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llvm-mirror/test/Transforms/SimplifyCFG/2009-01-18-PHIPropCrash.ll
Dan Gohman d7b00c4c8d Optimize test more.
llvm-svn: 86714
2009-11-10 21:02:18 +00:00

31 lines
780 B
LLVM

; RUN: opt < %s -simplifycfg -disable-output
; PR3016
; Dead use caused invariant violation.
define i32 @func_105(i1 %tmp5, i1 %tmp7) nounwind {
BB:
br i1 true, label %BB2, label %BB1
BB1: ; preds = %BB
br label %BB2
BB2: ; preds = %BB1, %BB
%tmp3 = phi i1 [ true, %BB ], [ false, %BB1 ] ; <i1> [#uses=1]
br label %BB9
BB9: ; preds = %BB11, %BB2
%tmp10 = phi i32 [ 0, %BB2 ], [ %tmp12, %BB11 ] ; <i32> [#uses=1]
br i1 %tmp5, label %BB11, label %BB13
BB11: ; preds = %BB13, %BB9
%tmp12 = phi i32 [ 0, %BB13 ], [ %tmp10, %BB9 ] ; <i32> [#uses=2]
br i1 %tmp3, label %BB9, label %BB20
BB13: ; preds = %BB13, %BB9
%tmp14 = phi i32 [ 0, %BB9 ], [ %tmp14, %BB13 ] ; <i32> [#uses=1]
br i1 %tmp7, label %BB13, label %BB11
BB20: ; preds = %BB11
ret i32 %tmp12
}