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-rw-r--r--llvm/lib/Support/Triple.cpp29
1 files changed, 21 insertions, 8 deletions
diff --git a/llvm/lib/Support/Triple.cpp b/llvm/lib/Support/Triple.cpp
index dfe719d..32fabd4 100644
--- a/llvm/lib/Support/Triple.cpp
+++ b/llvm/lib/Support/Triple.cpp
@@ -572,14 +572,27 @@ static Triple::ObjectFormatType getDefaultFormat(const Triple &T) {
/// This stores the string representation and parses the various pieces into
/// enum members.
Triple::Triple(const Twine &Str)
- : Data(Str.str()),
- Arch(parseArch(getArchName())),
- SubArch(parseSubArch(getArchName())),
- Vendor(parseVendor(getVendorName())),
- OS(parseOS(getOSName())),
- Environment(parseEnvironment(getEnvironmentName())),
- ObjectFormat(parseFormat(getEnvironmentName())) {
- if (ObjectFormat == Triple::UnknownObjectFormat)
+ : Data(Str.str()), Arch(UnknownArch), SubArch(NoSubArch),
+ Vendor(UnknownVendor), OS(UnknownOS), Environment(UnknownEnvironment),
+ ObjectFormat(UnknownObjectFormat) {
+ // Do minimal parsing by hand here.
+ SmallVector<StringRef, 4> Components;
+ StringRef(Data).split(Components, '-', /*MaxSplit*/ 3);
+ if (Components.size() > 0) {
+ Arch = parseArch(Components[0]);
+ SubArch = parseSubArch(Components[0]);
+ if (Components.size() > 1) {
+ Vendor = parseVendor(Components[1]);
+ if (Components.size() > 2) {
+ OS = parseOS(Components[2]);
+ if (Components.size() > 3) {
+ Environment = parseEnvironment(Components[3]);
+ ObjectFormat = parseFormat(Components[3]);
+ }
+ }
+ }
+ }
+ if (ObjectFormat == UnknownObjectFormat)
ObjectFormat = getDefaultFormat(*this);
}