| ; RUN: opt < %s -passes=loop-rotate -verify-memoryssa -S | FileCheck %s | |
| ; Test alloca in -loop-rotate. | |
| ; We expect a different value for %ptr each iteration (according to the | |
| ; definition of alloca). I.e. each @use must be paired with an alloca. | |
| ; CHECK: call void @use(ptr % | |
| ; CHECK: %ptr = alloca i8 | |
| @e = global i16 10 | |
| declare void @use(ptr) | |
| define void @test() { | |
| entry: | |
| %end = load i16, ptr @e | |
| br label %loop | |
| loop: | |
| %n.phi = phi i16 [ %n, %loop.fin ], [ 0, %entry ] | |
| %ptr = alloca i8 | |
| %cond = icmp eq i16 %n.phi, %end | |
| br i1 %cond, label %exit, label %loop.fin | |
| loop.fin: | |
| %n = add i16 %n.phi, 1 | |
| call void @use(ptr %ptr) | |
| br label %loop | |
| exit: | |
| ret void | |
| } |