[llvm] [RISCV][TTI] Scale the cost of the sext/zext with LMUL (PR #86617)
via llvm-commits
llvm-commits at lists.llvm.org
Mon Mar 25 19:09:13 PDT 2024
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-backend-risc-v
@llvm/pr-subscribers-llvm-analysis
Author: Shih-Po Hung (arcbbb)
<details>
<summary>Changes</summary>
Use the destination data type to measure the LMUL size for latency/throughput cost
---
Patch is 198.41 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/86617.diff
6 Files Affected:
- (modified) llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp (+16-9)
- (modified) llvm/test/Analysis/CostModel/RISCV/cast.ll (+460-460)
- (modified) llvm/test/Analysis/CostModel/RISCV/reduce-scalable-int.ll (+6-6)
- (modified) llvm/test/Analysis/CostModel/RISCV/rvv-extractelement.ll (+42-42)
- (modified) llvm/test/Analysis/CostModel/RISCV/rvv-insertelement.ll (+42-42)
- (modified) llvm/test/Analysis/CostModel/RISCV/shuffle-broadcast.ll (+1-1)
``````````diff
diff --git a/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp b/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
index f75b3d3caa62f2..4d677fa287360f 100644
--- a/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
+++ b/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
@@ -897,6 +897,7 @@ InstructionCost RISCVTTIImpl::getCastInstrCost(unsigned Opcode, Type *Dst,
TTI::CastContextHint CCH,
TTI::TargetCostKind CostKind,
const Instruction *I) {
+ std::pair<InstructionCost, MVT> DstLT = getTypeLegalizationCost(Dst);
if (isa<VectorType>(Dst) && isa<VectorType>(Src)) {
// FIXME: Need to compute legalizing cost for illegal types.
if (!isTypeLegal(Src) || !isTypeLegal(Dst))
@@ -915,15 +916,21 @@ InstructionCost RISCVTTIImpl::getCastInstrCost(unsigned Opcode, Type *Dst,
(int)Log2_32(Src->getScalarSizeInBits());
switch (ISD) {
case ISD::SIGN_EXTEND:
- case ISD::ZERO_EXTEND:
- if (Src->getScalarSizeInBits() == 1) {
- // We do not use vsext/vzext to extend from mask vector.
- // Instead we use the following instructions to extend from mask vector:
- // vmv.v.i v8, 0
- // vmerge.vim v8, v8, -1, v0
- return 2;
- }
- return 1;
+ case ISD::ZERO_EXTEND: {
+ const unsigned SrcEltSize = Src->getScalarSizeInBits();
+ if (SrcEltSize == 1)
+ return getRISCVInstructionCost({RISCV::VMV_V_I, RISCV::VMERGE_VIM},
+ DstLT.second, CostKind);
+ if (PowDiff > 3)
+ return BaseT::getCastInstrCost(Opcode, Dst, Src, CCH, CostKind, I);
+ unsigned SExtOp[] = {RISCV::VSEXT_VF2, RISCV::VSEXT_VF4,
+ RISCV::VSEXT_VF8};
+ unsigned ZExtOp[] = {RISCV::VZEXT_VF2, RISCV::VZEXT_VF4,
+ RISCV::VZEXT_VF8};
+ unsigned Op =
+ (ISD == ISD::SIGN_EXTEND) ? SExtOp[PowDiff - 1] : ZExtOp[PowDiff - 1];
+ return getRISCVInstructionCost(Op, DstLT.second, CostKind);
+ }
case ISD::TRUNCATE:
if (Dst->getScalarSizeInBits() == 1) {
// We do not use several vncvt to truncate to mask vector. So we could
diff --git a/llvm/test/Analysis/CostModel/RISCV/cast.ll b/llvm/test/Analysis/CostModel/RISCV/cast.ll
index bd26c19c2f2c3c..14da9a3f79d771 100644
--- a/llvm/test/Analysis/CostModel/RISCV/cast.ll
+++ b/llvm/test/Analysis/CostModel/RISCV/cast.ll
@@ -16,74 +16,74 @@ define void @sext() {
; RV32-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v2i1_v2i64 = sext <2 x i1> undef to <2 x i64>
; RV32-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %v4i8_v4i16 = sext <4 x i8> undef to <4 x i16>
; RV32-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %v4i8_v4i32 = sext <4 x i8> undef to <4 x i32>
-; RV32-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %v4i8_v4i64 = sext <4 x i8> undef to <4 x i64>
+; RV32-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v4i8_v4i64 = sext <4 x i8> undef to <4 x i64>
; RV32-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %v4i16_v4i32 = sext <4 x i16> undef to <4 x i32>
-; RV32-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %v4i16_v4i64 = sext <4 x i16> undef to <4 x i64>
-; RV32-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %v4i32_v4i64 = sext <4 x i32> undef to <4 x i64>
