[llvm] 432eff2 - [CostModel][X86] Add 512-bit bswap costs
Simon Pilgrim via llvm-commits
llvm-commits at lists.llvm.org
Sun Jun 6 14:38:38 PDT 2021
Author: Simon Pilgrim
Date: 2021-06-06T22:36:34+01:00
New Revision: 432eff22ab53820d1c74ad5f7b034a2db950b9fd
URL: https://github.com/llvm/llvm-project/commit/432eff22ab53820d1c74ad5f7b034a2db950b9fd
DIFF: https://github.com/llvm/llvm-project/commit/432eff22ab53820d1c74ad5f7b034a2db950b9fd.diff
LOG: [CostModel][X86] Add 512-bit bswap costs
Added:
Modified:
llvm/lib/Target/X86/X86TargetTransformInfo.cpp
llvm/test/Analysis/CostModel/X86/bswap-vec.ll
Removed:
################################################################################
diff --git a/llvm/lib/Target/X86/X86TargetTransformInfo.cpp b/llvm/lib/Target/X86/X86TargetTransformInfo.cpp
index c212129c051a..4cc50a81000f 100644
--- a/llvm/lib/Target/X86/X86TargetTransformInfo.cpp
+++ b/llvm/lib/Target/X86/X86TargetTransformInfo.cpp
@@ -2448,6 +2448,9 @@ X86TTIImpl::getTypeBasedIntrinsicInstrCost(const IntrinsicCostAttributes &ICA,
{ ISD::BITREVERSE, MVT::v16i32, 5 },
{ ISD::BITREVERSE, MVT::v32i16, 5 },
{ ISD::BITREVERSE, MVT::v64i8, 5 },
+ { ISD::BSWAP, MVT::v8i64, 1 },
+ { ISD::BSWAP, MVT::v16i32, 1 },
+ { ISD::BSWAP, MVT::v32i16, 1 },
{ ISD::CTLZ, MVT::v8i64, 23 },
{ ISD::CTLZ, MVT::v16i32, 22 },
{ ISD::CTLZ, MVT::v32i16, 18 },
@@ -2488,6 +2491,9 @@ X86TTIImpl::getTypeBasedIntrinsicInstrCost(const IntrinsicCostAttributes &ICA,
{ ISD::BITREVERSE, MVT::v16i32, 24 },
{ ISD::BITREVERSE, MVT::v32i16, 10 },
{ ISD::BITREVERSE, MVT::v64i8, 10 },
+ { ISD::BSWAP, MVT::v8i64, 4 },
+ { ISD::BSWAP, MVT::v16i32, 4 },
+ { ISD::BSWAP, MVT::v32i16, 4 },
{ ISD::CTLZ, MVT::v8i64, 29 },
{ ISD::CTLZ, MVT::v16i32, 35 },
{ ISD::CTLZ, MVT::v32i16, 28 },
diff --git a/llvm/test/Analysis/CostModel/X86/bswap-vec.ll b/llvm/test/Analysis/CostModel/X86/bswap-vec.ll
index fbf6d386df48..4ed262505515 100644
--- a/llvm/test/Analysis/CostModel/X86/bswap-vec.ll
+++ b/llvm/test/Analysis/CostModel/X86/bswap-vec.ll
@@ -5,8 +5,8 @@
; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -cost-model -analyze -mattr=+avx2 | FileCheck %s -check-prefixes=AVX,AVX2
; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -cost-model -analyze -mattr=+xop,+avx | FileCheck %s -check-prefixes=AVX,AVX1
; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -cost-model -analyze -mattr=+xop,+avx2 | FileCheck %s -check-prefixes=AVX,AVX2
-; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -cost-model -analyze -mattr=+avx512f | FileCheck %s -check-prefixes=AVX,AVX512
-; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -cost-model -analyze -mattr=+avx512bw | FileCheck %s -check-prefixes=AVX,AVX512
+; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -cost-model -analyze -mattr=+avx512f | FileCheck %s -check-prefixes=AVX,AVX512,AVX512F
+; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -cost-model -analyze -mattr=+avx512bw | FileCheck %s -check-prefixes=AVX,AVX512,AVX512BW
; Verify the cost of vector bswap instructions.
