[llvm] [RISCV][CostModel] VPIntrinsics have same cost as their non-vp counterparts (PR #67178)
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llvm-commits at lists.llvm.org
Fri Sep 22 11:49:23 PDT 2023
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-backend-risc-v
<details>
<summary>Changes</summary>
On RISCV, only a few VPIntrinsics have their cost modeled by the
VectorIntrinsicCostTable. Even so, none of those entries consider LMUL.
All other VPIntrinsics do not have meaningful modeling.
This patch models the cost of a VPIntrinsic as the cost of its non-VP
counterpart. It is possible that the VP Intrinsic is cheaper than the non-VP
version depending on VL. On RISCV, this may be due two reasons (if the
instruction is part of a loop):
1. A smaller VL can be used on the last iteration of the loop.
2. The VP instruction may avoid a scalar remainder loop.
I have left this as a TODO since I think this change puts us on the right path
of modeling the cost of a VPInstruction, and it isn't entierly clear to me how
much of a discount we should give to a known VL<VLMAX or what to do when VL
is unknown at compile time.
---
Patch is 26.16 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/67178.diff
3 Files Affected:
- (modified) llvm/include/llvm/CodeGen/BasicTTIImpl.h (+26)
- (modified) llvm/test/Analysis/CostModel/RISCV/gep.ll (+4-4)
- (modified) llvm/test/Analysis/CostModel/RISCV/rvv-intrinsics.ll (+193)
``````````diff
diff --git a/llvm/include/llvm/CodeGen/BasicTTIImpl.h b/llvm/include/llvm/CodeGen/BasicTTIImpl.h
index c11d558a73e9d09..7901622f049e5c1 100644
--- a/llvm/include/llvm/CodeGen/BasicTTIImpl.h
+++ b/llvm/include/llvm/CodeGen/BasicTTIImpl.h
@@ -1687,6 +1687,32 @@ class BasicTTIImplBase : public TargetTransformInfoImplCRTPBase<T> {
}
}
+ // VP Intrinsics should have the same cost as their non-vp counterpart.
+ // TODO: Adjust the cost to make the vp intrinsic cheaper than its non-vp
+ // counterpart when the vector length argument is smaller than the maximum
+ // vector length.
+ if (VPIntrinsic::isVPIntrinsic(ICA.getID())) {
+ std::optional<Intrinsic::ID> FOp =
+ VPIntrinsic::getFunctionalOpcodeForVP(ICA.getID());
+ if (FOp)
+ return thisT()->getArithmeticInstrCost(*FOp, ICA.getReturnType(), CostKind);
+
+ std::optional<Intrinsic::ID> FID =
+ VPIntrinsic::getFunctionalIntrinsicIDForVP(ICA.getID());
+ if (FID) {
+ // Non-vp version will have same Args/Tys except mask and vector length.
+ ArrayRef<const Value *> NewArgs(ICA.getArgs().begin(),
+ ICA.getArgs().end() - 2);
+ ArrayRef<Type *> NewTys(ICA.getArgTypes().begin(),
+ ICA.getArgTypes().end() - 2);
+
+ IntrinsicCostAttributes NewICA(*FID, ICA.getReturnType(), NewArgs,
+ NewTys, ICA.getFlags(), ICA.getInst(),
+ ICA.getScalarizationCost());
+ return thisT()->getIntrinsicInstrCost(NewICA, CostKind);
+ }
+ }
+
// Assume that we need to scalarize this intrinsic.
