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new testcase

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22738 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-08-10 00:33:01 +00:00
parent 87265abffc
commit 3b7fd6647d
1 changed files with 29 additions and 0 deletions
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29
test/Transforms/LoopStrengthReduce/phi_node_update_multiple_preds.ll Normal file
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; 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 ] ; <uint> [#uses=3]
%wp.2.4 = getelementptr sbyte* null, uint %indvar37 ; <sbyte*> [#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 ; <int> [#uses=1]
%inc.1.rec = add int %wp.2.4.rec, 1 ; <int> [#uses=1]
%inc.1 = getelementptr sbyte* null, int %inc.1.rec ; <sbyte*> [#uses=2]
%indvar.next38 = add uint %indvar37, 1 ; <uint> [#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 ] ; <sbyte*> [#uses=0]
ret void
}