+; RV32-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v4i16_v4i64 = sext <4 x i16> undef to <4 x i64>
+; RV32-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v4i32_v4i64 = sext <4 x i32> undef to <4 x i64>
; RV32-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v4i1_v4i8 = sext <4 x i1> undef to <4 x i8>
; RV32-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v4i1_v4i16 = sext <4 x i1> undef to <4 x i16>
; RV32-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v4i1_v4i32 = sext <4 x i1> undef to <4 x i32>
-; RV32-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v4i1_v4i64 = sext <4 x i1> undef to <4 x i64>
+; RV32-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %v4i1_v4i64 = sext <4 x i1> undef to <4 x i64>
; RV32-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %v8i8_v8i16 = sext <8 x i8> undef to <8 x i16>
-; RV32-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %v8i8_v8i32 = sext <8 x i8> undef to <8 x i32>
-; RV32-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %v8i8_v8i64 = sext <8 x i8> undef to <8 x i64>
-; RV32-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %v8i16_v8i32 = sext <8 x i16> undef to <8 x i32>
-; RV32-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %v8i16_v8i64 = sext <8 x i16> undef to <8 x i64>
-; RV32-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %v8i32_v8i64 = sext <8 x i32> undef to <8 x i64>
+; RV32-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v8i8_v8i32 = sext <8 x i8> undef to <8 x i32>
+; RV32-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %v8i8_v8i64 = sext <8 x i8> undef to <8 x i64>
+; RV32-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v8i16_v8i32 = sext <8 x i16> undef to <8 x i32>
+; RV32-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %v8i16_v8i64 = sext <8 x i16> undef to <8 x i64>
+; RV32-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %v8i32_v8i64 = sext <8 x i32> undef to <8 x i64>
; RV32-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v8i1_v8i8 = sext <8 x i1> undef to <8 x i8>
; RV32-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v8i1_v8i16 = sext <8 x i1> undef to <8 x i16>
-; RV32-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v8i1_v8i32 = sext <8 x i1> undef to <8 x i32>
-; RV32-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v8i1_v8i64 = sext <8 x i1> undef to <8 x i64>
-; RV32-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %v16i8_v16i16 = sext <16 x i8> undef to <16 x i16>
-; RV32-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %v16i8_v16i32 = sext <16 x i8> undef to <16 x i32>
-; RV32-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %v16i8_v16i64 = sext <16 x i8> undef to <16 x i64>
-; RV32-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %v16i16_v16i32 = sext <16 x i16> undef to <16 x i32>
-; RV32-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %v16i16_v16i64 = sext <16 x i16> undef to <16 x i64>
-; RV32-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %v16i32_v16i64 = sext <16 x i32> undef to <16 x i64>
+; RV32-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %v8i1_v8i32 = sext <8 x i1> undef to <8 x i32>
+; RV32-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %v8i1_v8i64 = sext <8 x i1> undef to <8 x i64>
+; RV32-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v16i8_v16i16 = sext <16 x i8> undef to <16 x i16>
+; RV32-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %v16i8_v16i32 = sext <16 x i8> undef to <16 x i32>
+; RV32-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %v16i8_v16i64 = sext <16 x i8> undef to <16 x i64>
+; RV32-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %v16i16_v16i32 = sext <16 x i16> undef to <16 x i32>
+; RV32-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %v16i16_v16i64 = sext <16 x i16> undef to <16 x i64>
+; RV32-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %v16i32_v16i64 = sext <16 x i32> undef to <16 x i64>
; RV32-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v16i1_v16i8 = sext <16 x i1> undef to <16 x i8>
