| Nate Begeman | 2bbcca3 | 2005-08-03 18:11:23 +0000 | [diff] [blame] | 1 | ; All of these ands and shifts should be folded into rlwimi's |
| John Criswell | d41abfa | 2005-10-17 21:54:18 +0000 | [diff] [blame] | 2 | ; RUN: llvm-as < %s | llc -march=ppc32 | grep rlwimi | wc -l | grep 3 && |
| 3 | ; RUN: llvm-as < %s | llc -march=ppc32 | grep srwi | wc -l | grep 1 && |
| 4 | ; RUN: llvm-as < %s | llc -march=ppc32 | not grep slwi |
| Nate Begeman | 2bbcca3 | 2005-08-03 18:11:23 +0000 | [diff] [blame] | 5 | |
| 6 | implementation ; Functions: |
| 7 | |
| 8 | ushort %test1(uint %srcA, uint %srcB, uint %alpha) { |
| 9 | entry: |
| 10 | %tmp.1 = shl uint %srcA, ubyte 15 ; <uint> [#uses=1] |
| 11 | %tmp.4 = and uint %tmp.1, 32505856 ; <uint> [#uses=1] |
| 12 | %tmp.6 = and uint %srcA, 31775 ; <uint> [#uses=1] |
| 13 | %tmp.7 = or uint %tmp.4, %tmp.6 ; <uint> [#uses=1] |
| 14 | %tmp.9 = shl uint %srcB, ubyte 15 ; <uint> [#uses=1] |
| 15 | %tmp.12 = and uint %tmp.9, 32505856 ; <uint> [#uses=1] |
| 16 | %tmp.14 = and uint %srcB, 31775 ; <uint> [#uses=1] |
| 17 | %tmp.15 = or uint %tmp.12, %tmp.14 ; <uint> [#uses=1] |
| 18 | %tmp.18 = mul uint %tmp.7, %alpha ; <uint> [#uses=1] |
| 19 | %tmp.20 = sub uint 32, %alpha ; <uint> [#uses=1] |
| 20 | %tmp.22 = mul uint %tmp.15, %tmp.20 ; <uint> [#uses=1] |
| 21 | %tmp.23 = add uint %tmp.22, %tmp.18 ; <uint> [#uses=2] |
| 22 | %tmp.27 = shr uint %tmp.23, ubyte 5 ; <uint> [#uses=1] |
| 23 | %tmp.28 = cast uint %tmp.27 to ushort ; <ushort> [#uses=1] |
| 24 | %tmp.29 = and ushort %tmp.28, 31775 ; <ushort> [#uses=1] |
| 25 | %tmp.33 = shr uint %tmp.23, ubyte 20 ; <uint> [#uses=1] |
| 26 | %tmp.34 = cast uint %tmp.33 to ushort ; <ushort> [#uses=1] |
| 27 | %tmp.35 = and ushort %tmp.34, 992 ; <ushort> [#uses=1] |
| 28 | %tmp.36 = or ushort %tmp.29, %tmp.35 ; <ushort> [#uses=1] |
| 29 | ret ushort %tmp.36 |
| 30 | } |