1 ; RUN: opt -S -passes=loop-vectorize -force-vector-width=2 -force-vector-interleave=1 -mcpu=prescott < %s | FileCheck %s
3 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32-n8:16:32-S128"
4 target triple = "i386-unknown-freebsd11.0"
6 @big = external global [0 x i32]
9 ; We need to truncate the exit count to i32. This is legal because the
10 ; arithmetic is signed (%inc is nsw).
12 ; CHECK-LABEL: tripcount
13 ; CHECK: trunc i64 %count to i32
15 define void @tripcount(i64 %count) {
17 %cmp6 = icmp sgt i64 %count, 0
18 br i1 %cmp6, label %for.body.preheader, label %for.end
24 %i.07 = phi i32 [ %inc, %for.body ], [ 0, %for.body.preheader ]
25 %arrayidx = getelementptr inbounds [0 x i32], ptr @big, i32 0, i32 %i.07
26 %0 = load i32, ptr %arrayidx, align 4
28 store i32 %neg, ptr %arrayidx, align 4
29 %inc = add nsw i32 %i.07, 1
30 %conv = sext i32 %inc to i64
31 %cmp = icmp slt i64 %conv, %count
32 br i1 %cmp, label %for.body, label %for.end.loopexit