[lld] [llvm] [AArch64][llvm-objdump] Fix arm64_32 symbolization (PR #171164)

[David Tellenbach via llvm-commits]

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@@ -123,8 +129,15 @@ bool AArch64ExternalSymbolizer::tryAddingSymbolicOperand(
         const MCRegisterInfo &MCRI = *Ctx.getRegisterInfo();
         // otool expects the fully encoded ADD/LDR instruction to be passed in
         // as the value here, so reconstruct it:
-        unsigned EncodedInst =
-          MI.getOpcode() == AArch64::ADDXri ? 0x91000000: 0xF9400000;
+        unsigned EncodedInst;
+        if (MI.getOpcode() == AArch64::ADDXri)
+          EncodedInst = 0x91000000;
+        else if (MI.getOpcode() == AArch64::ADDWri)
+          EncodedInst = 0x11000000;
+        else if (MI.getOpcode() == AArch64::LDRXui)
+          EncodedInst = 0xF9400000;
+        else // LDRWui
+          EncodedInst = 0xB9400000;
         EncodedInst |= Value << 10; // imm12 [+ shift:2 for ADD]
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dtellenbach wrote:

Please update the comment, currently it's add specific. 

https://github.com/llvm/llvm-project/pull/171164