| ; All of these ands and shifts should be folded into rlw[i]nm instructions |
| ; RUN: llc < %s -march=ppc32 -o %t |
| ; RUN: not grep and %t |
| ; RUN: not grep srawi %t |
| ; RUN: not grep srwi %t |
| ; RUN: not grep slwi %t |
| ; RUN: grep rlwnm %t | count 1 |
| ; RUN: grep rlwinm %t | count 1 |
| |
| define i32 @test1(i32 %X, i32 %Y) { |
| entry: |
| %tmp = trunc i32 %Y to i8 ; <i8> [#uses=2] |
| %tmp1 = shl i32 %X, %Y ; <i32> [#uses=1] |
| %tmp2 = sub i32 32, %Y ; <i8> [#uses=1] |
| %tmp3 = lshr i32 %X, %tmp2 ; <i32> [#uses=1] |
| %tmp4 = or i32 %tmp1, %tmp3 ; <i32> [#uses=1] |
| %tmp6 = and i32 %tmp4, 127 ; <i32> [#uses=1] |
| ret i32 %tmp6 |
| } |
| |
| define i32 @test2(i32 %X) { |
| entry: |
| %tmp1 = lshr i32 %X, 27 ; <i32> [#uses=1] |
| %tmp2 = shl i32 %X, 5 ; <i32> [#uses=1] |
| %tmp2.masked = and i32 %tmp2, 96 ; <i32> [#uses=1] |
| %tmp5 = or i32 %tmp1, %tmp2.masked ; <i32> [#uses=1] |
| ret i32 %tmp5 |
| } |