1 ; RUN: opt < %s -loop-vectorize -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7 -dce -instcombine -S | FileCheck %s 2 ; RUN: opt < %s -loop-vectorize -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7 -force-vector-interleave=0 -dce -instcombine -S | FileCheck %s -check-prefix=UNROLL 3 4 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" 5 target triple = "x86_64-apple-macosx10.8.0" 6 7 @b = common global [2048 x i32] zeroinitializer, align 16 8 @c = common global [2048 x i32] zeroinitializer, align 16 9 @a = common global [2048 x i32] zeroinitializer, align 16 10 11 ; Select VF = 8; 12 ;CHECK-LABEL: @example1( 13 ;CHECK: load <4 x i32> 14 ;CHECK: add nsw <4 x i32> 15 ;CHECK: store <4 x i32> 16 ;CHECK: ret void 17 18 ;UNROLL-LABEL: @example1( 19 ;UNROLL: load <4 x i32> 20 ;UNROLL: load <4 x i32> 21 ;UNROLL: add nsw <4 x i32> 22 ;UNROLL: add nsw <4 x i32> 23 ;UNROLL: store <4 x i32> 24 ;UNROLL: store <4 x i32> 25 ;UNROLL: ret void 26 define void @example1() nounwind uwtable ssp { 27 br label %1 28 29 ; <label>:1 ; preds = %1, %0 30 %indvars.iv = phi i64 [ 0, %0 ], [ %indvars.iv.next, %1 ] 31 %2 = getelementptr inbounds [2048 x i32], [2048 x i32]* @b, i64 0, i64 %indvars.iv 32 %3 = load i32, i32* %2, align 4 33 %4 = getelementptr inbounds [2048 x i32], [2048 x i32]* @c, i64 0, i64 %indvars.iv 34 %5 = load i32, i32* %4, align 4 35 %6 = add nsw i32 %5, %3 36 %7 = getelementptr inbounds [2048 x i32], [2048 x i32]* @a, i64 0, i64 %indvars.iv 37 store i32 %6, i32* %7, align 4 38 %indvars.iv.next = add i64 %indvars.iv, 1 39 %lftr.wideiv = trunc i64 %indvars.iv.next to i32 40 %exitcond = icmp eq i32 %lftr.wideiv, 256 41 br i1 %exitcond, label %8, label %1 42 43 ; <label>:8 ; preds = %1 44 ret void 45 } 46 47 ; Select VF=4 because sext <8 x i1> to <8 x i32> is expensive. 48 ;CHECK-LABEL: @example10b( 49 ;CHECK: load <4 x i16> 50 ;CHECK: sext <4 x i16> 51 ;CHECK: store <4 x i32> 52 ;CHECK: ret void 53 ;UNROLL-LABEL: @example10b( 54 ;UNROLL: load <4 x i16> 55 ;UNROLL: load <4 x i16> 56 ;UNROLL: store <4 x i32> 57 ;UNROLL: store <4 x i32> 58 ;UNROLL: ret void 59 define void @example10b(i16* noalias nocapture %sa, i16* noalias nocapture %sb, i16* noalias nocapture %sc, i32* noalias nocapture %ia, i32* noalias nocapture %ib, i32* noalias nocapture %ic) nounwind uwtable ssp { 60 br label %1 61 62 ; <label>:1 ; preds = %1, %0 63 %indvars.iv = phi i64 [ 0, %0 ], [ %indvars.iv.next, %1 ] 64 %2 = getelementptr inbounds i16, i16* %sb, i64 %indvars.iv 65 %3 = load i16, i16* %2, align 2 66 %4 = sext i16 %3 to i32 67 %5 = getelementptr inbounds i32, i32* %ia, i64 %indvars.iv 68 store i32 %4, i32* %5, align 4 69 %indvars.iv.next = add i64 %indvars.iv, 1 70 %lftr.wideiv = trunc i64 %indvars.iv.next to i32 71 %exitcond = icmp eq i32 %lftr.wideiv, 1024 72 br i1 %exitcond, label %6, label %1 73 74 ; <label>:6 ; preds = %1 75 ret void 76 } 77 78
