[llvm] [AIX][TLS] Produce a faster local-exec access sequence for the "aix-small-tls" global variable attribute (PR #83053)

[zhijian lin via llvm-commits]

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@@ -0,0 +1,221 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 4
+; RUN: llc  -verify-machineinstrs -mcpu=pwr7 -ppc-asm-full-reg-names \
+; RUN:      -mtriple powerpc64-ibm-aix-xcoff < %s \
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diggerlin wrote:

nit: the default value of `aix-small-local-exec-tls` is false, in case of we change the default value of `aix-small-local-exec-tls` to true.  please add `-mattr=-aix-small-local-exec-tls` here ,so we do not need to modify the test case.

https://github.com/llvm/llvm-project/pull/83053