Index: llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
===================================================================
--- llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
+++ llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
@@ -2030,7 +2030,7 @@
       return UnableToLegalize;
 
     LLT Ty = MRI.getType(MI.getOperand(0).getReg());
-    if (!isPowerOf2_32(Ty.getSizeInBits()))
+    if (!Ty.isScalar())
       return UnableToLegalize;
 
     Observer.changingInstr(MI);
Index: llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-store-global.mir
===================================================================
--- llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-store-global.mir
+++ llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-store-global.mir
@@ -44,6 +44,38 @@
     G_STORE %2, %0 :: (store 1, align 1, addrspace 1)
 ...
 
+---
+name: test_store_global_s7_align1
+body: |
+  bb.0:
+    liveins: $vgpr0_vgpr1, $vgpr2
+
+    ; SI-LABEL: name: test_store_global_s7_align1
+    ; SI: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
+    ; SI: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr2
+    ; SI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
+    ; SI: G_STORE [[COPY2]](s32), [[COPY]](p1) :: (store 1, addrspace 1)
+    ; CI-LABEL: name: test_store_global_s7_align1
+    ; CI: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
+    ; CI: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr2
+    ; CI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
+    ; CI: G_STORE [[COPY2]](s32), [[COPY]](p1) :: (store 1, addrspace 1)
+    ; VI-LABEL: name: test_store_global_s7_align1
+    ; VI: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
+    ; VI: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr2
+    ; VI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
+    ; VI: G_STORE [[COPY2]](s32), [[COPY]](p1) :: (store 1, addrspace 1)
+    ; GFX9-LABEL: name: test_store_global_s7_align1
+    ; GFX9: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
+    ; GFX9: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr2
+    ; GFX9: [[COPY2:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
+    ; GFX9: G_STORE [[COPY2]](s32), [[COPY]](p1) :: (store 1, addrspace 1)
+    %0:_(p1) = COPY $vgpr0_vgpr1
+    %1:_(s32) = COPY $vgpr2
+    %2:_(s7) = G_TRUNC %1
+    G_STORE %2, %0 :: (store 1, align 1, addrspace 1)
+...
+
 ---
 name: test_store_global_s8_align1
 body: |
@@ -192,6 +224,262 @@
     G_STORE %2, %0 :: (store 2, align 4, addrspace 1)
 ...
 
+---
+name: test_store_global_s24_align4
+body: |
+  bb.0:
+    liveins: $vgpr0_vgpr1, $vgpr2
+
+    ; SI-LABEL: name: test_store_global_s24_align4
+    ; SI: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
+    ; SI: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr2
+    ; SI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
+    ; SI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; SI: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[COPY2]], [[C]](s32)
+    ; SI: [[C1:%[0-9]+]]:_(s64) = G_CONSTANT i64 2
+    ; SI: [[PTR_ADD:%[0-9]+]]:_(p1) = G_PTR_ADD [[COPY]], [[C1]](s64)
+    ; SI: G_STORE [[COPY2]](s32), [[COPY]](p1) :: (store 2, align 4, addrspace 1)
+    ; SI: G_STORE [[LSHR]](s32), [[PTR_ADD]](p1) :: (store 1 + 2, align 2, addrspace 1)
+    ; CI-LABEL: name: test_store_global_s24_align4
+    ; CI: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
+    ; CI: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr2
+    ; CI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
+    ; CI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CI: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[COPY2]], [[C]](s32)
+    ; CI: [[C1:%[0-9]+]]:_(s64) = G_CONSTANT i64 2
+    ; CI: [[PTR_ADD:%[0-9]+]]:_(p1) = G_PTR_ADD [[COPY]], [[C1]](s64)
+    ; CI: G_STORE [[COPY2]](s32), [[COPY]](p1) :: (store 2, align 4, addrspace 1)
+    ; CI: G_STORE [[LSHR]](s32), [[PTR_ADD]](p1) :: (store 1 + 2, align 2, addrspace 1)
+    ; VI-LABEL: name: test_store_global_s24_align4
+    ; VI: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
+    ; VI: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr2
+    ; VI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
+    ; VI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; VI: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[COPY2]], [[C]](s32)
+    ; VI: [[C1:%[0-9]+]]:_(s64) = G_CONSTANT i64 2
+    ; VI: [[PTR_ADD:%[0-9]+]]:_(p1) = G_PTR_ADD [[COPY]], [[C1]](s64)
+    ; VI: G_STORE [[COPY2]](s32), [[COPY]](p1) :: (store 2, align 4, addrspace 1)
+    ; VI: G_STORE [[LSHR]](s32), [[PTR_ADD]](p1) :: (store 1 + 2, align 2, addrspace 1)
+    ; GFX9-LABEL: name: test_store_global_s24_align4
+    ; GFX9: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
+    ; GFX9: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr2
+    ; GFX9: [[COPY2:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
+    ; GFX9: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; GFX9: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[COPY2]], [[C]](s32)
+    ; GFX9: [[C1:%[0-9]+]]:_(s64) = G_CONSTANT i64 2
+    ; GFX9: [[PTR_ADD:%[0-9]+]]:_(p1) = G_PTR_ADD [[COPY]], [[C1]](s64)
+    ; GFX9: G_STORE [[COPY2]](s32), [[COPY]](p1) :: (store 2, align 4, addrspace 1)
+    ; GFX9: G_STORE [[LSHR]](s32), [[PTR_ADD]](p1) :: (store 1 + 2, align 2, addrspace 1)
+    %0:_(p1) = COPY $vgpr0_vgpr1
+    %1:_(s32) = COPY $vgpr2
+    %2:_(s24) = G_TRUNC %1
+    G_STORE %2, %0 :: (store 3, align 4, addrspace 1)
+...
