[llvm] [CodeGen] Use TargetLowering for TypeInfo of PointerTy (PR #93469)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,31 @@
+; RUN: opt < %s -passes="loop-vectorize"
+; ModuleID = 'reduced.ll'
+source_filename = "reduced.ll"
+;target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+; Function Attrs: nofree norecurse nosync nounwind memory(read, argmem: readwrite, inaccessiblemem: none)
+define noalias noundef ptr @foo(ptr readonly %__first, ptr writeonly %__last) local_unnamed_addr #0 {
+entry:
+  %cmp.not1 = icmp eq ptr %__first, %__last
+  br i1 %cmp.not1, label %for.end, label %for.body.preheader
+
+for.body.preheader:                               ; preds = %entry
+  br label %for.body
+
+for.body:                                         ; preds = %for.body.preheader, %for.body
+  %__first.addr.02 = phi ptr [ %incdec.ptr, %for.body ], [ %__first, %for.body.preheader ]
+  %0 = load ptr, ptr %__first.addr.02, align 8
+  store ptr %0, ptr %__last, align 8
+  %incdec.ptr = getelementptr inbounds i8, ptr %__first.addr.02, i64 16
+  %cmp.not = icmp eq ptr %incdec.ptr, %__last
+  br i1 %cmp.not, label %for.end.loopexit, label %for.body
+
+for.end.loopexit:                                 ; preds = %for.body
+  br label %for.end
+
+for.end:                                          ; preds = %for.end.loopexit, %entry
+  ret ptr null
+}
+
+attributes #0 = { nofree norecurse nosync nounwind memory(read, argmem: readwrite, inaccessiblemem: none) "target-cpu"="znver4" }
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arsenm wrote:

Probably don't need any of these, except znver4? 

https://github.com/llvm/llvm-project/pull/93469