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Sep 12, 2024
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[AArch64][SLP] Add NFC test cases for floating point reductions #106507

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42 changes: 42 additions & 0 deletions llvm/test/Analysis/CostModel/AArch64/reduce-fadd.ll
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Original file line number Diff line number Diff line change
Expand Up @@ -7,8 +7,11 @@ target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"

define void @strict_fp_reductions() {
; CHECK-LABEL: 'strict_fp_reductions'
; CHECK-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %fadd_v2f16 = call half @llvm.vector.reduce.fadd.v2f16(half 0xH0000, <2 x half> undef)
; CHECK-NEXT: Cost Model: Found an estimated cost of 18 for instruction: %fadd_v4f16 = call half @llvm.vector.reduce.fadd.v4f16(half 0xH0000, <4 x half> undef)
; CHECK-NEXT: Cost Model: Found an estimated cost of 38 for instruction: %fadd_v8f16 = call half @llvm.vector.reduce.fadd.v8f16(half 0xH0000, <8 x half> undef)
; CHECK-NEXT: Cost Model: Found an estimated cost of 76 for instruction: %fadd_v16f16 = call half @llvm.vector.reduce.fadd.v16f16(half 0xH0000, <16 x half> undef)
; CHECK-NEXT: Cost Model: Found an estimated cost of 6 for instruction: %fadd_v2f32 = call float @llvm.vector.reduce.fadd.v2f32(float 0.000000e+00, <2 x float> undef)
; CHECK-NEXT: Cost Model: Found an estimated cost of 14 for instruction: %fadd_v4f32 = call float @llvm.vector.reduce.fadd.v4f32(float 0.000000e+00, <4 x float> undef)
; CHECK-NEXT: Cost Model: Found an estimated cost of 28 for instruction: %fadd_v8f32 = call float @llvm.vector.reduce.fadd.v8f32(float 0.000000e+00, <8 x float> undef)
; CHECK-NEXT: Cost Model: Found an estimated cost of 6 for instruction: %fadd_v2f64 = call double @llvm.vector.reduce.fadd.v2f64(double 0.000000e+00, <2 x double> undef)
Expand All @@ -18,8 +21,11 @@ define void @strict_fp_reductions() {
; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
; FP16-LABEL: 'strict_fp_reductions'
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These checks were removed, they must be restored

