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annotate test/CodeGen/X86/zext-shl.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 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 -march=x86 | FileCheck %s
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2
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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3 define i32 @t1(i8 zeroext %x) nounwind readnone ssp {
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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4 entry:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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5 ; CHECK-LABEL: t1:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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6 ; CHECK: shll
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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7 ; CHECK-NOT: movzwl
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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8 ; CHECK: ret
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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9 %0 = zext i8 %x to i16
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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10 %1 = shl i16 %0, 5
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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11 %2 = zext i16 %1 to i32
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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12 ret i32 %2
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13 }
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14
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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15 define i32 @t2(i8 zeroext %x) nounwind readnone ssp {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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16 entry:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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17 ; CHECK-LABEL: t2:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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18 ; CHECK: shrl
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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19 ; CHECK-NOT: movzwl
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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20 ; CHECK: ret
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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21 %0 = zext i8 %x to i16
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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22 %1 = lshr i16 %0, 3
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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23 %2 = zext i16 %1 to i32
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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24 ret i32 %2
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25 }