+
+---
+name: test_store_global_s24_align2
+body: |
+  bb.0:
+    liveins: $vgpr0_vgpr1, $vgpr2
+
+    ; SI-LABEL: name: test_store_global_s24_align2
+    ; SI: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
+    ; SI: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr2
+    ; SI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
+    ; SI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; SI: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16777215
+    ; SI: [[COPY3:%[0-9]+]]:_(s32) = COPY [[C]](s32)
+    ; SI: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY3]], [[C1]]
+    ; SI: [[COPY4:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
+    ; SI: [[AND1:%[0-9]+]]:_(s32) = G_AND [[COPY4]], [[C1]]
+    ; SI: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[AND1]], [[AND]](s32)
+    ; SI: [[COPY5:%[0-9]+]]:_(s32) = COPY [[COPY2]](s32)
+    ; SI: G_STORE [[COPY5]](s32), [[COPY]](p1) :: (store 2, addrspace 1)
+    ; SI: [[C2:%[0-9]+]]:_(s64) = G_CONSTANT i64 2
+    ; SI: [[PTR_ADD:%[0-9]+]]:_(p1) = G_PTR_ADD [[COPY]], [[C2]](s64)
+    ; SI: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; SI: G_STORE [[COPY6]](s32), [[PTR_ADD]](p1) :: (store 1 + 2, align 2, addrspace 1)
+    ; CI-LABEL: name: test_store_global_s24_align2
+    ; CI: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
+    ; CI: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr2
+    ; CI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
+    ; CI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CI: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[COPY2]], [[C]](s32)
+    ; CI: [[C1:%[0-9]+]]:_(s64) = G_CONSTANT i64 2
+    ; CI: [[PTR_ADD:%[0-9]+]]:_(p1) = G_PTR_ADD [[COPY]], [[C1]](s64)
+    ; CI: G_STORE [[COPY2]](s32), [[COPY]](p1) :: (store 2, addrspace 1)
+    ; CI: G_STORE [[LSHR]](s32), [[PTR_ADD]](p1) :: (store 1 + 2, align 2, addrspace 1)
+    ; VI-LABEL: name: test_store_global_s24_align2
+    ; VI: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
+    ; VI: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr2
+    ; VI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
+    ; VI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; VI: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16777215
+    ; VI: [[COPY3:%[0-9]+]]:_(s32) = COPY [[C]](s32)
+    ; VI: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY3]], [[C1]]
+    ; VI: [[COPY4:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
+    ; VI: [[AND1:%[0-9]+]]:_(s32) = G_AND [[COPY4]], [[C1]]
+    ; VI: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[AND1]], [[AND]](s32)
+    ; VI: [[COPY5:%[0-9]+]]:_(s32) = COPY [[COPY2]](s32)
+    ; VI: G_STORE [[COPY5]](s32), [[COPY]](p1) :: (store 2, addrspace 1)
+    ; VI: [[C2:%[0-9]+]]:_(s64) = G_CONSTANT i64 2
+    ; VI: [[PTR_ADD:%[0-9]+]]:_(p1) = G_PTR_ADD [[COPY]], [[C2]](s64)
+    ; VI: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; VI: G_STORE [[COPY6]](s32), [[PTR_ADD]](p1) :: (store 1 + 2, align 2, addrspace 1)
+    ; GFX9-LABEL: name: test_store_global_s24_align2
+    ; GFX9: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
+    ; GFX9: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr2
+    ; GFX9: [[COPY2:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
+    ; GFX9: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; GFX9: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[COPY2]], [[C]](s32)
+    ; GFX9: [[C1:%[0-9]+]]:_(s64) = G_CONSTANT i64 2
+    ; GFX9: [[PTR_ADD:%[0-9]+]]:_(p1) = G_PTR_ADD [[COPY]], [[C1]](s64)
+    ; GFX9: G_STORE [[COPY2]](s32), [[COPY]](p1) :: (store 2, addrspace 1)
+    ; GFX9: G_STORE [[LSHR]](s32), [[PTR_ADD]](p1) :: (store 1 + 2, align 2, addrspace 1)
+    %0:_(p1) = COPY $vgpr0_vgpr1
+    %1:_(s32) = COPY $vgpr2
+    %2:_(s24) = G_TRUNC %1
+    G_STORE %2, %0 :: (store 3, align 2, addrspace 1)
+...
