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annotate test/CodeGen/PowerPC/swaps-le-3.ll @ 100:7d135dc70f03 LLVM 3.9

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LLVM 3.9
author Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
date Tue, 26 Jan 2016 22:53:40 +0900
parents afa8332a0e37
children 1172e4bd9c6f
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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1 ; RUN: llc -mcpu=pwr8 -mtriple=powerpc64le-unknown-linux-gnu -O3 < %s | FileCheck %s
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2
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3 ; This test verifies that VSX swap optimization works for the
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4 ; doubleword splat idiom.
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5
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6 @a = external global <2 x double>, align 16
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7 @b = external global <2 x double>, align 16
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8
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9 define void @test(double %s) {
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10 entry:
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11 %0 = insertelement <2 x double> undef, double %s, i32 0
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12 %1 = shufflevector <2 x double> %0, <2 x double> undef, <2 x i32> zeroinitializer
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13 %2 = load <2 x double>, <2 x double>* @a, align 16
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14 %3 = fadd <2 x double> %0, %2
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15 store <2 x double> %3, <2 x double>* @b, align 16
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16 ret void
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17 }
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18
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19 ; CHECK-LABEL: @test
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20 ; CHECK-DAG: xxspltd
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21 ; CHECK-DAG: lxvd2x
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22 ; CHECK: xvadddp
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23 ; CHECK: stxvd2x
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24 ; CHECK-NOT: xxswapd