[PATCH] D132440: [Clang] Avoid using unwind library in the MSVC environment

[Petr Hosek via Phabricator via cfe-commits]

phosek updated this revision to Diff 455020.
phosek added a comment.

Test added.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D132440/new/

https://reviews.llvm.org/D132440

Files:
  clang/lib/Driver/ToolChains/CommonArgs.cpp
  clang/test/Driver/compiler-rt-unwind.c


Index: clang/test/Driver/compiler-rt-unwind.c
===================================================================
--- clang/test/Driver/compiler-rt-unwind.c
+++ clang/test/Driver/compiler-rt-unwind.c
@@ -88,6 +88,12 @@
 // RTLIB-GCC-UNWINDLIB-COMPILER_RT: "{{[.|\\\n]*}}--rtlib=libgcc requires --unwindlib=libgcc"
 //
 // RUN: %clang -### %s 2>&1 \
+// RUN:     --target=x86_64-pc-windows-msvc -rtlib=compiler-rt --unwindlib=libunwind \
+// RUN:   | FileCheck --check-prefix=MSVC-RTLIB-COMPILER-RT-UNWINDLIB-COMPILER-RT %s
+// MSVC-RTLIB-COMPILER-RT-UNWINDLIB-COMPILER-RT: "{{.*}}clang_rt.builtins-x86_64.lib"
+// MSVC-RTLIB-COMPILER-RT-UNWINDLIB-COMPILER-RT-NOT: "{{.*}}unwind.lib"
+//
+// RUN: %clang -### %s 2>&1 \
 // RUN:     --target=x86_64-w64-mingw32 -rtlib=compiler-rt --unwindlib=libunwind \
 // RUN:     -shared-libgcc \
 // RUN:     --gcc-toolchain="" \
Index: clang/lib/Driver/ToolChains/CommonArgs.cpp
===================================================================
--- clang/lib/Driver/ToolChains/CommonArgs.cpp
+++ clang/lib/Driver/ToolChains/CommonArgs.cpp
@@ -1510,7 +1510,7 @@
   // Targets that don't use unwind libraries.
   if ((TC.getTriple().isAndroid() && UNW == ToolChain::UNW_Libgcc) ||
       TC.getTriple().isOSIAMCU() || TC.getTriple().isOSBinFormatWasm() ||
-      UNW == ToolChain::UNW_None)
+      TC.getTriple().isWindowsMSVCEnvironment() || UNW == ToolChain::UNW_None)
     return;
 
   LibGccType LGT = getLibGccType(TC, D, Args);


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