[llvm] [RISCV][TTI] Model the cost of extractelt when the vector split into multiple register group and idx exceed single group. (PR #118401)
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llvm-commits at lists.llvm.org
Mon Dec 2 13:56:31 PST 2024
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-llvm-analysis
Author: Elvis Wang (ElvisWang123)
<details>
<summary>Changes</summary>
This patch implements the cost when the size of the vector need to split into multiple groups and the index exceed single vector group. Under this situation, we need the store the entire vector to stack then load the target element.
After this patch, the cost of extractelement will close to the generated assembly.
---
Patch is 36.77 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/118401.diff
2 Files Affected:
- (modified) llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp (+17)
- (modified) llvm/test/Analysis/CostModel/RISCV/rvv-extractelement.ll (+44-44)
``````````diff
diff --git a/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp b/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
index 57f635ca6f42a8..20ca80aedab62c 100644
--- a/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
+++ b/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
@@ -1945,6 +1945,23 @@ InstructionCost RISCVTTIImpl::getVectorInstrCost(unsigned Opcode, Type *Val,
// TODO: should we count these special vsetvlis?
BaseCost = Opcode == Instruction::InsertElement ? 3 : 4;
}
+
+ // When the vector need to split into multiple register groups and the index
+ // exceed single vector resgister group, we need to extract the element via
+ // stack.
+ if (Opcode == Instruction::ExtractElement && LT.first > 1 &&
+ ((Index == -1U) || (Index > LT.second.getVectorMinNumElements() &&
+ LT.second.isScalableVector()))) {
+ Type *ScalarType = Val->getScalarType();
+ Align VecAlign = DL.getPrefTypeAlign(Val);
+ Align SclAlign = DL.getPrefTypeAlign(ScalarType);
+ // Store all split vectors into stack and load the target element.
+ return LT.first *
+ getMemoryOpCost(Instruction::Store, Val, VecAlign, 0, CostKind) +
+ getMemoryOpCost(Instruction::Load, ScalarType, SclAlign, 0,
+ CostKind);
+ }
+
return BaseCost + SlideCost;
}
diff --git a/llvm/test/Analysis/CostModel/RISCV/rvv-extractelement.ll b/llvm/test/Analysis/CostModel/RISCV/rvv-extractelement.ll
index 618b7bc8945a50..34a323066689ba 100644
--- a/llvm/test/Analysis/CostModel/RISCV/rvv-extractelement.ll
+++ b/llvm/test/Analysis/CostModel/RISCV/rvv-extractelement.ll
@@ -139,7 +139,7 @@ define void @extractelement_int(i32 %x) {
; RV32V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv16i8_x = extractelement <vscale x 16 x i8> undef, i32 %x
; RV32V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv32i8_x = extractelement <vscale x 32 x i8> undef, i32 %x
; RV32V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv64i8_x = extractelement <vscale x 64 x i8> undef, i32 %x
-; RV32V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv128i8_x = extractelement <vscale x 128 x i8> undef, i32 %x
+; RV32V-NEXT: Cost Model: Found an estimated cost of 33 for instruction: %nxv128i8_x = extractelement <vscale x 128 x i8> undef, i32 %x
; RV32V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v2i16_x = extractelement <2 x i16> undef, i32 %x
; RV32V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v4i16_x = extractelement <4 x i16> undef, i32 %x
; RV32V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v8i16_x = extractelement <8 x i16> undef, i32 %x
@@ -151,7 +151,7 @@ define void @extractelement_int(i32 %x) {
; RV32V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv8i16_x = extractelement <vscale x 8 x i16> undef, i32 %x
; RV32V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv16i16_x = extractelement <vscale x 16 x i16> undef, i32 %x
; RV32V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv32i16_x = extractelement <vscale x 32 x i16> undef, i32 %x
-; RV32V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv64i16_x = extractelement <vscale x 64 x i16> undef, i32 %x
+; RV32V-NEXT: Cost Model: Found an estimated cost of 33 for instruction: %nxv64i16_x = extractelement <vscale x 64 x i16> undef, i32 %x
; RV32V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v2i32_x = extractelement <2 x i32> undef, i32 %x
; RV32V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v4i32_x = extractelement <4 x i32> undef, i32 %x
; RV32V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v8i32_x = extractelement <8 x i32> undef, i32 %x
@@ -161,7 +161,7 @@ define void @extractelement_int(i32 %x) {
; RV32V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv4i32_x = extractelement <vscale x 4 x i32> undef, i32 %x
; RV32V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv8i32_x = extractelement <vscale x 8 x i32> undef, i32 %x
