Author: asbokhan Date: Mon Nov 2 03:54:17 2015 New Revision: 251786 URL: http://llvm.org/viewvc/llvm-project?rev=251786&view=rev Log: [x86] Front-end part of MCU psABI support
This patch implements two things in front-end for MCU psABI support: 1) "long double type is the same as double." 2) "New predefined C/C++ pre-processor symbols: iamcu and iamcu__. Differential Revision: http://reviews.llvm.org/D14205 Added: cfe/trunk/test/Preprocessor/elfiamcu-predefines.c 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=251786&r1=251785&r2=251786&view=diff ============================================================================== --- cfe/trunk/lib/Basic/Targets.cpp (original) +++ cfe/trunk/lib/Basic/Targets.cpp Mon Nov 2 03:54:17 2015 @@ -2335,7 +2335,8 @@ class X86TargetInfo : public TargetInfo public: X86TargetInfo(const llvm::Triple &Triple) : TargetInfo(Triple) { BigEndian = false; - LongDoubleFormat = &llvm::APFloat::x87DoubleExtended; + LongDoubleFormat = Triple.isOSIAMCU() ? &llvm::APFloat::IEEEdouble + : &llvm::APFloat::x87DoubleExtended; } unsigned getFloatEvalMethod() const override { // X87 evaluates with 80 bits "long double" precision. @@ -3370,6 +3371,11 @@ void X86TargetInfo::getTargetDefines(con } if (CPU >= CK_i586) Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8"); + + if (getTriple().isOSIAMCU()) { + Builder.defineMacro("__iamcu"); + Builder.defineMacro("__iamcu__"); + } } bool X86TargetInfo::hasFeature(StringRef Feature) const { 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=251786&r1=251785&r2=251786&view=diff ============================================================================== --- cfe/trunk/test/CodeGen/x86_32-arguments-iamcu.c (original) +++ cfe/trunk/test/CodeGen/x86_32-arguments-iamcu.c Mon Nov 2 03:54:17 2015 @@ -56,3 +56,7 @@ st12_t retLargeStruct(int i1, st12_t r) // insane. // CHECK-LABEL: define i32 @varArgs(i32 inreg %i1, ...) int varArgs(int i1, ...) { return i1; } + +// CHECK-LABEL: define double @longDoubleArg(double %ld1) +long double longDoubleArg(long double ld1) { return ld1; } + Added: cfe/trunk/test/Preprocessor/elfiamcu-predefines.c URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Preprocessor/elfiamcu-predefines.c?rev=251786&view=auto ============================================================================== --- cfe/trunk/test/Preprocessor/elfiamcu-predefines.c (added) +++ cfe/trunk/test/Preprocessor/elfiamcu-predefines.c Mon Nov 2 03:54:17 2015 @@ -0,0 +1,5 @@ +// RUN: %clang_cc1 -E -dM -triple i586-intel-elfiamcu | FileCheck %s + +// CHECK: #define __iamcu +// CHECK: #define __iamcu__ + _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
