[llvm] [RISCV] Cost casts with illegal types that can't be legalized (PR #153030)
via llvm-commits
llvm-commits at lists.llvm.org
Mon Aug 11 08:02:49 PDT 2025
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-backend-risc-v
Author: Luke Lau (lukel97)
<details>
<summary>Changes</summary>
If we have a floating point vector and no zve32f/zve64f/zve64d, we can end up with an invalid type-legalization cost from getTypeLegalizationCost.
Previously this triggered an assertion that the type must have been legalized if the "legal" type is a vector, but in this case when it's not possible to legalize the original type is spat back out.
This fixes it by just checking that the legalization cost is valid.
We don't have much testing for zve64x, so we may have other places in the cost model with this issue.
Fixes #<!-- -->153008
---
Patch is 658.78 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/153030.diff
2 Files Affected:
- (modified) llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp (+1)
- (modified) llvm/test/Analysis/CostModel/RISCV/cast.ll (+2683-1341)
``````````diff
diff --git a/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp b/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
index 67f924aadc8c0..af78b3cc2c7ff 100644
--- a/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
+++ b/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
@@ -1629,6 +1629,7 @@ InstructionCost RISCVTTIImpl::getCastInstrCost(unsigned Opcode, Type *Dst,
// scalarized if the legalized Src and Dst are not equal sized.
const DataLayout &DL = this->getDataLayout();
if (!SrcLT.second.isVector() || !DstLT.second.isVector() ||
+ !SrcLT.first.isValid() || !DstLT.first.isValid() ||
!TypeSize::isKnownLE(DL.getTypeSizeInBits(Src),
SrcLT.second.getSizeInBits()) ||
!TypeSize::isKnownLE(DL.getTypeSizeInBits(Dst),
diff --git a/llvm/test/Analysis/CostModel/RISCV/cast.ll b/llvm/test/Analysis/CostModel/RISCV/cast.ll
index bdd8540a2c475..e64bce2d9c9e5 100644
--- a/llvm/test/Analysis/CostModel/RISCV/cast.ll
+++ b/llvm/test/Analysis/CostModel/RISCV/cast.ll
@@ -1,6 +1,7 @@
; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py
-; RUN: opt < %s -mtriple=riscv32 -mattr=+v,+zfh,+zvfh -passes="print<cost-model>" -cost-kind=throughput -intrinsic-cost-strategy=type-based-intrinsic-cost 2>&1 -disable-output | FileCheck %s --check-prefixes=CHECK,RV32
-; RUN: opt < %s -mtriple=riscv64 -mattr=+v,+zfh,+zvfh -passes="print<cost-model>" -cost-kind=throughput -intrinsic-cost-strategy=type-based-intrinsic-cost 2>&1 -disable-output | FileCheck %s --check-prefixes=CHECK,RV64
+; RUN: opt < %s -mtriple=riscv32 -mattr=+v,+zfh,+zvfh -passes="print<cost-model>" -cost-kind=throughput -intrinsic-cost-strategy=type-based-intrinsic-cost 2>&1 -disable-output | FileCheck %s --check-prefixes=CHECK,ZVE64D
+; RUN: opt < %s -mtriple=riscv64 -mattr=+v,+zfh,+zvfh -passes="print<cost-model>" -cost-kind=throughput -intrinsic-cost-strategy=type-based-intrinsic-cost 2>&1 -disable-output | FileCheck %s --check-prefixes=CHECK,ZVE64D
+; RUN: opt < %s -mtriple=riscv64 -mattr=+zvl128b,+zve64x -passes="print<cost-model>" -cost-kind=throughput -intrinsic-cost-strategy=type-based-intrinsic-cost 2>&1 -disable-output | FileCheck %s --check-prefixes=CHECK,ZVE64X
define void @sext() {
; CHECK-LABEL: 'sext'
@@ -2021,92 +2022,179 @@ define void @trunc() {
}
define void @fpext() {
-; CHECK-LABEL: 'fpext'
-; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %v2f16_v2f32 = fpext <2 x half> undef to <2 x float>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v2f16_v2f64 = fpext <2 x half> undef to <2 x double>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %v2f32_v2f64 = fpext <2 x float> undef to <2 x double>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %vp_v2f16_v2f32 = call <2 x float> @llvm.vp.fpext.v2f32.v2f16(<2 x half> undef, <2 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %vp_v2f16_v2f64 = call <2 x double> @llvm.vp.fpext.v2f64.v2f16(<2 x half> undef, <2 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %vp_v2f32_v2f64 = call <2 x double> @llvm.vp.fpext.v2f64.v2f32(<2 x float> undef, <2 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %v4f16_v4f32 = fpext <4 x half> undef to <4 x float>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %v4f16_v4f64 = fpext <4 x half> undef to <4 x double>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v4f32_v4f64 = fpext <4 x float> undef to <4 x double>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %vp_v4f16_v4f32 = call <4 x float> @llvm.vp.fpext.v4f32.v4f16(<4 x half> undef, <4 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %vp_v4f16_v4f64 = call <4 x double> @llvm.vp.fpext.v4f64.v4f16(<4 x half> undef, <4 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %vp_v4f32_v4f64 = call <4 x double> @llvm.vp.fpext.v4f64.v4f32(<4 x float> undef, <4 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v8f16_v8f32 = fpext <8 x half> undef to <8 x float>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 6 for instruction: %v8f16_v8f64 = fpext <8 x half> undef to <8 x double>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %v8f32_v8f64 = fpext <8 x float> undef to <8 x double>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %vp_v8f16_v8f32 = call <8 x float> @llvm.vp.fpext.v8f32.v8f16(<8 x half> undef, <8 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 6 for instruction: %vp_v8f16_v8f64 = call <8 x double> @llvm.vp.fpext.v8f64.v8f16(<8 x half> undef, <8 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %vp_v8f32_v8f64 = call <8 x double> @llvm.vp.fpext.v8f64.v8f32(<8 x float> undef, <8 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %v16f16_v16f32 = fpext <16 x half> undef to <16 x float>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 12 for instruction: %v16f16_v16f64 = fpext <16 x half> undef to <16 x double>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %v16f32_v16f64 = fpext <16 x float> undef to <16 x double>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %vp_v16f16_v16f32 = call <16 x float> @llvm.vp.fpext.v16f32.v16f16(<16 x half> undef, <16 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 12 for instruction: %vp_v16f16_v16f64 = call <16 x double> @llvm.vp.fpext.v16f64.v16f16(<16 x half> undef, <16 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %vp_v16f32_v16f64 = call <16 x double> @llvm.vp.fpext.v16f64.v16f32(<16 x float> undef, <16 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %v32f16_v32f32 = fpext <32 x half> undef to <32 x float>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 25 for instruction: %v32f16_v32f64 = fpext <32 x half> undef to <32 x double>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 17 for instruction: %v32f32_v32f64 = fpext <32 x float> undef to <32 x double>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %vp_v32f16_v32f32 = call <32 x float> @llvm.vp.fpext.v32f32.v32f16(<32 x half> undef, <32 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 25 for instruction: %vp_v32f16_v32f64 = call <32 x double> @llvm.vp.fpext.v32f64.v32f16(<32 x half> undef, <32 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 17 for instruction: %vp_v32f32_v32f64 = call <32 x double> @llvm.vp.fpext.v32f64.v32f32(<32 x float> undef, <32 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 17 for instruction: %v64f16_v64f32 = fpext <64 x half> undef to <64 x float>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 51 for instruction: %v64f16_v64f64 = fpext <64 x half> undef to <64 x double>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 34 for instruction: %v64f32_v64f64 = fpext <64 x float> undef to <64 x double>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 17 for instruction: %vp_v64f16_v64f32 = call <64 x float> @llvm.vp.fpext.v64f32.v64f16(<64 x half> undef, <64 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 51 for instruction: %vp_v64f16_v64f64 = call <64 x double> @llvm.vp.fpext.v64f64.v64f16(<64 x half> undef, <64 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 34 for instruction: %vp_v64f32_v64f64 = call <64 x double> @llvm.vp.fpext.v64f64.v64f32(<64 x float> undef, <64 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 34 for instruction: %v128f16_v128f32 = fpext <128 x half> undef to <128 x float>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 102 for instruction: %v128f16_v128f64 = fpext <128 x half> undef to <128 x double>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 68 for instruction: %v128f32_v128f64 = fpext <128 x float> undef to <128 x double>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 34 for instruction: %vp_v128f16_v128f32 = call <128 x float> @llvm.vp.fpext.v128f32.v128f16(<128 x half> undef, <128 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 102 for instruction: %vp_v128f16_v128f64 = call <128 x double> @llvm.vp.fpext.v128f64.v128f16(<128 x half> undef, <128 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 68 for instruction: %vp_v128f32_v128f64 = call <128 x double> @llvm.vp.fpext.v128f64.v128f32(<128 x float> undef, <128 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %nxv1f16_nxv1f32 = fpext <vscale x 1 x half> undef to <vscale x 1 x float>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv1f16_nxv1f64 = fpext <vscale x 1 x half> undef to <vscale x 1 x double>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %nxv1f32_nxv1f64 = fpext <vscale x 1 x float> undef to <vscale x 1 x double>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %vp_nxv1f16_nxv1f32 = call <vscale x 1 x float> @llvm.vp.fpext.nxv1f32.nxv1f16(<vscale x 1 x half> undef, <vscale x 1 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %vp_nxv1f16_nxv1f64 = call <vscale x 1 x double> @llvm.vp.fpext.nxv1f64.nxv1f16(<vscale x 1 x half> undef, <vscale x 1 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %vp_nxv1f32_nxv1f64 = call <vscale x 1 x double> @llvm.vp.fpext.nxv1f64.nxv1f32(<vscale x 1 x float> undef, <vscale x 1 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %nxv2f16_nxv2f32 = fpext <vscale x 2 x half> undef to <vscale x 2 x float>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %nxv2f16_nxv2f64 = fpext <vscale x 2 x half> undef to <vscale x 2 x double>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv2f32_nxv2f64 = fpext <vscale x 2 x float> undef to <vscale x 2 x double>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %vp_nxv2f16_nxv2f32 = call <vscale x 2 x float> @llvm.vp.fpext.nxv2f32.nxv2f16(<vscale x 2 x half> undef, <vscale x 2 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %vp_nxv2f16_nxv2f64 = call <vscale x 2 x double> @llvm.vp.fpext.nxv2f64.nxv2f16(<vscale x 2 x half> undef, <vscale x 2 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %vp_nxv2f32_nxv2f64 = call <vscale x 2 x double> @llvm.vp.fpext.nxv2f64.nxv2f32(<vscale x 2 x float> undef, <vscale x 2 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv4f16_nxv4f32 = fpext <vscale x 4 x half> undef to <vscale x 4 x float>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 6 for instruction: %nxv4f16_nxv4f64 = fpext <vscale x 4 x half> undef to <vscale x 4 x double>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %nxv4f32_nxv4f64 = fpext <vscale x 4 x float> undef to <vscale x 4 x double>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %vp_nxv4f16_nxv4f32 = call <vscale x 4 x float> @llvm.vp.fpext.nxv4f32.nxv4f16(<vscale x 4 x half> undef, <vscale x 4 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 6 for instruction: %vp_nxv4f16_nxv4f64 = call <vscale x 4 x double> @llvm.vp.fpext.nxv4f64.nxv4f16(<vscale x 4 x