// Compute the scalarization overhead based on Args for a vector
// intrinsic.
diff --git a/llvm/test/Analysis/CostModel/RISCV/gep.ll b/llvm/test/Analysis/CostModel/RISCV/gep.ll
index c7a3e5d30aba7f4..2c309412b9b2e35 100644
--- a/llvm/test/Analysis/CostModel/RISCV/gep.ll
+++ b/llvm/test/Analysis/CostModel/RISCV/gep.ll
@@ -270,7 +270,7 @@ define void @non_foldable_vector_uses(ptr %base, <2 x ptr> %base.vec) {
; RVI-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %4 = getelementptr i8, ptr %base, i32 42
; RVI-NEXT: Cost Model: Found an estimated cost of 5 for instruction: %x4 = call <2 x i8> @llvm.masked.expandload.v2i8(ptr %4, <2 x i1> undef, <2 x i8> undef)
; RVI-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %5 = getelementptr i8, ptr %base, i32 42
-; RVI-NEXT: Cost Model: Found an estimated cost of 5 for instruction: %x5 = call <2 x i8> @llvm.vp.load.v2i8.p0(ptr %5, <2 x i1> undef, i32 undef)
+; RVI-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %x5 = call <2 x i8> @llvm.vp.load.v2i8.p0(ptr %5, <2 x i1> undef, i32 undef)
; RVI-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %6 = getelementptr i8, ptr %base, i32 42
; RVI-NEXT: Cost Model: Found an estimated cost of 5 for instruction: %x6 = call <2 x i8> @llvm.experimental.vp.strided.load.v2i8.p0.i64(ptr %6, i64 undef, <2 x i1> undef, i32 undef)
; RVI-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %7 = getelementptr i8, ptr %base, i32 42
@@ -282,7 +282,7 @@ define void @non_foldable_vector_uses(ptr %base, <2 x ptr> %base.vec) {
; RVI-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %10 = getelementptr i8, ptr %base, i32 42
; RVI-NEXT: Cost Model: Found an estimated cost of 12 for instruction: call void @llvm.masked.compressstore.v2i8(<2 x i8> undef, ptr %10, <2 x i1> undef)
; RVI-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %11 = getelementptr i8, ptr %base, i32 42
-; RVI-NEXT: Cost Model: Found an estimated cost of 12 for instruction: call void @llvm.vp.store.v2i8.p0(<2 x i8> undef, ptr %11, <2 x i1> undef, i32 undef)
+; RVI-NEXT: Cost Model: Found an estimated cost of 1 for instruction: call void @llvm.vp.store.v2i8.p0(<2 x i8> undef, ptr %11, <2 x i1> undef, i32 undef)
; RVI-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %12 = getelementptr i8, ptr %base, i32 42
; RVI-NEXT: Cost Model: Found an estimated cost of 12 for instruction: call void @llvm.experimental.vp.strided.store.v2i8.p0.i64(<2 x i8> undef, ptr %12, i64 undef, <2 x i1> undef, i32 undef)
; RVI-NEXT: Cost Model: Found an estimated cost of 1 for instruction: ret void
@@ -340,7 +340,7 @@ define void @foldable_vector_uses(ptr %base, <2 x ptr> %base.vec) {
; RVI-NEXT: Cost Model: Found an estimated cost of 0 for instruction: %4 = getelementptr i8, ptr %base, i32 0
; RVI-NEXT: Cost Model: Found an estimated cost of 5 for instruction: %x4 = call <2 x i8> @llvm.masked.expandload.v2i8(ptr %4, <2 x i1> undef, <2 x i8> undef)
; RVI-NEXT: Cost Model: Found an estimated cost of 0 for instruction: %5 = getelementptr i8, ptr %base, i32 0
-; RVI-NEXT: Cost Model: Found an estimated cost of 5 for instruction: %x5 = call <2 x i8> @llvm.vp.load.v2i8.p0(ptr %5, <2 x i1> undef, i32 undef)
+; RVI-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %x5 = call <2 x i8> @llvm.vp.load.v2i8.p0(ptr %5, <2 x i1> undef, i32 undef)
; RVI-NEXT: Cost Model: Found an estimated cost of 0 for instruction: %6 = getelementptr i8, ptr %base, i32 0
