27 lines
		
	
	
		
			992 B
		
	
	
	
		
			LLVM
		
	
	
	
			
		
		
	
	
			27 lines
		
	
	
		
			992 B
		
	
	
	
		
			LLVM
		
	
	
	
; RUN: llc -verify-machineinstrs < %s -mtriple=powerpc-unknown-linux-gnu | FileCheck %s
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define i32 @foo() nounwind {
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entry:
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; CHECK: cntlzw 3, 4
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	%retval = alloca i32, align 4		; <i32*> [#uses=2]
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	%temp = alloca i32, align 4		; <i32*> [#uses=2]
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	%ctz_x = alloca i32, align 4		; <i32*> [#uses=3]
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	%ctz_c = alloca i32, align 4		; <i32*> [#uses=2]
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	store i32 61440, i32* %ctz_x
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	%tmp = load i32, i32* %ctz_x		; <i32> [#uses=1]
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	%tmp1 = sub i32 0, %tmp		; <i32> [#uses=1]
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	%tmp2 = load i32, i32* %ctz_x		; <i32> [#uses=1]
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	%tmp3 = and i32 %tmp1, %tmp2		; <i32> [#uses=1]
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	%tmp4 = call i32 asm "$(cntlz$|cntlzw$) $0,$1", "=r,r,~{dirflag},~{fpsr},~{flags}"( i32 %tmp3 )		; <i32> [#uses=1]
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	store i32 %tmp4, i32* %ctz_c
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	%tmp5 = load i32, i32* %ctz_c		; <i32> [#uses=1]
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	store i32 %tmp5, i32* %temp
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	%tmp6 = load i32, i32* %temp		; <i32> [#uses=1]
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	store i32 %tmp6, i32* %retval
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	br label %return
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return:		; preds = %entry
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	%retval2 = load i32, i32* %retval		; <i32> [#uses=1]
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	ret i32 %retval2
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}
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