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| author | Dan Gohman <gohman@apple.com> | 2010-03-09 23:46:50 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2010-03-09 23:46:50 +0000 |
| commit | 4ecbca558f8ee558dd0e84e079f16528fd9768f2 (patch) | |
| tree | c697d4a61b5d72c1a576cd7e5bcd4432b42eb674 /test/Analysis/ScalarEvolution | |
| parent | 0d9d70f0130ca609a1f41e0d90b3952751c110ab (diff) | |
| download | external_llvm-4ecbca558f8ee558dd0e84e079f16528fd9768f2.zip external_llvm-4ecbca558f8ee558dd0e84e079f16528fd9768f2.tar.gz external_llvm-4ecbca558f8ee558dd0e84e079f16528fd9768f2.tar.bz2 | |
Avoid analyzing instructions in blocks not reachable from the entry block.
They are lots of trouble, and they don't matter. This fixes PR6559.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98103 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Analysis/ScalarEvolution')
| -rw-r--r-- | test/Analysis/ScalarEvolution/unreachable-code.ll | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/test/Analysis/ScalarEvolution/unreachable-code.ll b/test/Analysis/ScalarEvolution/unreachable-code.ll new file mode 100644 index 0000000..51d9398 --- /dev/null +++ b/test/Analysis/ScalarEvolution/unreachable-code.ll @@ -0,0 +1,13 @@ +; RUN: opt < %s -analyze -scalar-evolution | FileCheck %s + +; CHECK: %t = add i64 %t, 1 +; CHECK: --> %t + +define void @foo() { +entry: + ret void + +dead: + %t = add i64 %t, 1 + ret void +} |