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