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53 lines
1.8 KiB
LLVM
53 lines
1.8 KiB
LLVM
; RUN: llc < %s -march=x86 -mattr=+sse42 -post-RA-scheduler=true | FileCheck %s
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; CHECK: paddw
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; CHECK: pextrw
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; CHECK: movd
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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* %i ; <i32> [#uses=1]
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%tmp1 = load 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* %i ; <i32> [#uses=1]
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%tmp3 = load <3 x i16>** %dst.addr ; <<3 x i16>*> [#uses=1]
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%arrayidx = getelementptr <3 x i16>* %tmp3, i32 %tmp2 ; <<3 x i16>*> [#uses=1]
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%tmp4 = load i32* %i ; <i32> [#uses=1]
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%tmp5 = load <3 x i16>** %src.addr ; <<3 x i16>*> [#uses=1]
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%arrayidx6 = getelementptr <3 x i16>* %tmp5, i32 %tmp4 ; <<3 x i16>*> [#uses=1]
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%tmp7 = load <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* %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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