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[AArch64][CostModel] Add SVE bfloat arithmetic tests (NFC) #166951

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Merged
merged 3 commits into from
Nov 11, 2025
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[AArch64][CostModel] Add SVE bfloat arithmetic tests (NFC) #166951

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[AArch64][CostModel] Add SVE bfloat arithmetic tests (NFC)
MacDue Nov 7, 2025
ecdadc1
Fixups
MacDue Nov 7, 2025
92e7ea1
Rework test
MacDue Nov 10, 2025
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130 changes: 129 additions & 1 deletion llvm/test/Analysis/CostModel/AArch64/sve-arith-fp.ll
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py
; RUN: opt < %s -enable-no-nans-fp-math -passes="print<cost-model>" -cost-kind=all 2>&1 -disable-output -mtriple=aarch64 -mattr=+fullfp16 -mattr=+sve | FileCheck %s
; RUN: opt < %s -enable-no-nans-fp-math -passes="print<cost-model>" -cost-kind=all 2>&1 -disable-output -mtriple=aarch64 -mattr=+fullfp16,+sve | FileCheck %s --check-prefixes=CHECK,CHECK-BASE
; RUN: opt < %s -enable-no-nans-fp-math -passes="print<cost-model>" -cost-kind=all 2>&1 -disable-output -mtriple=aarch64 -mattr=+fullfp16,+sve-b16b16,+sve | FileCheck %s --check-prefixes=CHECK,CHECK-BF16

target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"

Expand Down Expand Up @@ -31,6 +32,21 @@ define void @fadd() {
ret void
}

define void @fadd_bf16() {
; CHECK-LABEL: 'fadd_bf16'
; CHECK-NEXT: Cost Model: Found costs of RThru:11 CodeSize:1 Lat:3 SizeLat:1 for: %NXV4BF16 = fadd <vscale x 4 x bfloat> poison, poison
; CHECK-NEXT: Cost Model: Found costs of RThru:27 CodeSize:1 Lat:3 SizeLat:1 for: %NXV8BF16 = fadd <vscale x 8 x bfloat> poison, poison
; CHECK-NEXT: Cost Model: Found costs of RThru:54 CodeSize:1 Lat:3 SizeLat:1 for: %NXV16BF16 = fadd <vscale x 16 x bfloat> poison, poison
; CHECK-NEXT: Cost Model: Found costs of RThru:0 CodeSize:1 Lat:1 SizeLat:1 for: ret void
;
%NXV4BF16 = fadd <vscale x 4 x bfloat> poison, poison
%NXV8BF16 = fadd <vscale x 8 x bfloat> poison, poison
%NXV16BF16 = fadd <vscale x 16 x bfloat> poison, poison

ret void
}


define void @fsub() {
; CHECK-LABEL: 'fsub'
; CHECK-NEXT: Cost Model: Found costs of RThru:1 CodeSize:1 Lat:3 SizeLat:1 for: %V4F16 = fsub <vscale x 4 x half> poison, poison
Expand Down Expand Up @@ -59,6 +75,20 @@ define void @fsub() {
ret void
}

define void @fsub_bf16() {
; CHECK-LABEL: 'fsub_bf16'
; CHECK-NEXT: Cost Model: Found costs of RThru:11 CodeSize:1 Lat:3 SizeLat:1 for: %NXV4BF16 = fsub <vscale x 4 x bfloat> poison, poison
; CHECK-NEXT: Cost Model: Found costs of RThru:27 CodeSize:1 Lat:3 SizeLat:1 for: %NXV8BF16 = fsub <vscale x 8 x bfloat> poison, poison
; CHECK-NEXT: Cost Model: Found costs of RThru:54 CodeSize:1 Lat:3 SizeLat:1 for: %NXV16BF16 = fsub <vscale x 16 x bfloat> poison, poison
; CHECK-NEXT: Cost Model: Found costs of RThru:0 CodeSize:1 Lat:1 SizeLat:1 for: ret void
;
%NXV4BF16 = fsub <vscale x 4 x bfloat> poison, poison
%NXV8BF16 = fsub <vscale x 8 x bfloat> poison, poison
%NXV16BF16 = fsub <vscale x 16 x bfloat> poison, poison

ret void
}

define void @fneg() {
; CHECK-LABEL: 'fneg'
; CHECK-NEXT: Cost Model: Found costs of RThru:1 CodeSize:1 Lat:3 SizeLat:1 for: %V2F16 = fneg <vscale x 2 x half> poison
Expand Down Expand Up @@ -87,6 +117,22 @@ define void @fneg() {
ret void
}

