1 files changed, 62 insertions, 2 deletions
diff --git a/test/Transforms/BBVectorize/simple-ldstr.ll b/test/Transforms/BBVectorize/simple-ldstr.ll
index a5397ee..7dd77c9 100644
--- a/test/Transforms/BBVectorize/simple-ldstr.ll
+++ b/test/Transforms/BBVectorize/simple-ldstr.ll
@@ -94,13 +94,13 @@ entry:
 ; CHECK-AO: @test3
 ; CHECK-AO: %i0 = load double* %a, align 8
 ; CHECK-AO: %i1 = load double* %b, align 8
-; CHECK-AO: %mul.v.i1.1 = insertelement <2 x double> undef, double %i1, i32 0
-; CHECK-AO: %mul.v.i0.1 = insertelement <2 x double> undef, double %i0, i32 0
 ; CHECK-AO: %arrayidx3 = getelementptr inbounds double* %a, i64 1
 ; CHECK-AO: %i3 = load double* %arrayidx3, align 8
 ; CHECK-AO: %arrayidx4 = getelementptr inbounds double* %b, i64 1
 ; CHECK-AO: %i4 = load double* %arrayidx4, align 8
+; CHECK-AO: %mul.v.i1.1 = insertelement <2 x double> undef, double %i1, i32 0
 ; CHECK-AO: %mul.v.i1.2 = insertelement <2 x double> %mul.v.i1.1, double %i4, i32 1
+; CHECK-AO: %mul.v.i0.1 = insertelement <2 x double> undef, double %i0, i32 0
 ; CHECK-AO: %mul.v.i0.2 = insertelement <2 x double> %mul.v.i0.1, double %i3, i32 1
 ; CHECK-AO: %mul = fmul <2 x double> %mul.v.i0.2, %mul.v.i1.2
 ; CHECK-AO: %mulf = fptrunc <2 x double> %mul to <2 x float>
@@ -108,3 +108,63 @@ entry:
 ; CHECK-AO: store <2 x float> %mulf, <2 x float>* %0, align 8
 ; CHECK-AO: ret void
 }
+
+; Simple 3-pair chain with loads and stores (unreachable)
+define void @test4(i1 %bool, double* %a, double* %b, double* %c) nounwind uwtable readonly {
+entry:
+  br i1 %bool, label %if.then1, label %if.end
+
+if.then1:
+  unreachable
+  br label %if.then
+
+if.then:
+  %i0 = load double* %a, align 8
+  %i1 = load double* %b, align 8
+  %mul = fmul double %i0, %i1
+  %arrayidx3 = getelementptr inbounds double* %a, i64 1
+  %i3 = load double* %arrayidx3, align 8
+  %arrayidx4 = getelementptr inbounds double* %b, i64 1
+  %i4 = load double* %arrayidx4, align 8
+  %mul5 = fmul double %i3, %i4
+  store double %mul, double* %c, align 8
+  %arrayidx5 = getelementptr inbounds double* %c, i64 1
+  store double %mul5, double* %arrayidx5, align 8
+  br label %if.end
+
+if.end:
+  ret void
+; CHECK: @test4
+; CHECK-NOT: <2 x double>
+; CHECK-AO: @test4
+; CHECK-AO-NOT: <2 x double>
+}
+
+; Simple 3-pair chain with loads and stores
+define void @test5(double* %a, double* %b, double* %c) nounwind uwtable readonly {
+entry:
+  %i0 = load double* %a, align 8
+  %i1 = load double* %b, align 8
+  %mul = fmul double %i0, %i1
+  %arrayidx3 = getelementptr inbounds double* %a, i64 1
+  %i3 = load double* %arrayidx3, align 8
+  %arrayidx4 = getelementptr inbounds double* %b, i64 1
+  %i4 = load double* %arrayidx4, align 8
+  %mul5 = fmul double %i3, %i4
+  %arrayidx5 = getelementptr inbounds double* %c, i64 1
+  store double %mul5, double* %arrayidx5, align 8
+  store double %mul, double* %c, align 4
+  ret void
+; CHECK: @test5
+; CHECK: %i0.v.i0 = bitcast double* %a to <2 x double>*
+; CHECK: %i1.v.i0 = bitcast double* %b to <2 x double>*
+; CHECK: %i0 = load <2 x double>* %i0.v.i0, align 8
+; CHECK: %i1 = load <2 x double>* %i1.v.i0, align 8
+; CHECK: %mul = fmul <2 x double> %i0, %i1
+; CHECK: %0 = bitcast double* %c to <2 x double>*
+; CHECK: store <2 x double> %mul, <2 x double>* %0, align 4
+; CHECK: ret void
+; CHECK-AO: @test5
+; CHECK-AO-NOT: <2 x double>
+}
+