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annotate test/CodeGen/PowerPC/ifcvt.ll @ 0:95c75e76d11b LLVM3.4

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LLVM 3.4
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Thu, 12 Dec 2013 13:56:28 +0900
parents
children 803732b1fca8
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95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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1 ; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 -verify-machineinstrs | FileCheck %s
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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2 target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f128:128:128-v128:128:128-n32:64"
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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3 target triple = "powerpc64-unknown-linux-gnu"
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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5 define i32 @test(i32 %a, i32 %b, i32 %c, i32 %d) {
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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6 entry:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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7 %sext82 = shl i32 %d, 16
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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8 %conv29 = ashr exact i32 %sext82, 16
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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9 %cmp = icmp slt i32 %sext82, 0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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10 br i1 %cmp, label %cond.true, label %cond.false
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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12 cond.true: ; preds = %sw.epilog
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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13 %and33 = and i32 %conv29, 32767
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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14 %sub34 = sub nsw i32 %a, %and33
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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15 br label %cond.end
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17 cond.false: ; preds = %sw.epilog
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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18 %add37 = add nsw i32 %conv29, %a
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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19 br label %cond.end
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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21 ; CHECK: @test
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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22 ; CHECK: add [[REG:[0-9]+]],
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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23 ; CHECK: subf [[REG2:[0-9]+]],
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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24 ; CHECK: isel {{[0-9]+}}, [[REG]], [[REG2]],
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26 cond.end: ; preds = %cond.false, %cond.true
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27 %cond = phi i32 [ %sub34, %cond.true ], [ %add37, %cond.false ]
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28 %sext83 = shl i32 %cond, 16
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29 %conv39 = ashr exact i32 %sext83, 16
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30 %add41 = sub i32 %b, %a
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31 %sub43 = add i32 %add41, %conv39
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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32 ret i32 %sub43
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33 }
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