[PATCH] Target/X86: Never use the redzone for Win64 ABI functions.

[Phabricator]

REPOSITORY
  rL LLVM

http://reviews.llvm.org/D7953

Files:
  llvm/trunk/lib/Target/X86/X86FrameLowering.cpp
  llvm/trunk/test/CodeGen/X86/2009-06-03-Win64DisableRedZone.ll

Index: llvm/trunk/lib/Target/X86/X86FrameLowering.cpp
===================================================================
--- llvm/trunk/lib/Target/X86/X86FrameLowering.cpp
+++ llvm/trunk/lib/Target/X86/X86FrameLowering.cpp
@@ -581,7 +581,7 @@
   bool Is64Bit = STI.is64Bit();
   // standard x86_64 and NaCl use 64-bit frame/stack pointers, x32 - 32-bit.
   const bool Uses64BitFramePtr = STI.isTarget64BitLP64() || STI.isTargetNaCl64();
-  bool IsWin64 = STI.isTargetWin64();
+  bool IsWin64 = STI.isCallingConvWin64(Fn->getCallingConv());
   // Not necessarily synonymous with IsWin64.
   bool IsWinEH = MF.getTarget().getMCAsmInfo()->usesWindowsCFI();
   bool NeedsWinEH = IsWinEH && Fn->needsUnwindTableEntry();
Index: llvm/trunk/test/CodeGen/X86/2009-06-03-Win64DisableRedZone.ll
===================================================================
--- llvm/trunk/test/CodeGen/X86/2009-06-03-Win64DisableRedZone.ll
+++ llvm/trunk/test/CodeGen/X86/2009-06-03-Win64DisableRedZone.ll
@@ -1,7 +1,8 @@
 ; RUN: llc -mtriple=x86_64-mingw32 < %s | FileCheck %s
+; RUN: llc -mtriple=x86_64-linux < %s | FileCheck %s
 ; CHECK-NOT: -{{[1-9][0-9]*}}(%rsp)
 
-define x86_fp80 @a(i64 %x) nounwind readnone {
+define x86_64_win64cc x86_fp80 @a(i64 %x) nounwind readnone {
 entry:
         %conv = sitofp i64 %x to x86_fp80               ; <x86_fp80> [#uses=1]
         ret x86_fp80 %conv

EMAIL PREFERENCES
  http://reviews.llvm.org/settings/panel/emailpreferences/
-------------- next part --------------
A non-text attachment was scrubbed...
Name: D7953.20885.patch
Type: text/x-patch
Size: 1377 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20150227/6a657e01/attachment.bin>