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author | Pirama Arumuga Nainar <pirama@google.com> | 2015-05-06 11:46:36 -0700 |
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committer | Pirama Arumuga Nainar <pirama@google.com> | 2015-05-18 10:52:30 -0700 |
commit | 2c3e0051c31c3f5b2328b447eadf1cf9c4427442 (patch) | |
tree | c0104029af14e9f47c2ef58ca60e6137691f3c9b /test/Analysis/ScalarEvolution/latch-dominating-conditions.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/ScalarEvolution/latch-dominating-conditions.ll')
-rw-r--r-- | test/Analysis/ScalarEvolution/latch-dominating-conditions.ll | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/test/Analysis/ScalarEvolution/latch-dominating-conditions.ll b/test/Analysis/ScalarEvolution/latch-dominating-conditions.ll new file mode 100644 index 0000000..3f6f958 --- /dev/null +++ b/test/Analysis/ScalarEvolution/latch-dominating-conditions.ll @@ -0,0 +1,55 @@ +; RUN: opt -S -indvars < %s | FileCheck %s + +declare void @side_effect(i1) + +define void @latch_dominating_0(i8 %start) { +; CHECK-LABEL: latch_dominating_0 + entry: + %e = icmp slt i8 %start, 42 + br i1 %e, label %loop, label %exit + + loop: +; CHECK-LABEL: loop + %idx = phi i8 [ %start, %entry ], [ %idx.inc, %be ] + %idx.inc = add i8 %idx, 1 + %folds.to.true = icmp slt i8 %idx, 42 +; CHECK: call void @side_effect(i1 true) + call void @side_effect(i1 %folds.to.true) + %c0 = icmp slt i8 %idx.inc, 42 + br i1 %c0, label %be, label %exit + + be: +; CHECK: call void @side_effect(i1 true) + call void @side_effect(i1 %folds.to.true) + %c1 = icmp slt i8 %idx.inc, 100 + br i1 %c1, label %loop, label %exit + + exit: + ret void +} + +define void @latch_dominating_1(i8 %start) { +; CHECK-LABEL: latch_dominating_1 + entry: + %e = icmp slt i8 %start, 42 + br i1 %e, label %loop, label %exit + + loop: +; CHECK-LABEL: loop + %idx = phi i8 [ %start, %entry ], [ %idx.inc, %be ] + %idx.inc = add i8 %idx, 1 + %does.not.fold.to.true = icmp slt i8 %idx, 42 +; CHECK: call void @side_effect(i1 %does.not.fold.to.true) + call void @side_effect(i1 %does.not.fold.to.true) + %c0 = icmp slt i8 %idx.inc, 42 + br i1 %c0, label %be, label %be + + be: +; CHECK: call void @side_effect(i1 %does.not.fold.to.true) + call void @side_effect(i1 %does.not.fold.to.true) + %c1 = icmp slt i8 %idx.inc, 100 + br i1 %c1, label %loop, label %exit + + exit: + ret void +} |