search for: ist1

...by the LLVM IR, optimization passes might unintentionally break the required alignment and lead to unexpected results when executing the generated program. Here is an example "C" code (and OpenCL as well) struct st1_t { int i; float __attribute__((align(64))) f; }; struct st1_t ist1; Generated IR by CLANG: %struct.st1_t = type { i32, [60 x i8], float, [60 x i8] } @ist1 = common global %struct.st1_t zeroinitializer, align 64 What is the reason for disallowing alignment of data members inside structs in LLVM IR? What were the design considerations? Thanks, Boaz --------------...