[PATCH] D92293: [RISCVAsmParser] Allow a SymbolRef operand to be a complex expression

Fangrui Song via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Mon Nov 30 10:31:27 PST 2020


MaskRay marked an inline comment as done.
MaskRay added inline comments.


================
Comment at: llvm/lib/Target/RISCV/AsmParser/RISCVAsmParser.cpp:1862
+  MCFixup Fixup;
+  if (Expr->evaluateAsRelocatable(Res, nullptr, &Fixup))
+    return Res.getRefKind() == RISCVMCExpr::VK_RISCV_None;
----------------
jrtc27 wrote:
> Should we not be passing the assembler pointer? I don't remember when exactly RISC-V needs it, but RISC-V is pickier due to supporting linker relaxation.
We don't need it here. Passing the pointer can enable more aggressive constant folding, but this appears to be fine for now.


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https://reviews.llvm.org/D92293



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