llvm/test/Transforms/LoopStrengthReduce/phi_node_update_multiple_preds.ll
Dan Gohman f2f6ce65b7 Change tests from "opt %s" to "opt < %s" so that opt doesn't see the
input filename so that opt doesn't print the input filename in the
output so that grep lines in the tests don't unintentionally match
strings in the input filename.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81537 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-11 18:01:28 +00:00

29 lines
1.1 KiB
LLVM

; RUN: opt < %s -loop-reduce -disable-output
; LSR should not crash on this.
define fastcc void @loadloop() {
entry:
switch i8 0, label %shortcirc_next [
i8 32, label %loopexit.2
i8 59, label %loopexit.2
]
shortcirc_next: ; preds = %no_exit.2, %entry
%indvar37 = phi i32 [ 0, %entry ], [ %indvar.next38, %no_exit.2 ] ; <i32> [#uses=3]
%gep.upgrd.1 = zext i32 %indvar37 to i64 ; <i64> [#uses=1]
%wp.2.4 = getelementptr i8* null, i64 %gep.upgrd.1 ; <i8*> [#uses=1]
br i1 false, label %loopexit.2, label %no_exit.2
no_exit.2: ; preds = %shortcirc_next
%wp.2.4.rec = bitcast i32 %indvar37 to i32 ; <i32> [#uses=1]
%inc.1.rec = add i32 %wp.2.4.rec, 1 ; <i32> [#uses=1]
%inc.1 = getelementptr i8* null, i32 %inc.1.rec ; <i8*> [#uses=2]
%indvar.next38 = add i32 %indvar37, 1 ; <i32> [#uses=1]
switch i8 0, label %shortcirc_next [
i8 32, label %loopexit.2
i8 59, label %loopexit.2
]
loopexit.2: ; preds = %no_exit.2, %no_exit.2, %shortcirc_next, %entry, %entry
%wp.2.7 = phi i8* [ null, %entry ], [ null, %entry ], [ %wp.2.4, %shortcirc_next ], [ %inc.1, %no_exit.2 ], [ %inc.1, %no_exit.2 ] ; <i8*> [#uses=0]
ret void
}