[LLD][MinGW] Handle MIPS machine (llvm#157742)

Author: hpoussin

lld/MinGW/Driver.cpp

@@ -451,6 +451,8 @@ bool link(ArrayRef<const char *> argsArr, llvm::raw_ostream &stdoutOS,
       add("-machine:arm64ec");
     else if (s == "arm64xpe")
       add("-machine:arm64x");
+    else if (s == "mipspe")
+      add("-machine:mips");
     else
       error("unknown parameter: -m" + s);
   }

lld/test/MinGW/driver.test

@@ -37,6 +37,12 @@ ARM64X-SAME: -machine:arm64x
 ARM64X-SAME: -alternatename:__image_base__=__ImageBase
 ARM64X-SAME: foo.o
 
+RUN: ld.lld -### foo.o -m mipspe 2>&1 | FileCheck -check-prefix=MIPS %s
+MIPS:      -out:a.exe
+MIPS-SAME: -machine:mips
+MIPS-SAME: -alternatename:__image_base__=__ImageBase
+MIPS-SAME: foo.o
+
 RUN: ld.lld -### foo.o -m i386pep -shared 2>&1 | FileCheck -check-prefix=SHARED %s
 RUN: ld.lld -### foo.o -m i386pep --shared 2>&1 | FileCheck -check-prefix=SHARED %s
 RUN: ld.lld -### foo.o -m i386pep --dll 2>&1 | FileCheck -check-prefix=SHARED %s