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| 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_complicated_2.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_complicated_2.ll')
| -rw-r--r-- | test/Analysis/RegionInfo/condition_complicated_2.ll | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/test/Analysis/RegionInfo/condition_complicated_2.ll b/test/Analysis/RegionInfo/condition_complicated_2.ll new file mode 100644 index 0000000000..5fa940a61e --- /dev/null +++ b/test/Analysis/RegionInfo/condition_complicated_2.ll @@ -0,0 +1,44 @@ +; 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 internal fastcc void @compress() nounwind { +end33: + br i1 1, label %end124, label %lor.lhs.false95 + +lor.lhs.false95: + br i1 1, label %then107, label %end172 + +then107: + br i1 1, label %end124, label %then113 + +then113: + br label %end124 + +end124: + br label %exit + +end172: + br label %exit + + +exit: + unreachable + + +} +; CHECK-NOT: => +; CHECK: [0] end33 => <Function Return> +; CHECK-NEXT: [1] end33 => exit +; CHECK-NEXT: [2] then107 => end124 + +; STAT: 3 region - The # of regions + +; BBIT: end33, end124, exit, lor.lhs.false95, then107, then113, end172, +; BBIT: end33, end124, lor.lhs.false95, then107, then113, end172, +; BBIT: then107, then113, + +; RNIT: end33 => exit, exit, +; RNIT: end33, end124, lor.lhs.false95, then107 => end124, end172, +; RNIT: then107, then113, |