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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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29
external/llvm/test/Transforms/IndVarSimplify/lftr-udiv-tripcount.ll vendored Normal file
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; RUN: opt < %s -indvars -S | FileCheck %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
; It is okay to do LFTR on this loop even though the trip count is a
; division because in this case the division can be optimized to a
; shift.
define void @foo(i8* %a, i8 %n) nounwind uwtable ssp {
; CHECK-LABEL: @foo(
entry:
%e = icmp sgt i8 %n, 3
br i1 %e, label %loop, label %exit
loop:
; CHECK-LABEL: loop:
%i = phi i8 [ 0, %entry ], [ %i.inc, %loop ]
%i1 = phi i8 [ 0, %entry ], [ %i1.inc, %loop ]
%i.inc = add nsw i8 %i, 4
%i1.inc = add i8 %i1, 1
store volatile i8 0, i8* %a
%c = icmp slt i8 %i, %n
; CHECK-LABEL: %exitcond = icmp ne i8 %i1.inc
br i1 %c, label %loop, label %exit
exit:
; CHECK-LABEL: exit:
ret void
}