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Diffstat (limited to 'test/Transforms/LoopSimplify/2003-04-25-AssertFail.ll')
| -rw-r--r-- | test/Transforms/LoopSimplify/2003-04-25-AssertFail.ll | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/test/Transforms/LoopSimplify/2003-04-25-AssertFail.ll b/test/Transforms/LoopSimplify/2003-04-25-AssertFail.ll new file mode 100644 index 000000000000..70445fb8f8c1 --- /dev/null +++ b/test/Transforms/LoopSimplify/2003-04-25-AssertFail.ll @@ -0,0 +1,20 @@ +; This testcase exposed a problem with the loop identification pass (LoopInfo). +; Basically, it was incorrectly calculating the loop nesting information. +; +; RUN: llvm-as < %s | opt -loopsimplify + +define i32 @yylex() { + br label %loopentry.0 +loopentry.0: ; preds = %else.4, %0 + br label %loopexit.2 +loopexit.2: ; preds = %else.4, %loopexit.2, %loopentry.0 + br i1 false, label %loopexit.2, label %else.4 +yy_find_action: ; preds = %else.4 + br label %else.4 +else.4: ; preds = %yy_find_action, %loopexit.2 + switch i32 0, label %loopexit.2 [ + i32 2, label %yy_find_action + i32 0, label %loopentry.0 + ] +} + |