[PATCH] D110536: [X86][Costmodel] Load/store i16 Stride=4 VF=2 interleaving costs

[Roman Lebedev via Phabricator via llvm-commits]

This revision was landed with ongoing or failed builds.
This revision was automatically updated to reflect the committed changes.
Closed by commit rG45caac91c4e0: [X86][Costmodel] Load/store i16 Stride=4 VF=2 interleaving costs (authored by lebedev.ri).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D110536/new/

https://reviews.llvm.org/D110536

Files:
  llvm/lib/Target/X86/X86TargetTransformInfo.cpp
  llvm/test/Analysis/CostModel/X86/interleaved-load-i16-stride-4.ll
  llvm/test/Analysis/CostModel/X86/interleaved-store-i16-stride-4.ll


Index: llvm/test/Analysis/CostModel/X86/interleaved-store-i16-stride-4.ll
===================================================================
--- llvm/test/Analysis/CostModel/X86/interleaved-store-i16-stride-4.ll
+++ llvm/test/Analysis/CostModel/X86/interleaved-store-i16-stride-4.ll
@@ -9,7 +9,7 @@
 
 ; CHECK: LV: Checking a loop in "test"
 ; CHECK: LV: Found an estimated cost of 1 for VF 1 For instruction:   store i16 %v3, i16* %out3, align 2
-; CHECK: LV: Found an estimated cost of 17 for VF 2 For instruction:   store i16 %v3, i16* %out3, align 2
+; CHECK: LV: Found an estimated cost of 3 for VF 2 For instruction:   store i16 %v3, i16* %out3, align 2
 ; CHECK: LV: Found an estimated cost of 49 for VF 4 For instruction:   store i16 %v3, i16* %out3, align 2
 ; CHECK: LV: Found an estimated cost of 98 for VF 8 For instruction:   store i16 %v3, i16* %out3, align 2
 ; CHECK: LV: Found an estimated cost of 228 for VF 16 For instruction:   store i16 %v3, i16* %out3, align 2
Index: llvm/test/Analysis/CostModel/X86/interleaved-load-i16-stride-4.ll
===================================================================
--- llvm/test/Analysis/CostModel/X86/interleaved-load-i16-stride-4.ll
+++ llvm/test/Analysis/CostModel/X86/interleaved-load-i16-stride-4.ll
@@ -9,7 +9,7 @@
 
 ; CHECK: LV: Checking a loop in "test"
 ; CHECK: LV: Found an estimated cost of 1 for VF 1 For instruction:   %v0 = load i16, i16* %in0, align 2
-; CHECK: LV: Found an estimated cost of 17 for VF 2 For instruction:   %v0 = load i16, i16* %in0, align 2
+; CHECK: LV: Found an estimated cost of 7 for VF 2 For instruction:   %v0 = load i16, i16* %in0, align 2
 ; CHECK: LV: Found an estimated cost of 41 for VF 4 For instruction:   %v0 = load i16, i16* %in0, align 2
 ; CHECK: LV: Found an estimated cost of 82 for VF 8 For instruction:   %v0 = load i16, i16* %in0, align 2
 ; CHECK: LV: Found an estimated cost of 228 for VF 16 For instruction:   %v0 = load i16, i16* %in0, align 2
Index: llvm/lib/Target/X86/X86TargetTransformInfo.cpp
===================================================================
--- llvm/lib/Target/X86/X86TargetTransformInfo.cpp
+++ llvm/lib/Target/X86/X86TargetTransformInfo.cpp
@@ -5085,6 +5085,8 @@
       {4, MVT::v16i8, 39}, // (load 64i8 and) deinterleave into 4 x 16i8
       {4, MVT::v32i8, 80}, // (load 128i8 and) deinterleave into 4 x 32i8
 
+      {4, MVT::v2i16, 6}, // (load 8i16 and) deinterleave into 4 x 2i16
+
       {8, MVT::v8i32, 40} // (load 64i32 and) deinterleave into 8 x 8i32
   };
 
@@ -5107,7 +5109,9 @@
       {4, MVT::v4i8, 9},   // interleave 4 x 4i8 into 16i8 (and store)
       {4, MVT::v8i8, 10},  // interleave 4 x 8i8 into 32i8 (and store)
       {4, MVT::v16i8, 10}, // interleave 4 x 16i8 into 64i8 (and store)
-      {4, MVT::v32i8, 12}  // interleave 4 x 32i8 into 128i8 (and store)
+      {4, MVT::v32i8, 12}, // interleave 4 x 32i8 into 128i8 (and store)
+
+      {4, MVT::v2i16, 2},  // interleave 4 x 2i16 into 8i16 (and store)
   };
 
   if (Opcode == Instruction::Load) {


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