[llvm] [AMDGPU] Add IR LiveReg type-based optimization (PR #66838)
Jay Foad via llvm-commits
llvm-commits at lists.llvm.org
Thu Apr 18 07:49:54 PDT 2024
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@@ -371,9 +452,269 @@ bool AMDGPUCodeGenPrepareImpl::run(Function &F) {
}
}
}
+
+ // GlobalISel should directly use the values, and do not need to emit
+ // CopyTo/CopyFrom Regs across blocks
+ if (UsesGlobalISel)
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jayfoad wrote:
Just query `TM->Options.EnableGlobalISel` here, no need for a new `UsesGlobalISel` field?
https://github.com/llvm/llvm-project/pull/66838
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