From: Chris Lattner Date: Wed, 10 Aug 2005 00:33:01 +0000 (+0000) Subject: new testcase X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=3b7fd6647d825b88ba5c9580546408b730c867a8;p=oota-llvm.git new testcase git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22738 91177308-0d34-0410-b5e6-96231b3b80d8 --- diff --git a/test/Transforms/LoopStrengthReduce/phi_node_update_multiple_preds.ll b/test/Transforms/LoopStrengthReduce/phi_node_update_multiple_preds.ll new file mode 100644 index 00000000000..bf2346113db --- /dev/null +++ b/test/Transforms/LoopStrengthReduce/phi_node_update_multiple_preds.ll @@ -0,0 +1,29 @@ +; RUN: llvm-as < %s | opt -loop-reduce -disable-output +; LSR should not crash on this. + +fastcc void %loadloop() { +entry: + switch sbyte 0, label %shortcirc_next [ + sbyte 32, label %loopexit.2 + sbyte 59, label %loopexit.2 + ] + +shortcirc_next: ; preds = %no_exit.2, %entry + %indvar37 = phi uint [ 0, %entry ], [ %indvar.next38, %no_exit.2 ] ; [#uses=3] + %wp.2.4 = getelementptr sbyte* null, uint %indvar37 ; [#uses=1] + br bool false, label %loopexit.2, label %no_exit.2 + +no_exit.2: ; preds = %shortcirc_next + %wp.2.4.rec = cast uint %indvar37 to int ; [#uses=1] + %inc.1.rec = add int %wp.2.4.rec, 1 ; [#uses=1] + %inc.1 = getelementptr sbyte* null, int %inc.1.rec ; [#uses=2] + %indvar.next38 = add uint %indvar37, 1 ; [#uses=1] + switch sbyte 0, label %shortcirc_next [ + sbyte 32, label %loopexit.2 + sbyte 59, label %loopexit.2 + ] + +loopexit.2: ; preds = %no_exit.2, %no_exit.2, %shortcirc_next, %entry, %entry + %wp.2.7 = phi sbyte* [ null, %entry ], [ null, %entry ], [ %wp.2.4, %shortcirc_next ], [ %inc.1, %no_exit.2 ], [ %inc.1, %no_exit.2 ] ; [#uses=0] + ret void +}