; FP16-NEXT: Cost Model: Found an estimated cost of 6 for instruction: %fadd_v2f16 = call half @llvm.vector.reduce.fadd.v2f16(half 0xH0000, <2 x half> undef)
; FP16-NEXT: Cost Model: Found an estimated cost of 14 for instruction: %fadd_v4f16 = call half @llvm.vector.reduce.fadd.v4f16(half 0xH0000, <4 x half> undef)
; FP16-NEXT: Cost Model: Found an estimated cost of 30 for instruction: %fadd_v8f16 = call half @llvm.vector.reduce.fadd.v8f16(half 0xH0000, <8 x half> undef)
; FP16-NEXT: Cost Model: Found an estimated cost of 60 for instruction: %fadd_v16f16 = call half @llvm.vector.reduce.fadd.v16f16(half 0xH0000, <16 x half> undef)
; FP16-NEXT: Cost Model: Found an estimated cost of 6 for instruction: %fadd_v2f32 = call float @llvm.vector.reduce.fadd.v2f32(float 0.000000e+00, <2 x float> undef)
; FP16-NEXT: Cost Model: Found an estimated cost of 14 for instruction: %fadd_v4f32 = call float @llvm.vector.reduce.fadd.v4f32(float 0.000000e+00, <4 x float> undef)
; FP16-NEXT: Cost Model: Found an estimated cost of 28 for instruction: %fadd_v8f32 = call float @llvm.vector.reduce.fadd.v8f32(float 0.000000e+00, <8 x float> undef)
; FP16-NEXT: Cost Model: Found an estimated cost of 6 for instruction: %fadd_v2f64 = call double @llvm.vector.reduce.fadd.v2f64(double 0.000000e+00, <2 x double> undef)
Expand All @@ -29,8 +35,11 @@ define void @strict_fp_reductions() {
; FP16-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
; BF16-LABEL: 'strict_fp_reductions'
; BF16-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %fadd_v2f16 = call half @llvm.vector.reduce.fadd.v2f16(half 0xH0000, <2 x half> undef)
; BF16-NEXT: Cost Model: Found an estimated cost of 18 for instruction: %fadd_v4f16 = call half @llvm.vector.reduce.fadd.v4f16(half 0xH0000, <4 x half> undef)
; BF16-NEXT: Cost Model: Found an estimated cost of 38 for instruction: %fadd_v8f16 = call half @llvm.vector.reduce.fadd.v8f16(half 0xH0000, <8 x half> undef)
; BF16-NEXT: Cost Model: Found an estimated cost of 76 for instruction: %fadd_v16f16 = call half @llvm.vector.reduce.fadd.v16f16(half 0xH0000, <16 x half> undef)
; BF16-NEXT: Cost Model: Found an estimated cost of 6 for instruction: %fadd_v2f32 = call float @llvm.vector.reduce.fadd.v2f32(float 0.000000e+00, <2 x float> undef)
; BF16-NEXT: Cost Model: Found an estimated cost of 14 for instruction: %fadd_v4f32 = call float @llvm.vector.reduce.fadd.v4f32(float 0.000000e+00, <4 x float> undef)
; BF16-NEXT: Cost Model: Found an estimated cost of 28 for instruction: %fadd_v8f32 = call float @llvm.vector.reduce.fadd.v8f32(float 0.000000e+00, <8 x float> undef)
; BF16-NEXT: Cost Model: Found an estimated cost of 6 for instruction: %fadd_v2f64 = call double @llvm.vector.reduce.fadd.v2f64(double 0.000000e+00, <2 x double> undef)
Expand All @@ -39,8 +48,11 @@ define void @strict_fp_reductions() {
; BF16-NEXT: Cost Model: Found an estimated cost of 20 for instruction: %fadd_v4f128 = call fp128 @llvm.vector.reduce.fadd.v4f128(fp128 undef, <4 x fp128> undef)
; BF16-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
%fadd_v2f16 = call half @llvm.vector.reduce.fadd.v2f16(half 0.0, <2 x half> undef)
%fadd_v4f16 = call half @llvm.vector.reduce.fadd.v4f16(half 0.0, <4 x half> undef)
%fadd_v8f16 = call half @llvm.vector.reduce.fadd.v8f16(half 0.0, <8 x half> undef)
%fadd_v16f16 = call half @llvm.vector.reduce.fadd.v16f16(half 0.0, <16 x half> undef)
%fadd_v2f32 = call float @llvm.vector.reduce.fadd.v2f32(float 0.0, <2 x float> undef)
%fadd_v4f32 = call float @llvm.vector.reduce.fadd.v4f32(float 0.0, <4 x float> undef)
%fadd_v8f32 = call float @llvm.vector.reduce.fadd.v8f32(float 0.0, <8 x float> undef)
%fadd_v2f64 = call double @llvm.vector.reduce.fadd.v2f64(double 0.0, <2 x double> undef)
Expand All @@ -54,12 +66,18 @@ define void @strict_fp_reductions() {

