In general, objects generated by different major versions of the Intel compiler are compatible with each other, with three main exceptions:
"ipo: error #11034: il version for a-14.o (265739) does not match compiler's il version (258839), please regenerate”
(with 14.0) icpc -ipo -c -o a-14.o a.cpp (with 15.0) icpc -ipo -c -o b-15.o b.cpp (with 15.0) icpc –ipo a-14.o b-15.o
(with 14.0) icpc -c -o a-14.o a.cpp (with 15.0) icpc -c -o b-15.o b.cpp (with 14.0) icpc a-14.o b-15.o <--- May fail with unresolved symbol error (with 15.0) icpc a-14.o b-15.o <--- Succeeds
Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.
Notice revision #20110804