[LLVMdev] llvm-mc problem after a pass

Rinaldini Julien julien.rinaldini at heig-vd.ch
Wed Jun 13 05:51:27 PDT 2012


Hi,

I'm having some problem with llvm-mc on a program after applying a pass:

../../../build/Release+Asserts/bin/clang -emit-llvm  -c -I./testprof/ -I./src/headers/ -I../libtommath-0.42.0/ -Wall -Wsign-compare -W -Wshadow -Wno-unused-parameter -DLTC_SOURCE -O0 -DLTC_NO_ASM -DUSE_LTM -DLTM_DESC -o src/pk/asn1/der/sequence/der_encode_sequence_ex.bc src/pk/asn1/der/sequence/der_encode_sequence_ex.c
../../../build/Release+Asserts/bin/opt -reg2mem -load ../../../build/Release+Asserts/lib/LLVMobfuscation.so -flattening src/pk/asn1/der/sequence/der_encode_sequence_ex.bc -o src/pk/asn1/der/sequence/der_encode_sequence_ex.bc -stats
===-------------------------------------------------------------------------===
                          ... Statistics Collected ...
===-------------------------------------------------------------------------===

9 break-crit-edges - Number of blocks inserted
1 flattening       - Functions flattened

../../../build/Release+Asserts/bin/llc src/pk/asn1/der/sequence/der_encode_sequence_ex.bc -o src/pk/asn1/der/sequence/der_encode_sequence_ex.s
../../../build/Release+Asserts/bin/llvm-mc -filetype=obj src/pk/asn1/der/sequence/der_encode_sequence_ex.s -o src/pk/asn1/der/sequence/der_encode_sequence_ex.o
src/pk/asn1/der/sequence/der_encode_sequence_ex.s:989:3: error: unexpected token at start of statement
18
  ^
make: *** [src/pk/asn1/der/sequence/der_encode_sequence_ex.o] Error 1
../../../build/Release+Asserts/bin/clang -emit-llvm  -c -I./testprof/ -I./src/headers/ -I../libtommath-0.42.0/ -Wall -Wsign-compare -W -Wshadow -Wno-unused-parameter -DLTC_SOURCE -O0 -DLTC_NO_ASM -DUSE_LTM -DLTM_DESC -o src/pk/asn1/der/sequence/der_encode_sequence_ex.bc src/pk/asn1/der/sequence/der_encode_sequence_ex.c
../../../build/Release+Asserts/bin/opt -reg2mem -load ../../../build/Release+Asserts/lib/LLVMobfuscation.so -flattening src/pk/asn1/der/sequence/der_encode_sequence_ex.bc -o src/pk/asn1/der/sequence/der_encode_sequence_ex.bc -stats
===-------------------------------------------------------------------------===
                          ... Statistics Collected ...
===-------------------------------------------------------------------------===

9 break-crit-edges - Number of blocks inserted
1 flattening       - Functions flattened

../../../build/Release+Asserts/bin/llc src/pk/asn1/der/sequence/der_encode_sequence_ex.bc -o src/pk/asn1/der/sequence/der_encode_sequence_ex.s
../../../build/Release+Asserts/bin/llvm-mc -filetype=obj src/pk/asn1/der/sequence/der_encode_sequence_ex.s -o src/pk/asn1/der/sequence/der_encode_sequence_ex.o
src/pk/asn1/der/sequence/der_encode_sequence_ex.s:989:3: error: unexpected token at start of statement
18
  ^
make: *** [src/pk/asn1/der/sequence/der_encode_sequence_ex.o] Error 1


It is possible that the PassVerifier validate my pass but it fail in llvm-mc? (and why it try to compile 2 times the same file?)
Any idea?


Thx,
Cheers

ps: I've attached the assembly source file and the bc file 
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