; RV32V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv16i32_x = extractelement <vscale x 16 x i32> undef, i32 %x
-; RV32V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv32i32_x = extractelement <vscale x 32 x i32> undef, i32 %x
+; RV32V-NEXT: Cost Model: Found an estimated cost of 33 for instruction: %nxv32i32_x = extractelement <vscale x 32 x i32> undef, i32 %x
; RV32V-NEXT: Cost Model: Found an estimated cost of 5 for instruction: %v2i64_x = extractelement <2 x i64> undef, i32 %x
; RV32V-NEXT: Cost Model: Found an estimated cost of 5 for instruction: %v4i64_x = extractelement <4 x i64> undef, i32 %x
; RV32V-NEXT: Cost Model: Found an estimated cost of 5 for instruction: %v8i64_x = extractelement <8 x i64> undef, i32 %x
@@ -169,7 +169,7 @@ define void @extractelement_int(i32 %x) {
; RV32V-NEXT: Cost Model: Found an estimated cost of 5 for instruction: %nxv2i64_x = extractelement <vscale x 2 x i64> undef, i32 %x
; RV32V-NEXT: Cost Model: Found an estimated cost of 5 for instruction: %nxv4i64_x = extractelement <vscale x 4 x i64> undef, i32 %x
; RV32V-NEXT: Cost Model: Found an estimated cost of 5 for instruction: %nxv8i64_x = extractelement <vscale x 8 x i64> undef, i32 %x
-; RV32V-NEXT: Cost Model: Found an estimated cost of 5 for instruction: %nxv16i64_x = extractelement <vscale x 16 x i64> undef, i32 %x
+; RV32V-NEXT: Cost Model: Found an estimated cost of 34 for instruction: %nxv16i64_x = extractelement <vscale x 16 x i64> undef, i32 %x
; RV32V-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
; RV64V-LABEL: 'extractelement_int'
@@ -304,7 +304,7 @@ define void @extractelement_int(i32 %x) {
; RV64V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv16i8_x = extractelement <vscale x 16 x i8> undef, i32 %x
; RV64V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv32i8_x = extractelement <vscale x 32 x i8> undef, i32 %x
; RV64V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv64i8_x = extractelement <vscale x 64 x i8> undef, i32 %x
-; RV64V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv128i8_x = extractelement <vscale x 128 x i8> undef, i32 %x
+; RV64V-NEXT: Cost Model: Found an estimated cost of 33 for instruction: %nxv128i8_x = extractelement <vscale x 128 x i8> undef, i32 %x
; RV64V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v2i16_x = extractelement <2 x i16> undef, i32 %x
; RV64V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v4i16_x = extractelement <4 x i16> undef, i32 %x
; RV64V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v8i16_x = extractelement <8 x i16> undef, i32 %x
@@ -316,7 +316,7 @@ define void @extractelement_int(i32 %x) {
; RV64V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv8i16_x = extractelement <vscale x 8 x i16> undef, i32 %x
; RV64V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv16i16_x = extractelement <vscale x 16 x i16> undef, i32 %x
; RV64V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv32i16_x = extractelement <vscale x 32 x i16> undef, i32 %x
-; RV64V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv64i16_x = extractelement <vscale x 64 x i16> undef, i32 %x
+; RV64V-NEXT: Cost Model: Found an estimated cost of 33 for instruction: %nxv64i16_x = extractelement <vscale x 64 x i16> undef, i32 %x
; RV64V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v2i32_x = extractelement <2 x i32> undef, i32 %x
; RV64V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v4i32_x = extractelement <4 x i32> undef, i32 %x
; RV64V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v8i32_x = extractelement <8 x i32> undef, i32 %x
@@ -326,7 +326,7 @@ define void @extractelement_int(i32 %x) {
; RV64V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv4i32_x = extractelement <vscale x 4 x i32> undef, i32 %x
; RV64V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv8i32_x = extractelement <vscale x 8 x i32> undef, i32 %x
; RV64V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv16i32_x = extractelement <vscale x 16 x i32> undef, i32 %x
-; RV64V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv32i32_x = extractelement <vscale x 32 x i32> undef, i32 %x
+; RV64V-NEXT: Cost Model: Found an estimated cost of 33 for instruction: %nxv32i32_x = extractelement <vscale x 32 x i32> undef, i32 %x
; RV64V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v2i64_x = extractelement <2 x i64> undef, i32 %x
; RV64V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v4i64_x = extractelement <4 x i64> undef, i32 %x
; RV64V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v8i64_x = extractelement <8 x i64> undef, i32 %x
@@ -334,7 +334,7 @@ define void @extractelement_int(i32 %x) {
; RV64V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv2i64_x = extractelement <vscale x 2 x i64> undef, i32 %x
