| Evan Cheng | 2a5422b | 2012-06-21 22:52:49 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -instcombine -S | FileCheck %s |
| 2 | |
| 3 | define i32 @t1(i16 zeroext %x, i32 %y) nounwind { |
| 4 | entry: |
| 5 | ; CHECK: t1 |
| 6 | ; CHECK-NOT: sdiv |
| 7 | ; CHECK: lshr i32 %conv |
| 8 | %conv = zext i16 %x to i32 |
| 9 | %s = shl i32 2, %y |
| 10 | %d = sdiv i32 %conv, %s |
| 11 | ret i32 %d |
| 12 | } |
| 13 | |
| 14 | ; rdar://11721329 |
| 15 | define i64 @t2(i64 %x, i32 %y) nounwind { |
| 16 | ; CHECK: t2 |
| 17 | ; CHECK-NOT: udiv |
| 18 | ; CHECK: lshr i64 %x |
| 19 | %1 = shl i32 1, %y |
| 20 | %2 = zext i32 %1 to i64 |
| 21 | %3 = udiv i64 %x, %2 |
| 22 | ret i64 %3 |
| 23 | } |