1 ; RUN: opt < %s -loop-vectorize -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7 -debug-only=loop-vectorize -S 2>&1 | FileCheck %s 2 ; REQUIRES: asserts 3 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 4 target triple = "x86_64-unknown-linux-gnu" 5 6 ; CHECK-LABEL: test 7 ; CHECK-DAG: LV: Found uniform instruction: %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] 8 ; CHECK-DAG: LV: Found uniform instruction: %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 9 ; CHECK-DAG: LV: Found uniform instruction: %exitcond = icmp eq i64 %indvars.iv, 1599 10 11 define void @test(float* noalias nocapture %a, float* noalias nocapture readonly %b) #0 { 12 entry: 13 br label %for.body 14 15 for.body: ; preds = %for.body, %entry 16 %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] 17 %arrayidx = getelementptr inbounds float, float* %b, i64 %indvars.iv 18 %tmp0 = load float, float* %arrayidx, align 4 19 %add = fadd float %tmp0, 1.000000e+00 20 %arrayidx5 = getelementptr inbounds float, float* %a, i64 %indvars.iv 21 store float %add, float* %arrayidx5, align 4 22 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 23 %exitcond = icmp eq i64 %indvars.iv, 1599 24 br i1 %exitcond, label %for.end, label %for.body 25 26 for.end: ; preds = %for.body 27 ret void 28 } 29 30 ; CHECK-LABEL: foo 31 ; CHECK-DAG: LV: Found uniform instruction: %cond = icmp eq i64 %i.next, %n 32 ; CHECK-DAG: LV: Found uniform instruction: %tmp1 = getelementptr inbounds i32, i32* %a, i32 %tmp0 33 ; CHECK-NOT: LV: Found uniform instruction: %i = phi i64 [ %i.next, %for.body ], [ 0, %entry ] 34 35 define void @foo(i32* %a, i64 %n) { 36 entry: 37 br label %for.body 38 39 for.body: 40 %i = phi i64 [ %i.next, %for.body ], [ 0, %entry ] 41 %tmp0 = trunc i64 %i to i32 42 %tmp1 = getelementptr inbounds i32, i32* %a, i32 %tmp0 43 store i32 %tmp0, i32* %tmp1, align 4 44 %i.next = add nuw nsw i64 %i, 1 45 %cond = icmp eq i64 %i.next, %n 46 br i1 %cond, label %for.end, label %for.body 47 48 for.end: 49 ret void 50 } 51