define void @fneg_bf16() {
; CHECK-LABEL: 'fneg_bf16'
; CHECK-NEXT: Cost Model: Found costs of RThru:1 CodeSize:1 Lat:3 SizeLat:1 for: %NXV2BF16 = fneg <vscale x 2 x bfloat> poison
; CHECK-NEXT: Cost Model: Found costs of RThru:1 CodeSize:1 Lat:3 SizeLat:1 for: %NXV4BF16 = fneg <vscale x 4 x bfloat> poison
; CHECK-NEXT: Cost Model: Found costs of RThru:1 CodeSize:1 Lat:3 SizeLat:1 for: %NXV8BF16 = fneg <vscale x 8 x bfloat> poison
; CHECK-NEXT: Cost Model: Found costs of RThru:2 CodeSize:1 Lat:3 SizeLat:1 for: %NXV16BF16 = fneg <vscale x 16 x bfloat> poison
; CHECK-NEXT: Cost Model: Found costs of RThru:0 CodeSize:1 Lat:1 SizeLat:1 for: ret void
;
%NXV2BF16 = fneg <vscale x 2 x bfloat> poison
%NXV4BF16 = fneg <vscale x 4 x bfloat> poison
%NXV8BF16 = fneg <vscale x 8 x bfloat> poison
%NXV16BF16 = fneg <vscale x 16 x bfloat> poison

ret void
}

define void @fmul() {
; CHECK-LABEL: 'fmul'
; CHECK-NEXT: Cost Model: Found costs of RThru:2 CodeSize:1 Lat:3 SizeLat:1 for: %V4F16 = fmul <vscale x 4 x half> poison, poison
Expand All @@ -113,6 +159,20 @@ define void @fmul() {
ret void
}

define void @fmul_bf16() {
; CHECK-LABEL: 'fmul_bf16'
; CHECK-NEXT: Cost Model: Found costs of RThru:12 CodeSize:1 Lat:3 SizeLat:1 for: %NXV4BF16 = fmul <vscale x 4 x bfloat> poison, poison
; CHECK-NEXT: Cost Model: Found costs of RThru:29 CodeSize:1 Lat:3 SizeLat:1 for: %NXV8BF16 = fmul <vscale x 8 x bfloat> poison, poison
; CHECK-NEXT: Cost Model: Found costs of RThru:58 CodeSize:1 Lat:3 SizeLat:1 for: %NXV16BF16 = fmul <vscale x 16 x bfloat> poison, poison
; CHECK-NEXT: Cost Model: Found costs of RThru:0 CodeSize:1 Lat:1 SizeLat:1 for: ret void
;
%NXV4BF16 = fmul <vscale x 4 x bfloat> poison, poison
%NXV8BF16 = fmul <vscale x 8 x bfloat> poison, poison
%NXV16BF16 = fmul <vscale x 16 x bfloat> poison, poison

ret void
}

define void @fdiv() {
; CHECK-LABEL: 'fdiv'
; CHECK-NEXT: Cost Model: Found costs of RThru:2 CodeSize:4 Lat:4 SizeLat:4 for: %V4F16 = fdiv <vscale x 4 x half> poison, poison
Expand All @@ -139,6 +199,20 @@ define void @fdiv() {
ret void
}

define void @fdiv_bf16() {
; CHECK-LABEL: 'fdiv_bf16'
; CHECK-NEXT: Cost Model: Found costs of RThru:12 CodeSize:4 Lat:4 SizeLat:4 for: %NXV4BF16 = fdiv <vscale x 4 x bfloat> poison, poison
; CHECK-NEXT: Cost Model: Found costs of RThru:29 CodeSize:4 Lat:4 SizeLat:4 for: %NXV8BF16 = fdiv <vscale x 8 x bfloat> poison, poison
; CHECK-NEXT: Cost Model: Found costs of RThru:58 CodeSize:4 Lat:4 SizeLat:4 for: %NXV16BF16 = fdiv <vscale x 16 x bfloat> poison, poison
; CHECK-NEXT: Cost Model: Found costs of RThru:0 CodeSize:1 Lat:1 SizeLat:1 for: ret void
;
%NXV4BF16 = fdiv <vscale x 4 x bfloat> poison, poison
%NXV8BF16 = fdiv <vscale x 8 x bfloat> poison, poison
%NXV16BF16 = fdiv <vscale x 16 x bfloat> poison, poison

