Revert "Temporarily Revert "Add basic loop fusion pass.""
The reversion apparently deleted the test/Transforms directory.
Will be re-reverting again.
llvm-svn: 358552
diff --git a/llvm/test/Transforms/LoopVectorize/cpp-new-array.ll b/llvm/test/Transforms/LoopVectorize/cpp-new-array.ll
new file mode 100644
index 0000000..53703cc
--- /dev/null
+++ b/llvm/test/Transforms/LoopVectorize/cpp-new-array.ll
@@ -0,0 +1,45 @@
+; RUN: opt < %s -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -dce -instcombine -S | 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"
+
+;CHECK-LABEL: @cpp_new_arrays(
+;CHECK: sext i32
+;CHECK: load <4 x float>
+;CHECK: fadd <4 x float>
+;CHECK: ret i32
+define i32 @cpp_new_arrays() uwtable ssp {
+entry:
+ %call = call noalias i8* @_Znwm(i64 4)
+ %0 = bitcast i8* %call to float*
+ store float 1.000000e+03, float* %0, align 4
+ %call1 = call noalias i8* @_Znwm(i64 4)
+ %1 = bitcast i8* %call1 to float*
+ store float 1.000000e+03, float* %1, align 4
+ %call3 = call noalias i8* @_Znwm(i64 4)
+ %2 = bitcast i8* %call3 to float*
+ store float 1.000000e+03, float* %2, align 4
+ br label %for.body
+
+for.body: ; preds = %entry, %for.body
+ %i.01 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
+ %idxprom = sext i32 %i.01 to i64
+ %arrayidx = getelementptr inbounds float, float* %0, i64 %idxprom
+ %3 = load float, float* %arrayidx, align 4
+ %idxprom5 = sext i32 %i.01 to i64
+ %arrayidx6 = getelementptr inbounds float, float* %1, i64 %idxprom5
+ %4 = load float, float* %arrayidx6, align 4
+ %add = fadd float %3, %4
+ %idxprom7 = sext i32 %i.01 to i64
+ %arrayidx8 = getelementptr inbounds float, float* %2, i64 %idxprom7
+ store float %add, float* %arrayidx8, align 4
+ %inc = add nsw i32 %i.01, 1
+ %cmp = icmp slt i32 %inc, 1000
+ br i1 %cmp, label %for.body, label %for.end
+
+for.end: ; preds = %for.body
+ %5 = load float, float* %2, align 4
+ %conv10 = fptosi float %5 to i32
+ ret i32 %conv10
+}
+
+declare noalias i8* @_Znwm(i64)