diff options
| author | Tobias Grosser <grosser@fim.uni-passau.de> | 2010-07-22 07:46:31 +0000 |
|---|---|---|
| committer | Tobias Grosser <grosser@fim.uni-passau.de> | 2010-07-22 07:46:31 +0000 |
| commit | f96b0063674e6bf72da5429bd49097e33c2325c7 (patch) | |
| tree | 6122b17b693e49a1fb9de1cabf099bb67d82414a /test/Analysis/RegionInfo/condition_simple.ll | |
| parent | 8a89a6ae9c3fb524cda60768e094ba481ac17be1 (diff) | |
Add new RegionInfo pass.
The RegionInfo pass detects single entry single exit regions in a function,
where a region is defined as any subgraph that is connected to the remaining
graph at only two spots.
Furthermore an hierarchical region tree is built.
Use it by calling "opt -regions analyze" or "opt -view-regions".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109089 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Analysis/RegionInfo/condition_simple.ll')
| -rw-r--r-- | test/Analysis/RegionInfo/condition_simple.ll | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/test/Analysis/RegionInfo/condition_simple.ll b/test/Analysis/RegionInfo/condition_simple.ll new file mode 100644 index 0000000000..19b154b647 --- /dev/null +++ b/test/Analysis/RegionInfo/condition_simple.ll @@ -0,0 +1,28 @@ +; RUN: opt -regions -analyze < %s | FileCheck %s +; RUN: opt -regions -stats < %s |& FileCheck -check-prefix=STAT %s +; RUN: opt -regions -print-region-style=bb -analyze < %s |& FileCheck -check-prefix=BBIT %s +; RUN: opt -regions -print-region-style=rn -analyze < %s |& FileCheck -check-prefix=RNIT %s + +define void @normal_condition() nounwind { +0: + br label %"1" +1: + br i1 1, label %"2", label %"3" +2: + br label %"4" +3: + br label %"4" +4: + ret void +} + +; CHECK-NOT: => +; CHECK: [0] 0 => <Function Return> +; CHECK-NEXT: [1] 1 => 4 +; STAT: 2 region - The # of regions + +; BBIT: 0, 1, 2, 4, 3, +; BBIT: 1, 2, 3, + +; RNIT: 0, 1 => 4, 4, +; RNIT: 1, 2, 3, |