mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 11:13:28 +01:00
51 lines
1.8 KiB
LLVM
51 lines
1.8 KiB
LLVM
; RUN: llc < %s -march=x86-64 -mattr=+sse4.2 | FileCheck %s
|
|
; CHECK: movdqa
|
|
; CHECK: pslld $2
|
|
; CHECK: psubd
|
|
|
|
; widen a v3i32 to v4i32 to do a vector multiple and a subtraction
|
|
|
|
define void @update(<3 x i32>* %dst, <3 x i32>* %src, i32 %n) nounwind {
|
|
entry:
|
|
%dst.addr = alloca <3 x i32>* ; <<3 x i32>**> [#uses=2]
|
|
%src.addr = alloca <3 x i32>* ; <<3 x i32>**> [#uses=2]
|
|
%n.addr = alloca i32 ; <i32*> [#uses=2]
|
|
%v = alloca <3 x i32>, align 16 ; <<3 x i32>*> [#uses=1]
|
|
%i = alloca i32, align 4 ; <i32*> [#uses=6]
|
|
store <3 x i32>* %dst, <3 x i32>** %dst.addr
|
|
store <3 x i32>* %src, <3 x i32>** %src.addr
|
|
store i32 %n, i32* %n.addr
|
|
store <3 x i32> < i32 1, i32 1, i32 1 >, <3 x i32>* %v
|
|
store i32 0, i32* %i
|
|
br label %forcond
|
|
|
|
forcond: ; preds = %forinc, %entry
|
|
%tmp = load i32* %i ; <i32> [#uses=1]
|
|
%tmp1 = load i32* %n.addr ; <i32> [#uses=1]
|
|
%cmp = icmp slt i32 %tmp, %tmp1 ; <i1> [#uses=1]
|
|
br i1 %cmp, label %forbody, label %afterfor
|
|
|
|
forbody: ; preds = %forcond
|
|
%tmp2 = load i32* %i ; <i32> [#uses=1]
|
|
%tmp3 = load <3 x i32>** %dst.addr ; <<3 x i32>*> [#uses=1]
|
|
%arrayidx = getelementptr <3 x i32>* %tmp3, i32 %tmp2 ; <<3 x i32>*> [#uses=1]
|
|
%tmp4 = load i32* %i ; <i32> [#uses=1]
|
|
%tmp5 = load <3 x i32>** %src.addr ; <<3 x i32>*> [#uses=1]
|
|
%arrayidx6 = getelementptr <3 x i32>* %tmp5, i32 %tmp4 ; <<3 x i32>*> [#uses=1]
|
|
%tmp7 = load <3 x i32>* %arrayidx6 ; <<3 x i32>> [#uses=1]
|
|
%mul = mul <3 x i32> %tmp7, < i32 4, i32 4, i32 4 > ; <<3 x i32>> [#uses=1]
|
|
%sub = sub <3 x i32> %mul, < i32 3, i32 3, i32 3 > ; <<3 x i32>> [#uses=1]
|
|
store <3 x i32> %sub, <3 x i32>* %arrayidx
|
|
br label %forinc
|
|
|
|
forinc: ; preds = %forbody
|
|
%tmp8 = load i32* %i ; <i32> [#uses=1]
|
|
%inc = add i32 %tmp8, 1 ; <i32> [#uses=1]
|
|
store i32 %inc, i32* %i
|
|
br label %forcond
|
|
|
|
afterfor: ; preds = %forcond
|
|
ret void
|
|
}
|
|
|