forked from OSchip/llvm-project
				
			
		
			
				
	
	
		
			29 lines
		
	
	
		
			1.0 KiB
		
	
	
	
		
			LLVM
		
	
	
	
			
		
		
	
	
			29 lines
		
	
	
		
			1.0 KiB
		
	
	
	
		
			LLVM
		
	
	
	
| ; RUN: llc < %s -march=x86 | grep cmp | count 1
 | |
| ; PR964
 | |
| 
 | |
| define i8* @FindChar(i8* %CurPtr) {
 | |
| entry:
 | |
|         br label %bb
 | |
| 
 | |
| bb:             ; preds = %bb, %entry
 | |
|         %indvar = phi i32 [ 0, %entry ], [ %indvar.next, %bb ]          ; <i32> [#uses=3]
 | |
|         %CurPtr_addr.0.rec = bitcast i32 %indvar to i32         ; <i32> [#uses=1]
 | |
|         %gep.upgrd.1 = zext i32 %indvar to i64          ; <i64> [#uses=1]
 | |
|         %CurPtr_addr.0 = getelementptr i8* %CurPtr, i64 %gep.upgrd.1            ; <i8*> [#uses=1]
 | |
|         %tmp = load i8* %CurPtr_addr.0          ; <i8> [#uses=3]
 | |
|         %tmp2.rec = add i32 %CurPtr_addr.0.rec, 1               ; <i32> [#uses=1]
 | |
|         %tmp2 = getelementptr i8* %CurPtr, i32 %tmp2.rec                ; <i8*> [#uses=1]
 | |
|         %indvar.next = add i32 %indvar, 1               ; <i32> [#uses=1]
 | |
|         switch i8 %tmp, label %bb [
 | |
|                  i8 0, label %bb7
 | |
|                  i8 120, label %bb7
 | |
|         ]
 | |
| 
 | |
| bb7:            ; preds = %bb, %bb
 | |
|         tail call void @foo( i8 %tmp )
 | |
|         ret i8* %tmp2
 | |
| }
 | |
| 
 | |
| declare void @foo(i8)
 | |
| 
 |