| Dehao Chen | ebb715b | 2016-09-08 16:53:40 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -instsimplify |
| 2 | |
| 3 | ; instsimplify pass should explicitly require DominatorTreeAnalysis |
| 4 | ; This test will segfault if DominatorTree is not available |
| 5 | |
| 6 | target triple = "x86_64-grtev4-linux-gnu" |
| 7 | |
| 8 | ; Function Attrs: nounwind uwtable |
| 9 | define void @foo(i16 *) #1 align 2 { |
| 10 | br i1 undef, label %exit, label %2 |
| 11 | |
| 12 | ; <label>:2: |
| 13 | %3 = tail call i8* @_Znwm(i64 56) #10 |
| 14 | %4 = bitcast i8* %3 to i16* |
| 15 | %p = load i16*, i16** undef, align 8 |
| 16 | %5 = icmp eq i16* %p, %4 |
| 17 | br i1 %5, label %exit, label %6 |
| 18 | |
| 19 | ; <label>:6: |
| 20 | %7 = icmp eq i16* %p, null |
| 21 | br i1 %7, label %exit, label %8 |
| 22 | |
| 23 | ; <label>:8: |
| 24 | br label %exit |
| 25 | |
| 26 | exit: |
| 27 | ret void |
| 28 | } |
| 29 | |
| 30 | ; Function Attrs: nobuiltin |
| 31 | declare i8* @_Znwm(i64) |