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Imported Upstream version 5.18.0.161

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Former-commit-id: 4db48158d3a35497b8f118ab21b5f08ac3d86d98
This commit is contained in:
Xamarin Public Jenkins (auto-signing)
2018-10-19 08:34:24 +00:00
parent 37fbf886a3
commit e19d552987
28702 changed files with 3868076 additions and 803 deletions
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28
external/llvm/test/Transforms/IndVarSimplify/masked-iv.ll vendored Normal file
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@@ -0,0 +1,28 @@
; RUN: opt < %s -indvars -S | FileCheck %s
; Indvars should do the IV arithmetic in the canonical IV type (i64),
; and only use one truncation.
define void @foo(i64* %A, i64* %B, i64 %n, i64 %a, i64 %s) nounwind {
; CHECK-LABEL: @foo(
; CHECK-NOT: trunc
; CHECK: and
; CHECK-NOT: and
entry:
%t0 = icmp sgt i64 %n, 0 ; <i1> [#uses=1]
br i1 %t0, label %bb.preheader, label %return
bb.preheader: ; preds = %entry
br label %bb
bb: ; preds = %bb, %bb.preheader
%i.01 = phi i64 [ %t6, %bb ], [ %a, %bb.preheader ] ; <i64> [#uses=3]
%t1 = and i64 %i.01, 255 ; <i64> [#uses=1]
%t2 = getelementptr i64, i64* %A, i64 %t1 ; <i64*> [#uses=1]
store i64 %i.01, i64* %t2, align 8
%t6 = add i64 %i.01, %s ; <i64> [#uses=1]
br label %bb
return: ; preds = %entry
ret void
}