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annotate test/Transforms/DeadArgElim/multdeadretval.ll @ 95:afa8332a0e37 LLVM3.8

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LLVM 3.8
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Tue, 13 Oct 2015 17:48:58 +0900
parents 95c75e76d11b
children
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95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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1 ; This test sees if return values (and arguments) are properly removed when they
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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2 ; are unused. All unused values are typed i16, so we can easily check. We also
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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3 ; run instcombine to fold insert/extractvalue chains and we run dce to clean up
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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4 ; any remaining dead stuff.
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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5 ; RUN: opt < %s -deadargelim -instcombine -dce -S | not grep i16
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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6
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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7 define internal {i16, i32} @test(i16 %DEADARG) {
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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8 %A = insertvalue {i16,i32} undef, i16 1, 0
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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9 %B = insertvalue {i16,i32} %A, i32 1001, 1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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10 ret {i16,i32} %B
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11 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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12
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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13 define internal {i32, i16} @test2() {
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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14 %DEAD = call i16 @test4()
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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15 %A = insertvalue {i32,i16} undef, i32 1, 0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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16 %B = insertvalue {i32,i16} %A, i16 %DEAD, 1
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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17 ret {i32,i16} %B
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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18 }
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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19
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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20 ; Dead argument, used to check if the second result of test2 is dead even when
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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21 ; it's used as a dead argument
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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22 define internal i32 @test3(i16 %A) {
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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23 %ret = call {i16, i32} @test( i16 %A ) ; <i32> [#uses=0]
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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24 %DEAD = extractvalue {i16, i32} %ret, 0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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25 %LIVE = extractvalue {i16, i32} %ret, 1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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26 ret i32 %LIVE
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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27 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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28
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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29 define internal i16 @test4() {
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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30 ret i16 0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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31 }
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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32
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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33 ; Multiple return values, multiple live return values
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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34 define internal {i32, i32, i16} @test5() {
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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35 %A = insertvalue {i32,i32,i16} undef, i32 1, 0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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36 %B = insertvalue {i32,i32,i16} %A, i32 2, 1
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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37 %C = insertvalue {i32,i32,i16} %B, i16 3, 2
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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38 ret {i32, i32, i16} %C
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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39 }
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parents:
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40
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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41 ; Nested return values
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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42 define internal {{i32}, {i16, i16}} @test6() {
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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43 %A = insertvalue {{i32}, {i16, i16}} undef, i32 1, 0, 0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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44 %B = insertvalue {{i32}, {i16, i16}} %A, i16 2, 1, 0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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45 %C = insertvalue {{i32}, {i16, i16}} %B, i16 3, 1, 1
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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46 ret {{i32}, {i16, i16}} %C
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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47 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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48
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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49 define i32 @main() {
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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50 %ret = call {i32, i16} @test2() ; <i32> [#uses=1]
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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51 %LIVE = extractvalue {i32, i16} %ret, 0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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52 %DEAD = extractvalue {i32, i16} %ret, 1
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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53 %Y = add i32 %LIVE, -123 ; <i32> [#uses=1]
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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54 %LIVE2 = call i32 @test3(i16 %DEAD) ; <i32> [#uses=1]
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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55 %Z = add i32 %LIVE2, %Y ; <i32> [#uses=1]
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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56 %ret1 = call { i32, i32, i16 } @test5 ()
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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57 %LIVE3 = extractvalue { i32, i32, i16} %ret1, 0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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58 %LIVE4 = extractvalue { i32, i32, i16} %ret1, 1
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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59 %DEAD2 = extractvalue { i32, i32, i16} %ret1, 2
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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60 %V = add i32 %LIVE3, %LIVE4
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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61 %W = add i32 %Z, %V
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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62 %ret2 = call { { i32 }, { i16, i16 } } @test6 ()
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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63 %LIVE5 = extractvalue { { i32 }, { i16, i16 } } %ret2, 0, 0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
64 %DEAD3 = extractvalue { { i32 }, { i16, i16 } } %ret2, 1, 0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
65 %DEAD4 = extractvalue { { i32 }, { i16, i16 } } %ret2, 1, 1
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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66 %Q = add i32 %W, %LIVE5
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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67 ret i32 %Q
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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68 }