[RISCV] Add explicit VLS test line for vector spill/fill

I got asked about this offline and realized we didn't really have
tests specific to the VLS frame lowering.

Author: preames

llvm/test/CodeGen/RISCV/rvv/rv64-spill-vector.ll

@@ -3,6 +3,8 @@
 ; RUN:    | FileCheck --check-prefix=SPILL-O0 %s
 ; RUN: llc -mtriple=riscv64 -mattr=+v -O2 < %s \
 ; RUN:    | FileCheck --check-prefix=SPILL-O2 %s
+; RUN: llc -mtriple=riscv64 -mattr=+v,+d -mattr=+d -riscv-v-vector-bits-max=128 -O2 < %s \
+; RUN:    | FileCheck --check-prefix=SPILL-O2-VLEN128 %s
 
 define <vscale x 1 x i64> @spill_lmul_1(<vscale x 1 x i64> %va) nounwind {
 ; SPILL-O0-LABEL: spill_lmul_1:
@@ -35,6 +37,19 @@ define <vscale x 1 x i64> @spill_lmul_1(<vscale x 1 x i64> %va) nounwind {
 ; SPILL-O2-NEXT:    add sp, sp, a0
 ; SPILL-O2-NEXT:    addi sp, sp, 16
 ; SPILL-O2-NEXT:    ret
+;
+; SPILL-O2-VLEN128-LABEL: spill_lmul_1:
+; SPILL-O2-VLEN128:       # %bb.0: # %entry
+; SPILL-O2-VLEN128-NEXT:    addi sp, sp, -16
+; SPILL-O2-VLEN128-NEXT:    addi sp, sp, -16
+; SPILL-O2-VLEN128-NEXT:    addi a0, sp, 16
+; SPILL-O2-VLEN128-NEXT:    vs1r.v v8, (a0) # Unknown-size Folded Spill
+; SPILL-O2-VLEN128-NEXT:    #APP
+; SPILL-O2-VLEN128-NEXT:    #NO_APP
+; SPILL-O2-VLEN128-NEXT:    vl1r.v v8, (a0) # Unknown-size Folded Reload
+; SPILL-O2-VLEN128-NEXT:    addi sp, sp, 16
+; SPILL-O2-VLEN128-NEXT:    addi sp, sp, 16
+; SPILL-O2-VLEN128-NEXT:    ret
 entry:
   call void asm sideeffect "",
   "~{v0},~{v1},~{v2},~{v3},~{v4},~{v5},~{v6},~{v7},~{v8},~{v9},~{v10},~{v11},~{v12},~{v13},~{v14},~{v15},~{v16},~{v17},~{v18},~{v19},~{v20},~{v21},~{v22},~{v23},~{v24},~{v25},~{v26},~{v27},~{v28},~{v29},~{v30},~{v31}"()
@@ -77,6 +92,19 @@ define <vscale x 2 x i64> @spill_lmul_2(<vscale x 2 x i64> %va) nounwind {
 ; SPILL-O2-NEXT:    add sp, sp, a0
 ; SPILL-O2-NEXT:    addi sp, sp, 16
 ; SPILL-O2-NEXT:    ret
+;
+; SPILL-O2-VLEN128-LABEL: spill_lmul_2:
+; SPILL-O2-VLEN128:       # %bb.0: # %entry
+; SPILL-O2-VLEN128-NEXT:    addi sp, sp, -16
+; SPILL-O2-VLEN128-NEXT:    addi sp, sp, -32
+; SPILL-O2-VLEN128-NEXT:    addi a0, sp, 16
+; SPILL-O2-VLEN128-NEXT:    vs2r.v v8, (a0) # Unknown-size Folded Spill
+; SPILL-O2-VLEN128-NEXT:    #APP
+; SPILL-O2-VLEN128-NEXT:    #NO_APP
+; SPILL-O2-VLEN128-NEXT:    vl2r.v v8, (a0) # Unknown-size Folded Reload
+; SPILL-O2-VLEN128-NEXT:    addi sp, sp, 32
