| ; 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-macosx10.9.0" |
| |
| ; int foo(int *A) { |
| ; int r = A[0], g = A[1], b = A[2], a = A[3]; |
| ; for (int i=0; i < A[13]; i++) { |
| ; r*=18; g*=19; b*=12; a *=9; |
| ; } |
| ; A[0] = r; A[1] = g; A[2] = b; A[3] = a; |
| ; } |
| |
| ;CHECK-LABEL: @foo |
| ;CHECK: bitcast i32* %A to <4 x i32>* |
| ;CHECK-NEXT: load <4 x i32> |
| ;CHECK: phi <4 x i32> |
| ;CHECK-NEXT: mul nsw <4 x i32> |
| ;CHECK-NOT: mul |
| ;CHECK: phi <4 x i32> |
| ;CHECK: bitcast i32* %A to <4 x i32>* |
| ;CHECK-NEXT: store <4 x i32> |
| ;CHECK-NEXT:ret i32 undef |
| define i32 @foo(i32* nocapture %A) #0 { |
| entry: |
| %0 = load i32, i32* %A, align 4 |
| %arrayidx1 = getelementptr inbounds i32, i32* %A, i64 1 |
| %1 = load i32, i32* %arrayidx1, align 4 |
| %arrayidx2 = getelementptr inbounds i32, i32* %A, i64 2 |
| %2 = load i32, i32* %arrayidx2, align 4 |
| %arrayidx3 = getelementptr inbounds i32, i32* %A, i64 3 |
| %3 = load i32, i32* %arrayidx3, align 4 |
| %arrayidx4 = getelementptr inbounds i32, i32* %A, i64 13 |
| %4 = load i32, i32* %arrayidx4, align 4 |
| %cmp24 = icmp sgt i32 %4, 0 |
| br i1 %cmp24, label %for.body, label %for.end |
| |
| for.body: ; preds = %entry, %for.body |
| %i.029 = phi i32 [ %inc, %for.body ], [ 0, %entry ] |
| %a.028 = phi i32 [ %mul7, %for.body ], [ %3, %entry ] |
| %b.027 = phi i32 [ %mul6, %for.body ], [ %2, %entry ] |
| %g.026 = phi i32 [ %mul5, %for.body ], [ %1, %entry ] |
| %r.025 = phi i32 [ %mul, %for.body ], [ %0, %entry ] |
| %mul = mul nsw i32 %r.025, 18 |
| %mul5 = mul nsw i32 %g.026, 19 |
| %mul6 = mul nsw i32 %b.027, 12 |
| %mul7 = mul nsw i32 %a.028, 9 |
| %inc = add nsw i32 %i.029, 1 |
| %cmp = icmp slt i32 %inc, %4 |
| br i1 %cmp, label %for.body, label %for.end |
| |
| for.end: ; preds = %for.body, %entry |
| %a.0.lcssa = phi i32 [ %3, %entry ], [ %mul7, %for.body ] |
| %b.0.lcssa = phi i32 [ %2, %entry ], [ %mul6, %for.body ] |
| %g.0.lcssa = phi i32 [ %1, %entry ], [ %mul5, %for.body ] |
| %r.0.lcssa = phi i32 [ %0, %entry ], [ %mul, %for.body ] |
| store i32 %r.0.lcssa, i32* %A, align 4 |
| store i32 %g.0.lcssa, i32* %arrayidx1, align 4 |
| store i32 %b.0.lcssa, i32* %arrayidx2, align 4 |
| store i32 %a.0.lcssa, i32* %arrayidx3, align 4 |
| ret i32 undef |
| } |
| |
| |