; RVI-NEXT: Cost Model: Found an estimated cost of 5 for instruction: %x6 = call <2 x i8> @llvm.experimental.vp.strided.load.v2i8.p0.i64(ptr %6, i64 undef, <2 x i1> undef, i32 undef)
; RVI-NEXT: Cost Model: Found an estimated cost of 0 for instruction: %7 = getelementptr i8, ptr %base, i32 0
@@ -352,7 +352,7 @@ define void @foldable_vector_uses(ptr %base, <2 x ptr> %base.vec) {
; RVI-NEXT: Cost Model: Found an estimated cost of 0 for instruction: %10 = getelementptr i8, ptr %base, i32 0
; RVI-NEXT: Cost Model: Found an estimated cost of 12 for instruction: call void @llvm.masked.compressstore.v2i8(<2 x i8> undef, ptr %10, <2 x i1> undef)
; RVI-NEXT: Cost Model: Found an estimated cost of 0 for instruction: %11 = getelementptr i8, ptr %base, i32 0
-; RVI-NEXT: Cost Model: Found an estimated cost of 12 for instruction: call void @llvm.vp.store.v2i8.p0(<2 x i8> undef, ptr %11, <2 x i1> undef, i32 undef)
+; RVI-NEXT: Cost Model: Found an estimated cost of 1 for instruction: call void @llvm.vp.store.v2i8.p0(<2 x i8> undef, ptr %11, <2 x i1> undef, i32 undef)
; RVI-NEXT: Cost Model: Found an estimated cost of 0 for instruction: %12 = getelementptr i8, ptr %base, i32 0
; RVI-NEXT: Cost Model: Found an estimated cost of 12 for instruction: call void @llvm.experimental.vp.strided.store.v2i8.p0.i64(<2 x i8> undef, ptr %12, i64 undef, <2 x i1> undef, i32 undef)
; RVI-NEXT: Cost Model: Found an estimated cost of 1 for instruction: ret void
diff --git a/llvm/test/Analysis/CostModel/RISCV/rvv-intrinsics.ll b/llvm/test/Analysis/CostModel/RISCV/rvv-intrinsics.ll
index 6dcc218981f7a7a..6ad1e31ff61f63a 100644
--- a/llvm/test/Analysis/CostModel/RISCV/rvv-intrinsics.ll
+++ b/llvm/test/Analysis/CostModel/RISCV/rvv-intrinsics.ll
@@ -206,6 +206,199 @@ define void @vp_fshl() {
ret void
}
+define void @add() {
+; CHECK-LABEL: 'add'
+; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %t0 = call <2 x i8> @llvm.vp.add.v2i8(<2 x i8> undef, <2 x i8> undef, <2 x i1> undef, i32 undef)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %t1 = add <2 x i8> undef, undef
+; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %t2 = call <4 x i8> @llvm.vp.add.v4i8(<4 x i8> undef, <4 x i8> undef, <4 x i1> undef, i32 undef)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %t3 = add <4 x i8> undef, undef
+; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %t4 = call <8 x i8> @llvm.vp.add.v8i8(<8 x i8> undef, <8 x i8> undef, <8 x i1> undef, i32 undef)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %t5 = add <8 x i8> undef, undef
+; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %t6 = call <16 x i8> @llvm.vp.add.v16i8(<16 x i8> undef, <16 x i8> undef, <16 x i1> undef, i32 undef)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %t7 = add <16 x i8> undef, undef
+; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %t8 = call <2 x i64> @llvm.vp.add.v2i64(<2 x i64> undef, <2 x i64> undef, <2 x i1> undef, i32 undef)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %t9 = add <2 x i64> undef, undef
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %t10 = call <4 x i64> @llvm.vp.add.v4i64(<4 x i64> undef, <4 x i64> undef, <4 x i1> undef, i32 undef)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %t12 = add <4 x i64> undef, undef
+; CHECK-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %t13 = call <8 x i64> @llvm.vp.add.v8i64(<8 x i64> undef, <8 x i64> undef, <8 x i1> undef, i32 undef)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %t14 = add <8 x i64> undef, undef
