forked from OSchip/llvm-project
42 lines
1.3 KiB
LLVM
42 lines
1.3 KiB
LLVM
; PR28705
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; RUN: opt < %s -indvars -S | FileCheck %s
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; Check IndVarSimplify doesn't replace external use of the induction var
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; "%inc.i.i" with "%.sroa.speculated + 1" because it is not profitable.
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;
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; CHECK-LABEL: @foo(
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; CHECK: %[[EXIT:.+]] = phi i32 [ %inc.i.i, %for.body650 ]
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; CHECK: %DB.sroa.9.0.lcssa = phi i32 [ 1, %entry ], [ %[[EXIT]], %loopexit ]
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;
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define void @foo(i32 %sub.ptr.div.i, i8* %ref.i1174) local_unnamed_addr {
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entry:
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%cmp.i1137 = icmp ugt i32 %sub.ptr.div.i, 3
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%.sroa.speculated = select i1 %cmp.i1137, i32 3, i32 %sub.ptr.div.i
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%cmp6483126 = icmp eq i32 %.sroa.speculated, 0
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br i1 %cmp6483126, label %XZ.exit, label %for.body650.lr.ph
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for.body650.lr.ph:
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br label %for.body650
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loopexit:
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%inc.i.i.lcssa = phi i32 [ %inc.i.i, %for.body650 ]
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br label %XZ.exit
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XZ.exit:
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%DB.sroa.9.0.lcssa = phi i32 [ 1, %entry ], [ %inc.i.i.lcssa, %loopexit ]
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br label %end
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for.body650:
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%iv = phi i32 [ 0, %for.body650.lr.ph ], [ %inc655, %for.body650 ]
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%iv2 = phi i32 [ 1, %for.body650.lr.ph ], [ %inc.i.i, %for.body650 ]
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%arrayidx.i.i1105 = getelementptr inbounds i8, i8* %ref.i1174, i32 %iv2
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store i8 7, i8* %arrayidx.i.i1105, align 1
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%inc.i.i = add i32 %iv2, 1
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%inc655 = add i32 %iv, 1
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%cmp648 = icmp eq i32 %inc655, %.sroa.speculated
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br i1 %cmp648, label %loopexit, label %for.body650
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end:
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ret void
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}
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