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| author | Nadav Rotem <nrotem@apple.com> | 2013-04-25 19:55:03 +0000 |
|---|---|---|
| committer | Nadav Rotem <nrotem@apple.com> | 2013-04-25 19:55:03 +0000 |
| commit | 975b1ddf60387139357c8cbbaeb613de5a39294f (patch) | |
| tree | 7ece302a6d037e4458a8436fa5e22ab6653ee9b3 /test/Transforms/LoopVectorize/runtime-check-readonly.ll | |
| parent | 4b5581530393e647d559360f8c6f229c05aca94f (diff) | |
| download | llvm-975b1ddf60387139357c8cbbaeb613de5a39294f.tar.gz llvm-975b1ddf60387139357c8cbbaeb613de5a39294f.tar.bz2 llvm-975b1ddf60387139357c8cbbaeb613de5a39294f.tar.xz | |
LoopVectorizer: No need to generate pointer disambiguation checks between readonly pointers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180570 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/LoopVectorize/runtime-check-readonly.ll')
| -rw-r--r-- | test/Transforms/LoopVectorize/runtime-check-readonly.ll | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/test/Transforms/LoopVectorize/runtime-check-readonly.ll b/test/Transforms/LoopVectorize/runtime-check-readonly.ll new file mode 100644 index 0000000000..4145d134fd --- /dev/null +++ b/test/Transforms/LoopVectorize/runtime-check-readonly.ll @@ -0,0 +1,36 @@ +; 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: add_ints +;CHECK: br +;CHECK: getelementptr +;CHECK-NEXT: getelementptr +;CHECK-NEXT: icmp uge +;CHECK-NEXT: icmp uge +;CHECK-NEXT: icmp uge +;CHECK-NEXT: icmp uge +;CHECK-NEXT: and +;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 +} |