+; CHECK-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %t15 = call <16 x i64> @llvm.vp.add.v16i64(<16 x i64> undef, <16 x i64> undef, <16 x i1> undef, i32 undef)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %t16 = add <16 x i64> undef, undef
+; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %t17 = call <vscale x 2 x i8> @llvm.vp.add.nxv2i8(<vscale x 2 x i8> undef, <vscale x 2 x i8> undef, <vscale x 2 x i1> undef, i32 undef)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %t18 = add <vscale x 2 x i8> undef, undef
+; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %t19 = call <vscale x 4 x i8> @llvm.vp.add.nxv4i8(<vscale x 4 x i8> undef, <vscale x 4 x i8> undef, <vscale x 4 x i1> undef, i32 undef)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %t20 = add <vscale x 4 x i8> undef, undef
+; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %t21 = call <vscale x 8 x i8> @llvm.vp.add.nxv8i8(<vscale x 8 x i8> undef, <vscale x 8 x i8> undef, <vscale x 8 x i1> undef, i32 undef)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %t22 = add <vscale x 8 x i8> undef, undef
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %t23 = call <vscale x 16 x i8> @llvm.vp.add.nxv16i8(<vscale x 16 x i8> undef, <vscale x 16 x i8> undef, <vscale x 16 x i1> undef, i32 undef)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %t24 = add <vscale x 16 x i8> undef, undef
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %t25 = call <vscale x 2 x i64> @llvm.vp.add.nxv2i64(<vscale x 2 x i64> undef, <vscale x 2 x i64> undef, <vscale x 2 x i1> undef, i32 undef)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %t26 = add <vscale x 2 x i64> undef, undef
+; CHECK-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %t27 = call <vscale x 4 x i64> @llvm.vp.add.nxv4i64(<vscale x 4 x i64> undef, <vscale x 4 x i64> undef, <vscale x 4 x i1> undef, i32 undef)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %t28 = add <vscale x 4 x i64> undef, undef
+; CHECK-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %t29 = call <vscale x 8 x i64> @llvm.vp.add.nxv8i64(<vscale x 8 x i64> undef, <vscale x 8 x i64> undef, <vscale x 8 x i1> undef, i32 undef)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %t30 = add <vscale x 8 x i64> undef, undef
+; CHECK-NEXT: Cost Model: Found an estimated cost of 16 for instruction: %t31 = call <vscale x 16 x i64> @llvm.vp.add.nxv16i64(<vscale x 16 x i64> undef, <vscale x 16 x i64> undef, <vscale x 16 x i1> undef, i32 undef)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 16 for instruction: %t32 = add <vscale x 16 x i64> undef, undef
+; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: ret void
+;
+ %t0 = call <2 x i8> @llvm.vp.add.v2i8(<2 x i8> undef, <2 x i8> undef, <2 x i1> undef, i32 undef)
+ %t1 = add <2 x i8> undef, undef
+ %t2 = call <4 x i8> @llvm.vp.add.v4i8(<4 x i8> undef, <4 x i8> undef, <4 x i1> undef, i32 undef)
+ %t3 = add <4 x i8> undef, undef
+ %t4 = call <8 x i8> @llvm.vp.add.v8i8(<8 x i8> undef, <8 x i8> undef, <8 x i1> undef, i32 undef)
+ %t5 = add <8 x i8> undef, undef
+ %t6 = call <16 x i8> @llvm.vp.add.v16i8(<16 x i8> undef, <16 x i8> undef, <16 x i1> undef, i32 undef)
+ %t7 = add <16 x i8> undef, undef
+ %t8 = call <2 x i64> @llvm.vp.add.v2i64(<2 x i64> undef, <2 x i64> undef, <2 x i1> undef, i32 undef)
+ %t9 = add <2 x i64> undef, undef
+ %t10 = call <4 x i64> @llvm.vp.add.v4i64(<4 x i64> undef, <4 x i64> undef, <4 x i1> undef, i32 undef)