ret void
}

define void @frem() {
; CHECK-LABEL: 'frem'
; CHECK-NEXT: Cost Model: Found costs of RThru:Invalid CodeSize:4 Lat:4 SizeLat:4 for: %V4F16 = frem <vscale x 4 x half> poison, poison
Expand All @@ -165,6 +239,20 @@ define void @frem() {
ret void
}

define void @frem_bf16() {
; CHECK-LABEL: 'frem_bf16'
; CHECK-NEXT: Cost Model: Found costs of RThru:Invalid CodeSize:4 Lat:4 SizeLat:4 for: %NXV4BF16 = frem <vscale x 4 x bfloat> poison, poison
; CHECK-NEXT: Cost Model: Found costs of RThru:Invalid CodeSize:4 Lat:4 SizeLat:4 for: %NXV8BF16 = frem <vscale x 8 x bfloat> poison, poison
; CHECK-NEXT: Cost Model: Found costs of RThru:Invalid CodeSize:4 Lat:4 SizeLat:4 for: %NXV16BF16 = frem <vscale x 16 x bfloat> poison, poison
; CHECK-NEXT: Cost Model: Found costs of RThru:0 CodeSize:1 Lat:1 SizeLat:1 for: ret void
;
%NXV4BF16 = frem <vscale x 4 x bfloat> poison, poison
%NXV8BF16 = frem <vscale x 8 x bfloat> poison, poison
%NXV16BF16 = frem <vscale x 16 x bfloat> poison, poison

ret void
}

define void @fma() {
; CHECK-LABEL: 'fma'
; CHECK-NEXT: Cost Model: Found costs of RThru:2 CodeSize:1 Lat:3 SizeLat:1 for: %V4F16 = call <vscale x 4 x half> @llvm.fma.nxv4f16(<vscale x 4 x half> poison, <vscale x 4 x half> poison, <vscale x 4 x half> poison)
Expand All @@ -191,6 +279,26 @@ define void @fma() {
ret void
}

define void @fma_bf16() {
; CHECK-BASE-LABEL: 'fma_bf16'
; CHECK-BASE-NEXT: Cost Model: Found costs of 1 for: %NXV4BF16 = call <vscale x 4 x bfloat> @llvm.fma.nxv4bf16(<vscale x 4 x bfloat> poison, <vscale x 4 x bfloat> poison, <vscale x 4 x bfloat> poison)
; CHECK-BASE-NEXT: Cost Model: Found costs of 1 for: %NXV8BF16 = call <vscale x 8 x bfloat> @llvm.fma.nxv8bf16(<vscale x 8 x bfloat> poison, <vscale x 8 x bfloat> poison, <vscale x 8 x bfloat> poison)
; CHECK-BASE-NEXT: Cost Model: Found costs of 4 for: %NXV16BF16 = call <vscale x 16 x bfloat> @llvm.fma.nxv16bf16(<vscale x 16 x bfloat> poison, <vscale x 16 x bfloat> poison, <vscale x 16 x bfloat> poison)
; CHECK-BASE-NEXT: Cost Model: Found costs of RThru:0 CodeSize:1 Lat:1 SizeLat:1 for: ret void
;
; CHECK-BF16-LABEL: 'fma_bf16'
; CHECK-BF16-NEXT: Cost Model: Found costs of 2 for: %NXV4BF16 = call <vscale x 4 x bfloat> @llvm.fma.nxv4bf16(<vscale x 4 x bfloat> poison, <vscale x 4 x bfloat> poison, <vscale x 4 x bfloat> poison)
; CHECK-BF16-NEXT: Cost Model: Found costs of 2 for: %NXV8BF16 = call <vscale x 8 x bfloat> @llvm.fma.nxv8bf16(<vscale x 8 x bfloat> poison, <vscale x 8 x bfloat> poison, <vscale x 8 x bfloat> poison)
; CHECK-BF16-NEXT: Cost Model: Found costs of 4 for: %NXV16BF16 = call <vscale x 16 x bfloat> @llvm.fma.nxv16bf16(<vscale x 16 x bfloat> poison, <vscale x 16 x bfloat> poison, <vscale x 16 x bfloat> poison)
; CHECK-BF16-NEXT: Cost Model: Found costs of RThru:0 CodeSize:1 Lat:1 SizeLat:1 for: ret void
;
%NXV4BF16 = call <vscale x 4 x bfloat> @llvm.fma.nxv4bf16(<vscale x 4 x bfloat> poison, <vscale x 4 x bfloat> poison, <vscale x 4 x bfloat> poison)
%NXV8BF16 = call <vscale x 8 x bfloat> @llvm.fma.nxv8bf16(<vscale x 8 x bfloat> poison, <vscale x 8 x bfloat> poison, <vscale x 8 x bfloat> poison)
%NXV16BF16 = call <vscale x 16 x bfloat> @llvm.fma.nxv16bf16(<vscale x 16 x bfloat> poison, <vscale x 16 x bfloat> poison, <vscale x 16 x bfloat> poison)

