21 lines
		
	
	
		
			457 B
		
	
	
	
		
			LLVM
		
	
	
	
			
		
		
	
	
			21 lines
		
	
	
		
			457 B
		
	
	
	
		
			LLVM
		
	
	
	
| ; RUN: opt < %s -basicaa -gvn -S | FileCheck %s
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| 
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| %t = type { i32 }
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| declare void @test1f(i8*)
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| 
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| define void @test1(%t* noalias %stuff ) {
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|     %p = getelementptr inbounds %t, %t* %stuff, i32 0, i32 0
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|     %before = load i32, i32* %p
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| 
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|     call void @test1f(i8* null)
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| 
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|     %after = load i32, i32* %p ; <--- This should be a dead load
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|     %sum = add i32 %before, %after
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| 
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|     store i32 %sum, i32* %p
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|     ret void
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| ; CHECK: load
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| ; CHECK-NOT: load
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| ; CHECK: ret void
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| }
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