[Driver][Mips] Check MIPS CPU name provided to the Clang driver.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@212260 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Basic/Targets.cpp b/lib/Basic/Targets.cpp
index 424ce6c54d6932fa36c8763dc07616208bbdd03b..81a00038ba3027c1dc5f6be678aa0b52849c8811 100644 (file)
--- a/lib/Basic/Targets.cpp
+++ b/lib/Basic/Targets.cpp
@@ -5305,8 +5305,17 @@ public:
 
   StringRef getABI() const override { return ABI; }
   bool setCPU(const std::string &Name) override {
+    bool IsMips32 = getTriple().getArch() == llvm::Triple::mips ||
+                    getTriple().getArch() == llvm::Triple::mipsel;
     CPU = Name;
-    return true;
+    return llvm::StringSwitch<bool>(Name)
+        .Case("mips32", IsMips32)
+        .Case("mips32r2", IsMips32)
+        .Case("mips32r6", IsMips32)
+        .Case("mips64", true)
+        .Case("mips64r2", true)
+        .Case("mips64r6", true)
+        .Default(false);
   }
   const std::string& getCPU() const { return CPU; }
   void getDefaultFeatures(llvm::StringMap<bool> &Features) const override {

diff --git a/test/Driver/mips-abi.c b/test/Driver/mips-abi.c
index 8858e2ba6e30509eb125a375c0168959bca29eb2..c17a4be968934eb4e5eaf5cb97f2b075177a26aa 100644 (file)
--- a/test/Driver/mips-abi.c
+++ b/test/Driver/mips-abi.c
@@ -85,3 +85,13 @@
 // RUN:   | FileCheck -check-prefix=MIPS-ARCH-64R2 %s
 // MIPS-ARCH-64R2: "-target-cpu" "mips64r2"
 // MIPS-ARCH-64R2: "-target-abi" "n64"
+//
+// RUN: not %clang -target mips64-linux-gnu -c %s \
+// RUN:        -march=mips32 2>&1 \
+// RUN:   | FileCheck -check-prefix=MIPS-ARCH-6432 %s
+// MIPS-ARCH-6432: error: unknown target CPU 'mips32'
+//
+// RUN: not %clang -target mips-linux-gnu -c %s \
+// RUN:        -march=unknown 2>&1 \
+// RUN:   | FileCheck -check-prefix=MIPS-ARCH-UNKNOWN %s
+// MIPS-ARCH-UNKNOWN: error: unknown target CPU 'unknown'