half> undef, <vscale x 4 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %vp_nxv4f32_nxv4f64 = call <vscale x 4 x double> @llvm.vp.fpext.nxv4f64.nxv4f32(<vscale x 4 x float> undef, <vscale x 4 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %nxv8f16_nxv8f32 = fpext <vscale x 8 x half> undef to <vscale x 8 x float>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 12 for instruction: %nxv8f16_nxv8f64 = fpext <vscale x 8 x half> undef to <vscale x 8 x double>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %nxv8f32_nxv8f64 = fpext <vscale x 8 x float> undef to <vscale x 8 x double>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %vp_nxv8f16_nxv8f32 = call <vscale x 8 x float> @llvm.vp.fpext.nxv8f32.nxv8f16(<vscale x 8 x half> undef, <vscale x 8 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 12 for instruction: %vp_nxv8f16_nxv8f64 = call <vscale x 8 x double> @llvm.vp.fpext.nxv8f64.nxv8f16(<vscale x 8 x half> undef, <vscale x 8 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %vp_nxv8f32_nxv8f64 = call <vscale x 8 x double> @llvm.vp.fpext.nxv8f64.nxv8f32(<vscale x 8 x float> undef, <vscale x 8 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %nxv16f16_nxv16f32 = fpext <vscale x 16 x half> undef to <vscale x 16 x float>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 25 for instruction: %nxv16f16_nxv16f64 = fpext <vscale x 16 x half> undef to <vscale x 16 x double>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 17 for instruction: %nxv16f32_nxv16f64 = fpext <vscale x 16 x float> undef to <vscale x 16 x double>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %vp_nxv16f16_nxv16f32 = call <vscale x 16 x float> @llvm.vp.fpext.nxv16f32.nxv16f16(<vscale x 16 x half> undef, <vscale x 16 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 25 for instruction: %vp_nxv16f16_nxv16f64 = call <vscale x 16 x double> @llvm.vp.fpext.nxv16f64.nxv16f16(<vscale x 16 x half> undef, <vscale x 16 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 17 for instruction: %vp_nxv16f32_nxv16f64 = call <vscale x 16 x double> @llvm.vp.fpext.nxv16f64.nxv16f32(<vscale x 16 x float> undef, <vscale x 16 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 17 for instruction: %nxv32f16_nxv32f32 = fpext <vscale x 32 x half> undef to <vscale x 32 x float>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 51 for instruction: %nxv32f16_nxv32f64 = fpext <vscale x 32 x half> undef to <vscale x 32 x double>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 34 for instruction: %nxv32f32_nxv32f64 = fpext <vscale x 32 x float> undef to <vscale x 32 x double>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 17 for instruction: %vp_nxv32f16_nxv32f32 = call <vscale x 32 x float> @llvm.vp.fpext.nxv32f32.nxv32f16(<vscale x 32 x half> undef, <vscale x 32 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 51 for instruction: %vp_nxv32f16_nxv32f64 = call <vscale x 32 x double> @llvm.vp.fpext.nxv32f64.nxv32f16(<vscale x 32 x half> undef, <vscale x 32 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 34 for instruction: %vp_nxv32f32_nxv32f64 = call <vscale x 32 x double> @llvm.vp.fpext.nxv32f64.nxv32f32(<vscale x 32 x float> undef, <vscale x 32 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 34 for instruction: %nxv64f16_nxv64f32 = fpext <vscale x 64 x half> undef to <vscale x 64 x float>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 102 for instruction: %nxv64f16_nxv64f64 = fpext <vscale x 64 x half> undef to <vscale x 64 x double>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 68 for instruction: %nxv64f32_nxv64f64 = fpext <vscale x 64 x float> undef to <vscale x 64 x double>
