llvm-project/llvm/test/Transforms/Util/MemorySSA/cyclicphi.ll

34 lines
1.3 KiB
LLVM

; RUN: opt -basicaa -print-memoryssa -verify-memoryssa -analyze < %s 2>&1 | FileCheck %s
%struct.hoge = type { i32, %struct.widget }
%struct.widget = type { i64 }
define hidden void @quux(%struct.hoge *%f) align 2 {
%tmp = getelementptr inbounds %struct.hoge, %struct.hoge* %f, i64 0, i32 1, i32 0
%tmp24 = getelementptr inbounds %struct.hoge, %struct.hoge* %f, i64 0, i32 1
%tmp25 = bitcast %struct.widget* %tmp24 to i64**
br label %bb26
bb26: ; preds = %bb77, %0
; CHECK: 3 = MemoryPhi({%0,liveOnEntry},{bb77,2})
; CHECK-NEXT: br i1 undef, label %bb68, label %bb77
br i1 undef, label %bb68, label %bb77
bb68: ; preds = %bb26
; CHECK: MemoryUse(liveOnEntry)
; CHECK-NEXT: %tmp69 = load i64, i64* null, align 8
%tmp69 = load i64, i64* null, align 8
; CHECK: 1 = MemoryDef(3)
; CHECK-NEXT: store i64 %tmp69, i64* %tmp, align 8
store i64 %tmp69, i64* %tmp, align 8
br label %bb77
bb77: ; preds = %bb68, %bb26
; CHECK: 2 = MemoryPhi({bb26,3},{bb68,1})
; CHECK: MemoryUse(2)
; CHECK-NEXT: %tmp78 = load i64*, i64** %tmp25, align 8
%tmp78 = load i64*, i64** %tmp25, align 8
%tmp79 = getelementptr inbounds i64, i64* %tmp78, i64 undef
br label %bb26
}