Introduce helpers to compute the 32-bit varaints and 64-bit variants of
some architectures. These are useful for interacting with multiarch or
bi-arch GCC (or GCC-based) toolchains.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149895 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/Triple.cpp b/lib/Support/Triple.cpp
index 7433c0a..7c4da12 100644
--- a/lib/Support/Triple.cpp
+++ b/lib/Support/Triple.cpp
@@ -753,3 +753,77 @@
bool Triple::isArch16Bit() const {
return getArchPointerBitWidth(getArch()) == 16;
}
+
+Triple Triple::get32BitArchVariant() const {
+ Triple T(*this);
+ switch (getArch()) {
+ case Triple::UnknownArch:
+ case Triple::InvalidArch:
+ case Triple::msp430:
+ T.setArch(UnknownArch);
+ break;
+
+ case Triple::amdil:
+ case Triple::arm:
+ case Triple::cellspu:
+ case Triple::hexagon:
+ case Triple::le32:
+ case Triple::mblaze:
+ case Triple::mips:
+ case Triple::mipsel:
+ case Triple::ppc:
+ case Triple::ptx32:
+ case Triple::sparc:
+ case Triple::tce:
+ case Triple::thumb:
+ case Triple::x86:
+ case Triple::xcore:
+ // Already 32-bit.
+ break;
+
+ case Triple::mips64: T.setArch(Triple::mips); break;
+ case Triple::mips64el: T.setArch(Triple::mipsel); break;
+ case Triple::ppc64: T.setArch(Triple::ppc); break;
+ case Triple::ptx64: T.setArch(Triple::ptx32); break;
+ case Triple::sparcv9: T.setArch(Triple::sparc); break;
+ case Triple::x86_64: T.setArch(Triple::x86); break;
+ }
+ return T;
+}
+
+Triple Triple::get64BitArchVariant() const {
+ Triple T(*this);
+ switch (getArch()) {
+ case Triple::InvalidArch:
+ case Triple::UnknownArch:
+ case Triple::amdil:
+ case Triple::arm:
+ case Triple::cellspu:
+ case Triple::hexagon:
+ case Triple::le32:
+ case Triple::mblaze:
+ case Triple::msp430:
+ case Triple::tce:
+ case Triple::thumb:
+ case Triple::xcore:
+ T.setArch(UnknownArch);
+ break;
+
+ case Triple::mips64:
+ case Triple::mips64el:
+ case Triple::ppc64:
+ case Triple::ptx64:
+ case Triple::sparcv9:
+ case Triple::x86_64:
+ // Already 64-bit.
+ break;
+
+ case Triple::mips: T.setArch(Triple::mips64); break;
+ case Triple::mipsel: T.setArch(Triple::mips64el); break;
+ case Triple::ppc: T.setArch(Triple::ppc64); break;
+ case Triple::ptx32: T.setArch(Triple::ptx64); break;
+ case Triple::sparc: T.setArch(Triple::sparcv9); break;
+ case Triple::x86: T.setArch(Triple::x86_64); break;
+ }
+ return T;
+}