+
+---
+name: test_store_global_s24_align1
+body: |
+  bb.0:
+    liveins: $vgpr0_vgpr1, $vgpr2
+
+    ; SI-LABEL: name: test_store_global_s24_align1
+    ; SI: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
+    ; SI: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr2
+    ; SI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
+    ; SI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; SI: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16777215
+    ; SI: [[COPY3:%[0-9]+]]:_(s32) = COPY [[C]](s32)
+    ; SI: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY3]], [[C1]]
+    ; SI: [[COPY4:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
+    ; SI: [[AND1:%[0-9]+]]:_(s32) = G_AND [[COPY4]], [[C1]]
+    ; SI: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[AND1]], [[AND]](s32)
+    ; SI: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; SI: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 65535
+    ; SI: [[COPY5:%[0-9]+]]:_(s32) = COPY [[COPY2]](s32)
+    ; SI: [[AND2:%[0-9]+]]:_(s32) = G_AND [[COPY5]], [[C3]]
+    ; SI: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[AND2]], [[C2]](s32)
+    ; SI: [[COPY6:%[0-9]+]]:_(s32) = COPY [[COPY2]](s32)
+    ; SI: G_STORE [[COPY6]](s32), [[COPY]](p1) :: (store 1, addrspace 1)
+    ; SI: [[C4:%[0-9]+]]:_(s64) = G_CONSTANT i64 1
+    ; SI: [[PTR_ADD:%[0-9]+]]:_(p1) = G_PTR_ADD [[COPY]], [[C4]](s64)
+    ; SI: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; SI: G_STORE [[COPY7]](s32), [[PTR_ADD]](p1) :: (store 1 + 1, addrspace 1)
+    ; SI: [[C5:%[0-9]+]]:_(s64) = G_CONSTANT i64 2
+    ; SI: [[PTR_ADD1:%[0-9]+]]:_(p1) = G_PTR_ADD [[COPY]], [[C5]](s64)
+    ; SI: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; SI: G_STORE [[COPY8]](s32), [[PTR_ADD1]](p1) :: (store 1 + 2, addrspace 1)
+    ; CI-LABEL: name: test_store_global_s24_align1
+    ; CI: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
+    ; CI: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr2
+    ; CI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
+    ; CI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CI: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[COPY2]], [[C]](s32)
+    ; CI: [[C1:%[0-9]+]]:_(s64) = G_CONSTANT i64 2
+    ; CI: [[PTR_ADD:%[0-9]+]]:_(p1) = G_PTR_ADD [[COPY]], [[C1]](s64)
+    ; CI: G_STORE [[COPY2]](s32), [[COPY]](p1) :: (store 2, align 1, addrspace 1)
+    ; CI: G_STORE [[LSHR]](s32), [[PTR_ADD]](p1) :: (store 1 + 2, addrspace 1)
+    ; VI-LABEL: name: test_store_global_s24_align1
+    ; VI: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
+    ; VI: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr2
+    ; VI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
+    ; VI: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[COPY2]](s32)
+    ; VI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; VI: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16777215
+    ; VI: [[COPY3:%[0-9]+]]:_(s32) = COPY [[C]](s32)
+    ; VI: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY3]], [[C1]]
+    ; VI: [[COPY4:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
+    ; VI: [[AND1:%[0-9]+]]:_(s32) = G_AND [[COPY4]], [[C1]]
+    ; VI: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[AND1]], [[AND]](s32)
+    ; VI: [[C2:%[0-9]+]]:_(s16) = G_CONSTANT i16 8
+    ; VI: [[LSHR1:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC]], [[C2]](s16)
+    ; VI: [[COPY5:%[0-9]+]]:_(s32) = COPY [[COPY2]](s32)
+    ; VI: G_STORE [[COPY5]](s32), [[COPY]](p1) :: (store 1, addrspace 1)
