51 lines
		
	
	
		
			1.9 KiB
		
	
	
	
		
			LLVM
		
	
	
	
			
		
		
	
	
			51 lines
		
	
	
		
			1.9 KiB
		
	
	
	
		
			LLVM
		
	
	
	
; RUN: llc < %s -mcpu=generic -march=x86 -mattr=+sse4.2 -post-RA-scheduler=true | FileCheck %s
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; CHECK: paddd
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; Widen a v3i16 to v8i16 to do a vector add
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@.str = internal constant [4 x i8] c"%d \00"		; <[4 x i8]*> [#uses=1]
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@.str1 = internal constant [2 x i8] c"\0A\00"		; <[2 x i8]*> [#uses=1]
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define void @update(<3 x i16>* %dst, <3 x i16>* %src, i32 %n) nounwind {
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entry:
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	%dst.addr = alloca <3 x i16>*		; <<3 x i16>**> [#uses=2]
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	%src.addr = alloca <3 x i16>*		; <<3 x i16>**> [#uses=2]
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	%n.addr = alloca i32		; <i32*> [#uses=2]
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	%v = alloca <3 x i16>, align 8		; <<3 x i16>*> [#uses=1]
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	%i = alloca i32, align 4		; <i32*> [#uses=6]
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	store <3 x i16>* %dst, <3 x i16>** %dst.addr
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	store <3 x i16>* %src, <3 x i16>** %src.addr
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	store i32 %n, i32* %n.addr
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	store <3 x i16> < i16 1, i16 1, i16 1 >, <3 x i16>* %v
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	store i32 0, i32* %i
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	br label %forcond
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forcond:		; preds = %forinc, %entry
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	%tmp = load i32, i32* %i		; <i32> [#uses=1]
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	%tmp1 = load i32, i32* %n.addr		; <i32> [#uses=1]
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	%cmp = icmp slt i32 %tmp, %tmp1		; <i1> [#uses=1]
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	br i1 %cmp, label %forbody, label %afterfor
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forbody:		; preds = %forcond
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	%tmp2 = load i32, i32* %i		; <i32> [#uses=1]
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	%tmp3 = load <3 x i16>*, <3 x i16>** %dst.addr		; <<3 x i16>*> [#uses=1]
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	%arrayidx = getelementptr <3 x i16>, <3 x i16>* %tmp3, i32 %tmp2		; <<3 x i16>*> [#uses=1]
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	%tmp4 = load i32, i32* %i		; <i32> [#uses=1]
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	%tmp5 = load <3 x i16>*, <3 x i16>** %src.addr		; <<3 x i16>*> [#uses=1]
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	%arrayidx6 = getelementptr <3 x i16>, <3 x i16>* %tmp5, i32 %tmp4		; <<3 x i16>*> [#uses=1]
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	%tmp7 = load <3 x i16>, <3 x i16>* %arrayidx6		; <<3 x i16>> [#uses=1]
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	%add = add <3 x i16> %tmp7, < i16 1, i16 1, i16 1 >		; <<3 x i16>> [#uses=1]
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	store <3 x i16> %add, <3 x i16>* %arrayidx
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	br label %forinc
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forinc:		; preds = %forbody
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	%tmp8 = load i32, i32* %i		; <i32> [#uses=1]
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	%inc = add i32 %tmp8, 1		; <i32> [#uses=1]
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	store i32 %inc, i32* %i
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	br label %forcond
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afterfor:		; preds = %forcond
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	ret void
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}
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