Mercurial > hg > CbC > CbC_llvm

annotate test/Transforms/InstCombine/distribute.ll @ 147:c2174574ed3a

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LLVM 10
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Wed, 14 Aug 2019 16:55:33 +0900
parents 54457678186b
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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77
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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1 ; RUN: opt < %s -instcombine -S | FileCheck %s
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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2
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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3 define i32 @factorize(i32 %x, i32 %y) {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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4 ; CHECK-LABEL: @factorize(
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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5 ; (X | 1) & (X | 2) -> X | (1 & 2) -> X
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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6 %l = or i32 %x, 1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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7 %r = or i32 %x, 2
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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8 %z = and i32 %l, %r
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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9 ret i32 %z
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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10 ; CHECK: ret i32 %x
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11 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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12
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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13 define i32 @factorize2(i32 %x) {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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14 ; CHECK-LABEL: @factorize2(
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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15 ; 3*X - 2*X -> X
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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16 %l = mul i32 3, %x
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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17 %r = mul i32 2, %x
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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18 %z = sub i32 %l, %r
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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19 ret i32 %z
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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20 ; CHECK: ret i32 %x
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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21 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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22
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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23 define i32 @factorize3(i32 %x, i32 %a, i32 %b) {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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24 ; CHECK-LABEL: @factorize3(
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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25 ; (X | (A|B)) & (X | B) -> X | ((A|B) & B) -> X | B
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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26 %aORb = or i32 %a, %b
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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27 %l = or i32 %x, %aORb
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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28 %r = or i32 %x, %b
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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29 %z = and i32 %l, %r
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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30 ret i32 %z
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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31 ; CHECK: %z = or i32 %b, %x
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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32 ; CHECK: ret i32 %z
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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33 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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34
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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35 define i32 @factorize4(i32 %x, i32 %y) {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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36 ; CHECK-LABEL: @factorize4(
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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37 ; ((Y << 1) * X) - (X * Y) -> (X * (Y * 2 - Y)) -> (X * Y)
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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38 %sh = shl i32 %y, 1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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39 %ml = mul i32 %sh, %x
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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40 %mr = mul i32 %x, %y
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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41 %s = sub i32 %ml, %mr
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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42 ret i32 %s
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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43 ; CHECK: %s = mul i32 %y, %x
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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44 ; CHECK: ret i32 %s
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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45 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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46
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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47 define i32 @factorize5(i32 %x, i32 %y) {
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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48 ; CHECK-LABEL: @factorize5(
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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49 ; ((Y * 2) * X) - (X * Y) -> (X * Y)
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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50 %sh = mul i32 %y, 2
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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51 %ml = mul i32 %sh, %x
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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52 %mr = mul i32 %x, %y
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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53 %s = sub i32 %ml, %mr
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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54 ret i32 %s
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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55 ; CHECK: %s = mul i32 %y, %x
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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56 ; CHECK: ret i32 %s
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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57 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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58
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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59 define i32 @expand(i32 %x) {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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60 ; CHECK-LABEL: @expand(
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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61 ; ((X & 1) | 2) & 1 -> ((X & 1) & 1) | (2 & 1) -> (X & 1) | 0 -> X & 1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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62 %a = and i32 %x, 1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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63 %b = or i32 %a, 2
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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64 %c = and i32 %b, 1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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65 ret i32 %c
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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66 ; CHECK: %a = and i32 %x, 1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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67 ; CHECK: ret i32 %a
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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68 }