define void @fast_fp_reductions() {
; CHECK-LABEL: 'fast_fp_reductions'
; CHECK-NEXT: Cost Model: Found an estimated cost of 5 for instruction: %fadd_v2f16_fast = call fast half @llvm.vector.reduce.fadd.v2f16(half 0xH0000, <2 x half> undef)
; CHECK-NEXT: Cost Model: Found an estimated cost of 5 for instruction: %fadd_v2f16_reassoc = call reassoc half @llvm.vector.reduce.fadd.v2f16(half 0xH0000, <2 x half> undef)
; CHECK-NEXT: Cost Model: Found an estimated cost of 10 for instruction: %fadd_v4f16_fast = call fast half @llvm.vector.reduce.fadd.v4f16(half 0xH0000, <4 x half> undef)
; CHECK-NEXT: Cost Model: Found an estimated cost of 10 for instruction: %fadd_v4f16_reassoc = call reassoc half @llvm.vector.reduce.fadd.v4f16(half 0xH0000, <4 x half> undef)
; CHECK-NEXT: Cost Model: Found an estimated cost of 30 for instruction: %fadd_v8f16 = call fast half @llvm.vector.reduce.fadd.v8f16(half 0xH0000, <8 x half> undef)
; CHECK-NEXT: Cost Model: Found an estimated cost of 30 for instruction: %fadd_v8f16_reassoc = call reassoc half @llvm.vector.reduce.fadd.v8f16(half 0xH0000, <8 x half> undef)
; CHECK-NEXT: Cost Model: Found an estimated cost of 48 for instruction: %fadd_v16f16 = call fast half @llvm.vector.reduce.fadd.v16f16(half 0xH0000, <16 x half> undef)
; CHECK-NEXT: Cost Model: Found an estimated cost of 48 for instruction: %fadd_v16f16_reassoc = call reassoc half @llvm.vector.reduce.fadd.v16f16(half 0xH0000, <16 x half> undef)
; CHECK-NEXT: Cost Model: Found an estimated cost of 38 for instruction: %fadd_v11f16 = call fast half @llvm.vector.reduce.fadd.v11f16(half 0xH0000, <11 x half> undef)
; CHECK-NEXT: Cost Model: Found an estimated cost of 38 for instruction: %fadd_v13f16_reassoc = call reassoc half @llvm.vector.reduce.fadd.v13f16(half 0xH0000, <13 x half> undef)
; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %fadd_v2f32 = call fast float @llvm.vector.reduce.fadd.v2f32(float 0.000000e+00, <2 x float> undef)
; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %fadd_v2f32_reassoc = call reassoc float @llvm.vector.reduce.fadd.v2f32(float 0.000000e+00, <2 x float> undef)
; CHECK-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %fadd_v4f32 = call fast float @llvm.vector.reduce.fadd.v4f32(float 0.000000e+00, <4 x float> undef)
; CHECK-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %fadd_v4f32_reassoc = call reassoc float @llvm.vector.reduce.fadd.v4f32(float 0.000000e+00, <4 x float> undef)
; CHECK-NEXT: Cost Model: Found an estimated cost of 15 for instruction: %fadd_v8f32 = call fast float @llvm.vector.reduce.fadd.v8f32(float 0.000000e+00, <8 x float> undef)
Expand All @@ -77,12 +95,18 @@ define void @fast_fp_reductions() {
; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
; FP16-LABEL: 'fast_fp_reductions'
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same

