Hi, I am using gcc-4.3.0. Its a cross compilation for a dummy 32bit RISC architecture. I have put movdi pattern in my md file and tried to compile this testcase. void main() { long long a; a= 45789654245; } While compiling compiler is giving this error: internal compiler error: in gen_highpart, at emit-rtl.c:1216. I saw regarding this error in previous mailing lists, It was problem with version gcc-3.0.2. After that its resolved i think. And i am using gcc-4.3.0. In movdi pattern I am splitting 64 bit no. using gen_lowpart and gen_highpart and making these divided parts in to use. Please help in this... -- View this message in context: http://old.nabble.com/internal-compiler-error%3A-in-gen_highpart%2C-at-emit-rtl.c%3A1216-tp26790425p26790425.html Sent from the gcc - Help mailing list archive at Nabble.com.