r252156 - [x86] Additional small fix for MCU psABI support

[Andrey Bokhanko via cfe-commits]

Author: asbokhan
Date: Thu Nov  5 06:43:09 2015
New Revision: 252156

URL: http://llvm.org/viewvc/llvm-project?rev=252156&view=rev
Log:
[x86] Additional small fix for MCU psABI support

This patch fixes one more thing in MCU psABI support: LongDoubleWidth should be set to 64.

Differential Revision: http://reviews.llvm.org/D14285

Modified:
    cfe/trunk/lib/Basic/Targets.cpp
    cfe/trunk/test/CodeGen/x86_32-arguments-iamcu.c

Modified: cfe/trunk/lib/Basic/Targets.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Basic/Targets.cpp?rev=252156&r1=252155&r2=252156&view=diff
==============================================================================
--- cfe/trunk/lib/Basic/Targets.cpp (original)
+++ cfe/trunk/lib/Basic/Targets.cpp Thu Nov  5 06:43:09 2015
@@ -2335,8 +2335,7 @@ class X86TargetInfo : public TargetInfo
 public:
   X86TargetInfo(const llvm::Triple &Triple) : TargetInfo(Triple) {
     BigEndian = false;
-    LongDoubleFormat = Triple.isOSIAMCU() ? &llvm::APFloat::IEEEdouble
-                                          : &llvm::APFloat::x87DoubleExtended;
+    LongDoubleFormat = &llvm::APFloat::x87DoubleExtended;
   }
   unsigned getFloatEvalMethod() const override {
     // X87 evaluates with 80 bits "long double" precision.
@@ -3624,6 +3623,11 @@ public:
     IntPtrType = SignedInt;
     RegParmMax = 3;
 
+    if (getTriple().isOSIAMCU()) {
+      LongDoubleWidth = 64;
+      LongDoubleFormat = &llvm::APFloat::IEEEdouble;
+    }
+
     // Use fpret for all types.
     RealTypeUsesObjCFPRet = ((1 << TargetInfo::Float) |
                              (1 << TargetInfo::Double) |

Modified: cfe/trunk/test/CodeGen/x86_32-arguments-iamcu.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/x86_32-arguments-iamcu.c?rev=252156&r1=252155&r2=252156&view=diff
==============================================================================
--- cfe/trunk/test/CodeGen/x86_32-arguments-iamcu.c (original)
+++ cfe/trunk/test/CodeGen/x86_32-arguments-iamcu.c Thu Nov  5 06:43:09 2015
@@ -57,6 +57,6 @@ st12_t retLargeStruct(int i1, st12_t r)
 // CHECK-LABEL: define i32 @varArgs(i32 inreg %i1, ...)
 int varArgs(int i1, ...) { return i1; }
 
-// CHECK-LABEL: define double @longDoubleArg(double %ld1)
+// CHECK-LABEL: define double @longDoubleArg(double inreg %ld1)
 long double longDoubleArg(long double ld1) { return ld1; }