[llvm] [PowerPC][AIX] 64-bit large code-model support for toc-data (PR #90619)

[Zaara Syeda via llvm-commits]

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@@ -7780,6 +7775,10 @@ void PPCDAGToDAGISel::PeepholePPC64() {
       Flags = PPCII::MO_TLSLD_LO;
       break;
     case PPC::ADDItocL8:
+      // Skip the following peephole optimizations for ADDItocL8 on AIX which
+      // is used for toc-data access.
+      if (Subtarget->isAIXABI())
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syzaara wrote:

There is a follow on patch for adding this peephole optimization: https://github.com/llvm/llvm-project/pull/76488 since earlier patches related to this were reverted as the code needed some refactoring. 
See: https://reviews.llvm.org/D101470 and  https://reviews.llvm.org/D155957

https://github.com/llvm/llvm-project/pull/90619