| ; RUN: opt -passes=loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -S %s | FileCheck --check-prefix=VF4 %s |
| ; RUN: opt -passes=loop-vectorize -force-vector-interleave=2 -force-vector-width=1 -S %s | FileCheck --check-prefix=IC2 %s |
| |
| ; rdar://problem/12848162 |
| |
| 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" |
| |
| @a = common global [2048 x i32] zeroinitializer, align 16 |
| |
| define void @example12() { |
| ; VF4-LABEL: @example12( |
| ; VF4-LABEL: vector.body: |
| ; VF4: [[VEC_IND:%.+]] = phi <4 x i32> |
| ; VF4: store <4 x i32> [[VEC_IND]] |
| ; VF4: middle.block: |
| ; |
| ; IC2-LABEL: @example12( |
| ; IC2-LABEL: vector.body: |
| ; IC2-NEXT: [[INDEX:%.+]] = phi i64 [ 0, %vector.ph ] |
| ; IC2-NEXT: [[TRUNC:%.+]] = trunc i64 [[INDEX]] to i32 |
| ; IC2-NEXT: [[TRUNC0:%.+]] = add i32 [[TRUNC]], 0 |
| ; IC2-NEXT: [[TRUNC1:%.+]] = add i32 [[TRUNC]], 1 |
| ; IC2: store i32 [[TRUNC0]], |
| ; IC2-NEXT: store i32 [[TRUNC1]], |
| ; |
| entry: |
| br label %loop |
| |
| loop: |
| %iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ] |
| %gep = getelementptr inbounds [2048 x i32], [2048 x i32]* @a, i64 0, i64 %iv |
| %iv.trunc = trunc i64 %iv to i32 |
| store i32 %iv.trunc, i32* %gep, align 4 |
| %iv.next = add i64 %iv, 1 |
| %iv.next.trunc = trunc i64 %iv.next to i32 |
| %exitcond = icmp eq i32 %iv.next.trunc, 1024 |
| br i1 %exitcond, label %exit, label %loop |
| |
| exit: |
| ret void |
| } |
| |