; FP16-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %fadd_v2f16_fast = call fast half @llvm.vector.reduce.fadd.v2f16(half 0xH0000, <2 x half> undef)
; FP16-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %fadd_v2f16_reassoc = call reassoc half @llvm.vector.reduce.fadd.v2f16(half 0xH0000, <2 x half> undef)
; FP16-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %fadd_v4f16_fast = call fast half @llvm.vector.reduce.fadd.v4f16(half 0xH0000, <4 x half> undef)
; FP16-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %fadd_v4f16_reassoc = call reassoc half @llvm.vector.reduce.fadd.v4f16(half 0xH0000, <4 x half> undef)
; FP16-NEXT: Cost Model: Found an estimated cost of 27 for instruction: %fadd_v8f16 = call fast half @llvm.vector.reduce.fadd.v8f16(half 0xH0000, <8 x half> undef)
; FP16-NEXT: Cost Model: Found an estimated cost of 27 for instruction: %fadd_v8f16_reassoc = call reassoc half @llvm.vector.reduce.fadd.v8f16(half 0xH0000, <8 x half> undef)
; FP16-NEXT: Cost Model: Found an estimated cost of 44 for instruction: %fadd_v16f16 = call fast half @llvm.vector.reduce.fadd.v16f16(half 0xH0000, <16 x half> undef)
; FP16-NEXT: Cost Model: Found an estimated cost of 44 for instruction: %fadd_v16f16_reassoc = call reassoc half @llvm.vector.reduce.fadd.v16f16(half 0xH0000, <16 x half> undef)
; FP16-NEXT: Cost Model: Found an estimated cost of 35 for instruction: %fadd_v11f16 = call fast half @llvm.vector.reduce.fadd.v11f16(half 0xH0000, <11 x half> undef)
; FP16-NEXT: Cost Model: Found an estimated cost of 35 for instruction: %fadd_v13f16_reassoc = call reassoc half @llvm.vector.reduce.fadd.v13f16(half 0xH0000, <13 x half> undef)
; FP16-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %fadd_v2f32 = call fast float @llvm.vector.reduce.fadd.v2f32(float 0.000000e+00, <2 x float> undef)
; FP16-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %fadd_v2f32_reassoc = call reassoc float @llvm.vector.reduce.fadd.v2f32(float 0.000000e+00, <2 x float> undef)
; FP16-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %fadd_v4f32 = call fast float @llvm.vector.reduce.fadd.v4f32(float 0.000000e+00, <4 x float> undef)
; FP16-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %fadd_v4f32_reassoc = call reassoc float @llvm.vector.reduce.fadd.v4f32(float 0.000000e+00, <4 x float> undef)
; FP16-NEXT: Cost Model: Found an estimated cost of 15 for instruction: %fadd_v8f32 = call fast float @llvm.vector.reduce.fadd.v8f32(float 0.000000e+00, <8 x float> undef)
Expand All @@ -100,12 +124,18 @@ define void @fast_fp_reductions() {
; FP16-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
; BF16-LABEL: 'fast_fp_reductions'
; BF16-NEXT: Cost Model: Found an estimated cost of 5 for instruction: %fadd_v2f16_fast = call fast half @llvm.vector.reduce.fadd.v2f16(half 0xH0000, <2 x half> undef)
; BF16-NEXT: Cost Model: Found an estimated cost of 5 for instruction: %fadd_v2f16_reassoc = call reassoc half @llvm.vector.reduce.fadd.v2f16(half 0xH0000, <2 x half> undef)
; BF16-NEXT: Cost Model: Found an estimated cost of 10 for instruction: %fadd_v4f16_fast = call fast half @llvm.vector.reduce.fadd.v4f16(half 0xH0000, <4 x half> undef)
; BF16-NEXT: Cost Model: Found an estimated cost of 10 for instruction: %fadd_v4f16_reassoc = call reassoc half @llvm.vector.reduce.fadd.v4f16(half 0xH0000, <4 x half> undef)
; BF16-NEXT: Cost Model: Found an estimated cost of 30 for instruction: %fadd_v8f16 = call fast half @llvm.vector.reduce.fadd.v8f16(half 0xH0000, <8 x half> undef)
; BF16-NEXT: Cost Model: Found an estimated cost of 30 for instruction: %fadd_v8f16_reassoc = call reassoc half @llvm.vector.reduce.fadd.v8f16(half 0xH0000, <8 x half> undef)
; BF16-NEXT: Cost Model: Found an estimated cost of 48 for instruction: %fadd_v16f16 = call fast half @llvm.vector.reduce.fadd.v16f16(half 0xH0000, <16 x half> undef)
; BF16-NEXT: Cost Model: Found an estimated cost of 48 for instruction: %fadd_v16f16_reassoc = call reassoc half @llvm.vector.reduce.fadd.v16f16(half 0xH0000, <16 x half> undef)
; BF16-NEXT: Cost Model: Found an estimated cost of 38 for instruction: %fadd_v11f16 = call fast half @llvm.vector.reduce.fadd.v11f16(half 0xH0000, <11 x half> undef)
; BF16-NEXT: Cost Model: Found an estimated cost of 38 for instruction: %fadd_v13f16_reassoc = call reassoc half @llvm.vector.reduce.fadd.v13f16(half 0xH0000, <13 x half> undef)
; BF16-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %fadd_v2f32 = call fast float @llvm.vector.reduce.fadd.v2f32(float 0.000000e+00, <2 x float> undef)
; BF16-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %fadd_v2f32_reassoc = call reassoc float @llvm.vector.reduce.fadd.v2f32(float 0.000000e+00, <2 x float> undef)
; BF16-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %fadd_v4f32 = call fast float @llvm.vector.reduce.fadd.v4f32(float 0.000000e+00, <4 x float> undef)
; BF16-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %fadd_v4f32_reassoc = call reassoc float @llvm.vector.reduce.fadd.v4f32(float 0.000000e+00, <4 x float> undef)
; BF16-NEXT: Cost Model: Found an estimated cost of 15 for instruction: %fadd_v8f32 = call fast float @llvm.vector.reduce.fadd.v8f32(float 0.000000e+00, <8 x float> undef)
Expand All @@ -122,15 +152,24 @@ define void @fast_fp_reductions() {
; BF16-NEXT: Cost Model: Found an estimated cost of 12 for instruction: %fadd_v4f128 = call reassoc fp128 @llvm.vector.reduce.fadd.v4f128(fp128 undef, <4 x fp128> undef)
; BF16-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
%fadd_v2f16_fast = call fast half @llvm.vector.reduce.fadd.v2f16(half 0.0, <2 x half> undef)
%fadd_v2f16_reassoc = call reassoc half @llvm.vector.reduce.fadd.v2f16(half 0.0, <2 x half> undef)

