[clang] [llvm] [RISCV] Xqccmp Code Generation (PR #128815)

[Sam Elliott via cfe-commits]

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@@ -141,9 +141,38 @@ class RISCVMachineFunctionInfo : public MachineFunctionInfo {
     // We cannot use fixed locations for the callee saved spill slots if the
     // function uses a varargs save area.
     // TODO: Use a separate placement for vararg registers to enable Zcmp.
-    return MF.getSubtarget<RISCVSubtarget>().hasStdExtZcmp() &&
-           !MF.getTarget().Options.DisableFramePointerElim(MF) &&
-           VarArgsSaveSize == 0;
+    if (VarArgsSaveSize != 0)
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lenary wrote:

Yeah, sure.

https://github.com/llvm/llvm-project/pull/128815