Author: Martin Storsjö
Date: 2026-07-26T12:28:28+03:00
New Revision: 2b660e0f1b6dce0484a2f83c02395a919a063ab2

URL: 
https://github.com/llvm/llvm-project/commit/2b660e0f1b6dce0484a2f83c02395a919a063ab2
DIFF: 
https://github.com/llvm/llvm-project/commit/2b660e0f1b6dce0484a2f83c02395a919a063ab2.diff

LOG: [clang] [test] Fix a new test on mingw (#212064)

This fixes running a new test that was added in
4b66bacd1fdf02803509b744034f3ab09945157c, in mingw environments.

The quirks that warranted adding the `!defined(_WIN32)` condition in the
test aren't actually specific to Windows in general, but specific to
MSVC environments - mingw environments behave just like other platforms.

Ideally we'd use `!defined(_MSC_VER)`, however in -cc1 mode, Clang
doesn't automatically define `_MSC_VER`; defining it requires setting a
command line option that the driver normally passes in MSVC mode.
Therefore, qualify the condition as `!defined(_MSC_VER) ||
defined(__MINGW32__)`.

Added: 
    

Modified: 
    clang/test/AST/ByteCode/virtual-bases.cpp

Removed: 
    


################################################################################
diff  --git a/clang/test/AST/ByteCode/virtual-bases.cpp 
b/clang/test/AST/ByteCode/virtual-bases.cpp
index 1543249ec69fe..a7233f2df9c17 100644
--- a/clang/test/AST/ByteCode/virtual-bases.cpp
+++ b/clang/test/AST/ByteCode/virtual-bases.cpp
@@ -437,7 +437,7 @@ namespace Offsets {
   };
 
   constexpr C c{12};
-#if !defined(_WIN32)
+#if !defined(_WIN32) || defined(__MINGW32__)
 #if __SIZEOF_SIZE_T__ == 8
   static_assert( (fold((char*)&c.c - (char*)&c)) == 12);
   static_assert( (fold((char*)&c.b - (char*)&c)) == 8);


        
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