Index: lib/Target/ARM/ARMLoadStoreOptimizer.cpp
===================================================================
--- lib/Target/ARM/ARMLoadStoreOptimizer.cpp
+++ lib/Target/ARM/ARMLoadStoreOptimizer.cpp
@@ -1027,6 +1027,18 @@
     if (AssumeMisalignedLoadStores && !mayCombineMisaligned(*STI, *MI))
       CanMergeToLSMulti = CanMergeToLSDouble = false;
 
+    // vldm / vstm limit are 32 for S variants, 16 for D variants.
+    unsigned Limit;
+    switch (Opcode) {
+    default:
+      Limit = UINT_MAX;
+      break;
+    case ARM::VLDRD:
+    case ARM::VSTRD:
+      Limit = 16;
+      break;
+    }
+
     // Merge following instructions where possible.
     for (unsigned I = SIndex+1; I < EIndex; ++I, ++Count) {
       int NewOffset = MemOps[I].Offset;
@@ -1036,6 +1048,8 @@
       unsigned Reg = MO.getReg();
       if (Reg == ARM::SP || Reg == ARM::PC)
         break;
+      if (Count == Limit)
+        break;
 
       // See if the current load/store may be part of a multi load/store.
       unsigned RegNum = MO.isUndef() ? std::numeric_limits<unsigned>::max()
Index: test/CodeGen/ARM/load-multiple-opt.ll
===================================================================
--- /dev/null
+++ test/CodeGen/ARM/load-multiple-opt.ll
@@ -0,0 +1,300 @@
+; RUN: llc %s -o - -debug-only=arm-ldst-opt | FileCheck %s
+; CHECK-NOT: vstmia r4, {d15, d16, d17, d18, d19, d20, d21, d22, d23, d24, d25, d26, d27, d28, d29, d30, d31}
+; CHECK:  vstmia r4, {d15, d16, d17, d18, d19, d20, d21, d22, d23, d24, d25, d26, d27, d28, d29, d30}
+; CHECK-NEXT:   vstr  d31, [r4, #128]
+; CHECK:  vstmia  r0, {d4, d5, d6, d7, d8, d9, d10, d11, d12, d13, d14}
+
+target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
+target triple = "thumbv7--linux-android"
+
+%struct.ak = type { %struct.bk }
+%struct.bk = type { %struct.m }
+%struct.m = type { [64 x %struct.bw] }
+%struct.bw = type { double, %struct.ak.1 }
+%struct.ak.1 = type { %struct.bk.2 }
+%struct.bk.2 = type { %struct.m.4 }
+%struct.m.4 = type { [64 x double] }
+%struct.l = type { i8 }
+
+; Function Attrs: ssp uwtable
+define void @_Z2brR1lI1ME(%struct.ak* noalias sret, %struct.l* nocapture readonly dereferenceable(1)) {
+  %3 = alloca %struct.bw, align 8
+  %4 = tail call %struct.ak* @_ZN2akI2bwEC1Ev(%struct.ak* %0)
+  %5 = bitcast %struct.bw* %3 to i8*
+  call void @llvm.lifetime.start.p0i8(i64 520, i8* nonnull %5)
+  %6 = call %struct.bw* @_ZN2bwC1Ed(%struct.bw* nonnull %3, double 2.000000e+00)
+  %7 = bitcast %struct.l* %1 to %struct.bw**
+  %8 = load %struct.bw*, %struct.bw** %7, align 4, !noalias !1
+  %9 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 0
+  %10 = load double, double* %9, align 8
+  %11 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 0
+  %12 = load double, double* %11, align 8
+  %13 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 1
+  %14 = load double, double* %13, align 8
+  %15 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 2
+  %16 = load double, double* %15, align 8
+  %17 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 3
+  %18 = load double, double* %17, align 8
+  %19 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 4
+  %20 = load double, double* %19, align 8
+  %21 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 5
+  %22 = load double, double* %21, align 8
+  %23 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 6
+  %24 = load double, double* %23, align 8
+  %25 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 7
+  %26 = load double, double* %25, align 8
+  %27 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 8
+  %28 = load double, double* %27, align 8
+  %29 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 9
+  %30 = load double, double* %29, align 8
+  %31 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 10
+  %32 = load double, double* %31, align 8
+  %33 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 11
+  %34 = load double, double* %33, align 8
+  %35 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 12
+  %36 = load double, double* %35, align 8
+  %37 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 13
+  %38 = load double, double* %37, align 8
+  %39 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 14
+  %40 = load double, double* %39, align 8
+  %41 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 15
+  %42 = load double, double* %41, align 8
+  %43 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 16
+  %44 = load double, double* %43, align 8
+  %45 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 17
+  %46 = load double, double* %45, align 8
+  %47 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 18
+  %48 = load double, double* %47, align 8
+  %49 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 19
+  %50 = load double, double* %49, align 8
+  %51 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 20
+  %52 = load double, double* %51, align 8
+  %53 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 21
+  %54 = load double, double* %53, align 8
+  %55 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 22
+  %56 = load double, double* %55, align 8
+  %57 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 23
+  %58 = load double, double* %57, align 8
+  %59 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 24
+  %60 = load double, double* %59, align 8
+  %61 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 25
+  %62 = load double, double* %61, align 8
+  %63 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 26
+  %64 = load double, double* %63, align 8
+  %65 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 27
+  %66 = load double, double* %65, align 8
+  %67 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 28
+  %68 = load double, double* %67, align 8
+  %69 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 29
