[Mips] Make "emulation" option less dependent on the "-target" option.

Now it is possible to have mips-linux-gnu-ld executable and link MIPS 64-bit
little-endian binaries providing -melf64ltsmip command line argument.

llvm-svn: 246335

1 files changed, 10 insertions, 0 deletions

diff --git a/lld/unittests/DriverTests/GnuLdDriverTest.cpp b/lld/unittests/DriverTests/GnuLdDriverTest.cpp
index 5c2756331f4..102dcc0e4b8 100644
--- a/lld/unittests/DriverTests/GnuLdDriverTest.cpp
+++ b/lld/unittests/DriverTests/GnuLdDriverTest.cpp
@@ -199,6 +199,16 @@ TEST_F(GnuLdParserTest, AsNeeded) {
   EXPECT_FALSE(cast<FileNode>(nodes[3].get())->asNeeded());
 }
 
+// Emulation
+
+TEST_F(GnuLdParserTest, Emulation) {
+  EXPECT_TRUE(parse("mips-linux-gnu-ld", "a.o", "-m", "elf64ltsmip", nullptr));
+  EXPECT_EQ(Triple::mips64el, _ctx->getTriple().getArch());
+  EXPECT_TRUE(
+      parse("mips64el-linux-gnu-ld", "a.o", "-m", "elf32btsmip", nullptr));
+  EXPECT_EQ(Triple::mips, _ctx->getTriple().getArch());
+}
+
 // Linker script
 
 TEST_F(LinkerScriptTest, Input) {