derek.holloway
7502bf64a4
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105 lines
4.5 KiB
LLVM
105 lines
4.5 KiB
LLVM
; RUN: opt < %s -S -passes='function(loop-versioning-licm,loop-mssa(licm))' 2>&1 | FileCheck %s
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; CHECK-LABEL: @without_metadata(
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define i32 @without_metadata(ptr nocapture %var1, ptr nocapture readnone %var2, ptr nocapture %var3, i32 %itr) #0 {
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entry:
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%cmp14 = icmp eq i32 %itr, 0
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br i1 %cmp14, label %for.end13, label %for.cond1.preheader.preheader
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for.cond1.preheader.preheader: ; preds = %entry
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br label %for.cond1.preheader
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for.cond1.preheader: ; preds = %for.cond1.preheader.preheader, %for.inc11
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%j.016 = phi i32 [ %j.1.lcssa, %for.inc11 ], [ 0, %for.cond1.preheader.preheader ]
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%i.015 = phi i32 [ %inc12, %for.inc11 ], [ 0, %for.cond1.preheader.preheader ]
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%cmp212 = icmp ult i32 %j.016, %itr
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br i1 %cmp212, label %for.body3.lr.ph, label %for.inc11
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for.body3.lr.ph: ; preds = %for.cond1.preheader
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%add = add i32 %i.015, %itr
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%idxprom6 = zext i32 %i.015 to i64
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%arrayidx7 = getelementptr inbounds i32, ptr %var3, i64 %idxprom6
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br label %for.body3
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for.body3: ; preds = %for.body3.lr.ph, %for.body3
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%j.113 = phi i32 [ %j.016, %for.body3.lr.ph ], [ %inc, %for.body3 ]
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%idxprom = zext i32 %j.113 to i64
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%arrayidx = getelementptr inbounds i32, ptr %var1, i64 %idxprom
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; CHECK: store i32 %add, ptr %arrayidx, align 4, !alias.scope {{.*}}, !noalias {{.*}}
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store i32 %add, ptr %arrayidx, align 4
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%0 = load i32, ptr %arrayidx7, align 4
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%add8 = add nsw i32 %0, %add
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store i32 %add8, ptr %arrayidx7, align 4
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%inc = add nuw i32 %j.113, 1
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%cmp2 = icmp ult i32 %inc, %itr
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br i1 %cmp2, label %for.body3, label %for.inc11.loopexit
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for.inc11.loopexit: ; preds = %for.body3
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br label %for.inc11
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for.inc11: ; preds = %for.inc11.loopexit, %for.cond1.preheader
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%j.1.lcssa = phi i32 [ %j.016, %for.cond1.preheader ], [ %itr, %for.inc11.loopexit ]
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%inc12 = add nuw i32 %i.015, 1
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%cmp = icmp ult i32 %inc12, %itr
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br i1 %cmp, label %for.cond1.preheader, label %for.end13.loopexit
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for.end13.loopexit: ; preds = %for.inc11
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br label %for.end13
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for.end13: ; preds = %for.end13.loopexit, %entry
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ret i32 0
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}
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; CHECK-LABEL: @with_metadata(
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define i32 @with_metadata(ptr nocapture %var1, ptr nocapture readnone %var2, ptr nocapture %var3, i32 %itr) #0 {
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entry:
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%cmp14 = icmp eq i32 %itr, 0
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br i1 %cmp14, label %for.end13, label %for.cond1.preheader.preheader
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for.cond1.preheader.preheader: ; preds = %entry
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br label %for.cond1.preheader
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for.cond1.preheader: ; preds = %for.cond1.preheader.preheader, %for.inc11
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%j.016 = phi i32 [ %j.1.lcssa, %for.inc11 ], [ 0, %for.cond1.preheader.preheader ]
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%i.015 = phi i32 [ %inc12, %for.inc11 ], [ 0, %for.cond1.preheader.preheader ]
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%cmp212 = icmp ult i32 %j.016, %itr
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br i1 %cmp212, label %for.body3.lr.ph, label %for.inc11
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for.body3.lr.ph: ; preds = %for.cond1.preheader
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%add = add i32 %i.015, %itr
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%idxprom6 = zext i32 %i.015 to i64
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%arrayidx7 = getelementptr inbounds i32, ptr %var3, i64 %idxprom6
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br label %for.body3
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for.body3: ; preds = %for.body3.lr.ph, %for.body3
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%j.113 = phi i32 [ %j.016, %for.body3.lr.ph ], [ %inc, %for.body3 ]
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%idxprom = zext i32 %j.113 to i64
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%arrayidx = getelementptr inbounds i32, ptr %var1, i64 %idxprom
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; CHECK-NOT: store i32 %add, ptr %arrayidx, align 4, !alias.scope {{.*}}, !noalias {{.*}}
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store i32 %add, ptr %arrayidx, align 4
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%0 = load i32, ptr %arrayidx7, align 4
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%add8 = add nsw i32 %0, %add
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store i32 %add8, ptr %arrayidx7, align 4
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%inc = add nuw i32 %j.113, 1
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%cmp2 = icmp ult i32 %inc, %itr
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br i1 %cmp2, label %for.body3, label %for.inc11.loopexit, !llvm.loop !0
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for.inc11.loopexit: ; preds = %for.body3
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br label %for.inc11
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for.inc11: ; preds = %for.inc11.loopexit, %for.cond1.preheader
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%j.1.lcssa = phi i32 [ %j.016, %for.cond1.preheader ], [ %itr, %for.inc11.loopexit ]
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%inc12 = add nuw i32 %i.015, 1
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%cmp = icmp ult i32 %inc12, %itr
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br i1 %cmp, label %for.cond1.preheader, label %for.end13.loopexit
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for.end13.loopexit: ; preds = %for.inc11
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br label %for.end13
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for.end13: ; preds = %for.end13.loopexit, %entry
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ret i32 0
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}
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!0 = distinct !{!0, !1}
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!1 = !{!"llvm.loop.licm_versioning.disable"}
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