Mercurial > hg > CbC > CbC_llvm
comparison llvm/test/Transforms/CodeGenPrepare/X86/multi-extension.ll @ 150:1d019706d866
LLVM10
| author | anatofuz |
|---|---|
| date | Thu, 13 Feb 2020 15:10:13 +0900 |
| parents | |
| children | 1f2b6ac9f198 |
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| 147:c2174574ed3a | 150:1d019706d866 |
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| 1 ; RUN: opt < %s -codegenprepare -S -mtriple=x86_64-unknown-unknown | FileCheck %s | |
| 2 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" | |
| 3 target triple = "x86_64-apple-macosx10.13.0" | |
| 4 | |
| 5 declare void @bar(i64) | |
| 6 | |
| 7 @b = global i16 0, align 2 | |
| 8 | |
| 9 ; This test case is extracted from PR38125. | |
| 10 ; %or is reachable by both a sext and zext that are going to be promoted. | |
| 11 ; It ensures correct operation on PromotedInsts. | |
| 12 | |
| 13 ; CHECK: %promoted = trunc i32 %or to i16 | |
| 14 ; CHECK-NEXT: %c = sext i16 %promoted to i64 | |
| 15 define i32 @foo(i16 %kkk) { | |
| 16 entry: | |
| 17 %t4 = load i16, i16* @b, align 2 | |
| 18 %conv4 = zext i16 %t4 to i32 | |
| 19 %or = or i16 %kkk, %t4 | |
| 20 %c = sext i16 %or to i64 | |
| 21 call void @bar(i64 %c) | |
| 22 %t5 = and i16 %or, 5 | |
| 23 %z = zext i16 %t5 to i32 | |
| 24 ret i32 %z | |
| 25 } |