// RUN: %llvmgxx %s -emit-llvm -S -o - #pragma reverse_bitfields on typedef unsigned long UINT32; extern void abort(void); typedef struct TestStruct { long first: 15, second: 17; } TestStruct; int main (int argc, char * const argv[]) { TestStruct testStruct = {1, 0}; UINT32 dw = *(UINT32 *)(&testStruct); if(!(dw & 0xFFFF)) abort (); return 0; }