[llvm] MIPS: fix emitDirectiveCpsetup on N32 (PR #80534)

[Fangrui Song via llvm-commits]

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@@ -1255,7 +1255,9 @@ void MipsTargetELFStreamer::emitDirectiveCpsetup(unsigned RegNo,
     emitRRI(Mips::SD, GPReg, Mips::SP, RegOrOffset, SMLoc(), &STI);
   }
 
-  if (getABI().IsN32()) {
+#if 0
+  // We haven't support -mabicalls -mno-shared yet.
+  if (-mno-shared) {
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MaskRay wrote:

IIUC -mno-shared only makes sense for -fno-pic. Modern executables use PIE and cannot use -mno-shared.

https://github.com/llvm/llvm-project/pull/80534