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; RUN: opt -basicaa -print-memoryssa -verify-memoryssa -analyze < %s 2>&1 | FileCheck %s
; RUN: opt -aa-pipeline=basic-aa -passes='print<memoryssa>,verify<memoryssa>' -disable-output < %s 2>&1 | FileCheck %s
;
; Makes sure we have a sane model if both successors of some block is the same
; block.
define i32 @foo(i1 %a) {
entry:
%0 = alloca i32, align 4
; CHECK: 1 = MemoryDef(liveOnEntry)
; CHECK-NEXT: store i32 4
store i32 4, i32* %0
br i1 %a, label %Loop.Body, label %Loop.End
Loop.Body:
; CHECK: 4 = MemoryPhi({entry,1},{Loop.End,3})
; CHECK-NEXT: 2 = MemoryDef(4)
; CHECK-NEXT: store i32 5
store i32 5, i32* %0, align 4
br i1 %a, label %Loop.End, label %Loop.End ; WhyDoWeEvenHaveThatLever.gif
Loop.End:
; CHECK: 3 = MemoryPhi({entry,1},{Loop.Body,2},{Loop.Body,2})
; CHECK-NEXT: MemoryUse(3)
; CHECK-NEXT: %1 = load
%1 = load i32, i32* %0, align 4
%2 = icmp eq i32 5, %1
br i1 %2, label %Ret, label %Loop.Body
Ret:
ret i32 %1
}
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