Add various coarse bit-width architecture predicates to llvm::Triple.
These are very useful for frontends and other utilities reasoning about
or selecting between triples.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149353 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/Triple.cpp b/lib/Support/Triple.cpp
index e69d438..d726fa3 100644
--- a/lib/Support/Triple.cpp
+++ b/lib/Support/Triple.cpp
@@ -665,3 +665,52 @@
void Triple::setOSAndEnvironmentName(StringRef Str) {
setTriple(getArchName() + "-" + getVendorName() + "-" + Str);
}
+
+static unsigned getArchPointerBitWidth(llvm::Triple::ArchType Arch) {
+ switch (Arch) {
+ case llvm::Triple::UnknownArch:
+ case llvm::Triple::InvalidArch:
+ return 0;
+
+ case llvm::Triple::msp430:
+ return 16;
+
+ case llvm::Triple::amdil:
+ case llvm::Triple::arm:
+ case llvm::Triple::cellspu:
+ case llvm::Triple::hexagon:
+ case llvm::Triple::le32:
+ case llvm::Triple::mblaze:
+ case llvm::Triple::mips:
+ case llvm::Triple::mipsel:
+ case llvm::Triple::ppc:
+ case llvm::Triple::ptx32:
+ case llvm::Triple::sparc:
+ case llvm::Triple::tce:
+ case llvm::Triple::thumb:
+ case llvm::Triple::x86:
+ case llvm::Triple::xcore:
+ return 32;
+
+ case llvm::Triple::mips64:
+ case llvm::Triple::mips64el:
+ case llvm::Triple::ppc64:
+ case llvm::Triple::ptx64:
+ case llvm::Triple::sparcv9:
+ case llvm::Triple::x86_64:
+ return 64;
+ }
+ llvm_unreachable("Invalid architecture value");
+}
+
+bool Triple::isArch64Bit() const {
+ return getArchPointerBitWidth(getArch()) == 64;
+}
+
+bool Triple::isArch32Bit() const {
+ return getArchPointerBitWidth(getArch()) == 32;
+}
+
+bool Triple::isArch16Bit() const {
+ return getArchPointerBitWidth(getArch()) == 16;
+}