+; SPILL-O2-VLEN128-NEXT:    addi sp, sp, 16
+; SPILL-O2-VLEN128-NEXT:    ret
 entry:
   call void asm sideeffect "",
   "~{v0},~{v1},~{v2},~{v3},~{v4},~{v5},~{v6},~{v7},~{v8},~{v9},~{v10},~{v11},~{v12},~{v13},~{v14},~{v15},~{v16},~{v17},~{v18},~{v19},~{v20},~{v21},~{v22},~{v23},~{v24},~{v25},~{v26},~{v27},~{v28},~{v29},~{v30},~{v31}"()
@@ -119,6 +147,19 @@ define <vscale x 4 x i64> @spill_lmul_4(<vscale x 4 x i64> %va) nounwind {
 ; SPILL-O2-NEXT:    add sp, sp, a0
 ; SPILL-O2-NEXT:    addi sp, sp, 16
 ; SPILL-O2-NEXT:    ret
+;
+; SPILL-O2-VLEN128-LABEL: spill_lmul_4:
+; SPILL-O2-VLEN128:       # %bb.0: # %entry
+; SPILL-O2-VLEN128-NEXT:    addi sp, sp, -16
+; SPILL-O2-VLEN128-NEXT:    addi sp, sp, -64
+; SPILL-O2-VLEN128-NEXT:    addi a0, sp, 16
+; SPILL-O2-VLEN128-NEXT:    vs4r.v v8, (a0) # Unknown-size Folded Spill
+; SPILL-O2-VLEN128-NEXT:    #APP
+; SPILL-O2-VLEN128-NEXT:    #NO_APP
+; SPILL-O2-VLEN128-NEXT:    vl4r.v v8, (a0) # Unknown-size Folded Reload
+; SPILL-O2-VLEN128-NEXT:    addi sp, sp, 64
+; SPILL-O2-VLEN128-NEXT:    addi sp, sp, 16
+; SPILL-O2-VLEN128-NEXT:    ret
 entry:
   call void asm sideeffect "",
   "~{v0},~{v1},~{v2},~{v3},~{v4},~{v5},~{v6},~{v7},~{v8},~{v9},~{v10},~{v11},~{v12},~{v13},~{v14},~{v15},~{v16},~{v17},~{v18},~{v19},~{v20},~{v21},~{v22},~{v23},~{v24},~{v25},~{v26},~{v27},~{v28},~{v29},~{v30},~{v31}"()
@@ -161,6 +202,19 @@ define <vscale x 8 x i64> @spill_lmul_8(<vscale x 8 x i64> %va) nounwind {
 ; SPILL-O2-NEXT:    add sp, sp, a0
 ; SPILL-O2-NEXT:    addi sp, sp, 16
 ; SPILL-O2-NEXT:    ret
+;
+; SPILL-O2-VLEN128-LABEL: spill_lmul_8:
+; SPILL-O2-VLEN128:       # %bb.0: # %entry
+; SPILL-O2-VLEN128-NEXT:    addi sp, sp, -16
+; SPILL-O2-VLEN128-NEXT:    addi sp, sp, -128
+; SPILL-O2-VLEN128-NEXT:    addi a0, sp, 16
+; SPILL-O2-VLEN128-NEXT:    vs8r.v v8, (a0) # Unknown-size Folded Spill
+; SPILL-O2-VLEN128-NEXT:    #APP
+; SPILL-O2-VLEN128-NEXT:    #NO_APP
+; SPILL-O2-VLEN128-NEXT:    vl8r.v v8, (a0) # Unknown-size Folded Reload
+; SPILL-O2-VLEN128-NEXT:    addi sp, sp, 128
+; SPILL-O2-VLEN128-NEXT:    addi sp, sp, 16
+; SPILL-O2-VLEN128-NEXT:    ret
 entry:
   call void asm sideeffect "",
   "~{v0},~{v1},~{v2},~{v3},~{v4},~{v5},~{v6},~{v7},~{v8},~{v9},~{v10},~{v11},~{v12},~{v13},~{v14},~{v15},~{v16},~{v17},~{v18},~{v19},~{v20},~{v21},~{v22},~{v23},~{v24},~{v25},~{v26},~{v27},~{v28},~{v29},~{v30},~{v31}"()