+  %70 = load double, double* %69, align 8
+  %71 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 30
+  %72 = load double, double* %71, align 8
+  %73 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 31
+  %74 = load double, double* %73, align 8
+  %75 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 32
+  %76 = load double, double* %75, align 8
+  %77 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 33
+  %78 = load double, double* %77, align 8
+  %79 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 34
+  %80 = load double, double* %79, align 8
+  %81 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 35
+  %82 = load double, double* %81, align 8
+  %83 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 36
+  %84 = load double, double* %83, align 8
+  %85 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 37
+  %86 = load double, double* %85, align 8
+  %87 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 38
+  %88 = load double, double* %87, align 8
+  %89 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 39
+  %90 = load double, double* %89, align 8
+  %91 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 40
+  %92 = load double, double* %91, align 8
+  %93 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 41
+  %94 = load double, double* %93, align 8
+  %95 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 42
+  %96 = load double, double* %95, align 8
+  %97 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 43
+  %98 = load double, double* %97, align 8
+  %99 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 44
+  %100 = load double, double* %99, align 8
+  %101 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 45
+  %102 = load double, double* %101, align 8
+  %103 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 46
+  %104 = load double, double* %103, align 8
+  %105 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 47
+  %106 = load double, double* %105, align 8
+  %107 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 48
+  %108 = load double, double* %107, align 8
+  %109 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 49
+  %110 = load double, double* %109, align 8
+  %111 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 50
+  %112 = load double, double* %111, align 8
+  %113 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 51
+  %114 = load double, double* %113, align 8
+  %115 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 52
+  %116 = load double, double* %115, align 8
+  %117 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 53
+  %118 = load double, double* %117, align 8
+  %119 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 54
+  %120 = load double, double* %119, align 8
+  %121 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 55
+  %122 = load double, double* %121, align 8
+  %123 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 56
+  %124 = load double, double* %123, align 8
+  %125 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 57
+  %126 = load double, double* %125, align 8
+  %127 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 58
+  %128 = load double, double* %127, align 8
+  %129 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 59
+  %130 = load double, double* %129, align 8
+  %131 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 60
+  %132 = load double, double* %131, align 8
+  %133 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 61
+  %134 = load double, double* %133, align 8
+  %135 = getelementptr inbounds %struct.bw, %struct.bw* %8, i32 2, i32 1, i32 0, i32 0, i32 0, i32 62
+  %136 = load double, double* %135, align 8
+  %137 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 0
+  store double %10, double* %137, align 8
+  %138 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 0
+  store double %12, double* %138, align 8
+  %139 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 1
+  store double %14, double* %139, align 8
+  %140 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 2
+  store double %16, double* %140, align 8
+  %141 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 3
+  store double %18, double* %141, align 8
+  %142 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 4
+  store double %20, double* %142, align 8
+  %143 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 5
+  store double %22, double* %143, align 8
+  %144 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 6
+  store double %24, double* %144, align 8
+  %145 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 7
+  store double %26, double* %145, align 8
+  %146 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 8
+  store double %28, double* %146, align 8
+  %147 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 9
+  store double %30, double* %147, align 8
+  %148 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 10
+  store double %32, double* %148, align 8
+  %149 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 11
+  store double %34, double* %149, align 8
+  %150 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 12
+  store double %36, double* %150, align 8
+  %151 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 13
+  store double %38, double* %151, align 8
+  %152 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 14
+  store double %40, double* %152, align 8
+  %153 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 15
+  store double %42, double* %153, align 8
+  %154 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 16
+  store double %44, double* %154, align 8
+  %155 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 17
+  store double %46, double* %155, align 8
+  %156 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 18
+  store double %48, double* %156, align 8
