Index: llvm/trunk/lib/Target/Mips/MipsCallLowering.cpp
===================================================================
--- llvm/trunk/lib/Target/Mips/MipsCallLowering.cpp
+++ llvm/trunk/lib/Target/Mips/MipsCallLowering.cpp
@@ -508,7 +508,9 @@
   for (auto &Arg : Info.OrigArgs) {
     if (!isSupportedType(Arg.Ty))
       return false;
-    if (Arg.Flags[0].isByVal() || Arg.Flags[0].isSRet())
+    if (Arg.Flags[0].isByVal())
+      return false;
+    if (Arg.Flags[0].isSRet() && !Arg.Ty->isPointerTy())
       return false;
   }
 
Index: llvm/trunk/test/CodeGen/Mips/GlobalISel/irtranslator/sret_pointer.ll
===================================================================
--- llvm/trunk/test/CodeGen/Mips/GlobalISel/irtranslator/sret_pointer.ll
+++ llvm/trunk/test/CodeGen/Mips/GlobalISel/irtranslator/sret_pointer.ll
@@ -0,0 +1,39 @@
+; NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
+; RUN: llc -O0 -mtriple=mipsel-linux-gnu -global-isel -stop-after=irtranslator -verify-machineinstrs %s -o - | FileCheck %s -check-prefixes=MIPS32
+
+%struct.S = type { i32, i32 }
+
+define void @ZeroInit(%struct.S* noalias sret %agg.result) {
+  ; MIPS32-LABEL: name: ZeroInit
+  ; MIPS32: bb.1.entry:
+  ; MIPS32:   liveins: $a0
+  ; MIPS32:   [[COPY:%[0-9]+]]:_(p0) = COPY $a0
+  ; MIPS32:   [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
+  ; MIPS32:   [[COPY1:%[0-9]+]]:_(p0) = COPY [[COPY]](p0)
+  ; MIPS32:   G_STORE [[C]](s32), [[COPY1]](p0) :: (store 4 into %ir.x)
+  ; MIPS32:   [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 4
+  ; MIPS32:   [[GEP:%[0-9]+]]:_(p0) = G_GEP [[COPY]], [[C1]](s32)
+  ; MIPS32:   G_STORE [[C]](s32), [[GEP]](p0) :: (store 4 into %ir.y)
+  ; MIPS32:   RetRA
+entry:
+  %x = getelementptr inbounds %struct.S, %struct.S* %agg.result, i32 0, i32 0
+  store i32 0, i32* %x, align 4
+  %y = getelementptr inbounds %struct.S, %struct.S* %agg.result, i32 0, i32 1
+  store i32 0, i32* %y, align 4
+  ret void
+}
+
+define void @CallZeroInit(%struct.S* noalias sret %agg.result) {
+  ; MIPS32-LABEL: name: CallZeroInit
+  ; MIPS32: bb.1.entry:
+  ; MIPS32:   liveins: $a0
+  ; MIPS32:   [[COPY:%[0-9]+]]:_(p0) = COPY $a0
+  ; MIPS32:   ADJCALLSTACKDOWN 16, 0, implicit-def $sp, implicit $sp
+  ; MIPS32:   $a0 = COPY [[COPY]](p0)
+  ; MIPS32:   JAL @ZeroInit, csr_o32, implicit-def $ra, implicit-def $sp, implicit $a0
+  ; MIPS32:   ADJCALLSTACKUP 16, 0, implicit-def $sp, implicit $sp
+  ; MIPS32:   RetRA
+entry:
+  call void @ZeroInit(%struct.S* sret %agg.result)
+  ret void
+}
Index: llvm/trunk/test/CodeGen/Mips/GlobalISel/llvm-ir/sret_pointer.ll
===================================================================
--- llvm/trunk/test/CodeGen/Mips/GlobalISel/llvm-ir/sret_pointer.ll
+++ llvm/trunk/test/CodeGen/Mips/GlobalISel/llvm-ir/sret_pointer.ll
@@ -0,0 +1,38 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc  -O0 -mtriple=mipsel-linux-gnu -global-isel  -verify-machineinstrs %s -o -| FileCheck %s -check-prefixes=MIPS32
+
+%struct.S = type { i32, i32 }
+
+define void @ZeroInit(%struct.S* noalias sret %agg.result) {
+; MIPS32-LABEL: ZeroInit:
+; MIPS32:       # %bb.0: # %entry
+; MIPS32-NEXT:    ori $1, $zero, 0
+; MIPS32-NEXT:    sw $1, 0($4)
+; MIPS32-NEXT:    sw $1, 4($4)
+; MIPS32-NEXT:    jr $ra
+; MIPS32-NEXT:    nop
+entry:
+  %x = getelementptr inbounds %struct.S, %struct.S* %agg.result, i32 0, i32 0
+  store i32 0, i32* %x, align 4
+  %y = getelementptr inbounds %struct.S, %struct.S* %agg.result, i32 0, i32 1
+  store i32 0, i32* %y, align 4
+  ret void
+}
+
+define void @CallZeroInit(%struct.S* noalias sret %agg.result) {
+; MIPS32-LABEL: CallZeroInit:
+; MIPS32:       # %bb.0: # %entry
+; MIPS32-NEXT:    addiu $sp, $sp, -24
+; MIPS32-NEXT:    .cfi_def_cfa_offset 24
+; MIPS32-NEXT:    sw $ra, 20($sp) # 4-byte Folded Spill
+; MIPS32-NEXT:    .cfi_offset 31, -4
+; MIPS32-NEXT:    jal ZeroInit
+; MIPS32-NEXT:    nop
+; MIPS32-NEXT:    lw $ra, 20($sp) # 4-byte Folded Reload
+; MIPS32-NEXT:    addiu $sp, $sp, 24
+; MIPS32-NEXT:    jr $ra
+; MIPS32-NEXT:    nop
+entry:
+  call void @ZeroInit(%struct.S* sret %agg.result)
+  ret void
+}