-; RV32-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v16i1_v16i16 = sext <16 x i1> undef to <16 x i16>
-; RV32-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v16i1_v16i32 = sext <16 x i1> undef to <16 x i32>
-; RV32-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v16i1_v16i64 = sext <16 x i1> undef to <16 x i64>
-; RV32-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %v32i8_v32i16 = sext <32 x i8> undef to <32 x i16>
-; RV32-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %v32i8_v32i32 = sext <32 x i8> undef to <32 x i32>
-; RV32-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %v32i8_v32i64 = sext <32 x i8> undef to <32 x i64>
-; RV32-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %v32i16_v32i32 = sext <32 x i16> undef to <32 x i32>
-; RV32-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %v32i16_v32i64 = sext <32 x i16> undef to <32 x i64>
-; RV32-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %v32i32_v32i64 = sext <32 x i32> undef to <32 x i64>
-; RV32-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v32i1_v32i8 = sext <32 x i1> undef to <32 x i8>
-; RV32-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v32i1_v32i16 = sext <32 x i1> undef to <32 x i16>
-; RV32-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v32i1_v32i32 = sext <32 x i1> undef to <32 x i32>
-; RV32-NEXT: Cost Model: Found an estimated cost of 5 for instruction: %v32i1_v32i64 = sext <32 x i1> undef to <32 x i64>
-; RV32-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %v64i8_v64i16 = sext <64 x i8> undef to <64 x i16>
-; RV32-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %v64i8_v64i32 = sext <64 x i8> undef to <64 x i32>
-; RV32-NEXT: Cost Model: Found an estimated cost of 7 for instruction: %v64i8_v64i64 = sext <64 x i8> undef to <64 x i64>
-; RV32-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %v64i16_v64i32 = sext <64 x i16> undef to <64 x i32>
-; RV32-NEXT: Cost Model: Found an estimated cost of 7 for instruction: %v64i16_v64i64 = sext <64 x i16> undef to <64 x i64>
-; RV32-NEXT: Cost Model: Found an estimated cost of 6 for instruction: %v64i32_v64i64 = sext <64 x i32> undef to <64 x i64>
-; RV32-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v64i1_v64i8 = sext <64 x i1> undef to <64 x i8>
-; RV32-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v64i1_v64i16 = sext <64 x i1> undef to <64 x i16>
-; RV32-NEXT: Cost Model: Found an estimated cost of 5 for instruction: %v64i1_v64i32 = sext <64 x i1> undef to <64 x i32>
-; RV32-NEXT: Cost Model: Found an estimated cost of 11 for instruction: %v64i1_v64i64 = sext <64 x i1> undef to <64 x i64>
-; RV32-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %v128i8_v128i16 = sext <128 x i8> undef to <128 x i16>
-; RV32-NEXT: Cost Model: Found an estimated cost of 7 for instruction: %v128i8_v128i32 = sext <128 x i8> undef to <128 x i32>
-; RV32-NEXT: Cost Model: Found an estimated cost of 15 for instruction: %v128i8_v128i64 = sext <128 x i8> undef to <128 x i64>
-; RV32-NEXT: Cost Model: Found an estimated cost of 6 for instruction: %v128i16_v128i32 = sext <128 x i16> undef to <128 x i32>
-; RV32-NEXT: Cost Model: Found an estimated cost of 14 for instruction: %v128i16_v128i64 = sext <128 x i16> undef to <128 x i64>
-; RV32-NEXT: Cost Model: Found an estimated cost of 12 for instruction: %v128i32_v128i64 = sext <128 x i32> undef to <128 x i64>
-; RV32-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v128i1_v128i8 = sext <128 x i1> undef to <128 x i8>
-; RV32-NEXT: Cost Model: Found an estimated cost of 5 for instruction: %v128i1_v128i16 = sext <128 x i1> undef to <128 x i16>
-; RV32-NEXT: Cost Model: Found an estimated cost of 11 for instruction: %v128i1_v128i32 = sext <128 x i1> undef to <128 x i32>
-; RV32-NEXT: Cost Model: Found an estimated cost of 23 for instruction: %v128i1_v128i64 = sext <128 x i1> undef to <128 x i64>
-; RV32-NEXT: Cost Model: Found an estimated cost of 6 for instruction: %v256i8_v256i16 = sext <256 x i8> undef to <256 x i16>
