[Subzero][MIPS32] Add LowerStore implementation

tests_lit/llvm2ice_tests/store.ll

Index: tests_lit/llvm2ice_tests/store.ll
diff --git a/tests_lit/llvm2ice_tests/store.ll b/tests_lit/llvm2ice_tests/store.ll
index 94931fba6f83a33122964252f4731b2e6c0c9400..c1d027511ebe54ec5d095d0faf487452fad567be 100644
--- a/tests_lit/llvm2ice_tests/store.ll
+++ b/tests_lit/llvm2ice_tests/store.ll
@@ -4,6 +4,13 @@
 
 ; RUN: %p2i -i %s --args --verbose inst -threads=0 | FileCheck %s
 
+; RUN: %if --need=target_MIPS32 --need=allow_dump \
+; RUN:   --command %p2i --filetype=asm --assemble \
+; RUN:   --disassemble --target mips32 -i %s --args -O2 --skip-unimplemented \
+; RUN:   -allow-externally-defined-symbols \
+; RUN:   | %if --need=target_MIPS32 --need=allow_dump \
+; RUN:   --command FileCheck --check-prefix MIPS32 %s
+
 define internal void @store_i64(i32 %addr_arg) {
 entry:
   %__1 = inttoptr i32 %addr_arg to i64*
@@ -15,6 +22,11 @@ entry:
 ; CHECK-NEXT:  store i64 1, i64* %addr_arg, align 1
 ; CHECK-NEXT:  ret void
 }
+; MIPS32-LABEL: store_i64
+; MIPS32: li
+; MIPS32: li
+; MIPS32: sw
+; MIPS32: sw
 
 define internal void @store_i32(i32 %addr_arg) {
 entry:
@@ -27,6 +39,9 @@ entry:
 ; CHECK-NEXT:  store i32 1, i32* %addr_arg, align 1
 ; CHECK-NEXT:  ret void
 }
+; MIPS32-LABEL: store_i32
+; MIPS32: li
+; MIPS32: sw
 
 define internal void @store_i16(i32 %addr_arg) {
 entry:
@@ -39,6 +54,9 @@ entry:
 ; CHECK-NEXT:  store i16 1, i16* %addr_arg, align 1
 ; CHECK-NEXT:  ret void
 }
+; MIPS32-LABEL: store_i16
+; MIPS32: li
+; MIPS32: sw
 
 define internal void @store_i8(i32 %addr_arg) {
 entry:
@@ -51,3 +69,6 @@ entry:
 ; CHECK-NEXT:  store i8 1, i8* %addr_arg, align 1
 ; CHECK-NEXT:  ret void
 }
+; MIPS32-LABEL: store_i8
+; MIPS32: li
+; MIPS32: sw