| ;; X's live range extends beyond the shift, so the register allocator |
| ;; cannot coalesce it with Y. Because of this, a copy needs to be |
| ;; emitted before the shift to save the register value before it is |
| ;; clobbered. However, this copy is not needed if the register |
| ;; allocator turns the shift into an LEA. This also occurs for ADD. |
| |
| ; Check that the shift gets turned into an LEA. |
| |
| ; RUN: llvm-upgrade < %s | llvm-as | llc -march=x86 -x86-asm-syntax=intel | \ |
| ; RUN: not grep {mov E.X, E.X} |
| |
| %G = external global int |
| |
| int %test1(int %X) { |
| %Z = shl int %X, ubyte 2 |
| volatile store int %Z, int* %G |
| ret int %X |
| } |
