From 5a197c06f33505a4cd0479028c08205a8743eade Mon Sep 17 00:00:00 2001 From: Nadav Rotem Date: Mon, 7 Jan 2013 23:13:00 +0000 Subject: LoopVectorizer: Add support for floating point reductions llvm-svn: 171812 --- .../Transforms/LoopVectorize/float-reduction.ll | 29 ++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 llvm/test/Transforms/LoopVectorize/float-reduction.ll (limited to 'llvm/test') diff --git a/llvm/test/Transforms/LoopVectorize/float-reduction.ll b/llvm/test/Transforms/LoopVectorize/float-reduction.ll new file mode 100644 index 00000000000..565684cccb9 --- /dev/null +++ b/llvm/test/Transforms/LoopVectorize/float-reduction.ll @@ -0,0 +1,29 @@ +; RUN: opt < %s -loop-vectorize -force-vector-unroll=1 -force-vector-width=4 -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-macosx10.8.0" +;CHECK: @foo +;CHECK: fadd <4 x float> +;CHECK: ret +define float @foo(float* nocapture %A, i32* nocapture %n) nounwind uwtable readonly ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] + %sum.04 = phi float [ 0.000000e+00, %entry ], [ %add, %for.body ] + %arrayidx = getelementptr inbounds float* %A, i64 %indvars.iv + %0 = load float* %arrayidx, align 4, !tbaa !0 + %add = fadd fast float %sum.04, %0 + %indvars.iv.next = add i64 %indvars.iv, 1 + %lftr.wideiv = trunc i64 %indvars.iv.next to i32 + %exitcond = icmp eq i32 %lftr.wideiv, 200 + br i1 %exitcond, label %for.end, label %for.body + +for.end: ; preds = %for.body + ret float %add +} + +!0 = metadata !{metadata !"float", metadata !1} +!1 = metadata !{metadata !"omnipotent char", metadata !2} +!2 = metadata !{metadata !"Simple C/C++ TBAA"} -- cgit v1.2.3