From 9baade2cb547f591f00e05c1940d126b685b1bb1 Mon Sep 17 00:00:00 2001
From: jbrodman <james.brodman@intel.com>
Date: Mon, 23 Feb 2015 11:43:06 -0800
Subject: [PATCH 1/2] Change dll export feature to a switch.

---
 ispc.cpp   | 1 +
 ispc.h     | 3 +++
 main.cpp   | 3 +++
 module.cpp | 2 +-
 4 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/ispc.cpp b/ispc.cpp
index cf310f89..0350d737 100644
--- a/ispc.cpp
+++ b/ispc.cpp
@@ -1075,6 +1075,7 @@ Globals::Globals() {
         FATAL("Current directory path too long!");
 #endif
     forceAlignment = -1;
+    dllExport = false;
 }
 
 ///////////////////////////////////////////////////////////////////////////
diff --git a/ispc.h b/ispc.h
index 095850fc..cec56056 100644
--- a/ispc.h
+++ b/ispc.h
@@ -612,6 +612,9 @@ struct Globals {
     /** Indicates that alignment in memory allocation routines should be
         forced to have given value. -1 value means natural alignment for the platforms. */
     int forceAlignment;
+
+    /** When true, flag non-static functions with dllexport attribute on Windows. */
+    bool dllExport;
 };
 
 enum {
diff --git a/main.cpp b/main.cpp
index 9250a3c5..7128dcaa 100644
--- a/main.cpp
+++ b/main.cpp
@@ -153,6 +153,7 @@ devUsage(int ret) {
     lPrintVersion();
     printf("\nusage (developer options): ispc\n");
     printf("    [--debug]\t\t\t\tPrint information useful for debugging ispc\n");
+    printf("    [--dllexport]\t\t\tMake non-static functions DLL exported.  Windows only.");  
     printf("    [--fuzz-test]\t\t\tRandomly perturb program input to test error conditions\n");
     printf("    [--fuzz-seed=<value>]\t\tSeed value for RNG for fuzz testing\n");
     printf("    [--opt=<option>]\t\t\tSet optimization option\n");
@@ -379,6 +380,8 @@ int main(int Argc, char *Argv[]) {
         }
         else if (!strcmp(argv[i], "--debug"))
             g->debugPrint = true;
+        else if (!strcmp(argv[i], "--dllexport"))
+            g->dllExport = true;
         else if (!strcmp(argv[i], "--instrument"))
             g->emitInstrumentation = true;
         else if (!strcmp(argv[i], "-g")) {
diff --git a/module.cpp b/module.cpp
index 8032564b..7e94fdc4 100644
--- a/module.cpp
+++ b/module.cpp
@@ -916,7 +916,7 @@ Module::AddFunctionDeclaration(const std::string &name,
     
 #ifdef ISPC_IS_WINDOWS
     // Make export functions callable from DLLS.
-    if (functionType->isExported) {
+    if ((g->dllExport) && (storageClass != SC_STATIC)) {
       function->setDLLStorageClass(llvm::GlobalValue::DLLExportStorageClass);
     }
 #endif

From a54c0db45750d77e461f2b9558a491d3524b6b87 Mon Sep 17 00:00:00 2001
From: jbrodman <james.brodman@intel.com>
Date: Fri, 6 Mar 2015 10:36:07 -0800
Subject: [PATCH 2/2] Added missing newline.

---
 main.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/main.cpp b/main.cpp
index 7128dcaa..edd77619 100644
--- a/main.cpp
+++ b/main.cpp
@@ -153,7 +153,7 @@ devUsage(int ret) {
     lPrintVersion();
     printf("\nusage (developer options): ispc\n");
     printf("    [--debug]\t\t\t\tPrint information useful for debugging ispc\n");
-    printf("    [--dllexport]\t\t\tMake non-static functions DLL exported.  Windows only.");  
+    printf("    [--dllexport]\t\t\tMake non-static functions DLL exported.  Windows only.\n");  
     printf("    [--fuzz-test]\t\t\tRandomly perturb program input to test error conditions\n");
     printf("    [--fuzz-seed=<value>]\t\tSeed value for RNG for fuzz testing\n");
     printf("    [--opt=<option>]\t\t\tSet optimization option\n");