[llvm] r201365 - Use __literal16. It has been supported by the linker since 2005.

[Rafael Espindola]

Author: rafael
Date: Thu Feb 13 17:16:11 2014
New Revision: 201365

URL: http://llvm.org/viewvc/llvm-project?rev=201365&view=rev
Log:
Use __literal16. It has been supported by the linker since 2005.

Modified:
    llvm/trunk/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
    llvm/trunk/lib/MC/MCObjectFileInfo.cpp
    llvm/trunk/test/CodeGen/X86/global-sections.ll

Modified: llvm/trunk/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/TargetLoweringObjectFileImpl.cpp?rev=201365&r1=201364&r2=201365&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/TargetLoweringObjectFileImpl.cpp (original)
+++ llvm/trunk/lib/CodeGen/TargetLoweringObjectFileImpl.cpp Thu Feb 13 17:16:11 2014
@@ -562,7 +562,7 @@ SelectSectionForGlobal(const GlobalValue
       return FourByteConstantSection;
     if (Kind.isMergeableConst8())
       return EightByteConstantSection;
-    if (Kind.isMergeableConst16() && SixteenByteConstantSection)
+    if (Kind.isMergeableConst16())
       return SixteenByteConstantSection;
   }
 
@@ -601,7 +601,7 @@ TargetLoweringObjectFileMachO::getSectio
     return FourByteConstantSection;
   if (Kind.isMergeableConst8())
     return EightByteConstantSection;
-  if (Kind.isMergeableConst16() && SixteenByteConstantSection)
+  if (Kind.isMergeableConst16())
     return SixteenByteConstantSection;
   return ReadOnlySection;  // .const
 }

Modified: llvm/trunk/lib/MC/MCObjectFileInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/MC/MCObjectFileInfo.cpp?rev=201365&r1=201364&r2=201365&view=diff
==============================================================================
--- llvm/trunk/lib/MC/MCObjectFileInfo.cpp (original)
+++ llvm/trunk/lib/MC/MCObjectFileInfo.cpp Thu Feb 13 17:16:11 2014
@@ -79,16 +79,10 @@ void MCObjectFileInfo::InitMachOMCObject
                            MCSectionMachO::S_8BYTE_LITERALS,
                            SectionKind::getMergeableConst8());
 
-  // ld_classic doesn't support .literal16 in 32-bit mode, and ld64 falls back
-  // to using it in -static mode.
-  SixteenByteConstantSection = 0;
-  if (RelocM != Reloc::Static &&
-      T.getArch() != Triple::x86_64 && T.getArch() != Triple::ppc64 &&
-      T.getArch() != Triple::ppc64le)
-    SixteenByteConstantSection =   // .literal16
-      Ctx->getMachOSection("__TEXT", "__literal16",
-                           MCSectionMachO::S_16BYTE_LITERALS,
-                           SectionKind::getMergeableConst16());
+  SixteenByteConstantSection // .literal16
+      = Ctx->getMachOSection("__TEXT", "__literal16",
+                             MCSectionMachO::S_16BYTE_LITERALS,
+                             SectionKind::getMergeableConst16());
 
   ReadOnlySection  // .const
     = Ctx->getMachOSection("__TEXT", "__const", 0,

Modified: llvm/trunk/test/CodeGen/X86/global-sections.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/global-sections.ll?rev=201365&r1=201364&r2=201365&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/global-sections.ll (original)
+++ llvm/trunk/test/CodeGen/X86/global-sections.ll Thu Feb 13 17:16:11 2014
@@ -1,5 +1,7 @@
 ; RUN: llc < %s -mtriple=i386-unknown-linux-gnu | FileCheck %s -check-prefix=LINUX
 ; RUN: llc < %s -mtriple=i386-apple-darwin9.7 | FileCheck %s -check-prefix=DARWIN
+; RUN: llc < %s -mtriple=i386-apple-darwin10 -relocation-model=static | FileCheck %s -check-prefix=DARWIN-STATIC
+; RUN: llc < %s -mtriple=x86_64-apple-darwin10 | FileCheck %s -check-prefix=DARWIN64
 ; RUN: llc < %s -mtriple=i386-unknown-linux-gnu -fdata-sections | FileCheck %s -check-prefix=LINUX-SECTIONS
 
 
@@ -47,6 +49,14 @@
 ; DARWIN: _G4:
 ; DARWIN:     .long 34
 
+; DARWIN-STATIC: .section        __TEXT,__literal16,16byte_literals
+; DARWIN-STATIC: _G4:
+; DARWIN-STATIC:     .long 34
+
+; DARWIN64: .section        __TEXT,__literal16,16byte_literals
+; DARWIN64: _G4:
+; DARWIN64:     .quad 34
+
 
 ; int G5 = 47;
 @G5 = global i32 47