| Nate Begeman | d88fc03 | 2006-01-14 03:14:10 +0000 | [diff] [blame] | 1 | ; bswap should be constant folded when it is passed a constant argument |
| 2 | |
| Evan Cheng | 69c5437 | 2006-01-27 21:15:22 +0000 | [diff] [blame] | 3 | ; RUN: llvm-as < %s | llc -march=x86 | grep bswapl | wc -l | grep 3 && |
| 4 | ; RUN: llvm-as < %s | llc -march=x86 | grep rolw | wc -l | grep 1 |
| Nate Begeman | d88fc03 | 2006-01-14 03:14:10 +0000 | [diff] [blame] | 5 | |
| 6 | declare ushort %llvm.bswap.i16(ushort) |
| 7 | declare uint %llvm.bswap.i32(uint) |
| 8 | declare ulong %llvm.bswap.i64(ulong) |
| 9 | |
| 10 | ushort %W(ushort %A) { |
| 11 | %Z = call ushort %llvm.bswap.i16(ushort %A) |
| 12 | ret ushort %Z |
| 13 | } |
| 14 | |
| 15 | uint %X(uint %A) { |
| 16 | %Z = call uint %llvm.bswap.i32(uint %A) |
| 17 | ret uint %Z |
| 18 | } |
| 19 | |
| 20 | ulong %Y(ulong %A) { |
| 21 | %Z = call ulong %llvm.bswap.i64(ulong %A) |
| 22 | ret ulong %Z |
| 23 | } |