| ; RUN: opt -analyze -enable-new-pm=0 -scalar-evolution < %s | FileCheck %s |
| ; RUN: opt -disable-output "-passes=print<scalar-evolution>" < %s 2>&1 | FileCheck %s |
| |
| ; ScalarEvolution shouldn't attempt to interpret expressions which have |
| ; undefined results. |
| |
| define void @foo(i64 %x) { |
| |
| %a = udiv i64 %x, 0 |
| ; CHECK: --> (%x /u 0) |
| |
| %B = shl i64 %x, 64 |
| ; CHECK: --> %B |
| |
| %b = ashr i64 %B, 64 |
| ; CHECK: --> %b |
| |
| %c = lshr i64 %x, 64 |
| ; CHECK: --> %c |
| |
| %d = shl i64 %x, 64 |
| ; CHECK: --> %d |
| |
| %E = shl i64 %x, -1 |
| ; CHECK: --> %E |
| |
| %e = ashr i64 %E, -1 |
| ; CHECK: --> %e |
| |
| %f = lshr i64 %x, -1 |
| ; CHECK: --> %f |
| |
| %g = shl i64 %x, -1 |
| ; CHECK: --> %g |
| |
| %h = bitcast i64 undef to i64 |
| ; CHECK: --> undef |
| |
| ret void |
| } |