%fadd_v4f16_fast = call fast half @llvm.vector.reduce.fadd.v4f16(half 0.0, <4 x half> undef)
%fadd_v4f16_reassoc = call reassoc half @llvm.vector.reduce.fadd.v4f16(half 0.0, <4 x half> undef)

%fadd_v8f16 = call fast half @llvm.vector.reduce.fadd.v8f16(half 0.0, <8 x half> undef)
%fadd_v8f16_reassoc = call reassoc half @llvm.vector.reduce.fadd.v8f16(half 0.0, <8 x half> undef)

%fadd_v16f16 = call fast half @llvm.vector.reduce.fadd.v16f16(half 0.0, <16 x half> undef)
%fadd_v16f16_reassoc = call reassoc half @llvm.vector.reduce.fadd.v16f16(half 0.0, <16 x half> undef)

%fadd_v11f16 = call fast half @llvm.vector.reduce.fadd.v11f16(half 0.0, <11 x half> undef)
%fadd_v13f16_reassoc = call reassoc half @llvm.vector.reduce.fadd.v13f16(half 0.0, <13 x half> undef)

%fadd_v2f32 = call fast float @llvm.vector.reduce.fadd.v2f32(float 0.0, <2 x float> undef)
%fadd_v2f32_reassoc = call reassoc float @llvm.vector.reduce.fadd.v2f32(float 0.0, <2 x float> undef)

%fadd_v4f32 = call fast float @llvm.vector.reduce.fadd.v4f32(float 0.0, <4 x float> undef)
%fadd_v4f32_reassoc = call reassoc float @llvm.vector.reduce.fadd.v4f32(float 0.0, <4 x float> undef)

Expand Down Expand Up @@ -158,11 +197,14 @@ define void @fast_fp_reductions() {
declare bfloat @llvm.vector.reduce.fadd.v4f8(bfloat, <4 x bfloat>)
declare fp128 @llvm.vector.reduce.fadd.v4f128(fp128, <4 x fp128>)

declare half @llvm.vector.reduce.fadd.v2f16(half, <2 x half>)
declare half @llvm.vector.reduce.fadd.v4f16(half, <4 x half>)
declare half @llvm.vector.reduce.fadd.v8f16(half, <8 x half>)
declare half @llvm.vector.reduce.fadd.v16f16(half, <16 x half>)
declare half @llvm.vector.reduce.fadd.v11f16(half, <11 x half>)
declare half @llvm.vector.reduce.fadd.v13f16(half, <13 x half>)

declare float @llvm.vector.reduce.fadd.v2f32(float, <2 x float>)
declare float @llvm.vector.reduce.fadd.v4f32(float, <4 x float>)
declare float @llvm.vector.reduce.fadd.v8f32(float, <8 x float>)
declare float @llvm.vector.reduce.fadd.v13f32(float, <13 x float>)
Expand Down
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