[Driver] Use llvm::Triple methods to handle -EL and -EB.

Add a test for ppc64(le), which wasn't handled before.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@241528 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Driver/Driver.cpp b/lib/Driver/Driver.cpp
index b9dc35d6219a61da3482670c0536f74f24544f2d..c23768e686056cedfa6ac658f37be88332576b31 100644 (file)
--- a/lib/Driver/Driver.cpp
+++ b/lib/Driver/Driver.cpp
@@ -1932,19 +1932,13 @@ static llvm::Triple computeTargetTriple(StringRef DefaultTargetTriple,
   if (Arg *A = Args.getLastArg(options::OPT_mlittle_endian,
                                options::OPT_mbig_endian)) {
     if (A->getOption().matches(options::OPT_mlittle_endian)) {
-      if (Target.getArch() == llvm::Triple::mips)
-        Target.setArch(llvm::Triple::mipsel);
-      else if (Target.getArch() == llvm::Triple::mips64)
-        Target.setArch(llvm::Triple::mips64el);
-      else if (Target.getArch() == llvm::Triple::aarch64_be)
-        Target.setArch(llvm::Triple::aarch64);
+      llvm::Triple LE = Target.getLittleEndianArchVariant();
+      if (LE.getArch() != llvm::Triple::UnknownArch)
+        Target = std::move(LE);
     } else {
-      if (Target.getArch() == llvm::Triple::mipsel)
-        Target.setArch(llvm::Triple::mips);
-      else if (Target.getArch() == llvm::Triple::mips64el)
-        Target.setArch(llvm::Triple::mips64);
-      else if (Target.getArch() == llvm::Triple::aarch64)
-        Target.setArch(llvm::Triple::aarch64_be);
+      llvm::Triple BE = Target.getBigEndianArchVariant();
+      if (BE.getArch() != llvm::Triple::UnknownArch)
+        Target = std::move(BE);
     }
   }
 

diff --git a/test/Driver/ppc-endian.c b/test/Driver/ppc-endian.c
new file mode 100644 (file)
index 0000000..4d8db38
--- /dev/null
+++ b/test/Driver/ppc-endian.c
@@ -0,0 +1,9 @@
+// RUN: %clang -target powerpc64le -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-LE %s
+// RUN: %clang -target powerpc64le -mlittle-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-LE %s
+// RUN: %clang -target powerpc64 -mlittle-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-LE %s
+// CHECK-LE: "-cc1"{{.*}} "-triple" "powerpc64le{{.*}}"
+
+// RUN: %clang -target powerpc64 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE %s
+// RUN: %clang -target powerpc64 -mbig-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE %s
+// RUN: %clang -target powerpc64le -mbig-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE %s
+// CHECK-BE: "-cc1"{{.*}} "-triple" "powerpc64{{.*}}"