ret void
}

define void @fmuladd() {
; CHECK-LABEL: 'fmuladd'
; CHECK-NEXT: Cost Model: Found costs of RThru:2 CodeSize:1 Lat:3 SizeLat:1 for: %V4F16 = call <vscale x 4 x half> @llvm.fmuladd.nxv4f16(<vscale x 4 x half> poison, <vscale x 4 x half> poison, <vscale x 4 x half> poison)
Expand All @@ -216,3 +324,23 @@ define void @fmuladd() {

ret void
}

define void @fmuladd_bf16() {
; CHECK-BASE-LABEL: 'fmuladd_bf16'
; CHECK-BASE-NEXT: Cost Model: Found costs of 1 for: %NXV4BF16 = call <vscale x 4 x bfloat> @llvm.fmuladd.nxv4bf16(<vscale x 4 x bfloat> poison, <vscale x 4 x bfloat> poison, <vscale x 4 x bfloat> poison)
; CHECK-BASE-NEXT: Cost Model: Found costs of 1 for: %NXV8BF16 = call <vscale x 8 x bfloat> @llvm.fmuladd.nxv8bf16(<vscale x 8 x bfloat> poison, <vscale x 8 x bfloat> poison, <vscale x 8 x bfloat> poison)
; CHECK-BASE-NEXT: Cost Model: Found costs of 4 for: %NXV16BF16 = call <vscale x 16 x bfloat> @llvm.fmuladd.nxv16bf16(<vscale x 16 x bfloat> poison, <vscale x 16 x bfloat> poison, <vscale x 16 x bfloat> poison)
; CHECK-BASE-NEXT: Cost Model: Found costs of RThru:0 CodeSize:1 Lat:1 SizeLat:1 for: ret void
;
; CHECK-BF16-LABEL: 'fmuladd_bf16'
; CHECK-BF16-NEXT: Cost Model: Found costs of 2 for: %NXV4BF16 = call <vscale x 4 x bfloat> @llvm.fmuladd.nxv4bf16(<vscale x 4 x bfloat> poison, <vscale x 4 x bfloat> poison, <vscale x 4 x bfloat> poison)
; CHECK-BF16-NEXT: Cost Model: Found costs of 2 for: %NXV8BF16 = call <vscale x 8 x bfloat> @llvm.fmuladd.nxv8bf16(<vscale x 8 x bfloat> poison, <vscale x 8 x bfloat> poison, <vscale x 8 x bfloat> poison)
; CHECK-BF16-NEXT: Cost Model: Found costs of 4 for: %NXV16BF16 = call <vscale x 16 x bfloat> @llvm.fmuladd.nxv16bf16(<vscale x 16 x bfloat> poison, <vscale x 16 x bfloat> poison, <vscale x 16 x bfloat> poison)
; CHECK-BF16-NEXT: Cost Model: Found costs of RThru:0 CodeSize:1 Lat:1 SizeLat:1 for: ret void
;
%NXV4BF16 = call <vscale x 4 x bfloat> @llvm.fmuladd.nxv4bf16(<vscale x 4 x bfloat> poison, <vscale x 4 x bfloat> poison, <vscale x 4 x bfloat> poison)
%NXV8BF16 = call <vscale x 8 x bfloat> @llvm.fmuladd.nxv8bf16(<vscale x 8 x bfloat> poison, <vscale x 8 x bfloat> poison, <vscale x 8 x bfloat> poison)
%NXV16BF16 = call <vscale x 16 x bfloat> @llvm.fmuladd.nxv16bf16(<vscale x 16 x bfloat> poison, <vscale x 16 x bfloat> poison, <vscale x 16 x bfloat> poison)

ret void
}