| ; RUN: opt -passes='print<memoryssa>' -disable-output %s 2>&1 | FileCheck %s |
| |
| ; Note: if @foo is modelled as a MemoryDef, this test will assert with -loop-rotate, due to MemorySSA not |
| ; being preserved when moving instructions that may not read from or write to memory. |
| |
| ; CHECK-LABEL: @main |
| ; CHECK-NOT: MemoryDef |
| define void @main(i1 %arg) { |
| entry: |
| br label %for.cond120 |
| |
| for.cond120: ; preds = %for.body127, %entry |
| call void @foo(i1 %arg) |
| br i1 %arg, label %for.body127, label %for.cond.cleanup126 |
| |
| for.cond.cleanup126: ; preds = %for.cond120 |
| unreachable |
| |
| for.body127: ; preds = %for.cond120 |
| %0 = load ptr, ptr undef, align 1 |
| br label %for.cond120 |
| } |
| |
| declare void @foo() readnone |
| |
| |
