CodeGen/ObjC/NeXT: Fix Obj-C message send to match llvm-gcc when choosing

whether to use objc_msgSend_fpret; the choice is target dependent, not Obj-C ABI
dependent.
 - <rdar://problem/8139758> arm objc _objc_msgSend_fpret bug

llvm-svn: 108379

2 files changed, 11 insertions, 0 deletions

diff --git a/clang/lib/Basic/TargetInfo.cpp b/clang/lib/Basic/TargetInfo.cpp
index e4eaf631378..7fcf372a368 100644
--- a/clang/lib/Basic/TargetInfo.cpp
+++ b/clang/lib/Basic/TargetInfo.cpp
@@ -55,6 +55,9 @@ TargetInfo::TargetInfo(const std::string &T) : Triple(T) {
                       "i64:64:64-f32:32:32-f64:64:64-n32";
   UserLabelPrefix = "_";
   HasAlignMac68kSupport = false;
+
+  // Default to no types using fpret.
+  RealTypeUsesObjCFPRet = 0;
 }
 
 // Out of line virtual dtor for TargetInfo.
diff --git a/clang/lib/Basic/Targets.cpp b/clang/lib/Basic/Targets.cpp
index 8d793163bc0..fdf63e738b5 100644
--- a/clang/lib/Basic/Targets.cpp
+++ b/clang/lib/Basic/Targets.cpp
@@ -1245,6 +1245,11 @@ public:
     PtrDiffType = SignedInt;
     IntPtrType = SignedInt;
     RegParmMax = 3;
+
+    // Use fpret for all types.
+    RealTypeUsesObjCFPRet = ((1 << TargetInfo::Float) |
+                             (1 << TargetInfo::Double) |
+                             (1 << TargetInfo::LongDouble));
   }
   virtual const char *getVAListDeclaration() const {
     return "typedef char* __builtin_va_list;";
@@ -1411,6 +1416,9 @@ public:
     DescriptionString = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-"
                         "i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-"
                         "a0:0:64-s0:64:64-f80:128:128-n8:16:32:64";
+
+    // Use fpret only for long double.
+    RealTypeUsesObjCFPRet = (1 << TargetInfo::LongDouble);
   }
   virtual const char *getVAListDeclaration() const {
     return "typedef struct __va_list_tag {"