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							; RUN: opt < %s -constprop -S | \
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							 | 
							
							; RUN:    grep "ret i32 -1"
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							 | 
							
							; RUN: opt < %s -constprop -S | \
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							 | 
							
							; RUN:    grep "ret i32 1"
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							 | 
							
							
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							 | 
							
							define i32 @test1() {
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							 | 
							
							        %A = sext i1 true to i32                ; <i32> [#uses=1]
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							 | 
							
							        ret i32 %A
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							 | 
							
							}
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							 | 
							
							
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							 | 
							
							define i32 @test2() {
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							 | 
							
							        %A = zext i1 true to i32                ; <i32> [#uses=1]
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							 | 
							
							        ret i32 %A
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							 | 
							
							}
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