; RV64V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv4i64_x = extractelement <vscale x 4 x i64> undef, i32 %x
; RV64V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv8i64_x = extractelement <vscale x 8 x i64> undef, i32 %x
-; RV64V-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv16i64_x = extractelement <vscale x 16 x i64> undef, i32 %x
+; RV64V-NEXT: Cost Model: Found an estimated cost of 33 for instruction: %nxv16i64_x = extractelement <vscale x 16 x i64> undef, i32 %x
; RV64V-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
; RV32ZVE64X-LABEL: 'extractelement_int'
@@ -462,44 +462,44 @@ define void @extractelement_int(i32 %x) {
; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v16i8_x = extractelement <16 x i8> undef, i32 %x
; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v32i8_x = extractelement <32 x i8> undef, i32 %x
; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v64i8_x = extractelement <64 x i8> undef, i32 %x
-; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v128i8_x = extractelement <128 x i8> undef, i32 %x
+; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 33 for instruction: %v128i8_x = extractelement <128 x i8> undef, i32 %x
; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv2i8_x = extractelement <vscale x 2 x i8> undef, i32 %x
; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv4i8_x = extractelement <vscale x 4 x i8> undef, i32 %x
; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv8i8_x = extractelement <vscale x 8 x i8> undef, i32 %x
; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv16i8_x = extractelement <vscale x 16 x i8> undef, i32 %x
; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv32i8_x = extractelement <vscale x 32 x i8> undef, i32 %x
; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv64i8_x = extractelement <vscale x 64 x i8> undef, i32 %x
-; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv128i8_x = extractelement <vscale x 128 x i8> undef, i32 %x
+; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 33 for instruction: %nxv128i8_x = extractelement <vscale x 128 x i8> undef, i32 %x
; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v2i16_x = extractelement <2 x i16> undef, i32 %x
; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v4i16_x = extractelement <4 x i16> undef, i32 %x
; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v8i16_x = extractelement <8 x i16> undef, i32 %x
; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v16i16_x = extractelement <16 x i16> undef, i32 %x
; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v32i16_x = extractelement <32 x i16> undef, i32 %x
-; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v64i16_x = extractelement <64 x i16> undef, i32 %x
+; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 33 for instruction: %v64i16_x = extractelement <64 x i16> undef, i32 %x
; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv2i16_x = extractelement <vscale x 2 x i16> undef, i32 %x
; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv4i16_x = extractelement <vscale x 4 x i16> undef, i32 %x
; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv8i16_x = extractelement <vscale x 8 x i16> undef, i32 %x
; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv16i16_x = extractelement <vscale x 16 x i16> undef, i32 %x
; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv32i16_x = extractelement <vscale x 32 x i16> undef, i32 %x
-; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv64i16_x = extractelement <vscale x 64 x i16> undef, i32 %x
+; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 33 for instruction: %nxv64i16_x = extractelement <vscale x 64 x i16> undef, i32 %x
; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v2i32_x = extractelement <2 x i32> undef, i32 %x
; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v4i32_x = extractelement <4 x i32> undef, i32 %x
; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v8i32_x = extractelement <8 x i32> undef, i32 %x
; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v16i32_x = extractelement <16 x i32> undef, i32 %x
-; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v32i32_x = extractelement <32 x i32> undef, i32 %x
+; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 33 for instruction: %v32i32_x = extractelement <32 x i32> undef, i32 %x
; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv2i32_x = extractelement <vscale x 2 x i32> undef, i32 %x
; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv4i32_x = extractelement <vscale x 4 x i32> undef, i32 %x
; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv8i32_x = extractelement <vscale x 8 x i32> undef, i32 %x
; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv16i32_x = extractelement <vscale x 16 x i32> undef, i32 %x
-; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv32i32_x = extractelement <vscale x 32 x i32> undef, i32 %x
+; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 33 for instruction: %nxv32i32_x = extractelement <vscale x 32 x i32> undef, i32 %x
; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 5 for instruction: %v2i64_x = extractelement <2 x i64> undef, i32 %x
; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 5 for instruction: %v4i64_x = extractelement <4 x i64> undef, i32 %x
; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 5 for instruction: %v8i64_x = extractelement <8 x i64> undef, i32 %x
-; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 5 for instruction: %v16i64_x = extractelement <16 x i64> undef, i32 %x
+; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 34 for instruction: %v16i64_x = extractelement <16 x i64> undef, i32 %x
; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 5 for instruction: %nxv2i64_x = extractelement <vscale x 2 x i64> undef, i32 %x
; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 5 for instruction: %nxv4i64_x = extractelement <vscale x 4 x i64> undef, i32 %x
; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 5 for instruction: %nxv8i64_x = extractelement <vscale x 8 x i64> undef, i32 %x
-; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 5 for instruction: %nxv16i64_x = extractelement <vscale x 16 x i64> undef, i32 %x
+; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 34 for instruction: %nxv16i64_x = extractelement <vscale x 16 x i64> undef, i32 %x
; RV32ZVE64X-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
; RV64ZVE64X-LABEL: 'extractelement_int'
@@ -627,44 +627,44 @@ define void @extractelement_int(i32 %x) {
; RV64ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v16i8_x = extractelement <16 x i8> undef, i32 %x
; RV64ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v32i8_x = extractelement <32 x i8> undef, i32 %x
; RV64ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v64i8_x = extractelement <64 x i8> undef, i32 %x
-; RV64ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v128i8_x = extractelement <128 x i8> undef, i32 %x
+; RV64ZVE64X-NEXT: Cost Model: Found an estimated cost of 33 for instruction: %v128i8_x = extractelement <128 x i8> undef, i32 %x
; RV64ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv2i8_x = extractelement <vscale x 2 x i8> undef, i32 %x
; RV64ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv4i8_x = extractelement <vscale x 4 x i8> undef, i32 %x
; RV64ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv8i8_x = extractelement <vscale x 8 x i8> undef, i32 %x
; RV64ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv16i8_x = extractelement <vscale x 16 x i8> undef, i32 %x
; RV64ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv32i8_x = extractelement <vscale x 32 x i8> undef, i32 %x
; RV64ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv64i8_x = extractelement <vscale x 64 x i8> undef, i32 %x
-; RV64ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv128i8_x = extractelement <vscale x 128 x i8> undef, i32 %x
+; RV64ZVE64X-NEXT: Cost Model: Found an estimated cost of 33 for instruction: %nxv128i8_x = extractelement <vscale x 128 x i8> undef, i32 %x
; RV64ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v2i16_x = extractelement <2 x i16> undef, i32 %x
; RV64ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v4i16_x = extractelement <4 x i16> undef, i32 %x
; RV64ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v8i16_x = extractelement <8 x i16> undef, i32 %x
; RV64ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v16i16_x = extractelement <16 x i16> undef, i32 %x
; RV64ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v32i16_x = extractelement <32 x i16> undef, i32 %x
-; RV64ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %v64i16_x = extractelement <64 x i16> undef, i32 %x
+; RV64ZVE64X-NEXT: Cost Model: Found an estimated cost of 33 for instruction: %v64i16_x = extractelement <64 x i16> undef, i32 %x
; RV64ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv2i16_x = extractelement <vscale x 2 x i16> undef, i32 %x
; RV64ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv4i16_x = extractelement <vscale x 4 x i16> undef, i32 %x
; RV64ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv8i16_x = extractelement <vscale x 8 x i16> undef, i32 %x
; RV64ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv16i16_x = extractelement <vscale x 16 x i16> undef, i32 %x
; RV64ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv32i16_x = extractelement <vscale x 32 x i16> undef, i32 %x
-; RV64ZVE64X-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %nxv64i16_x = extracte...
[truncated]
``````````
</details>
https://github.com/llvm/llvm-project/pull/118401
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