[PATCH] D111012: [X86][Costmodel] Load/store i8 Stride=6 VF=16 interleaving costs

Roman Lebedev via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Sun Oct 3 13:43:20 PDT 2021


This revision was automatically updated to reflect the committed changes.
Closed by commit rGbd5ba437fd8f: [X86][Costmodel] Load/store i8 Stride=6 VF=16 interleaving costs (authored by lebedev.ri).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D111012/new/

https://reviews.llvm.org/D111012

Files:
  llvm/lib/Target/X86/X86TargetTransformInfo.cpp
  llvm/test/Analysis/CostModel/X86/interleaved-load-i8-stride-6.ll
  llvm/test/Analysis/CostModel/X86/interleaved-store-i8-stride-6.ll


Index: llvm/test/Analysis/CostModel/X86/interleaved-store-i8-stride-6.ll
===================================================================
--- llvm/test/Analysis/CostModel/X86/interleaved-store-i8-stride-6.ll
+++ llvm/test/Analysis/CostModel/X86/interleaved-store-i8-stride-6.ll
@@ -29,7 +29,7 @@
 ; AVX2: LV: Found an estimated cost of 10 for VF 2 For instruction:   store i8 %v5, i8* %out5, align 1
 ; AVX2: LV: Found an estimated cost of 12 for VF 4 For instruction:   store i8 %v5, i8* %out5, align 1
 ; AVX2: LV: Found an estimated cost of 18 for VF 8 For instruction:   store i8 %v5, i8* %out5, align 1
-; AVX2: LV: Found an estimated cost of 201 for VF 16 For instruction:   store i8 %v5, i8* %out5, align 1
+; AVX2: LV: Found an estimated cost of 30 for VF 16 For instruction:   store i8 %v5, i8* %out5, align 1
 ; AVX2: LV: Found an estimated cost of 498 for VF 32 For instruction:   store i8 %v5, i8* %out5, align 1
 ;
 ; AVX512: LV: Found an estimated cost of 1 for VF 1 For instruction:   store i8 %v5, i8* %out5, align 1
Index: llvm/test/Analysis/CostModel/X86/interleaved-load-i8-stride-6.ll
===================================================================
--- llvm/test/Analysis/CostModel/X86/interleaved-load-i8-stride-6.ll
+++ llvm/test/Analysis/CostModel/X86/interleaved-load-i8-stride-6.ll
@@ -29,7 +29,7 @@
 ; AVX2: LV: Found an estimated cost of 9 for VF 2 For instruction:   %v0 = load i8, i8* %in0, align 1
 ; AVX2: LV: Found an estimated cost of 17 for VF 4 For instruction:   %v0 = load i8, i8* %in0, align 1
 ; AVX2: LV: Found an estimated cost of 20 for VF 8 For instruction:   %v0 = load i8, i8* %in0, align 1
-; AVX2: LV: Found an estimated cost of 243 for VF 16 For instruction:   %v0 = load i8, i8* %in0, align 1
+; AVX2: LV: Found an estimated cost of 46 for VF 16 For instruction:   %v0 = load i8, i8* %in0, align 1
 ; AVX2: LV: Found an estimated cost of 498 for VF 32 For instruction:   %v0 = load i8, i8* %in0, align 1
 ;
 ; AVX512: LV: Found an estimated cost of 1 for VF 1 For instruction:   %v0 = load i8, i8* %in0, align 1
Index: llvm/lib/Target/X86/X86TargetTransformInfo.cpp
===================================================================
--- llvm/lib/Target/X86/X86TargetTransformInfo.cpp
+++ llvm/lib/Target/X86/X86TargetTransformInfo.cpp
@@ -5117,6 +5117,7 @@
       {6, MVT::v2i8, 6}, // (load 12i8 and) deinterleave into 6 x 2i8
       {6, MVT::v4i8, 14}, // (load 24i8 and) deinterleave into 6 x 4i8
       {6, MVT::v8i8, 18}, // (load 48i8 and) deinterleave into 6 x 8i8
+      {6, MVT::v16i8, 43}, // (load 96i8 and) deinterleave into 6 x 16i8
 
       {6, MVT::v2i16, 13}, // (load 12i16 and) deinterleave into 6 x 2i16
       {6, MVT::v4i16, 9}, // (load 24i16 and) deinterleave into 6 x 4i16
@@ -5171,6 +5172,7 @@
       {6, MVT::v2i8, 7},  // interleave 6 x 2i8 into 12i8 (and store)
       {6, MVT::v4i8, 9},  // interleave 6 x 4i8 into 24i8 (and store)
       {6, MVT::v8i8, 16},  // interleave 6 x 8i8 into 48i8 (and store)
+      {6, MVT::v16i8, 27},  // interleave 6 x 16i8 into 96i8 (and store)
 
       {6, MVT::v2i16, 10},  // interleave 6 x 2i16 into 12i16 (and store)
       {6, MVT::v4i16, 15},  // interleave 6 x 4i16 into 24i16 (and store)


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