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-rw-r--r--test/Transforms/SLPVectorizer/X86/simple-loop.ll100
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diff --git a/test/Transforms/SLPVectorizer/X86/simple-loop.ll b/test/Transforms/SLPVectorizer/X86/simple-loop.ll
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+++ b/test/Transforms/SLPVectorizer/X86/simple-loop.ll
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+; RUN: opt < %s -basicaa -slp-vectorizer -dce -S -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7-avx | FileCheck %s
+
+target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
+target triple = "x86_64-apple-macosx10.8.0"
+
+;CHECK:rollable
+define i32 @rollable(i32* noalias nocapture %in, i32* noalias nocapture %out, i64 %n) {
+ %1 = icmp eq i64 %n, 0
+ br i1 %1, label %._crit_edge, label %.lr.ph
+
+.lr.ph: ; preds = %0, %.lr.ph
+ %i.019 = phi i64 [ %26, %.lr.ph ], [ 0, %0 ]
+ %2 = shl i64 %i.019, 2
+ %3 = getelementptr inbounds i32* %in, i64 %2
+;CHECK:load <4 x i32>
+ %4 = load i32* %3, align 4
+ %5 = or i64 %2, 1
+ %6 = getelementptr inbounds i32* %in, i64 %5
+ %7 = load i32* %6, align 4
+ %8 = or i64 %2, 2
+ %9 = getelementptr inbounds i32* %in, i64 %8
+ %10 = load i32* %9, align 4
+ %11 = or i64 %2, 3
+ %12 = getelementptr inbounds i32* %in, i64 %11
+ %13 = load i32* %12, align 4
+;CHECK:mul <4 x i32>
+ %14 = mul i32 %4, 7
+;CHECK:add <4 x i32>
+ %15 = add i32 %14, 7
+ %16 = mul i32 %7, 7
+ %17 = add i32 %16, 14
+ %18 = mul i32 %10, 7
+ %19 = add i32 %18, 21
+ %20 = mul i32 %13, 7
+ %21 = add i32 %20, 28
+ %22 = getelementptr inbounds i32* %out, i64 %2
+;CHECK:store <4 x i32>
+ store i32 %15, i32* %22, align 4
+ %23 = getelementptr inbounds i32* %out, i64 %5
+ store i32 %17, i32* %23, align 4
+ %24 = getelementptr inbounds i32* %out, i64 %8
+ store i32 %19, i32* %24, align 4
+ %25 = getelementptr inbounds i32* %out, i64 %11
+ store i32 %21, i32* %25, align 4
+ %26 = add i64 %i.019, 1
+ %exitcond = icmp eq i64 %26, %n
+ br i1 %exitcond, label %._crit_edge, label %.lr.ph
+
+._crit_edge: ; preds = %.lr.ph, %0
+;CHECK: ret
+ ret i32 undef
+}
+
+;CHECK:unrollable
+;CHECK-NOT: <4 x i32>
+;CHECK: ret
+define i32 @unrollable(i32* %in, i32* %out, i64 %n) nounwind ssp uwtable {
+ %1 = icmp eq i64 %n, 0
+ br i1 %1, label %._crit_edge, label %.lr.ph
+
+.lr.ph: ; preds = %0, %.lr.ph
+ %i.019 = phi i64 [ %26, %.lr.ph ], [ 0, %0 ]
+ %2 = shl i64 %i.019, 2
+ %3 = getelementptr inbounds i32* %in, i64 %2
+ %4 = load i32* %3, align 4
+ %5 = or i64 %2, 1
+ %6 = getelementptr inbounds i32* %in, i64 %5
+ %7 = load i32* %6, align 4
+ %8 = or i64 %2, 2
+ %9 = getelementptr inbounds i32* %in, i64 %8
+ %10 = load i32* %9, align 4
+ %11 = or i64 %2, 3
+ %12 = getelementptr inbounds i32* %in, i64 %11
+ %13 = load i32* %12, align 4
+ %14 = mul i32 %4, 7
+ %15 = add i32 %14, 7
+ %16 = mul i32 %7, 7
+ %17 = add i32 %16, 14
+ %18 = mul i32 %10, 7
+ %19 = add i32 %18, 21
+ %20 = mul i32 %13, 7
+ %21 = add i32 %20, 28
+ %22 = getelementptr inbounds i32* %out, i64 %2
+ store i32 %15, i32* %22, align 4
+ %23 = getelementptr inbounds i32* %out, i64 %5
+ store i32 %17, i32* %23, align 4
+ %barrier = call i32 @goo(i32 0) ; <---------------- memory barrier.
+ %24 = getelementptr inbounds i32* %out, i64 %8
+ store i32 %19, i32* %24, align 4
+ %25 = getelementptr inbounds i32* %out, i64 %11
+ store i32 %21, i32* %25, align 4
+ %26 = add i64 %i.019, 1
+ %exitcond = icmp eq i64 %26, %n
+ br i1 %exitcond, label %._crit_edge, label %.lr.ph
+
+._crit_edge: ; preds = %.lr.ph, %0
+ ret i32 undef
+}
+
+declare i32 @goo(i32)
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