| ; RUN: opt < %s -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -dce -instcombine -S | FileCheck %s |
| |
| ; int __attribute__((noinline)) sum_array(int *A, int n) { |
| ; return std::accumulate(A, A + n, 0); |
| ; } |
| |
| target datalayout = "e-p:64:64:64-p1:16:16:16-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-n8:16:32:64-S128" |
| |
| ;CHECK-LABEL: @sum_array( |
| ;CHECK: phi i64 |
| ;CHECK: phi <4 x i32> |
| ;CHECK: load <4 x i32> |
| ;CHECK: add <4 x i32> |
| ;CHECK: ret i32 |
| define i32 @sum_array(i32* %A, i32 %n) nounwind uwtable readonly noinline ssp { |
| %1 = sext i32 %n to i64 |
| %2 = getelementptr inbounds i32, i32* %A, i64 %1 |
| %3 = icmp eq i32 %n, 0 |
| br i1 %3, label %_ZSt10accumulateIPiiET0_T_S2_S1_.exit, label %.lr.ph.i |
| |
| .lr.ph.i: ; preds = %0, %.lr.ph.i |
| %.03.i = phi i32* [ %6, %.lr.ph.i ], [ %A, %0 ] |
| %.012.i = phi i32 [ %5, %.lr.ph.i ], [ 0, %0 ] |
| %4 = load i32, i32* %.03.i, align 4 |
| %5 = add nsw i32 %4, %.012.i |
| %6 = getelementptr inbounds i32, i32* %.03.i, i64 1 |
| %7 = icmp eq i32* %6, %2 |
| br i1 %7, label %_ZSt10accumulateIPiiET0_T_S2_S1_.exit, label %.lr.ph.i |
| |
| _ZSt10accumulateIPiiET0_T_S2_S1_.exit: ; preds = %.lr.ph.i, %0 |
| %.01.lcssa.i = phi i32 [ 0, %0 ], [ %5, %.lr.ph.i ] |
| ret i32 %.01.lcssa.i |
| } |
| |
| ; Same, but use a pointer with a different size. |
| ;CHECK-LABEL: @sum_array_as1( |
| ;CHECK: phi i16 |
| ;CHECK: phi <4 x i32> |
| ;CHECK: load <4 x i32> |
| ;CHECK: add <4 x i32> |
| ;CHECK: ret i32 |
| define i32 @sum_array_as1(i32 addrspace(1)* %A, i32 %n) nounwind uwtable readonly noinline ssp { |
| %1 = sext i32 %n to i64 |
| %2 = getelementptr inbounds i32, i32 addrspace(1)* %A, i64 %1 |
| %3 = icmp eq i32 %n, 0 |
| br i1 %3, label %_ZSt10accumulateIPiiET0_T_S2_S1_.exit, label %.lr.ph.i |
| |
| .lr.ph.i: ; preds = %0, %.lr.ph.i |
| %.03.i = phi i32 addrspace(1)* [ %6, %.lr.ph.i ], [ %A, %0 ] |
| %.012.i = phi i32 [ %5, %.lr.ph.i ], [ 0, %0 ] |
| %4 = load i32, i32 addrspace(1)* %.03.i, align 4 |
| %5 = add nsw i32 %4, %.012.i |
| %6 = getelementptr inbounds i32, i32 addrspace(1)* %.03.i, i64 1 |
| %7 = icmp eq i32 addrspace(1)* %6, %2 |
| br i1 %7, label %_ZSt10accumulateIPiiET0_T_S2_S1_.exit, label %.lr.ph.i |
| |
| _ZSt10accumulateIPiiET0_T_S2_S1_.exit: ; preds = %.lr.ph.i, %0 |
| %.01.lcssa.i = phi i32 [ 0, %0 ], [ %5, %.lr.ph.i ] |
| ret i32 %.01.lcssa.i |
| } |