2012-10-24 20:36:32 +00:00
|
|
|
; RUN: opt < %s -loop-vectorize -force-vector-width=4 -dce -instcombine -licm -S | FileCheck %s
|
2012-10-17 18:25:06 +00:00
|
|
|
|
|
|
|
|
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"
|
|
|
|
|
target triple = "x86_64-apple-macosx10.8.0"
|
|
|
|
|
|
|
|
|
|
@b = common global [2048 x i32] zeroinitializer, align 16
|
|
|
|
|
@c = common global [2048 x i32] zeroinitializer, align 16
|
|
|
|
|
@a = common global [2048 x i32] zeroinitializer, align 16
|
|
|
|
|
|
|
|
|
|
;CHECK: @example1
|
|
|
|
|
;CHECK: shl i32
|
2012-10-18 05:29:12 +00:00
|
|
|
;CHECK: zext i32
|
2012-10-17 18:25:06 +00:00
|
|
|
;CHECK: load <4 x i32>
|
2012-10-31 21:40:39 +00:00
|
|
|
;CHECK: add nsw <4 x i32>
|
2012-10-17 18:25:06 +00:00
|
|
|
;CHECK: store <4 x i32>
|
|
|
|
|
;CHECK: ret void
|
|
|
|
|
define void @example1(i32 %n) nounwind uwtable ssp {
|
|
|
|
|
%n4 = shl i32 %n, 2
|
|
|
|
|
br label %1
|
|
|
|
|
|
|
|
|
|
; <label>:1 ; preds = %1, %0
|
|
|
|
|
%indvars.iv = phi i64 [ 0, %0 ], [ %indvars.iv.next, %1 ]
|
|
|
|
|
%2 = getelementptr inbounds [2048 x i32]* @b, i64 0, i64 %indvars.iv
|
|
|
|
|
%3 = load i32* %2, align 4
|
|
|
|
|
%4 = getelementptr inbounds [2048 x i32]* @c, i64 0, i64 %indvars.iv
|
|
|
|
|
%5 = load i32* %4, align 4
|
|
|
|
|
%6 = add nsw i32 %5, %3
|
|
|
|
|
%7 = getelementptr inbounds [2048 x i32]* @a, i64 0, i64 %indvars.iv
|
|
|
|
|
store i32 %6, i32* %7, align 4
|
|
|
|
|
%indvars.iv.next = add i64 %indvars.iv, 1
|
|
|
|
|
%lftr.wideiv = trunc i64 %indvars.iv.next to i32
|
|
|
|
|
%exitcond = icmp eq i32 %lftr.wideiv, %n4
|
|
|
|
|
br i1 %exitcond, label %8, label %1
|
|
|
|
|
|
|
|
|
|
; <label>:8 ; preds = %1
|
|
|
|
|
ret void
|
|
|
|
|
}
|
|
|
|
|
|
