Add tests

Author: Prabhuk

llvm/lib/IR/Mangler.cpp

@@ -223,7 +223,7 @@ void llvm::emitLinkerFlagsForGlobalCOFF(raw_ostream &OS, const GlobalValue *GV,
     bool NeedQuotes = GV->hasName() && !canBeUnquotedInDirective(GV->getName());
     if (NeedQuotes)
       OS << "\"";
-    if (TT.isWindowsGNUEnvironment() || TT.isWindowsCygwinEnvironment() || TT.isUEFI()) {
+    if (TT.isWindowsGNUEnvironment() || TT.isWindowsCygwinEnvironment()) {
       std::string Flag;
       raw_string_ostream FlagOS(Flag);
       Mangler.getNameWithPrefix(FlagOS, GV, false);

llvm/test/CodeGen/X86/dllexport-x86_64.ll

@@ -1,4 +1,5 @@
 ; RUN: llc -mtriple x86_64-pc-win32   < %s | FileCheck -check-prefix=CHECK -check-prefix=WIN32 %s
+; RUN: llc -mtriple x86_64-pc-uefi   < %s | FileCheck -check-prefix=CHECK -check-prefix=WIN32 %s
 ; RUN: llc -mtriple x86_64-pc-mingw32 < %s | FileCheck -check-prefix=CHECK -check-prefix=MINGW %s
 ; RUN: llc -mtriple x86_64-pc-win32   < %s | FileCheck -check-prefix=NOTEXPORTED %s
 ; RUN: llc -mtriple x86_64-pc-mingw32 < %s | FileCheck -check-prefix=NOTEXPORTED %s

llvm/test/CodeGen/X86/mangle-question-mark.ll

@@ -2,6 +2,7 @@
 
 ; RUN: llc -mtriple i686-pc-win32 < %s | FileCheck %s --check-prefix=COFF
 ; RUN: llc -mtriple x86_64-pc-win32 < %s | FileCheck %s --check-prefix=COFF64
+; RUN: llc -mtriple x86_64-uefi < %s | FileCheck %s --check-prefix=COFF64
 ; RUN: llc -mtriple i686-linux-gnu < %s | FileCheck %s --check-prefix=ELF
 ; RUN: llc -mtriple i686-apple-darwin < %s | FileCheck %s --check-prefix=MACHO
 

llvm/test/CodeGen/X86/win32-preemption.ll

@@ -5,6 +5,13 @@
 ; RUN: llc -mtriple x86_64-pc-win32 \
 ; RUN:  -relocation-model=dynamic-no-pic < %s | FileCheck --check-prefix=COFF %s
 
+; RUN: llc -mtriple x86_64-uefi \
+; RUN:     -relocation-model=static  < %s | FileCheck --check-prefix=COFF_S %s
+; RUN: llc -mtriple x86_64-uefi \
+; RUN:     -relocation-model=pic     < %s | FileCheck --check-prefix=COFF %s
+; RUN: llc -mtriple x86_64-uefi \
+; RUN:  -relocation-model=dynamic-no-pic < %s | FileCheck --check-prefix=COFF %s
+
 
 ; 32 bits
 

llvm/unittests/IR/ManglerTest.cpp

@@ -134,6 +134,42 @@ TEST(ManglerTest, WindowsX64) {
             "?vectorcall");
 }
 
+TEST(ManglerTest, UEFIX64) {
+  LLVMContext Ctx;
+  DataLayout DL("e-m:w-p270:32:32-p271:32:32-p272:64:64-"
+                "i64:64-i128:128-f80:128-n8:16:32:64-S128"); // uefi X86_64
+  Module Mod("test", Ctx);
+  Mod.setDataLayout(DL);
+  Mangler Mang;
+  EXPECT_EQ(mangleStr("foo", Mang, DL), "foo");
+  EXPECT_EQ(mangleStr("\01foo", Mang, DL), "foo");
+  EXPECT_EQ(mangleStr("?foo", Mang, DL), "?foo");
+  EXPECT_EQ(mangleFunc("foo", llvm::GlobalValue::ExternalLinkage,
+                       llvm::CallingConv::C, Mod, Mang),
+            "foo");
+  EXPECT_EQ(mangleFunc("?foo", llvm::GlobalValue::ExternalLinkage,
+                       llvm::CallingConv::C, Mod, Mang),
+            "?foo");
+  EXPECT_EQ(mangleFunc("foo", llvm::GlobalValue::PrivateLinkage,
+                       llvm::CallingConv::C, Mod, Mang),
+            ".Lfoo");
+  // Test calling conv mangling.
+  EXPECT_EQ(mangleFunc("stdcall", llvm::GlobalValue::ExternalLinkage,
+                       llvm::CallingConv::X86_StdCall, Mod, Mang),
+            "stdcall");
+  EXPECT_EQ(mangleFunc("fastcall", llvm::GlobalValue::ExternalLinkage,
+                       llvm::CallingConv::X86_FastCall, Mod, Mang),
+            "fastcall");
+  EXPECT_EQ(mangleFunc("vectorcall", llvm::GlobalValue::ExternalLinkage,
+                       llvm::CallingConv::X86_VectorCall, Mod, Mang),
+            "vectorcall@@24");
+
+  // Adding a '?' prefix blocks calling convention mangling.
+  EXPECT_EQ(mangleFunc("?vectorcall", llvm::GlobalValue::ExternalLinkage,
+                       llvm::CallingConv::X86_VectorCall, Mod, Mang),
+            "?vectorcall");
+}
+
 TEST(ManglerTest, XCOFF) {
   LLVMContext Ctx;
   DataLayout DL("m:a"); // XCOFF/AIX