-; RV32-NEXT: Cost Model: Found an estimated cost of 14 for instruction: %v256i8_v256i32 = sext <256 x i8> undef to <256 x i32>
-; RV32-NEXT: Cost Model: Found an estimated cost of 30 for instruction: %v256i8_v256i64 = sext <256 x i8> undef to <256 x i64>
-; RV32-NEXT: Cost Model: Found an estimated cost of 12 for instruction: %v256i16_v256i32 = sext <256 x i16> undef to <256 x i32>
-; RV32-NEXT: Cost Model: Found an estimated cost of 28 for instruction: %v256i16_v256i64 = sext <256 x i16> undef to <256 x i64>
-; RV32-NEXT: Cost Model: Found an estimated cost of 24 for instruction: %v256i32_v256i64 = sext <256 x i32> undef to <256 x i64>
-; RV32-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %v256i1_v256i8 = sext <256 x i1> undef to <256 x i8>
-; RV32-NEXT: Cost Model: Found an estimated cost of 10 for instruction: %v256i1_v256i16 = sext <256 x i1> undef to <256 x i16>
-; RV32-NEXT: Cost Model: Found an estimated cost of 22 for instruction: %v256i1_v256i32 = sext <256 x i1> undef to <256 x i32>
-; RV32-NEXT: Cost Model: Found an estimated cost of 46 for instruction: %v256i1_v256i64 = sext <256 x i1> undef to <256 x i64>
+; RV32-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %v16i1_v16i16 = sext <16 x i1> undef to <16 x i16>
+; RV32-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %v16i1_v16i32 = sext <16 x i1> undef to <16 x i32>
+; RV32-NEXT: Cost Model: Found an estimated cost of 16 for instruction: %v16i1_v16i64 = sext <16 x i1> undef to <16 x i64>
+; RV32-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %v32i8_v32i16 = sext <32 x i8> undef to <32 x i16>
+; RV32-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %v32i8_v32i32 = sext <32 x i8> undef to <32 x i32>
+; RV32-NEXT: Cost Model: Found an estimated cost of 17 for instruction: %v32i8_v32i64 = sext <32 x i8> undef to <32 x i64>
+; RV32-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %v32i16_v32i32 = sext <32 x i16> undef to <32 x i32>
+; RV32-NEXT: Cost Model: Found an estimated cost of 17 for instruction: %v32i16_v32i64 = sext <32 x i16> undef to <32 x i64>
+; RV32-NEXT: Cost Model: Found an estimated cost of 17 for instruction: %v32i32_v32i64 = sext <32 x i32> undef to <32 x i64>
+; RV32-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %v32i1_v32i8 = sext <32 x i1> undef to <32 x i8>
+; RV32-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %v32i1_v32i16 = sext <32 x i1> undef to <32 x i16>
+; RV32-NEXT: Cost Model: Found an estimated cost of 16 for instruction: %v32i1_v32i32 = sext <32 x i1> undef to <32 x i32>
+; RV32-NEXT: Cost Model: Found an estimated cost of 33 for instruction: %v32i1_v32i64 = sext <32 x i1> undef to <32 x i64>
+; RV32-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %v64i8_v64i16 = sext <64 x i8> undef to <64 x i16>
+; RV32-NEXT: Cost Model: Found an estimated cost of 17 for instruction: %v64i8_v64i32 = sext <64 x i8> undef to <64 x i32>
+; RV32-NEXT: Cost Model: Found an estimated cost of 35 for instruction: %v64i8_v64i64 = sext <64 x i8> undef to <64 x i64>
+; RV32-NEXT: Cost Model: Found an estimated cost of 17 for instruction: %v64i16_v64i32 = sext <64 x i16> undef to <64 x i32>
+; RV32-NEXT: Cost Model: Found an estimated cost of 35 for instruction: %v64i16_v64i64 = sext <64 x i16> undef to <64 x i64>
+; RV32-NEXT: Cost Model: Found an estimated cost of 34 for instruction: %v64i32_v64i64 = sext <64 x i32> undef to <64 x i64>
+; RV32-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %v64i1_v64i8 = sext <64 x i1> undef to <64 x i8>
+; RV32-NEXT: Cost Model: Found an estimated cost of 16 for instruction: %v64i1_v64i16 = sext <64 x i1> undef to <64 x i16>
+; RV32-NEXT: Cost Model: Found an estimated cost of 33 for instruction: %v64i1_v64i32 = sext <64 x i1> undef to <64 x i32>
+; RV32-NEXT: Cost Model: Found an estimated cost of 67 for instruction: %v64i1_v64i64 = sext <64 x i1> undef to <64 x i64>
+; RV32-NEXT: Cost Model: Found an estimated cost of 17 for instruction: %v128i8_v128i16 = sext <128 x i8> undef to <128 x i16>
