diff options
| author | Stephen Hines <srhines@google.com> | 2014-12-01 14:51:49 -0800 |
|---|---|---|
| committer | Stephen Hines <srhines@google.com> | 2014-12-02 16:08:10 -0800 |
| commit | 37ed9c199ca639565f6ce88105f9e39e898d82d0 (patch) | |
| tree | 8fb36d3910e3ee4c4e1b7422f4f017108efc52f5 /test/Transforms/InstCombine/assume-loop-align.ll | |
| parent | d2327b22152ced7bc46dc629fc908959e8a52d03 (diff) | |
| download | external_llvm-37ed9c199ca639565f6ce88105f9e39e898d82d0.tar.gz external_llvm-37ed9c199ca639565f6ce88105f9e39e898d82d0.tar.bz2 external_llvm-37ed9c199ca639565f6ce88105f9e39e898d82d0.zip | |
Update aosp/master LLVM for rebase to r222494.
Change-Id: Ic787f5e0124df789bd26f3f24680f45e678eef2d
Diffstat (limited to 'test/Transforms/InstCombine/assume-loop-align.ll')
| -rw-r--r-- | test/Transforms/InstCombine/assume-loop-align.ll | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/assume-loop-align.ll b/test/Transforms/InstCombine/assume-loop-align.ll new file mode 100644 index 0000000000..19190de2cd --- /dev/null +++ b/test/Transforms/InstCombine/assume-loop-align.ll @@ -0,0 +1,47 @@ +; RUN: opt -domtree -instcombine -loops -S < %s | FileCheck %s +; Note: The -loops above can be anything that requires the domtree, and is +; necessary to work around a pass-manager bug. + +target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" +target triple = "x86_64-unknown-linux-gnu" + +; Function Attrs: nounwind uwtable +define void @foo(i32* %a, i32* %b) #0 { +entry: + %ptrint = ptrtoint i32* %a to i64 + %maskedptr = and i64 %ptrint, 63 + %maskcond = icmp eq i64 %maskedptr, 0 + tail call void @llvm.assume(i1 %maskcond) + %ptrint1 = ptrtoint i32* %b to i64 + %maskedptr2 = and i64 %ptrint1, 63 + %maskcond3 = icmp eq i64 %maskedptr2, 0 + tail call void @llvm.assume(i1 %maskcond3) + br label %for.body + +; CHECK-LABEL: @foo +; CHECK: load i32* {{.*}} align 64 +; CHECK: store i32 {{.*}} align 64 +; CHECK: ret + +for.body: ; preds = %entry, %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 + %add = add nsw i32 %0, 1 + %arrayidx5 = getelementptr inbounds i32* %a, i64 %indvars.iv + store i32 %add, i32* %arrayidx5, align 4 + %indvars.iv.next = add nuw nsw i64 %indvars.iv, 16 + %1 = trunc i64 %indvars.iv.next to i32 + %cmp = icmp slt i32 %1, 1648 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + +; Function Attrs: nounwind +declare void @llvm.assume(i1) #1 + +attributes #0 = { nounwind uwtable } +attributes #1 = { nounwind } + |