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| author | Pirama Arumuga Nainar <pirama@google.com> | 2015-05-06 11:46:36 -0700 |
|---|---|---|
| committer | Pirama Arumuga Nainar <pirama@google.com> | 2015-05-18 10:52:30 -0700 |
| commit | 2c3e0051c31c3f5b2328b447eadf1cf9c4427442 (patch) | |
| tree | c0104029af14e9f47c2ef58ca60e6137691f3c9b /test/Analysis/LoopAccessAnalysis/store-to-invariant-check2.ll | |
| parent | e1bc145815f4334641be19f1c45ecf85d25b6e5a (diff) | |
| download | external_llvm-2c3e0051c31c3f5b2328b447eadf1cf9c4427442.zip external_llvm-2c3e0051c31c3f5b2328b447eadf1cf9c4427442.tar.gz external_llvm-2c3e0051c31c3f5b2328b447eadf1cf9c4427442.tar.bz2 | |
Update aosp/master LLVM for rebase to r235153
Change-Id: I9bf53792f9fc30570e81a8d80d296c681d005ea7
(cherry picked from commit 0c7f116bb6950ef819323d855415b2f2b0aad987)
Diffstat (limited to 'test/Analysis/LoopAccessAnalysis/store-to-invariant-check2.ll')
| -rw-r--r-- | test/Analysis/LoopAccessAnalysis/store-to-invariant-check2.ll | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/test/Analysis/LoopAccessAnalysis/store-to-invariant-check2.ll b/test/Analysis/LoopAccessAnalysis/store-to-invariant-check2.ll new file mode 100644 index 0000000..4da0906 --- /dev/null +++ b/test/Analysis/LoopAccessAnalysis/store-to-invariant-check2.ll @@ -0,0 +1,54 @@ +; RUN: opt < %s -loop-accesses -analyze | FileCheck %s + +; Test to confirm LAA will not find store to invariant address. +; Inner loop has no store to invariant address. +; +; for(; i < itr; i++) { +; for(; j < itr; j++) { +; var2[j] = var2[j] + var1[i]; +; } +; } + +; CHECK: Store to invariant address was not found in loop. +; CHECK-NOT: Store to invariant address was found in loop. + + +define i32 @foo(i32* nocapture readonly %var1, i32* nocapture %var2, i32 %itr) #0 { +entry: + %cmp20 = icmp eq i32 %itr, 0 + br i1 %cmp20, label %for.end10, label %for.cond1.preheader + +for.cond1.preheader: ; preds = %entry, %for.inc8 + %indvars.iv23 = phi i64 [ %indvars.iv.next24, %for.inc8 ], [ 0, %entry ] + %j.022 = phi i32 [ %j.1.lcssa, %for.inc8 ], [ 0, %entry ] + %cmp218 = icmp ult i32 %j.022, %itr + br i1 %cmp218, label %for.body3.lr.ph, label %for.inc8 + +for.body3.lr.ph: ; preds = %for.cond1.preheader + %arrayidx5 = getelementptr inbounds i32, i32* %var1, i64 %indvars.iv23 + %0 = zext i32 %j.022 to i64 + br label %for.body3 + +for.body3: ; preds = %for.body3, %for.body3.lr.ph + %indvars.iv = phi i64 [ %0, %for.body3.lr.ph ], [ %indvars.iv.next, %for.body3 ] + %arrayidx = getelementptr inbounds i32, i32* %var2, i64 %indvars.iv + %1 = load i32, i32* %arrayidx, align 4 + %2 = load i32, i32* %arrayidx5, align 4 + %add = add nsw i32 %2, %1 + store i32 %add, i32* %arrayidx, align 4 + %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 + %lftr.wideiv = trunc i64 %indvars.iv.next to i32 + %exitcond = icmp eq i32 %lftr.wideiv, %itr + br i1 %exitcond, label %for.inc8, label %for.body3 + +for.inc8: ; preds = %for.body3, %for.cond1.preheader + %j.1.lcssa = phi i32 [ %j.022, %for.cond1.preheader ], [ %itr, %for.body3 ] + %indvars.iv.next24 = add nuw nsw i64 %indvars.iv23, 1 + %lftr.wideiv25 = trunc i64 %indvars.iv.next24 to i32 + %exitcond26 = icmp eq i32 %lftr.wideiv25, %itr + br i1 %exitcond26, label %for.end10, label %for.cond1.preheader + +for.end10: ; preds = %for.inc8, %entry + ret i32 undef +} + |