+ %t12 = add <4 x i64> undef, undef
+ %t13 = call <8 x i64> @llvm.vp.add.v8i64(<8 x i64> undef, <8 x i64> undef, <8 x i1> undef, i32 undef)
+ %t14 = add <8 x i64> undef, undef
+ %t15 = call <16 x i64> @llvm.vp.add.v16i64(<16 x i64> undef, <16 x i64> undef, <16 x i1> undef, i32 undef)
+ %t16 = add <16 x i64> undef, undef
+ %t17 = call <vscale x 2 x i8> @llvm.vp.add.nv2i8(<vscale x 2 x i8> undef, <vscale x 2 x i8> undef, <vscale x 2 x i1> undef, i32 undef)
+ %t18 = add <vscale x 2 x i8> undef, undef
+ %t19 = call <vscale x 4 x i8> @llvm.vp.add.nv4i8(<vscale x 4 x i8> undef, <vscale x 4 x i8> undef, <vscale x 4 x i1> undef, i32 undef)
+ %t20 = add <vscale x 4 x i8> undef, undef
+ %t21 = call <vscale x 8 x i8> @llvm.vp.add.nv8i8(<vscale x 8 x i8> undef, <vscale x 8 x i8> undef, <vscale x 8 x i1> undef, i32 undef)
+ %t22 = add <vscale x 8 x i8> undef, undef
+ %t23 = call <vscale x 16 x i8> @llvm.vp.add.nv16i8(<vscale x 16 x i8> undef, <vscale x 16 x i8> undef, <vscale x 16 x i1> undef, i32 undef)
+ %t24 = add <vscale x 16 x i8> undef, undef
+ %t25 = call <vscale x 2 x i64> @llvm.vp.add.nv2i64(<vscale x 2 x i64> undef, <vscale x 2 x i64> undef, <vscale x 2 x i1> undef, i32 undef)
+ %t26 = add <vscale x 2 x i64> undef, undef
+ %t27 = call <vscale x 4 x i64> @llvm.vp.add.nv4i64(<vscale x 4 x i64> undef, <vscale x 4 x i64> undef, <vscale x 4 x i1> undef, i32 undef)
+ %t28 = add <vscale x 4 x i64> undef, undef
+ %t29 = call <vscale x 8 x i64> @llvm.vp.add.nv8i64(<vscale x 8 x i64> undef, <vscale x 8 x i64> undef, <vscale x 8 x i1> undef, i32 undef)
+ %t30 = add <vscale x 8 x i64> undef, undef
+ %t31 = call <vscale x 16 x i64> @llvm.vp.add.nv16i64(<vscale x 16 x i64> undef, <vscale x 16 x i64> undef, <vscale x 16 x i1> undef, i32 undef)
+ %t32 = add <vscale x 16 x i64> undef, undef
+ ret void
+}
+
+define void @abs() {
+; CHECK-LABEL: 'abs'
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %1 = call <2 x i8> @llvm.vp.abs.v2i8(<2 x i8> undef, i1 false, <2 x i1> undef, i32 undef)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %2 = call <2 x i8> @llvm.abs.v2i8(<2 x i8> undef, i1 false)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %3 = call <4 x i8> @llvm.vp.abs.v4i8(<4 x i8> undef, i1 false, <4 x i1> undef, i32 undef)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %4 = call <4 x i8> @llvm.abs.v4i8(<4 x i8> undef, i1 false)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %5 = call <8 x i8> @llvm.vp.abs.v8i8(<8 x i8> undef, i1 false, <8 x i1> undef, i32 undef)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %6 = call <8 x i8> @llvm.abs.v8i8(<8 x i8> undef, i1 false)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %7 = call <16 x i8> @llvm.vp.abs.v16i8(<16 x i8> undef, i1 false, <16 x i1> undef, i32 undef)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %8 = call <16 x i8> @llvm.abs.v16i8(<16 x i8> undef, i1 false)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %9 = call <2 x i64> @llvm.vp.abs.v2i64(<2 x i64> undef, i1 false, <2 x i1> undef, i32 undef)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %10 = call <2 x i64> @llvm.abs.v2i64(<2 x i64> undef, i1 false)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %11 = call <4 x i64> @llvm.vp.abs.v4i64(<4 x i64> undef, i1 false, <4 x i1> undef, i32 undef)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %12 = call <4 x i64> @llvm.abs.v4i64(<4 x i64> undef, i1 false)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %13 = call <8 x