forked from OSchip/llvm-project
				
			
		
			
				
	
	
		
			15 lines
		
	
	
		
			376 B
		
	
	
	
		
			LLVM
		
	
	
	
			
		
		
	
	
			15 lines
		
	
	
		
			376 B
		
	
	
	
		
			LLVM
		
	
	
	
| ; RUN: opt < %s -basicaa -gvn -instcombine -S | FileCheck %s
 | |
| 
 | |
| ; BasicAA was incorrectly concluding that P1 and P2 didn't conflict!
 | |
| 
 | |
| define i32 @test(i32 *%Ptr, i64 %V) {
 | |
| ; CHECK: sub i32 %X, %Y
 | |
|   %P2 = getelementptr i32* %Ptr, i64 1
 | |
|   %P1 = getelementptr i32* %Ptr, i64 %V
 | |
|   %X = load i32* %P1
 | |
|   store i32 5, i32* %P2
 | |
|   %Y = load i32* %P1
 | |
|   %Z = sub i32 %X, %Y
 | |
|   ret i32 %Z
 | |
| }
 |