| ; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep { i32 \[%\]sd, \[\[:alnum:\]\]* \\?1\\>} | count 4 |
| |
| ; Instcombine normally would fold the sdiv into the comparison, |
| ; making "icmp slt i32 %h, 2", but in this case the sdiv has |
| ; another use, so it wouldn't a big win, and it would also |
| ; obfuscate an otherise obvious smax pattern to the point where |
| ; other analyses wouldn't recognize it. |
| |
| define i32 @foo(i32 %h) { |
| %sd = sdiv i32 %h, 2 |
| %t = icmp slt i32 %sd, 1 |
| %r = select i1 %t, i32 %sd, i32 1 |
| ret i32 %r |
| } |
| |
| define i32 @bar(i32 %h) { |
| %sd = sdiv i32 %h, 2 |
| %t = icmp sgt i32 %sd, 1 |
| %r = select i1 %t, i32 %sd, i32 1 |
| ret i32 %r |
| } |
| |