+  %157 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 19
+  store double %50, double* %157, align 8
+  %158 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 20
+  store double %52, double* %158, align 8
+  %159 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 21
+  store double %54, double* %159, align 8
+  %160 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 22
+  store double %56, double* %160, align 8
+  %161 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 23
+  store double %58, double* %161, align 8
+  %162 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 24
+  store double %60, double* %162, align 8
+  %163 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 25
+  store double %62, double* %163, align 8
+  %164 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 26
+  store double %64, double* %164, align 8
+  %165 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 27
+  store double %66, double* %165, align 8
+  %166 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 28
+  store double %68, double* %166, align 8
+  %167 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 29
+  store double %70, double* %167, align 8
+  %168 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 30
+  store double %72, double* %168, align 8
+  %169 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 31
+  store double %74, double* %169, align 8
+  %170 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 32
+  store double %76, double* %170, align 8
+  %171 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 33
+  store double %78, double* %171, align 8
+  %172 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 34
+  store double %80, double* %172, align 8
+  %173 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 35
+  store double %82, double* %173, align 8
+  %174 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 36
+  store double %84, double* %174, align 8
+  %175 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 37
+  store double %86, double* %175, align 8
+  %176 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 38
+  store double %88, double* %176, align 8
+  %177 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 39
+  store double %90, double* %177, align 8
+  %178 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 40
+  store double %92, double* %178, align 8
+  %179 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 41
+  store double %94, double* %179, align 8
+  %180 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 42
+  store double %96, double* %180, align 8
+  %181 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 43
+  store double %98, double* %181, align 8
+  %182 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 44
+  store double %100, double* %182, align 8
+  %183 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 45
+  store double %102, double* %183, align 8
+  %184 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 46
+  store double %104, double* %184, align 8
+  %185 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 47
+  store double %106, double* %185, align 8
+  %186 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 48
+  store double %108, double* %186, align 8
+  %187 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 49
+  store double %110, double* %187, align 8
+  %188 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 50
+  store double %112, double* %188, align 8
+  %189 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 51
+  store double %114, double* %189, align 8
+  %190 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 52
+  store double %116, double* %190, align 8
+  %191 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 53
+  store double %118, double* %191, align 8
+  %192 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 54
+  store double %120, double* %192, align 8
+  %193 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 55
+  store double %122, double* %193, align 8
+  %194 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 56
+  store double %124, double* %194, align 8
+  %195 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 57
+  store double %126, double* %195, align 8
+  %196 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 58
+  store double %128, double* %196, align 8
+  %197 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 59
+  store double %130, double* %197, align 8
+  %198 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 60
+  store double %132, double* %198, align 8
+  %199 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 61
+  store double %134, double* %199, align 8
+  %200 = getelementptr inbounds %struct.ak, %struct.ak* %0, i32 0, i32 0, i32 0, i32 0, i32 undef, i32 1, i32 0, i32 0, i32 0, i32 62
+  store double %136, double* %200, align 8
+  call void @llvm.lifetime.end.p0i8(i64 520, i8* nonnull %5)
+  ret void
+}
+
+declare %struct.ak* @_ZN2akI2bwEC1Ev(%struct.ak* returned)
+
+declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture)
+
+declare %struct.bw* @_ZN2bwC1Ed(%struct.bw* returned, double)
+
+declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture)
+
+!1 = !{!2, !4}
+!2 = distinct !{!2, !3, !"_ZNK1M2asEi: argument 0"}
+!3 = distinct !{!3, !"_ZNK1M2asEi"}
+!4 = distinct !{!4, !5, !"_ZNK1lI1ME3fooEi: argument 0"}
+!5 = distinct !{!5, !"_ZNK1lI1ME3fooEi"}
Index: test/CodeGen/ARM/load_store_opt_reg_limit.mir
===================================================================
--- /dev/null
+++ test/CodeGen/ARM/load_store_opt_reg_limit.mir
@@ -0,0 +1,51 @@
+# RUN: llc -mtriple=thumbv7--linux-andorid -verify-machineinstrs -run-pass=arm-ldst-opt %s -o - | FileCheck %s
+--- |
+  target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
+  target triple = "thumbv7--linux-android"
+
+  define void @_Z2brR1lI1ME() {
+    ret void
+  }
+
+...
