forked from OSchip/llvm-project
39 lines
1.6 KiB
LLVM
39 lines
1.6 KiB
LLVM
; RUN: opt < %s -loop-vectorize -force-vector-unroll=1 -force-vector-width=4 -enable-if-conversion -dce -instcombine -S | FileCheck %s
|
|
|
|
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-macosx10.9.0"
|
|
|
|
;CHECK-LABEL: @reduction_func(
|
|
;CHECK-NOT: load <4 x i32>
|
|
;CHECK: ret i32
|
|
define i32 @reduction_func(i32* nocapture %A, i32 %n) nounwind uwtable readonly ssp {
|
|
entry:
|
|
%cmp10 = icmp sgt i32 %n, 0
|
|
br i1 %cmp10, label %for.body, label %for.end
|
|
|
|
for.body: ; preds = %entry, %for.inc
|
|
%indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ]
|
|
%sum.011 = phi i32 [ %sum.1, %for.inc ], [ 0, %entry ]
|
|
%arrayidx = getelementptr inbounds i32* %A, i64 %indvars.iv
|
|
%0 = load i32* %arrayidx, align 4
|
|
%cmp1 = icmp sgt i32 %0, 30
|
|
br i1 %cmp1, label %if.then, label %for.inc
|
|
|
|
if.then: ; preds = %for.body
|
|
%add = add i32 %sum.011, 2
|
|
%add4 = add i32 %add, %0
|
|
br label %for.inc
|
|
|
|
for.inc: ; preds = %for.body, %if.then
|
|
%sum.1 = phi i32 [ %add4, %if.then ], [ %sum.011, %for.body ]
|
|
%indvars.iv.next = add i64 %indvars.iv, 1
|
|
%lftr.wideiv = trunc i64 %indvars.iv.next to i32
|
|
%exitcond = icmp eq i32 %lftr.wideiv, %n
|
|
br i1 %exitcond, label %for.end, label %for.body
|
|
|
|
for.end: ; preds = %for.inc, %entry
|
|
%sum.0.lcssa = phi i32 [ 0, %entry ], [ 4, %for.inc ]
|
|
ret i32 %sum.0.lcssa
|
|
}
|
|
|