final/test/ScheduleOptimizer/prevectorization.ll

; RUN: opt -S %loadPolly -basicaa -polly-opt-isl -polly-vectorizer=polly -polly-ast -analyze < %s | FileCheck %s 
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

@C = common global [1536 x [1536 x float]] zeroinitializer, align 16
@A = common global [1536 x [1536 x float]] zeroinitializer, align 16
@B = common global [1536 x [1536 x float]] zeroinitializer, align 16

; Function Attrs: nounwind uwtable
define void @foo() #0 {
entry:
  br label %entry.split

entry.split:                                      ; preds = %entry
  br label %for.cond1.preheader

for.cond1.preheader:                              ; preds = %entry.split, %for.inc28
  %indvar4 = phi i64 [ 0, %entry.split ], [ %indvar.next5, %for.inc28 ]
  br label %for.body3

for.body3:                                        ; preds = %for.cond1.preheader, %for.inc25
  %indvar6 = phi i64 [ 0, %for.cond1.preheader ], [ %indvar.next7, %for.inc25 ]
  %arrayidx24 = getelementptr [1536 x [1536 x float]]* @C, i64 0, i64 %indvar4, i64 %indvar6
  store float 0.000000e+00, float* %arrayidx24, align 4
  br label %for.body8

for.body8:                                        ; preds = %for.body3, %for.body8
  %indvar = phi i64 [ 0, %for.body3 ], [ %indvar.next, %for.body8 ]
  %arrayidx16 = getelementptr [1536 x [1536 x float]]* @A, i64 0, i64 %indvar4, i64 %indvar
  %arrayidx20 = getelementptr [1536 x [1536 x float]]* @B, i64 0, i64 %indvar, i64 %indvar6
  %0 = load float* %arrayidx24, align 4
  %1 = load float* %arrayidx16, align 4
  %2 = load float* %arrayidx20, align 4
  %mul = fmul float %1, %2
  %add = fadd float %0, %mul
  store float %add, float* %arrayidx24, align 4
  %indvar.next = add i64 %indvar, 1
  %exitcond = icmp ne i64 %indvar.next, 1536
  br i1 %exitcond, label %for.body8, label %for.inc25

for.inc25:                                        ; preds = %for.body8
  %indvar.next7 = add i64 %indvar6, 1
  %exitcond8 = icmp ne i64 %indvar.next7, 1536
  br i1 %exitcond8, label %for.body3, label %for.inc28

for.inc28:                                        ; preds = %for.inc25
  %indvar.next5 = add i64 %indvar4, 1
  %exitcond9 = icmp ne i64 %indvar.next5, 1536
  br i1 %exitcond9, label %for.cond1.preheader, label %for.end30

for.end30:                                        ; preds = %for.inc28
  ret void
}

attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }

; CHECK: #pragma known-parallel
; CHECK: for (int c1 = 0; c1 <= 1535; c1 += 32)
; CHECK:   for (int c2 = 0; c2 <= 1535; c2 += 32)
; CHECK:     for (int c3 = c1; c3 <= c1 + 31; c3 += 1)
; CHECK:       for (int c4 = c2; c4 <= c2 + 31; c4 += 4)
; CHECK:         #pragma simd
; CHECK:         for (int c5 = c4; c5 <= c4 + 3; c5 += 1)
; CHECK:           Stmt_for_body3(c3, c5);
; CHECK: #pragma known-parallel
; CHECK: for (int c1 = 0; c1 <= 1535; c1 += 32)
; CHECK:   for (int c2 = 0; c2 <= 1535; c2 += 32)
; CHECK:     for (int c3 = 0; c3 <= 1535; c3 += 32)
; CHECK:       for (int c4 = c1; c4 <= c1 + 31; c4 += 1)
; CHECK:         for (int c5 = c2; c5 <= c2 + 31; c5 += 4)
; CHECK:           for (int c6 = c3; c6 <= c3 + 31; c6 += 1)
; CHECK:             #pragma simd
; CHECK:             for (int c7 = c5; c7 <= c5 + 3; c7 += 1)
; CHECK:               Stmt_for_body8(c4, c7, c6);

!llvm.ident = !{!0}

!0 = !{!"clang version 3.5.0 "}