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Imported Upstream version 5.18.0.246

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Former-commit-id: 0c7ce5b1a7851e13f22acfd379b7f9fb304e4833
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Xamarin Public Jenkins (auto-signing)
2019-01-23 08:21:40 +00:00
parent a7724cd563
commit 279aa8f685
28482 changed files with 3866972 additions and 44 deletions
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28
external/llvm/test/CodeGen/Hexagon/tail-dup-subreg-abort.ll vendored Normal file
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; RUN: llc -march=hexagon -O2 -disable-cgp < %s
; REQUIRES: asserts
;
; Tail duplication can ignore subregister information on PHI nodes, and as
; a result, generate COPY instructions between registers of different classes.
; This could lead to HexagonInstrInfo::copyPhysReg aborting on an unhandled
; src/dst combination.
;
define i32 @foo(i32 %x, i64 %y) nounwind {
entry:
%a = icmp slt i32 %x, 0
%lo = trunc i64 %y to i32
br i1 %a, label %next, label %tail
tail:
br label %join
next:
%c = icmp eq i32 %x, 0
br i1 %c, label %b1, label %tail
b1:
%t1 = lshr i64 %y, 32
%hi = trunc i64 %t1 to i32
br label %join
join:
%val = phi i32 [ %hi, %b1 ], [ %lo, %tail ]
ret i32 %val
}