Subzero, MIPS32: Enable MIPS support in lit tests

tests_lit/llvm2ice_tests/commutativity.ll

Index: tests_lit/llvm2ice_tests/commutativity.ll
diff --git a/tests_lit/llvm2ice_tests/commutativity.ll b/tests_lit/llvm2ice_tests/commutativity.ll
index a8cecccdfb18a1d783c0bee9cd61c4b43a0c6178..ca5f6c76182d3e75882f3b9c97137ab91c32656e 100644
--- a/tests_lit/llvm2ice_tests/commutativity.ll
+++ b/tests_lit/llvm2ice_tests/commutativity.ll
@@ -6,6 +6,12 @@
 ; RUN:   --target x8632 -i %s --args -O2 \
 ; RUN:   | %if --need=target_X8632 --command FileCheck %s
 
+; RUN: %if --need=target_MIPS32 --need=allow_dump \
+; RUN:   --command %p2i --filetype=asm --assemble --disassemble --target \
+; RUN:   mips32 -i %s --args -O2 -allow-externally-defined-symbols \
+; RUN:   | %if --need=target_MIPS32 --need=allow_dump \
+; RUN:   --command FileCheck --check-prefix MIPS32 %s
+
 define internal i32 @integerAddLeft(i32 %a, i32 %b) {
 entry:
   %tmp = add i32 %a, %b
@@ -17,6 +23,10 @@ entry:
 ; CHECK-NEXT: mov {{e..}},DWORD PTR
 ; CHECK-NEXT: add {{e..}},{{e..}}
 ; CHECK-NEXT: add {{e..}},{{e..}}
+; MIPS32-LABEL: integerAddLeft
+; MIPS32: 	move	v0,a0
+; MIPS32: 	addu	v0,v0,a1
+; MIPS32: 	addu	a0,a0,v0
 
 define internal i32 @integerAddRight(i32 %a, i32 %b) {
 entry:
@@ -29,6 +39,10 @@ entry:
 ; CHECK-NEXT: mov {{e..}},DWORD PTR
 ; CHECK-NEXT: add {{e..}},{{e..}}
 ; CHECK-NEXT: add {{e..}},{{e..}}
+; MIPS32-LABEL: integerAddRight
+; MIPS32: 	move	v0,a1
+; MIPS32: 	addu	a0,a0,v0
+; MIPS32: 	addu	a1,a1,a0
 
 define internal i32 @integerMultiplyLeft(i32 %a, i32 %b) {
 entry:
@@ -41,6 +55,10 @@ entry:
 ; CHECK-NEXT: mov {{e..}},DWORD PTR
 ; CHECK-NEXT: imul {{e..}},{{e..}}
 ; CHECK-NEXT: imul {{e..}},{{e..}}
+; MIPS32-LABEL: integerMultiplyLeft
+; MIPS32: 	move	v0,a0
+; MIPS32: 	mul	v0,v0,a1
+; MIPS32: 	mul	a0,a0,v0
 
 define internal i32 @integerMultiplyRight(i32 %a, i32 %b) {
 entry:
@@ -53,6 +71,10 @@ entry:
 ; CHECK-NEXT: mov {{e..}},DWORD PTR
 ; CHECK-NEXT: imul {{e..}},{{e..}}
 ; CHECK-NEXT: imul {{e..}},{{e..}}
+; MIPS32-LABEL: integerMultiplyRight
+; MIPS32: 	move	v0,a1
+; MIPS32: 	mul	a0,a0,v0
+; MIPS32: 	mul	a1,a1,a0
 
 define internal float @floatAddLeft(float %a, float %b) {
 entry:
@@ -66,6 +88,10 @@ entry:
 ; CHECK-NEXT: movss xmm1,DWORD PTR
 ; CHECK-NEXT: addss xmm1,xmm0
 ; CHECK-NEXT: addss xmm0,xmm1
+; MIPS32-LABEL: floatAddLeft
+; MIPS32: 	mov.s	$f0,$f12
+; MIPS32: 	add.s	$f0,$f0,$f14
+; MIPS32: 	add.s	$f12,$f12,$f0
 
 define internal float @floatAddRight(float %a, float %b) {
 entry:
@@ -79,6 +105,10 @@ entry:
 ; CHECK-NEXT: movss xmm1,DWORD PTR
 ; CHECK-NEXT: addss xmm0,xmm1
 ; CHECK-NEXT: addss xmm1,xmm0
+; MIPS32-LABEL: floatAddRight
+; MIPS32: 	mov.s	$f0,$f14
+; MIPS32: 	add.s	$f12,$f12,$f0
+; MIPS32: 	add.s	$f14,$f14,$f12
 
 define internal float @floatMultiplyLeft(float %a, float %b) {
 entry:
@@ -92,6 +122,10 @@ entry:
 ; CHECK-NEXT: movss xmm1,DWORD PTR
 ; CHECK-NEXT: mulss xmm1,xmm0
 ; CHECK-NEXT: mulss xmm0,xmm1
+; MIPS32-LABEL: floatMultiplyLeft
+; MIPS32: 	mov.s	$f0,$f12
+; MIPS32: 	mul.s	$f0,$f0,$f14
+; MIPS32: 	mul.s	$f12,$f12,$f0
 
 define internal float @floatMultiplyRight(float %a, float %b) {
 entry:
@@ -105,3 +139,7 @@ entry:
 ; CHECK-NEXT: movss xmm1,DWORD PTR
 ; CHECK-NEXT: mulss xmm0,xmm1
 ; CHECK-NEXT: mulss xmm1,xmm0
+; MIPS32-LABEL: floatMultiplyRight
+; MIPS32: 	mov.s	$f0,$f14
+; MIPS32: 	mul.s	$f12,$f12,$f0
+; MIPS32: 	mul.s	$f14,$f14,$f12