@@ -81,9 +81,13 @@ define <8 x i64> @var_bswap_v8i64(<8 x i64> %a) {
; AVX2-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %bswap = call <8 x i64> @llvm.bswap.v8i64(<8 x i64> %a)
; AVX2-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <8 x i64> %bswap
;
-; AVX512-LABEL: 'var_bswap_v8i64'
-; AVX512-NEXT: Cost Model: Found an estimated cost of 34 for instruction: %bswap = call <8 x i64> @llvm.bswap.v8i64(<8 x i64> %a)
-; AVX512-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <8 x i64> %bswap
+; AVX512F-LABEL: 'var_bswap_v8i64'
+; AVX512F-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %bswap = call <8 x i64> @llvm.bswap.v8i64(<8 x i64> %a)
+; AVX512F-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <8 x i64> %bswap
+;
+; AVX512BW-LABEL: 'var_bswap_v8i64'
+; AVX512BW-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call <8 x i64> @llvm.bswap.v8i64(<8 x i64> %a)
+; AVX512BW-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <8 x i64> %bswap
;
%bswap = call <8 x i64> @llvm.bswap.v8i64(<8 x i64> %a)
ret <8 x i64> %bswap
@@ -148,9 +152,13 @@ define <16 x i32> @var_bswap_v16i32(<16 x i32> %a) {
; AVX2-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %bswap = call <16 x i32> @llvm.bswap.v16i32(<16 x i32> %a)
; AVX2-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <16 x i32> %bswap
;
-; AVX512-LABEL: 'var_bswap_v16i32'
-; AVX512-NEXT: Cost Model: Found an estimated cost of 64 for instruction: %bswap = call <16 x i32> @llvm.bswap.v16i32(<16 x i32> %a)
-; AVX512-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <16 x i32> %bswap
+; AVX512F-LABEL: 'var_bswap_v16i32'
+; AVX512F-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %bswap = call <16 x i32> @llvm.bswap.v16i32(<16 x i32> %a)
+; AVX512F-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <16 x i32> %bswap
+;
+; AVX512BW-LABEL: 'var_bswap_v16i32'
+; AVX512BW-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call <16 x i32> @llvm.bswap.v16i32(<16 x i32> %a)
+; AVX512BW-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <16 x i32> %bswap
;
%bswap = call <16 x i32> @llvm.bswap.v16i32(<16 x i32> %a)
ret <16 x i32> %bswap
@@ -215,9 +223,13 @@ define <32 x i16> @var_bswap_v32i16(<32 x i16> %a) {
; AVX2-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %bswap = call <32 x i16> @llvm.bswap.v32i16(<32 x i16> %a)
; AVX2-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <32 x i16> %bswap
;
-; AVX512-LABEL: 'var_bswap_v32i16'
-; AVX512-NEXT: Cost Model: Found an estimated cost of 124 for instruction: %bswap = call <32 x i16> @llvm.bswap.v32i16(<32 x i16> %a)
-; AVX512-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <32 x i16> %bswap
+; AVX512F-LABEL: 'var_bswap_v32i16'
+; AVX512F-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %bswap = call <32 x i16> @llvm.bswap.v32i16(<32 x i16> %a)
+; AVX512F-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <32 x i16> %bswap
+;
+; AVX512BW-LABEL: 'var_bswap_v32i16'
+; AVX512BW-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call <32 x i16> @llvm.bswap.v32i16(<32 x i16> %a)
+; AVX512BW-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <32 x i16> %bswap
;
%bswap = call <32 x i16> @llvm.bswap.v32i16(<32 x i16> %a)
ret <32 x i16> %bswap
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