Changes from Git (git http://labmaster3.local/git/llvm-project.git)
[X86] Don't call LowerUINT_TO_FP_i32 for i32->f80 on 32-bit targets with (details)
[X86] Don't call LowerUINT_TO_FP_i32 for i32->f80 on 32-bit targets with sse2. We were performing an emulated i32->f64 in the SSE registers, then storing that value to memory and doing a extload into the X87 domain. After this patch we'll now just store the i32 to memory along with an i32 0. Then do a 64-bit FILD to f80 completely in the X87 unit. This matches what we do without SSE.