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; RUN: opt -mtriple=x86_64-apple-darwin -mcpu=core2 -passes=loop-vectorize,dce,instcombine -S < %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"
@B = common global [1024 x i32] zeroinitializer, align 16
@A = common global [1024 x i32] zeroinitializer, align 16
; We use to not vectorize this loop because the shift was deemed to expensive.
; Now that we differentiate shift cost base on the operand value kind, we will
; vectorize this loop.
; CHECK: ashr <4 x i32>
define void @f() {
entry:
br label %for.body
for.body:
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
%arrayidx = getelementptr inbounds [1024 x i32], ptr @B, i64 0, i64 %indvars.iv
%0 = load i32, ptr %arrayidx, align 4
%shl = ashr i32 %0, 3
%arrayidx2 = getelementptr inbounds [1024 x i32], ptr @A, i64 0, i64 %indvars.iv
store i32 %shl, ptr %arrayidx2, align 4
%indvars.iv.next = add i64 %indvars.iv, 1
%lftr.wideiv = trunc i64 %indvars.iv.next to i32
%exitcond = icmp eq i32 %lftr.wideiv, 1024
br i1 %exitcond, label %for.end, label %for.body
for.end:
ret void
}
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