en Copyright 2015 Java http://172.16.0.5:8080/history/llvm-project-15.0.7/llvm/test/CodeGen/PowerPC/aix-alias-alignment.ll#d2a35e4d [AIX] Handling the label alignment of a globalvariable with its multiple aliases.This patch handles the case where a variable hasmultiple aliases.AIX's assembly directive .set is not usable for thealiasing purpose, and using different labels allowsAIX to emulate symbol aliases. If a value is emittedbetween any two labels, meaning they are not aligned,XCOFF will automatically calculate the offset for them.This patch implements:1) Emits the label of the alias just before emittingthe value of the sub-element that the alias referred to.2) A set of aliases that refers to the same offsetshould be aligned.3) We didn't emit aliasing labels for common andzero-initialized local symbols inPPCAIXAsmPrinter::emitGlobalVariableHelper, butemitted linkage for them inAsmPrinter::emitGlobalAlias, which caused a FAILURE.This patch fixes the bug by blocking emitting linkagefor the alias without a label.Reviewed By: shchenzDifferential Revision: https://reviews.llvm.org/D124654 List of files: /llvm-project-15.0.7/llvm/test/CodeGen/PowerPC/aix-alias-alignment.ll Mon, 04 Jul 2022 03:16:16 +0000 esmeyi <esme.yi@ibm.com>