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| author | Devang Patel <dpatel@apple.com> | 2008-08-14 23:07:48 +0000 |
|---|---|---|
| committer | Devang Patel <dpatel@apple.com> | 2008-08-14 23:07:48 +0000 |
| commit | 488dc6732d1504d72936e07951fe7ec39d376c2c (patch) | |
| tree | 0611a3ad118ba73e89099e447868c38e89d13901 /test/Other | |
| parent | 7a7cf6b98465fb307e1edaababd2c03c1944c9b0 (diff) | |
| download | external_llvm-488dc6732d1504d72936e07951fe7ec39d376c2c.zip external_llvm-488dc6732d1504d72936e07951fe7ec39d376c2c.tar.gz external_llvm-488dc6732d1504d72936e07951fe7ec39d376c2c.tar.bz2 | |
The pass manager is not able to schedule -loop-deletion -loop-index-split.
The loop-deletion pass does not preserve dom frontier, which is required by
loop-index-split. When the PM checks dom frontier for loop-index-split, it has
already verified that lcssa is availalble. However, new dom frontier forces new
loop pass manager, which does not have lcssa yet.
The PM should recheck availability of required analysis passes in such cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54805 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Other')
| -rw-r--r-- | test/Other/2008-08-14-PassManager.ll | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/test/Other/2008-08-14-PassManager.ll b/test/Other/2008-08-14-PassManager.ll new file mode 100644 index 0000000..110f3806 --- /dev/null +++ b/test/Other/2008-08-14-PassManager.ll @@ -0,0 +1,5 @@ +; RUN: llvm-as < %s | opt -loop-deletion -loop-index-split -disable-output +; PR 2640 +define i32 @test1() { + ret i32 0; +} |