[llvm] [clang-tools-extra] [RISCV] Support Global Dynamic TLSDESC in the RISC-V backend (PR #66915)

[Paul Kirth via cfe-commits]

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@@ -6843,6 +6845,24 @@ SDValue RISCVTargetLowering::getDynamicTLSAddr(GlobalAddressSDNode *N,
   return LowerCallTo(CLI).first;
 }
 
+SDValue
+RISCVTargetLowering::getGeneralDynamicTLSDescAddr(GlobalAddressSDNode *N,
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ilovepi wrote:

Well, AArch64 handles lowering for llvm's general-dynamic and local-dynamic cases differently. I was trying to make it clear here that we're not trying to do anything fancy like elide loads of the `__MODULE_BASE__` for multiple accesses.  I'm not convinced we want to do that in RISC-V, so it's probably fine to rename this.

Maybe `getTLSDescAddr` is good enough? at least until we decide that we want to optimize them differently.

https://github.com/llvm/llvm-project/pull/66915