+    ; VI: [[C3:%[0-9]+]]:_(s64) = G_CONSTANT i64 1
+    ; VI: [[PTR_ADD:%[0-9]+]]:_(p1) = G_PTR_ADD [[COPY]], [[C3]](s64)
+    ; VI: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[LSHR1]](s16)
+    ; VI: G_STORE [[ANYEXT]](s32), [[PTR_ADD]](p1) :: (store 1 + 1, addrspace 1)
+    ; VI: [[C4:%[0-9]+]]:_(s64) = G_CONSTANT i64 2
+    ; VI: [[PTR_ADD1:%[0-9]+]]:_(p1) = G_PTR_ADD [[COPY]], [[C4]](s64)
+    ; VI: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; VI: G_STORE [[COPY6]](s32), [[PTR_ADD1]](p1) :: (store 1 + 2, addrspace 1)
+    ; GFX9-LABEL: name: test_store_global_s24_align1
+    ; GFX9: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
+    ; GFX9: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr2
+    ; GFX9: [[COPY2:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
+    ; GFX9: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; GFX9: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[COPY2]], [[C]](s32)
+    ; GFX9: [[C1:%[0-9]+]]:_(s64) = G_CONSTANT i64 2
+    ; GFX9: [[PTR_ADD:%[0-9]+]]:_(p1) = G_PTR_ADD [[COPY]], [[C1]](s64)
+    ; GFX9: G_STORE [[COPY2]](s32), [[COPY]](p1) :: (store 2, align 1, addrspace 1)
+    ; GFX9: G_STORE [[LSHR]](s32), [[PTR_ADD]](p1) :: (store 1 + 2, addrspace 1)
+    %0:_(p1) = COPY $vgpr0_vgpr1
+    %1:_(s32) = COPY $vgpr2
+    %2:_(s24) = G_TRUNC %1
+    G_STORE %2, %0 :: (store 3, align 1, addrspace 1)
+...
+
+---
+name: test_store_global_s25_align4
+body: |
+  bb.0:
+    liveins: $vgpr0_vgpr1, $vgpr2
+
+    ; SI-LABEL: name: test_store_global_s25_align4
+    ; SI: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
+    ; SI: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr2
+    ; SI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
+    ; SI: G_STORE [[COPY2]](s32), [[COPY]](p1) :: (store 4, addrspace 1)
+    ; CI-LABEL: name: test_store_global_s25_align4
+    ; CI: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
+    ; CI: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr2
+    ; CI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
+    ; CI: G_STORE [[COPY2]](s32), [[COPY]](p1) :: (store 4, addrspace 1)
+    ; VI-LABEL: name: test_store_global_s25_align4
+    ; VI: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
+    ; VI: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr2
+    ; VI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
+    ; VI: G_STORE [[COPY2]](s32), [[COPY]](p1) :: (store 4, addrspace 1)
+    ; GFX9-LABEL: name: test_store_global_s25_align4
+    ; GFX9: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
+    ; GFX9: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr2
+    ; GFX9: [[COPY2:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
+    ; GFX9: G_STORE [[COPY2]](s32), [[COPY]](p1) :: (store 4, addrspace 1)
+    %0:_(p1) = COPY $vgpr0_vgpr1
+    %1:_(s32) = COPY $vgpr2
+    %2:_(s25) = G_TRUNC %1
+    G_STORE %2, %0 :: (store 4, align 4, addrspace 1)
+...
+
+# ---
+# name: test_store_global_s25_align2
+# body: |
+#   bb.0:
+#     liveins: $vgpr0_vgpr1, $vgpr2
+
+#     %0:_(p1) = COPY $vgpr0_vgpr1
+#     %1:_(s32) = COPY $vgpr2
+#     %2:_(s25) = G_TRUNC %1
+#     G_STORE %2, %0 :: (store 4, align 2, addrspace 1)
+# ...
+
+# ---
+# name: test_store_global_s25_align1
+# body: |
+#   bb.0:
+#     liveins: $vgpr0_vgpr1, $vgpr2
+
+#     %0:_(p1) = COPY $vgpr0_vgpr1
+#     %1:_(s32) = COPY $vgpr2
+#     %2:_(s25) = G_TRUNC %1
+#     G_STORE %2, %0 :: (store 4, align 1, addrspace 1)
+# ...
+
 ---
 name: test_store_global_s32_align1
 body: |