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Imported Upstream version 5.18.0.167

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Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a
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Xamarin Public Jenkins (auto-signing)
2018-10-20 08:25:10 +00:00
parent e19d552987
commit b084638f15
28489 changed files with 184 additions and 3866856 deletions
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33
external/llvm/test/Transforms/LoopLoadElim/backward.ll vendored
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@ -1,33 +0,0 @@
; RUN: opt -loop-load-elim -S < %s | FileCheck %s
; RUN: opt -passes=loop-load-elim -S < %s | FileCheck %s
; Simple st->ld forwarding derived from a lexical backward dep.
;
; for (unsigned i = 0; i < 100; i++)
; A[i+1] = A[i] + B[i];
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
define void @f(i32* noalias nocapture %A, i32* noalias nocapture readonly %B, i64 %N) {
entry:
; CHECK: %load_initial = load i32, i32* %A
br label %for.body
for.body: ; preds = %for.body, %entry
; CHECK: %store_forwarded = phi i32 [ %load_initial, %entry ], [ %add, %for.body ]
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
%arrayidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
%load = load i32, i32* %arrayidx, align 4
%arrayidx2 = getelementptr inbounds i32, i32* %B, i64 %indvars.iv
%load_1 = load i32, i32* %arrayidx2, align 4
; CHECK: %add = add i32 %load_1, %store_forwarded
%add = add i32 %load_1, %load
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%arrayidx_next = getelementptr inbounds i32, i32* %A, i64 %indvars.iv.next
store i32 %add, i32* %arrayidx_next, align 4
%exitcond = icmp eq i64 %indvars.iv.next, %N
br i1 %exitcond, label %for.end, label %for.body
for.end: ; preds = %for.body
ret void
}