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annotate llvm/test/Transforms/CodeGenPrepare/X86/multi-extension.ll @ 150:1d019706d866

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LLVM10
author anatofuz
date Thu, 13 Feb 2020 15:10:13 +0900
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children 1f2b6ac9f198
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150
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1 ; RUN: opt < %s -codegenprepare -S -mtriple=x86_64-unknown-unknown | FileCheck %s
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2 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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3 target triple = "x86_64-apple-macosx10.13.0"
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4
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5 declare void @bar(i64)
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6
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7 @b = global i16 0, align 2
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8
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9 ; This test case is extracted from PR38125.
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10 ; %or is reachable by both a sext and zext that are going to be promoted.
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11 ; It ensures correct operation on PromotedInsts.
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12
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13 ; CHECK: %promoted = trunc i32 %or to i16
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14 ; CHECK-NEXT: %c = sext i16 %promoted to i64
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15 define i32 @foo(i16 %kkk) {
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16 entry:
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17 %t4 = load i16, i16* @b, align 2
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18 %conv4 = zext i16 %t4 to i32
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19 %or = or i16 %kkk, %t4
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20 %c = sext i16 %or to i64
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21 call void @bar(i64 %c)
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22 %t5 = and i16 %or, 5
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23 %z = zext i16 %t5 to i32
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24 ret i32 %z
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25 }