i64> @llvm.vp.abs.v8i64(<8 x i64> undef, i1 false, <8 x i1> undef, i32 undef)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %14 = call <8 x i64> @llvm.abs.v8i64(<8 x i64> undef, i1 false)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %15 = call <16 x i64> @llvm.vp.abs.v16i64(<16 x i64> undef, i1 false, <16 x i1> undef, i32 undef)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %16 = call <16 x i64> @llvm.abs.v16i64(<16 x i64> undef, i1 false)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %17 = call <vscale x 2 x i8> @llvm.vp.abs.nxv2i8(<vscale x 2 x i8> undef, i1 false, <vscale x 2 x i1> undef, i32 undef)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %18 = call <vscale x 2 x i8> @llvm.abs.nxv2i8(<vscale x 2 x i8> undef, i1 false)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %19 = call <vscale x 4 x i8> @llvm.vp.abs.nxv4i8(<vscale x 4 x i8> undef, i1 false, <vscale x 4 x i1> undef, i32 undef)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %20 = call <vscale x 4 x i8> @llvm.abs.nxv4i8(<vscale x 4 x i8> undef, i1 false)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %21 = call <vscale x 8 x i8> @llvm.vp.abs.nxv8i8(<vscale x 8 x i8> undef, i1 false, <vscale x 8 x i1> undef, i32 undef)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %22 = call <vscale x 8 x i8> @llvm.abs.nxv8i8(<vscale x 8 x i8> undef, i1 false)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %23 = call <vscale x 16 x i8> @llvm.vp.abs.nxv16i8(<vscale x 16 x i8> undef, i1 false, <vscale x 16 x i1> undef, i32 undef)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %24 = call <vscale x 16 x i8> @llvm.abs.nxv16i8(<vscale x 16 x i8> undef, i1 false)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %25 = call <vscale x 2 x i64> @llvm.vp.abs.nxv2i64(<vscale x 2 x i64> undef, i1 false, <vscale x 2 x i1> undef, i32 undef)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %26 = call <vscale x 2 x i64> @llvm.abs.nxv2i64(<vscale x 2 x i64> undef, i1 false)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %27 = call <vscale x 4 x i64> @llvm.vp.abs.nxv4i64(<vscale x 4 x i64> undef, i1 false, <vscale x 4 x i1> undef, i32 undef)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %28 = call <vscale x 4 x i64> @llvm.abs.nxv4i64(<vscale x 4 x i64> undef, i1 false)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %29 = call <vscale x 8 x i64> @llvm.vp.abs.nxv8i64(<vscale x 8 x i64> undef, i1 false, <vscale x 8 x i1> undef, i32 undef)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %30 = call <vscale x 8 x i64> @llvm.abs.nxv8i64(<vscale x 8 x i64> undef, i1 false)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %31 = call <vscale x 16 x i64> @llvm.vp.abs.nxv16i64(<vscale x 16 x i64> undef, i1 false, <vscale x 16 x i1> undef, i32 undef)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %32 = call <vscale x 16 x i64> @llvm.abs.nxv16i64(<vscale x 16 x i64> undef, i1 false)
+; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: ret void
+;
+ call <2 x i8> @llvm.vp.abs.v2i8(<2 x i8> undef, i1 0, <2 x i1> undef, i32 undef)
+ call <2 x i8> @llvm.abs.v2i8(<2 x i8> undef, i1 0)
+ call <4 x i8> @llvm.vp.abs.v4i8(<4 x i8> undef, i1 0, <4 x i1> undef, i32 undef)
+ call <4 x i8> @llvm.abs.v4i8(<4 x i8> undef, i1 0)
+ call <8 x i8> @llvm.vp.abs.v8i8(<8 x i8> undef, i1 0, <8 x ...
[truncated]
``````````
</details>
https://github.com/llvm/llvm-project/pull/67178
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