+; RV32-NEXT: Cost Model: Found an estimated cost of 35 for instruction: %v128i8_v128i32 = sext <128 x i8> undef to <128 x i32>
+; RV32-NEXT: Cost Model: Found an estimated cost of 71 for instruction: %v128i8_v128i64 = sext <128 x i8> undef to <128 x i64>
+; RV32-NEXT: Cost Model: Found an estimated cost of 34 for instruction: %v128i16_v128i32 = sext <128 x i16> undef to <128 x i32>
+; RV32-NEXT: Cost Model: Found an estimated cost of 70 for instruction: %v128i16_v128i64 = sext <128 x i16> undef to <128 x i64>
+; RV32-NEXT: Cost Model: Found an estimated cost of 68 for instruction: %v128i32_v128i64 = sext <128 x i32> undef to <128 x i64>
+; RV32-NEXT: Cost Model: Found an estimated cost of 16 for instruction: %v128i1_v128i8 = sext <128 x i1> undef to <128 x i8>
+; RV32-NEXT: Cost Model: Found an estimated cost of 33 for instruction: %v128i1_v128i16 = sext <128 x i1> undef to <128 x i16>
+; RV32-NEXT: Cost Model: Found an estimated cost of 67 for instruction: %v128i1_v128i32 = sext <128 x i1> undef to <128 x i32>
+; RV32-NEXT: Cost Model: Found an estimated cost of 135 for instruction: %v128i1_v128i64 = sext <128 x i1> undef to <128 x i64>
+; RV32-NEXT: Cost Model: Found an estimated cost of 34 for instruction: %v256i8_v256i16 = sext <256 x i8> undef to <256 x i16>
+; RV32-NEXT: Cost Model: Found an estimated cost of 70 for instruction: %v256i8_v256i32 = sext <256 x i8> undef to <256 x i32>
+; RV32-NEXT: Cost Model: Found an estimated cost of 142 for instruction: %v256i8_v256i64 = sext <256 x i8> undef to <256 x i64>
+; RV32-NEXT: Cost Model: Found an estimated cost of 68 for instruction: %v256i16_v256i32 = sext <256 x i16> undef to <256 x i32>
+; RV32-NEXT: Cost Model: Found an estimated cost of 140 for instruction: %v256i16_v256i64 = sext <256 x i16> undef to <256 x i64>
+; RV32-NEXT: Cost Model: Found an estimated cost of 136 for instruction: %v256i32_v256i64 = sext <256 x i32> undef to <256 x i64>
+; RV32-NEXT: Cost Model: Found an estimated cost of 32 for instruction: %v256i1_v256i8 = sext <256 x i1> undef to <256 x i8>
+; RV32-NEXT: Cost Model: Found an estimated cost of 66 for instruction: %v256i1_v256i16 = sext <256 x i1> undef to <256 x i16>
+; RV32-NEXT: Cost Model: Found an estimated cost of 134 for instruction: %v256i1_v256i32 = sext <256 x i1> undef to <256 x i32>
+; RV32-NEXT: Cost Model: Found an estimated cost of 270 for instruction: %v256i1_v256i64 = sext <256 x i1> undef to <256 x i64>
; RV32-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %nxv1i8_nxv1i16 = sext <vscale x 1 x i8> undef to <vscale x 1 x i16>
; RV32-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %nxv1i8_nxv1i32 = sext <vscale x 1 x i8> undef to <vscale x 1 x i32>
; RV32-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %nxv1i8_nxv1i64 = sext <vscale x 1 x i8> undef to <vscale x 1 x i64>
@@ -96,73 +96,73 @@ define void @sext() {
; RV32-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv1i1_nxv1i64 = sext <vscale x 1 x i1> undef to <vscale x 1 x i64>
; RV32-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %nxv2i8_nxv2i16 = sext <vscale x 2 x i8> undef to <vscale x 2 x i16>
; RV32-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %nxv2i8_nxv2i32 = sext <vscale x 2 x i8> undef to <vscale x 2 x i32>
-; RV32-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %nxv2i8_nxv2i64 = sext <vscale x 2 x i8> undef to <vscale x 2 x i64>
+; RV32-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv2i8_nxv2i64 = sext <vscale x 2 x i8> undef to <vscale x 2 x i64>
; RV32-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %nxv2i16_nxv2i32 = sext <vscale x 2 x i16> undef to <vscale x 2 x i32>
-; RV32-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %nxv2i16_nxv2i64 = sext <vscale x 2 x i16> undef to <vscale x 2 x i64>
-; RV32-NEXT: Cost Model: Found an estimated cost ...
[truncated]
``````````
</details>
https://github.com/llvm/llvm-project/pull/86617
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