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[LoopVersioningLICM] Add test coverage for llvm.loop.licm_versioning.disable

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In the next change, I am generalizing the function
findStringMetadataForLoop and I want to make sure I don't break this.
Looks like there was no coverage for this so far.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@267182 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Adam Nemet 2016-04-22 18:34:50 +00:00
parent a9389fc718
commit bc86912f3c
1 changed files with 104 additions and 0 deletions
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104
test/Transforms/LoopVersioningLICM/metadata.ll Normal file
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; RUN: opt < %s -O1 -S -loop-versioning-licm -licm 2>&1 | FileCheck %s
; CHECK-LABEL: @without_metadata(
define i32 @without_metadata(i32* nocapture %var1, i32* nocapture readnone %var2, i32* nocapture %var3, i32 %itr) #0 {
entry:
%cmp14 = icmp eq i32 %itr, 0
br i1 %cmp14, label %for.end13, label %for.cond1.preheader.preheader
for.cond1.preheader.preheader: ; preds = %entry
br label %for.cond1.preheader
for.cond1.preheader: ; preds = %for.cond1.preheader.preheader, %for.inc11
%j.016 = phi i32 [ %j.1.lcssa, %for.inc11 ], [ 0, %for.cond1.preheader.preheader ]
%i.015 = phi i32 [ %inc12, %for.inc11 ], [ 0, %for.cond1.preheader.preheader ]
%cmp212 = icmp ult i32 %j.016, %itr
br i1 %cmp212, label %for.body3.lr.ph, label %for.inc11
for.body3.lr.ph: ; preds = %for.cond1.preheader
%add = add i32 %i.015, %itr
%idxprom6 = zext i32 %i.015 to i64
%arrayidx7 = getelementptr inbounds i32, i32* %var3, i64 %idxprom6
br label %for.body3
for.body3: ; preds = %for.body3.lr.ph, %for.body3
%j.113 = phi i32 [ %j.016, %for.body3.lr.ph ], [ %inc, %for.body3 ]
%idxprom = zext i32 %j.113 to i64
%arrayidx = getelementptr inbounds i32, i32* %var1, i64 %idxprom
; CHECK: store i32 %add, i32* %arrayidx, align 4, !alias.scope {{.*}}, !noalias {{.*}}
store i32 %add, i32* %arrayidx, align 4
%0 = load i32, i32* %arrayidx7, align 4
%add8 = add nsw i32 %0, %add
store i32 %add8, i32* %arrayidx7, align 4
%inc = add nuw i32 %j.113, 1
%cmp2 = icmp ult i32 %inc, %itr
br i1 %cmp2, label %for.body3, label %for.inc11.loopexit
for.inc11.loopexit: ; preds = %for.body3
br label %for.inc11
for.inc11: ; preds = %for.inc11.loopexit, %for.cond1.preheader
%j.1.lcssa = phi i32 [ %j.016, %for.cond1.preheader ], [ %itr, %for.inc11.loopexit ]
%inc12 = add nuw i32 %i.015, 1
%cmp = icmp ult i32 %inc12, %itr
br i1 %cmp, label %for.cond1.preheader, label %for.end13.loopexit
for.end13.loopexit: ; preds = %for.inc11
br label %for.end13
for.end13: ; preds = %for.end13.loopexit, %entry
ret i32 0
}
; CHECK-LABEL: @with_metadata(
define i32 @with_metadata(i32* nocapture %var1, i32* nocapture readnone %var2, i32* nocapture %var3, i32 %itr) #0 {
entry:
%cmp14 = icmp eq i32 %itr, 0
br i1 %cmp14, label %for.end13, label %for.cond1.preheader.preheader
for.cond1.preheader.preheader: ; preds = %entry
br label %for.cond1.preheader
for.cond1.preheader: ; preds = %for.cond1.preheader.preheader, %for.inc11
%j.016 = phi i32 [ %j.1.lcssa, %for.inc11 ], [ 0, %for.cond1.preheader.preheader ]
%i.015 = phi i32 [ %inc12, %for.inc11 ], [ 0, %for.cond1.preheader.preheader ]
%cmp212 = icmp ult i32 %j.016, %itr
br i1 %cmp212, label %for.body3.lr.ph, label %for.inc11
for.body3.lr.ph: ; preds = %for.cond1.preheader
%add = add i32 %i.015, %itr
%idxprom6 = zext i32 %i.015 to i64
%arrayidx7 = getelementptr inbounds i32, i32* %var3, i64 %idxprom6
br label %for.body3
for.body3: ; preds = %for.body3.lr.ph, %for.body3
%j.113 = phi i32 [ %j.016, %for.body3.lr.ph ], [ %inc, %for.body3 ]
%idxprom = zext i32 %j.113 to i64
%arrayidx = getelementptr inbounds i32, i32* %var1, i64 %idxprom
; CHECK-NOT: store i32 %add, i32* %arrayidx, align 4, !alias.scope {{.*}}, !noalias {{.*}}
store i32 %add, i32* %arrayidx, align 4
%0 = load i32, i32* %arrayidx7, align 4
%add8 = add nsw i32 %0, %add
store i32 %add8, i32* %arrayidx7, align 4
%inc = add nuw i32 %j.113, 1
%cmp2 = icmp ult i32 %inc, %itr
br i1 %cmp2, label %for.body3, label %for.inc11.loopexit, !llvm.loop !0
for.inc11.loopexit: ; preds = %for.body3
br label %for.inc11
for.inc11: ; preds = %for.inc11.loopexit, %for.cond1.preheader
%j.1.lcssa = phi i32 [ %j.016, %for.cond1.preheader ], [ %itr, %for.inc11.loopexit ]
%inc12 = add nuw i32 %i.015, 1
%cmp = icmp ult i32 %inc12, %itr
br i1 %cmp, label %for.cond1.preheader, label %for.end13.loopexit
for.end13.loopexit: ; preds = %for.inc11
br label %for.end13
for.end13: ; preds = %for.end13.loopexit, %entry
ret i32 0
}
!0 = distinct !{!0, !1}
!1 = !{!"llvm.loop.licm_versioning.disable"}