From: David Tweed <david.tweed@arm.com>
Date: Thu, 25 Oct 2012 13:33:01 +0000 (+0000)
Subject: Modify the targets to set appropriate calling convention defaults and C variables... 
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=b16abb1bd8ed94c7994836de24915703e6a4e81a;p=clang

Modify the targets to set appropriate calling convention defaults and C variables when using a gnueabihf or aapcs-vfp target.

Tested by me and Wei-Ren Chen.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166679 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Basic/Targets.cpp b/lib/Basic/Targets.cpp
index ba96185f72..9b758d1c21 100644
--- a/lib/Basic/Targets.cpp
+++ b/lib/Basic/Targets.cpp
@@ -3077,7 +3077,7 @@ public:
       }
 
       // FIXME: Override "preferred align" for double and long long.
-    } else if (Name == "aapcs") {
+    } else if (Name == "aapcs" || Name == "aapcs-vfp") {
       IsAAPCS = true;
       // FIXME: Enumerated types are variable width in straight AAPCS.
     } else if (Name == "aapcs-linux") {
@@ -3212,13 +3212,13 @@ public:
     if ('5' <= CPUArch[0] && CPUArch[0] <= '7')
       Builder.defineMacro("__THUMB_INTERWORK__");
 
-    if (ABI == "aapcs" || ABI == "aapcs-linux") {
+    if (ABI == "aapcs" || ABI == "aapcs-linux" || ABI == "aapcs-vfp") {
       // M-class CPUs on Darwin follow AAPCS, but not EABI.
       if (!(getTriple().isOSDarwin() && CPUProfile == "M"))
         Builder.defineMacro("__ARM_EABI__");
       Builder.defineMacro("__ARM_PCS", "1");
 
-      if (!SoftFloat && !SoftFloatABI)
+      if ((!SoftFloat && !SoftFloatABI) || ABI == "aapcs-vfp")
         Builder.defineMacro("__ARM_PCS_VFP", "1");
     }
 
diff --git a/lib/CodeGen/TargetInfo.cpp b/lib/CodeGen/TargetInfo.cpp
index 2c2d17df77..0a6ebb897e 100644
--- a/lib/CodeGen/TargetInfo.cpp
+++ b/lib/CodeGen/TargetInfo.cpp
@@ -2933,7 +2933,9 @@ void ARMABIInfo::computeInfo(CGFunctionInfo &FI) const {
 
   // Calling convention as default by an ABI.
   llvm::CallingConv::ID DefaultCC;
-  if (isEABI())
+  if (getContext().getTargetInfo().getTriple().getEnvironmentName()=="gnueabihf")
+    DefaultCC = llvm::CallingConv::ARM_AAPCS_VFP;
+  else if (isEABI())
     DefaultCC = llvm::CallingConv::ARM_AAPCS;
   else
     DefaultCC = llvm::CallingConv::ARM_APCS;
@@ -4187,10 +4189,10 @@ const TargetCodeGenInfo &CodeGenModule::getTargetCodeGenInfo() {
   case llvm::Triple::thumb:
     {
       ARMABIInfo::ABIKind Kind = ARMABIInfo::AAPCS;
-
       if (strcmp(getContext().getTargetInfo().getABI(), "apcs-gnu") == 0)
         Kind = ARMABIInfo::APCS;
-      else if (CodeGenOpts.FloatABI == "hard")
+      else if (CodeGenOpts.FloatABI == "hard" ||
+               (CodeGenOpts.FloatABI != "soft" && Triple.getEnvironment()==llvm::Triple::GNUEABIHF))
         Kind = ARMABIInfo::AAPCS_VFP;
 
       switch (Triple.getOS()) {