fixup! don't use VLMaxSentinel

Author: michaelmaitland

llvm/lib/Target/RISCV/GISel/RISCVLegalizerInfo.cpp

@@ -866,7 +866,7 @@ buildDefaultVLOps(const DstOp &Dst, MachineIRBuilder &MIB,
   assert(VecTy.isScalableVector() && "Expecting scalable container type");
   const RISCVSubtarget &STI = MIB.getMF().getSubtarget<RISCVSubtarget>();
   LLT XLenTy(STI.getXLenVT());
-  auto VL = MIB.buildConstant(XLenTy, RISCV::VLMaxSentinel);
+  auto VL = MIB.buildConstant(XLenTy, -1);
   auto Mask = buildAllOnesMask(VecTy, VL, MIB, MRI);
   return {Mask, VL};
 }

llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rvv/legalize-splatvector-s64-rv32.mir

@@ -19,9 +19,10 @@ body:             |
     ; NoF64-LABEL: name: splatvector_nxv1i64
     ; NoF64: [[DEF:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
     ; NoF64-NEXT: [[DEF1:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
-    ; NoF64-NEXT: [[VMSET_VL:%[0-9]+]]:_(<vscale x 1 x s1>) = G_VMSET_VL $x0
+    ; NoF64-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 -1
+    ; NoF64-NEXT: [[VMSET_VL:%[0-9]+]]:_(<vscale x 1 x s1>) = G_VMSET_VL [[C]](s32)
     ; NoF64-NEXT: [[DEF2:%[0-9]+]]:_(<vscale x 1 x s64>) = G_IMPLICIT_DEF
-    ; NoF64-NEXT: [[SPLAT_VECTOR_SPLIT_I64_VL:%[0-9]+]]:_(<vscale x 1 x s64>) = G_SPLAT_VECTOR_SPLIT_I64_VL [[DEF2]], [[DEF]](s32), [[DEF1]], $x0
+    ; NoF64-NEXT: [[SPLAT_VECTOR_SPLIT_I64_VL:%[0-9]+]]:_(<vscale x 1 x s64>) = G_SPLAT_VECTOR_SPLIT_I64_VL [[DEF2]], [[DEF]](s32), [[DEF1]], [[C]](s32)
     ; NoF64-NEXT: $v8 = COPY [[SPLAT_VECTOR_SPLIT_I64_VL]](<vscale x 1 x s64>)
     ; NoF64-NEXT: PseudoRET implicit $v8
     %0:_(s64) = G_IMPLICIT_DEF
@@ -47,9 +48,10 @@ body:             |
     ; NoF64-LABEL: name: splatvector_nxv2i64
     ; NoF64: [[DEF:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
     ; NoF64-NEXT: [[DEF1:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
-    ; NoF64-NEXT: [[VMSET_VL:%[0-9]+]]:_(<vscale x 2 x s1>) = G_VMSET_VL $x0
+    ; NoF64-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 -1
+    ; NoF64-NEXT: [[VMSET_VL:%[0-9]+]]:_(<vscale x 2 x s1>) = G_VMSET_VL [[C]](s32)
     ; NoF64-NEXT: [[DEF2:%[0-9]+]]:_(<vscale x 2 x s64>) = G_IMPLICIT_DEF
-    ; NoF64-NEXT: [[SPLAT_VECTOR_SPLIT_I64_VL:%[0-9]+]]:_(<vscale x 2 x s64>) = G_SPLAT_VECTOR_SPLIT_I64_VL [[DEF2]], [[DEF]](s32), [[DEF1]], $x0
+    ; NoF64-NEXT: [[SPLAT_VECTOR_SPLIT_I64_VL:%[0-9]+]]:_(<vscale x 2 x s64>) = G_SPLAT_VECTOR_SPLIT_I64_VL [[DEF2]], [[DEF]](s32), [[DEF1]], [[C]](s32)
     ; NoF64-NEXT: $v8m2 = COPY [[SPLAT_VECTOR_SPLIT_I64_VL]](<vscale x 2 x s64>)
     ; NoF64-NEXT: PseudoRET implicit $v8m2
     %0:_(s64) = G_IMPLICIT_DEF
@@ -75,9 +77,10 @@ body:             |
     ; NoF64-LABEL: name: splatvector_nxv4i64
     ; NoF64: [[DEF:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
     ; NoF64-NEXT: [[DEF1:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
-    ; NoF64-NEXT: [[VMSET_VL:%[0-9]+]]:_(<vscale x 4 x s1>) = G_VMSET_VL $x0
+    ; NoF64-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 -1
+    ; NoF64-NEXT: [[VMSET_VL:%[0-9]+]]:_(<vscale x 4 x s1>) = G_VMSET_VL [[C]](s32)
     ; NoF64-NEXT: [[DEF2:%[0-9]+]]:_(<vscale x 4 x s64>) = G_IMPLICIT_DEF
-    ; NoF64-NEXT: [[SPLAT_VECTOR_SPLIT_I64_VL:%[0-9]+]]:_(<vscale x 4 x s64>) = G_SPLAT_VECTOR_SPLIT_I64_VL [[DEF2]], [[DEF]](s32), [[DEF1]], $x0
+    ; NoF64-NEXT: [[SPLAT_VECTOR_SPLIT_I64_VL:%[0-9]+]]:_(<vscale x 4 x s64>) = G_SPLAT_VECTOR_SPLIT_I64_VL [[DEF2]], [[DEF]](s32), [[DEF1]], [[C]](s32)
     ; NoF64-NEXT: $v8m4 = COPY [[SPLAT_VECTOR_SPLIT_I64_VL]](<vscale x 4 x s64>)
     ; NoF64-NEXT: PseudoRET implicit $v8m4
     %0:_(s64) = G_IMPLICIT_DEF
@@ -103,9 +106,10 @@ body:             |
     ; NoF64-LABEL: name: splatvector_nxv8i64
     ; NoF64: [[DEF:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
     ; NoF64-NEXT: [[DEF1:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
-    ; NoF64-NEXT: [[VMSET_VL:%[0-9]+]]:_(<vscale x 8 x s1>) = G_VMSET_VL $x0
+    ; NoF64-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 -1
+    ; NoF64-NEXT: [[VMSET_VL:%[0-9]+]]:_(<vscale x 8 x s1>) = G_VMSET_VL [[C]](s32)
     ; NoF64-NEXT: [[DEF2:%[0-9]+]]:_(<vscale x 8 x s64>) = G_IMPLICIT_DEF
-    ; NoF64-NEXT: [[SPLAT_VECTOR_SPLIT_I64_VL:%[0-9]+]]:_(<vscale x 8 x s64>) = G_SPLAT_VECTOR_SPLIT_I64_VL [[DEF2]], [[DEF]](s32), [[DEF1]], $x0
+    ; NoF64-NEXT: [[SPLAT_VECTOR_SPLIT_I64_VL:%[0-9]+]]:_(<vscale x 8 x s64>) = G_SPLAT_VECTOR_SPLIT_I64_VL [[DEF2]], [[DEF]](s32), [[DEF1]], [[C]](s32)
     ; NoF64-NEXT: $v8m8 = COPY [[SPLAT_VECTOR_SPLIT_I64_VL]](<vscale x 8 x s64>)
     ; NoF64-NEXT: PseudoRET implicit $v8m8
     %0:_(s64) = G_IMPLICIT_DEF