-; CHECK-NEXT: Cost Model: Found an estimated cost of 34 for instruction: %vp_nxv64f16_nxv64f32 = call <vscale x 64 x float> @llvm.vp.fpext.nxv64f32.nxv64f16(<vscale x 64 x half> undef, <vscale x 64 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 102 for instruction: %vp_nxv64f16_nxv64f64 = call <vscale x 64 x double> @llvm.vp.fpext.nxv64f64.nxv64f16(<vscale x 64 x half> undef, <vscale x 64 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 68 for instruction: %vp_nxv64f32_nxv64f64 = call <vscale x 64 x double> @llvm.vp.fpext.nxv64f64.nxv64f32(<vscale x 64 x float> undef, <vscale x 64 x i1> undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
+; ZVE64D-LABEL: 'fpext'
+; ZVE64D-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %v2f16_v2f32 = fpext <2 x half> undef to <2 x float>
+; ZVE64D-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v2f16_v2f64 = fpext <2 x half> undef to <2 x double>
+; ZVE64D-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %v2f32_v2f64 = fpext <2 x float> undef to <2 x double>
+; ZVE64D-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %vp_v2f16_v2f32 = call <2 x float> @llvm.vp.fpext.v2f32.v2f16(<2 x half> undef, <2 x i1> undef, i32 undef)
+; ZVE64D-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %vp_v2f16_v2f64 = call <2 x double> @llvm.vp.fpext.v2f64.v2f16(<2 x half> undef, <2 x i1> undef, i32 undef)
+; ZVE64D-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %vp_v2f32_v2f64 = call <2 x double> @llvm.vp.fpext.v2f64.v2f32(<2 x float> undef, <2 x i1> undef, i32 undef)
+; ZVE64D-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %v4f16_v4f32 = fpext <4 x half> undef to <4 x float>
+; ZVE64D-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %v4f16_v4f64 = fpext <4 x half> undef to <4 x double>
+; ZVE64D-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v4f32_v4f64 = fpext <4 x float> undef to <4 x double>
+; ZVE64D-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %vp_v4f16_v4f32 = call <4 x float> @llvm.vp.fpext.v4f32.v4f16(<4 x half> undef, <4 x i1> undef, i32 undef)
+; ZVE64D-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %vp_v4f16_v4f64 = call <4 x double> @llvm.vp.fpext.v4f64.v4f16(<4 x half> undef, <4 x i1> undef, i32 undef)
+; ZVE64D-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %vp_v4f32_v4f64 = call <4 x double> @llvm.vp.fpext.v4f64.v4f32(<4 x float> undef, <4 x i1> undef, i32 undef)
+; ZVE64D-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v8f16_v8f32 = fpext <8 x half> undef to <8 x float>
+; ZVE64D-NEXT: Cost Model: Found an estimated cost of 6 for instruction: %v8f16_v8f64 = fpext <8 x half> undef to <8 x double>
+; ZVE64D-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %v8f32_v8f64 = fpext <8 x float> undef to <8 x double>
+; ZVE64D-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %vp_v8f16_v8f32 = call <8 x float> @llvm.vp.fpext.v8f32.v8f16(<8 x half> undef, <8 x i1> undef, i32 undef)
+; ZVE64D-NEXT: Cost Model: Found an estimated cost of 6 for instruction: %vp_v8f16_v8f64 = call <8 x double> @llvm.vp.fpext.v8f64.v8f16(<8 x half> undef, <8 x i1> undef, i32 undef)
+; ZVE64D-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %vp_v8f32_v8f64 = call <8 x double> @llvm.vp.fpext.v8f64.v8f32(<8 x float> undef, <8 x i1> undef, i32 undef)
+; ZVE64D-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %v16f16_v16f32 = fpext <16 x half> undef to <16 x float>
+; ZVE64D-NEXT: Cost Model: Found an estimated cost of 12 for instruction: %v16f16_v16f64 = fpext <16 x half> undef to <16 x double>
+; ZVE64D-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %v16f32_v16f64 = fpext <16 x float> undef to <16 x double>
+; ZVE64D-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %vp_v16f16_v16f32 = call <16 x float> @llvm.vp.fpext.v16f32.v16f16(<16 x half> undef, <16 x i1> undef, i32 undef)
+; ZVE64D-NEXT: Cost Model: Found an estimated cost of 12 for instruction: %...
[truncated]
``````````
</details>
https://github.com/llvm/llvm-project/pull/153030
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