[mips] Add macros _MIPS_ISA and __mips_isa_rev (same expansion as defined by GCC).
Summary: The Linux Kernel is one example of a piece of software that relies on them.
Reviewers: atanasyan
Reviewed By: atanasyan
Differential Revision: http://reviews.llvm.org/D3756
llvm-svn: 210270
diff --git a/clang/lib/Basic/Targets.cpp b/clang/lib/Basic/Targets.cpp
index 3a4f3e6..33b4916 100644
--- a/clang/lib/Basic/Targets.cpp
+++ b/clang/lib/Basic/Targets.cpp
@@ -5228,6 +5228,7 @@
CPU = Name;
return true;
}
+ const std::string& getCPU() const { return CPU; }
void getDefaultFeatures(llvm::StringMap<bool> &Features) const override {
// The backend enables certain ABI's by default according to the
// architecture.
@@ -5452,6 +5453,13 @@
MipsTargetInfoBase::getTargetDefines(Opts, Builder);
Builder.defineMacro("__mips", "32");
+ Builder.defineMacro("_MIPS_ISA", "_MIPS_ISA_MIPS32");
+
+ const std::string& CPUStr = getCPU();
+ if (CPUStr == "mips32")
+ Builder.defineMacro("__mips_isa_rev", "1");
+ else if (CPUStr == "mips32r2")
+ Builder.defineMacro("__mips_isa_rev", "2");
if (ABI == "o32") {
Builder.defineMacro("__mips_o32");
@@ -5587,6 +5595,13 @@
Builder.defineMacro("__mips", "64");
Builder.defineMacro("__mips64");
Builder.defineMacro("__mips64__");
+ Builder.defineMacro("_MIPS_ISA", "_MIPS_ISA_MIPS64");
+
+ const std::string& CPUStr = getCPU();
+ if (CPUStr == "mips64")
+ Builder.defineMacro("__mips_isa_rev", "1");
+ else if (CPUStr == "mips64r2")
+ Builder.defineMacro("__mips_isa_rev", "2");
if (ABI == "n32") {
Builder.defineMacro("__mips_n32");