1 ;; X's live range extends beyond the shift, so the register allocator
2 ;; cannot coalesce it with Y. Because of this, a copy needs to be
3 ;; emitted before the shift to save the register value before it is
4 ;; clobbered. However, this copy is not needed if the register
5 ;; allocator turns the shift into an LEA. This also occurs for ADD.
7 ; Check that the shift gets turned into an LEA.
9 ; RUN: llc < %s -march=x86 -x86-asm-syntax=intel | \
10 ; RUN: not grep {mov E.X, E.X}
12 @G = external global i32 ; <i32*> [#uses=1]
14 define i32 @test1(i32 %X) {
15 %Z = shl i32 %X, 2 ; <i32> [#uses=1]
16 store volatile i32 %Z, i32* @G