; REQUIRES: asserts
; RUN: opt -passes=loop-vectorize -debug-only=loop-accesses -force-vector-width=4 -disable-output %s 2>&1 | FileCheck %s -check-prefix=LOOP-ACCESS
; RUN: opt -passes=loop-vectorize -debug-only=vectorutils -force-vector-width=4 -disable-output %s 2>&1 | FileCheck %s
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-redhat-linux-gnu"
%struct.foo = type { ptr, ptr, ptr }
%struct.pluto = type <{ %struct.wombat, %struct.spam, %struct.wibble, [6 x i8] }>
%struct.wombat = type { %struct.barney }
%struct.barney = type { %struct.widget }
%struct.widget = type { %struct.hoge }
%struct.hoge = type { %struct.pluto.0 }
%struct.pluto.0 = type { %struct.foo }
%struct.spam = type { %struct.barney.1 }
%struct.barney.1 = type { %struct.ham }
%struct.ham = type { %struct.bar }
%struct.bar = type { %struct.barney.2 }
%struct.barney.2 = type { %struct.hoge.3 }
%struct.hoge.3 = type { ptr, ptr, ptr }
%struct.wibble = type { %struct.spam.4 }
%struct.spam.4 = type { [2 x %struct.zot] }
%struct.zot = type { %struct.bar.5 }
%struct.bar.5 = type { i8 }
%struct.baz = type { i64, %struct.pluto }
; LOOP-ACCESS: Too many dependences, stopped recording
; If no dependences are recorded because there are too many, LoopAccessAnalysis
; just conservatively returns true for any pair of instructions compared (even
; those belonging to the same store group). This tests make sure that we do not
; incorrectly release a store group which had no dependences between its
; members, even if we have no dependences recorded because there are too many.
; CHECK: LV: Creating an interleave group with: store ptr null, ptr %phi5, align 8
; CHECK: LV: Inserted: store ptr %load12, ptr %getelementptr11, align 8
; CHECK: into the interleave group with store ptr null, ptr %phi5
; CHECK: LV: Inserted: store ptr %load7, ptr %getelementptr, align 8
; CHECK: into the interleave group with store ptr null, ptr %phi5
; CHECK: LV: Creating an interleave group with: store ptr null, ptr %getelementptr13, align 8
; CHECK: LV: Inserted: store ptr null, ptr %phi6, align 8
; CHECK: into the interleave group with store ptr null, ptr %getelementptr13
; CHECK: LV: Invalidated store group due to dependence between store ptr %load7, ptr %getelementptr, align 8 and store ptr null, ptr %getelementptr13, align 8
; CHECK-NOT: LV: Invalidated store group due to dependence between
; Note: The (only) invalidated store group is the one containing A (store ptr %load7, ptr %getelementptr, align 8) which is:
; Group with instructions:
; store ptr null, ptr %phi5, align 8
; store ptr %load7, ptr %getelementptr, align 8
; store ptr %load12, ptr %getelementptr11, align 8
define void @test(ptr %arg, ptr %arg1) local_unnamed_addr #0 {
bb:
br label %bb2
bb2: ; preds = %bb4, %bb
%phi = phi ptr [ %arg, %bb ], [ %phi3, %bb4 ]
%phi3 = phi ptr [ %arg1, %bb ], [ null, %bb4 ]
br label %bb4
bb4: ; preds = %bb4, %bb2
%phi5 = phi ptr [ %getelementptr15, %bb4 ], [ %phi, %bb2 ]
%phi6 = phi ptr [ %getelementptr14, %bb4 ], [ %phi3, %bb2 ]
%load = load i64, ptr %phi5, align 8
store i64 %load, ptr %phi, align 8
store i64 0, ptr %phi3, align 8
%load7 = load ptr, ptr %phi6, align 8
%load8 = load ptr, ptr %phi5, align 8
store ptr %load8, ptr %phi6, align 8
%getelementptr = getelementptr %struct.foo, ptr %phi5, i64 0, i32 1
%load9 = load ptr, ptr %phi5, align 8
store ptr %load9, ptr %phi6, align 8
%load10 = load ptr, ptr %phi5, align 8
store ptr %load10, ptr %phi6, align 8
store ptr null, ptr %phi5, align 8
store ptr %load7, ptr %getelementptr, align 8
%getelementptr11 = getelementptr %struct.pluto, ptr %phi5, i64 0, i32 1
%load12 = load ptr, ptr %phi6, align 8
%getelementptr13 = getelementptr %struct.pluto, ptr %phi6, i64 0, i32 1, i32 0, i32 0, i32 0, i32 0, i32 0, i32 2
store ptr null, ptr %phi6, align 8
store ptr null, ptr %getelementptr13, align 8
store ptr %load12, ptr %getelementptr11, align 8
store ptr null, ptr %phi5, align 8
%getelementptr14 = getelementptr inbounds %struct.baz, ptr %phi6, i64 1
%getelementptr15 = getelementptr %struct.baz, ptr %phi5, i64 1
%icmp = icmp eq ptr %phi6, %phi
br i1 %icmp, label %bb2, label %bb4
}
; Function Attrs: memory(readwrite, inaccessiblemem: none)
declare void @foo() local_unnamed_addr #0
; Function Attrs: memory(argmem: readwrite)
declare void @pluto() local_unnamed_addr #1
attributes #0 = { memory(readwrite, inaccessiblemem: none) }
attributes #1 = { memory(argmem: readwrite) }
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