Subzero, MIPS32: Cross-testing enabled for MIPS32

Makefile.standalone

Index: Makefile.standalone
diff --git a/Makefile.standalone b/Makefile.standalone
index e40e4a3b292bb83afd4417f18f5f39ab1c1bbc5c..f972ccf7bc66b4165fa32e33f2bf83061132ebd2 100644
--- a/Makefile.standalone
+++ b/Makefile.standalone
@@ -513,13 +513,16 @@ $(OBJDIR)/unittest/AssemblerX8664: $(OBJDIR)/unittest
 
 RT_SRC := runtime/szrt.c runtime/szrt_ll.ll runtime/szrt_profiler.c \
           runtime/szrt_asm_x8632.s runtime/szrt_asm_x8664.s \
-          runtime/szrt_asm_arm32.s runtime/szrt_asan.c
+          runtime/szrt_asm_arm32.s \
+          runtime/szrt_asm_mips32.s \
+          runtime/szrt_asan.c
 RT_OBJ := build/runtime/szrt_native_x8632.o build/runtime/szrt_sb_x8632.o \
           build/runtime/szrt_nonsfi_x8632.o \
           build/runtime/szrt_native_x8664.o build/runtime/szrt_sb_x8664.o \
           build/runtime/szrt_nonsfi_x8664.o \
           build/runtime/szrt_native_arm32.o build/runtime/szrt_sb_arm32.o \
           build/runtime/szrt_nonsfi_arm32.o \
+          build/runtime/szrt_native_mips32.o build/runtime/szrt_sb_mips32.o \
           build/runtime/szrt_asan_x8632.o build/runtime/szrt_asan_x8664.o \
           build/runtime/szrt_asan_arm32.o
 
@@ -552,7 +555,7 @@ check-xtest check-xtest-lite: $(OBJDIR)/pnacl-sz make_symlink runtime \
           $(FORCEASM_FLAG) \
           $(FORCEASM_XTEST_EXCLUDES) \
           -i x8664,native,sse2 \
-          -i mips32,xxx
+          -i mips32,native,Om1,simple_loop
 	PNACL_BIN_PATH=$(PNACL_BIN_PATH) \
 	$(LLVM_SRC_PATH)/utils/lit/lit.py -sv $(CHECK_XTEST_TESTS)
 else
@@ -631,6 +634,14 @@ ifeq ($(TARGET),arm32)
   SETUP=SetupGccArmOpt
   SPEC := --filetype=obj
 endif
+ifeq ($(TARGET),mips32)
+  # native_client/tests/spec2k/{Makefile.common,run_all.sh} do not currently
+  # have MIPS configs, so those would need to be added for proper Subzero
+  # testing.
+  TARGETFLAG=mips32
+  SETUP=SetupGccMipsOpt
+  SPEC := --filetype=asm
+endif
 SPECFLAGS := -O2
 SPECRUN := --run
 %.spec2k: % $(OBJDIR)/pnacl-sz make_symlink runtime