[PATCH] D32514: [asan] Unconditionally enable GC of globals on COFF

[Evgeniy Stepanov via Phabricator via cfe-commits]

eugenis created this revision.

This change restores pre-r301225 behavior, where linker GC compatible global
instrumentation was used on COFF targets disregarding -f(no-)data-sections and/or
/Gw flags.


Repository:
  rL LLVM

https://reviews.llvm.org/D32514

Files:
  lib/CodeGen/BackendUtil.cpp
  test/CodeGen/asan-globals-gc.cpp


Index: test/CodeGen/asan-globals-gc.cpp
===================================================================
--- test/CodeGen/asan-globals-gc.cpp
+++ test/CodeGen/asan-globals-gc.cpp
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -fsanitize=address -emit-llvm -o - -triple x86_64-windows-msvc %s | FileCheck %s --check-prefix=WITHOUT-GC
+// RUN: %clang_cc1 -fsanitize=address -emit-llvm -o - -triple x86_64-windows-msvc %s | FileCheck %s --check-prefix=WITH-GC
 // RUN: %clang_cc1 -fsanitize=address -emit-llvm -o - -triple x86_64-windows-msvc -fdata-sections %s | FileCheck %s --check-prefix=WITH-GC
 
 int global;
Index: lib/CodeGen/BackendUtil.cpp
===================================================================
--- lib/CodeGen/BackendUtil.cpp
+++ lib/CodeGen/BackendUtil.cpp
@@ -196,9 +196,8 @@
 static bool asanUseGlobalsGC(const Triple &T, const CodeGenOptions &CGOpts) {
   switch (T.getObjectFormat()) {
   case Triple::MachO:
-    return true;
   case Triple::COFF:
-    return CGOpts.DataSections;
+    return true;
   case Triple::ELF:
     return CGOpts.DataSections && !CGOpts.DisableIntegratedAS;
   default:


-------------- next part --------------
A non-text attachment was scrubbed...
Name: D32514.96658.patch
Type: text/x-patch
Size: 1115 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/cfe-commits/attachments/20170426/67125029/attachment.bin>