fix issue 13821 again

azure-pipelines.yml

@@ -19,6 +19,15 @@ jobs:
           ARCH: x64
           D_COMPILER: dmd
     steps:
+      - script: set
+        displayName: environment
+      - script: systeminfo
+        displayName: systeminfo
+      - task: CopyFiles@2
+        inputs:
+          sourceFolder: '$(Build.SourcesDirectory)'
+          contents: '**/*'
+          TargetFolder: '$(Build.SourcesDirectory)/../druntime'
       - script: git clone --branch $(DMD_BRANCH) https://github.com/dlang/dmd.git ../dmd
       - script: |
           call "%VSINSTALLDIR%\VC\Auxiliary\Build\vcvarsall.bat" %ARCH%
@@ -34,12 +43,21 @@ jobs:
       HOST_DMD_VERSION: LATEST
     strategy:
       matrix:
-        x64:
+        x86:
           OS: Win_32
           MODEL: 32
           ARCH: x86
           D_COMPILER: dmd
     steps:
+      - script: set
+        displayName: environment
+      - script: systeminfo
+        displayName: systeminfo
+      - task: CopyFiles@2
+        inputs:
+          sourceFolder: '$(Build.SourcesDirectory)'
+          contents: '**/*'
+          TargetFolder: '$(Build.SourcesDirectory)/../druntime'
       - script: git clone --branch $(DMD_BRANCH) https://github.com/dlang/dmd.git ../dmd
       - script: cd ../dmd && sh --login .azure-pipelines/windows.sh
 
@@ -59,6 +77,15 @@ jobs:
           VISUALD_VER: v0.49.0
           LDC_VERSION: 1.14.0
     steps:
+      - script: set
+        displayName: environment
+      - script: systeminfo
+        displayName: systeminfo
+      - task: CopyFiles@2
+        inputs:
+          sourceFolder: '$(Build.SourcesDirectory)'
+          contents: '**/*'
+          TargetFolder: '$(Build.SourcesDirectory)/../druntime'
       - script: git clone --branch $(DMD_BRANCH) https://github.com/dlang/dmd.git ../dmd
       - script: cd ../dmd && sh --login .azure-pipelines/windows-visual-studio.sh
       - script: cd ../dmd && call .azure-pipelines\windows-msbuild.bat

src/core/thread/fiber.d

@@ -1214,13 +1214,14 @@ private:
             pstack -= reserve;
             *(cast(EXCEPTION_REGISTRATION*)pstack) =
                 EXCEPTION_REGISTRATION( sehChainEnd, finalHandler );
+            auto pChainEnd = pstack;
 
             push( cast(size_t) &fiber_entryPoint );                 // EIP
             push( cast(size_t) m_ctxt.bstack - reserve );           // EBP
             push( 0x00000000 );                                     // EDI
             push( 0x00000000 );                                     // ESI
             push( 0x00000000 );                                     // EBX
-            push( cast(size_t) m_ctxt.bstack - reserve );           // FS:[0]
+            push( cast(size_t) pChainEnd );                         // FS:[0]
             push( cast(size_t) m_ctxt.bstack );                     // FS:[4]
             push( cast(size_t) m_ctxt.bstack - m_size );            // FS:[8]
             push( 0x00000000 );                                     // EAX
@@ -1718,9 +1719,8 @@ unittest
 
 
 // Test exception handling inside fibers.
-version (Win32) {
-    // broken on win32 under windows server 2012: bug 13821
-} else unittest {
+unittest
+{
     enum MSG = "Test message.";
     string caughtMsg;
     (new Fiber({
@@ -1758,9 +1758,8 @@ unittest
     new Fiber({}).call(Fiber.Rethrow.no);
 }
 
-version (Win32) {
-    // broken on win32 under windows server 2012: bug 13821
-} else unittest {
+unittest
+{
     enum MSG = "Test message.";
 
     try