[lld] 5bcbc7e - Add regression test for maybeMangle issue

[Reid Kleckner via llvm-commits]

Author: Reid Kleckner
Date: 2021-06-22T12:55:25-07:00
New Revision: 5bcbc7ee526cea839f34fcf2969ceef128f6f51c

URL: https://github.com/llvm/llvm-project/commit/5bcbc7ee526cea839f34fcf2969ceef128f6f51c
DIFF: https://github.com/llvm/llvm-project/commit/5bcbc7ee526cea839f34fcf2969ceef128f6f51c.diff

LOG: Add regression test for maybeMangle issue

This was crbug.com/1222724, which caused D104529 to be reverted. The
new test fails when D104529 is reapplied locally.

Added: 
    lld/test/COFF/def-export-cpp.s

Modified: 
    

Removed: 
    


################################################################################
diff  --git a/lld/test/COFF/def-export-cpp.s b/lld/test/COFF/def-export-cpp.s
new file mode 100644
index 0000000000000..e00b35b1c5b39
--- /dev/null
+++ b/lld/test/COFF/def-export-cpp.s
@@ -0,0 +1,36 @@
+# REQUIRES: x86
+# RUN: split-file %s %t
+# RUN: llvm-mc -filetype=obj -triple=x86_64-windows-msvc %t/dllmain.s -o %t/dllmain.obj
+# RUN: llvm-mc -filetype=obj -triple=x86_64-windows-msvc %t/path.s -o %t/path.obj
+# RUN: lld-link -lib %t/dllmain.obj -out:%t/archive.lib
+# RUN: echo -e "LIBRARY foo\nEXPORTS\n  GetPathOnDisk" > %t.def
+# RUN: lld-link -entry:dllmain -dll -def:%t.def %t/path.obj %t/archive.lib -out:%t/foo.dll -implib:%t/foo.lib
+# RUN: llvm-readobj %t/foo.lib | FileCheck -check-prefix IMPLIB %s
+# RUN: llvm-readobj --coff-exports %t/foo.dll | FileCheck -check-prefix EXPORTS %s
+
+# IMPLIB: File: foo.dll
+# IMPLIB: Name type: undecorate
+# IMPLIB-NEXT: Symbol: __imp_?GetPathOnDisk@@YA_NPEA_W at Z
+# IMPLIB-NEXT: Symbol: ?GetPathOnDisk@@YA_NPEA_W at Z
+
+# EXPORTS: Name: GetPathOnDisk
+
+#--- path.s
+
+        .def    "?GetPathOnDisk@@YA_NPEA_W at Z";
+        .scl    2;
+        .type   32;
+        .endef
+        .globl  "?GetPathOnDisk@@YA_NPEA_W at Z"
+"?GetPathOnDisk@@YA_NPEA_W at Z":
+        retq
+
+#--- dllmain.s
+
+        .def     dllmain;
+        .scl    2;
+        .type   32;
+        .endef
+        .globl  dllmain
+dllmain:
+        retq