From aa99b607b5cf8ef1260f5661dcbf077f26ee797c Mon Sep 17 00:00:00 2001
From: Tobias Hieta <tobias@hieta.se>
Date: Tue, 8 Nov 2022 09:23:10 +0100
Subject: [clang][pdb] Don't include -fmessage-length in PDB buildinfo

As discussed in https://reviews.llvm.org/D136474 -fmessage-length
creates problems with reproduciability in the PDB files.

This patch just drops that argument when writing the PDB file.

Reviewed By: hans

Differential Revision: https://reviews.llvm.org/D137322
---
 llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp')

diff --git a/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp b/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp
index a6f1fbc..3bb0df4 100644
--- a/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp
@@ -908,6 +908,9 @@ static std::string flattenCommandLine(ArrayRef<std::string> Args,
     }
     if (Arg.startswith("-object-file-name") || Arg == MainFilename)
       continue;
+    // Skip fmessage-length for reproduciability.
+    if (Arg.startswith("-fmessage-length"))
+      continue;
     if (PrintedOneArg)
       OS << " ";
     llvm::sys::printArg(OS, Arg, /*Quote=*/true);
-- 
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