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			44 lines
		
	
	
		
			704 B
		
	
	
	
		
			LLVM
		
	
	
	
	
	
			
		
		
	
	
			44 lines
		
	
	
		
			704 B
		
	
	
	
		
			LLVM
		
	
	
	
	
	
| ; Test CFG simplify removal of branch instructions.
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| ;
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| ; RUN: opt < %s -simplifycfg -S | FileCheck %s
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| 
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| define void @test1() {
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|         br label %1
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|         ret void
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| ; CHECK: @test1
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| ; CHECK-NEXT: ret void
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| }
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| 
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| define void @test2() {
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|         ret void
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|         ret void
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| ; CHECK: @test2
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| ; CHECK-NEXT: ret void
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| ; CHECK-NEXT: }
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| }
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| 
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| define void @test3(i1 %T) {
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|         br i1 %T, label %1, label %1
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|         ret void
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| ; CHECK: @test3
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| ; CHECK-NEXT: ret void
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| }
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| 
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| 
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| ; PR5795
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| define void @test5(i32 %A) {
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|   switch i32 %A, label %return [
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|     i32 2, label %1
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|     i32 10, label %2
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|   ]
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| 
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|   ret void
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| 
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|   ret void
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| 
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| return:                                           ; preds = %entry
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|   ret void
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| ; CHECK: @test5
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| ; CHECK-NEXT: ret void
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| }
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