mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-28 19:31:58 +00:00
ee3f7de62e
for (i = 0; i < N; ++i) A[i * Stride1] += B[i * Stride2]; We take loops like this and check that the symbolic strides 'Strided1/2' are one and drop to the scalar loop if they are not. This is currently disabled by default and hidden behind the flag 'enable-mem-access-versioning'. radar://13075509 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198950 91177308-0d34-0410-b5e6-96231b3b80d8
39 lines
1.3 KiB
LLVM
39 lines
1.3 KiB
LLVM
; 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-LABEL: @add_ints(
|
|
;CHECK: br
|
|
;CHECK: getelementptr
|
|
;CHECK-NEXT: getelementptr
|
|
;CHECK-DAG: icmp uge
|
|
;CHECK-DAG: icmp uge
|
|
;CHECK-DAG: icmp uge
|
|
;CHECK-DAG: icmp uge
|
|
;CHECK-DAG: and
|
|
;CHECK-DAG: and
|
|
;CHECK: br
|
|
;CHECK: ret
|
|
define void @add_ints(i32* nocapture %A, i32* nocapture %B, i32* nocapture %C) {
|
|
entry:
|
|
br label %for.body
|
|
|
|
for.body:
|
|
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
|
|
%arrayidx = getelementptr inbounds i32* %B, i64 %indvars.iv
|
|
%0 = load i32* %arrayidx, align 4
|
|
%arrayidx2 = getelementptr inbounds i32* %C, i64 %indvars.iv
|
|
%1 = load i32* %arrayidx2, align 4
|
|
%add = add nsw i32 %1, %0
|
|
%arrayidx4 = getelementptr inbounds i32* %A, i64 %indvars.iv
|
|
store i32 %add, i32* %arrayidx4, 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, 200
|
|
br i1 %exitcond, label %for.end, label %for.body
|
|
|
|
for.end:
|
|
ret void
|
|
}
|