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			18 lines
		
	
	
		
			463 B
		
	
	
	
		
			LLVM
		
	
	
	
	
	
			
		
		
	
	
			18 lines
		
	
	
		
			463 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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| 
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| ; RUN: llvm-upgrade < %s | llvm-as | opt -indvars | llvm-dis | grep indvar
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| 
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| int %test(bool %C) {
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| 	br label %Loop
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| Loop:
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| 	%IV = phi uint [1, %0], [%IV2, %BE1], [%IV2, %BE2]
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| 	%IV2 = add uint %IV, 2
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| 	br bool %C, label %BE1, label %BE2
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| BE1:
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| 	br label %Loop
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| BE2:
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| 	br label %Loop
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| }
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