From a0d2b0aa65665ba67a160d90e7ddb27c3c550acd Mon Sep 17 00:00:00 2001
From: Nikita Popov <npopov@redhat.com>
Date: Fri, 11 Mar 2022 16:48:39 +0100
Subject: [Bitcode] Clarify that extractvalue/insertvalue constexprs are not
 supported

Bitcode currently cannot encode these. Throw a more obvious error
in this case, rather than failing an operand count assertion.
---
 llvm/lib/Bitcode/Writer/BitcodeWriter.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'llvm/lib/Bitcode/Writer/BitcodeWriter.cpp')

diff --git a/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp b/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
index ec10994..96f5666 100644
--- a/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
+++ b/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
@@ -2653,6 +2653,10 @@ void ModuleBitcodeWriter::writeConstants(unsigned FirstVal, unsigned LastVal,
         Record.push_back(VE.getValueID(C->getOperand(1)));
         Record.push_back(CE->getPredicate());
         break;
+      case Instruction::ExtractValue:
+      case Instruction::InsertValue:
+        report_fatal_error("extractvalue/insertvalue constexprs not supported");
+        break;
       }
     } else if (const BlockAddress *BA = dyn_cast<BlockAddress>(C)) {
       Code = bitc::CST_CODE_BLOCKADDRESS;
-- 
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