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annotate test/CodeGen/X86/peephole-multiple-folds.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 803732b1fca8
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54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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1 ; RUN: llc -march=x86-64 -mcpu=core-avx2 < %s | FileCheck %s
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2 ;
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3 ; Test multiple peephole-time folds in a single basic block.
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4 ; <rdar://problem/16478629>
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5
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6 define <8 x float> @test_peephole_multi_fold(<8 x float>* %p1, <8 x float>* %p2) {
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7 entry:
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8 br label %loopbody
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9
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10 loopbody:
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11 ; CHECK: test_peephole_multi_fold:
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12 ; CHECK: vfmadd231ps ({{%rdi|%rcx}}),
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13 ; CHECK: vfmadd231ps ({{%rsi|%rdx}}),
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14 %vsum1 = phi <8 x float> [ %vsum1.next, %loopbody ], [ zeroinitializer, %entry ]
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15 %vsum2 = phi <8 x float> [ %vsum2.next, %loopbody ], [ zeroinitializer, %entry ]
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afa8332a0e37 LLVM 3.8
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16 %m1 = load <8 x float>, <8 x float>* %p1, align 1
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17 %m2 = load <8 x float>, <8 x float>* %p2, align 1
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18 %vsum1.next = tail call <8 x float> @llvm.x86.fma.vfmadd.ps.256(<8 x float> %m1, <8 x float> zeroinitializer, <8 x float> %vsum1)
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19 %vsum2.next = tail call <8 x float> @llvm.x86.fma.vfmadd.ps.256(<8 x float> %m2, <8 x float> zeroinitializer, <8 x float> %vsum2)
54457678186b LLVM 3.6
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20 %vsum1.next.1 = extractelement <8 x float> %vsum1.next, i32 0
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21 %c = fcmp oeq float %vsum1.next.1, 0.0
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22 br i1 %c, label %loopbody, label %loopexit
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23
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24 loopexit:
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25 %r = fadd <8 x float> %vsum1.next, %vsum2.next
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26 ret <8 x float> %r
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27 }
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29 declare <8 x float> @llvm.x86.fma.vfmadd.ps.256(<8 x float>, <8 x float>, <8 x float>)