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			25 lines
		
	
	
		
			656 B
		
	
	
	
		
			LLVM
		
	
	
	
	
	
			
		
		
	
	
			25 lines
		
	
	
		
			656 B
		
	
	
	
		
			LLVM
		
	
	
	
	
	
| ; RUN: opt < %s -loop-unroll -S | FileCheck %s
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| 
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| 
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| ; This should not unroll since the address of the loop header is taken.
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| 
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| ; CHECK: @test1
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| ; CHECK: store i8* blockaddress(@test1, %l1), i8** %P
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| ; CHECK: l1:
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| ; CHECK-NEXT: phi i32
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| ; rdar://8287027
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| define i32 @test1(i8** %P) nounwind ssp {
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| entry:
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|   store i8* blockaddress(@test1, %l1), i8** %P
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|   br label %l1
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| 
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| l1:                                               ; preds = %l1, %entry
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|   %x.0 = phi i32 [ 0, %entry ], [ %inc, %l1 ]
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|   %inc = add nsw i32 %x.0, 1
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|   %exitcond = icmp eq i32 %inc, 3
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|   br i1 %exitcond, label %l2, label %l1
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| 
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| l2:                                               ; preds = %l1
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|   ret i32 0
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| }
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