+---
+#CHECK: _Z2brR1lI1ME
+name:            _Z2brR1lI1ME
+# CHECK: VSTMDIA $r4, 14, $noreg,  $d15,  $d16,  $d17,  $d18,  $d19,  $d20,  $d21,  $d22,  $d23,  $d24,  $d25,  $d26,  $d27,  $d28,  $d29,  $d30
+# CHECK-NEXT: VSTRD  $d31, $r4, 32, 14, $noreg :: (store 8)
+# CHECK:     VSTMDIA killed $r0, 14, $noreg,  $d4,  $d5,  $d6,  $d7,  $d8,  $d9,  $d10,  $d11,  $d12,  $d13,  $d14
+body:             |
+  bb.0:
+    VSTRD  $d15, $r4, 0, 14, $noreg :: (store 8)
+    VSTRD  $d16, $r4, 2, 14, $noreg :: (store 8)
+    VSTRD  $d17, $r4, 4, 14, $noreg :: (store 8)
+    VSTRD  $d18, $r4, 6, 14, $noreg :: (store 8)
+    VSTRD  $d19, $r4, 8, 14, $noreg :: (store 8)
+    VSTRD  $d20, $r4, 10, 14, $noreg :: (store 8)
+    VSTRD  $d21, $r4, 12, 14, $noreg :: (store 8)
+    VSTRD  $d22, $r4, 14, 14, $noreg :: (store 8)
+    VSTRD  $d23, $r4, 16, 14, $noreg :: (store 8)
+    VSTRD  $d24, $r4, 18, 14, $noreg :: (store 8)
+    VSTRD  $d25, $r4, 20, 14, $noreg :: (store 8)
+    VSTRD  $d26, $r4, 22, 14, $noreg :: (store 8)
+    VSTRD  $d27, $r4, 24, 14, $noreg :: (store 8)
+    VSTRD  $d28, $r4, 26, 14, $noreg :: (store 8)
+    VSTRD  $d29, $r4, 28, 14, $noreg :: (store 8)
+    VSTRD  $d30, $r4, 30, 14, $noreg :: (store 8)
+    VSTRD  $d31, $r4, 32, 14, $noreg :: (store 8)
+    VSTRD  $d0, $r4, 34, 14, $noreg :: (store 8)
+    VSTRD  $d1, $r4, 36, 14, $noreg :: (store 8)
+    VSTRD  $d3, $r4, 38, 14, $noreg :: (store 8)
+    VSTRD  $d2, $r4, 40, 14, $noreg :: (store 8)
+    VSTRD  $d4, $r4, 42, 14, $noreg :: (store 8)
+    VSTRD  $d5, $r4, 44, 14, $noreg :: (store 8)
+    VSTRD  $d6, $r4, 46, 14, $noreg :: (store 8)
+    VSTRD  $d7, $r4, 48, 14, $noreg :: (store 8)
+    VSTRD  $d8, $r4, 50, 14, $noreg :: (store 8)
+    VSTRD  $d9, $r4, 52, 14, $noreg :: (store 8)
+    VSTRD  $d10, $r4, 54, 14, $noreg :: (store 8)
+    VSTRD  $d11, $r4, 56, 14, $noreg :: (store 8)
+    VSTRD  $d12, $r4, 58, 14, $noreg :: (store 8)
+    VSTRD  $d13, $r4, 60, 14, $noreg :: (store 8)
+    VSTRD  $d14, $r4, 62, 14, $noreg :: (store 8)
+...