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Imported Upstream version 5.18.0.225

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Former-commit-id: 10196d987d5fc5564b9d3b33b1fdf13190f4d0b5
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Xamarin Public Jenkins (auto-signing)
2018-12-21 19:01:49 +00:00
parent 32d52ae4ca
commit f32dbaf0b2
28477 changed files with 3866961 additions and 38 deletions
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45
external/llvm/test/Transforms/IRCE/bad-loop-structure.ll vendored Normal file
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; RUN: opt -S -irce -irce-print-changed-loops=true < %s | FileCheck %s
; CHECK-NOT: irce
define void @bad_loop_structure_increasing(i64 %iv.start) {
entry:
br label %for.body
for.body:
%indvars.iv = phi i64 [ %iv.start, %entry ], [ %indvars.iv.next, %for.inc ]
%cmp = icmp ult i64 %indvars.iv, 100
br i1 %cmp, label %switch.lookup, label %for.inc
switch.lookup:
br label %for.inc
for.inc:
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%cmp55 = icmp slt i64 %indvars.iv.next, 11
br i1 %cmp55, label %for.body, label %for.end
for.end:
ret void
}
define void @bad_loop_structure_decreasing(i64 %iv.start) {
entry:
br label %for.body
for.body:
%indvars.iv = phi i64 [ %iv.start, %entry ], [ %indvars.iv.next, %for.inc ]
%cmp = icmp ult i64 %indvars.iv, 100
br i1 %cmp, label %switch.lookup, label %for.inc
switch.lookup:
br label %for.inc
for.inc:
%indvars.iv.next = add nuw nsw i64 %indvars.iv, -1
%cmp55 = icmp sgt i64 %indvars.iv.next, 11
br i1 %cmp55, label %for.body, label %for.end
for.end:
ret void
}