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	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
		
			
				
	
	
		
			21 lines
		
	
	
		
			574 B
		
	
	
	
		
			LLVM
		
	
	
	
	
	
			
		
		
	
	
			21 lines
		
	
	
		
			574 B
		
	
	
	
		
			LLVM
		
	
	
	
	
	
; The loop canonicalization pass should guarantee that there is one backedge 
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; for all loops.  This allows the -indvars pass to recognize the %IV 
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; induction variable in this testcase.
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; RUN: opt < %s -indvars -S | grep indvar
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define i32 @test(i1 %C) {
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; <label>:0
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	br label %Loop
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Loop:		; preds = %BE2, %BE1, %0
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	%IV = phi i32 [ 1, %0 ], [ %IV2, %BE1 ], [ %IV2, %BE2 ]		; <i32> [#uses=2]
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	store i32 %IV, i32* null
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	%IV2 = add i32 %IV, 2		; <i32> [#uses=2]
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	br i1 %C, label %BE1, label %BE2
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BE1:		; preds = %Loop
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	br label %Loop
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BE2:		; preds = %Loop
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	br label %Loop
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}
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