[llvm] r364557 - Recommit [PowerPC] Update P9 vector costs for insert/extract element
Roland Froese via llvm-commits
llvm-commits at lists.llvm.org
Thu Jun 27 09:20:24 PDT 2019
Author: froese
Date: Thu Jun 27 09:20:24 2019
New Revision: 364557
URL: http://llvm.org/viewvc/llvm-project?rev=364557&view=rev
Log:
Recommit [PowerPC] Update P9 vector costs for insert/extract element
Recommit patch D60160 after regression fix patch D63463.
Modified:
llvm/trunk/lib/Target/PowerPC/PPCTargetTransformInfo.cpp
llvm/trunk/test/Analysis/CostModel/PowerPC/insert_extract.ll
Modified: llvm/trunk/lib/Target/PowerPC/PPCTargetTransformInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/PowerPC/PPCTargetTransformInfo.cpp?rev=364557&r1=364556&r2=364557&view=diff
==============================================================================
--- llvm/trunk/lib/Target/PowerPC/PPCTargetTransformInfo.cpp (original)
+++ llvm/trunk/lib/Target/PowerPC/PPCTargetTransformInfo.cpp Thu Jun 27 09:20:24 2019
@@ -752,6 +752,35 @@ int PPCTTIImpl::getVectorInstrCost(unsig
return 0;
return Cost;
+
+ } else if (Val->getScalarType()->isIntegerTy() && Index != -1U) {
+ if (ST->hasP9Altivec()) {
+ if (ISD == ISD::INSERT_VECTOR_ELT)
+ // A move-to VSR and a permute/insert. Assume vector operation cost
+ // for both (cost will be 2x on P9).
+ return vectorCostAdjustment(2, Opcode, Val, nullptr);
+
+ // It's an extract. Maybe we can do a cheap move-from VSR.
+ unsigned EltSize = Val->getScalarSizeInBits();
+ if (EltSize == 64) {
+ unsigned MfvsrdIndex = ST->isLittleEndian() ? 1 : 0;
+ if (Index == MfvsrdIndex)
+ return 1;
+ } else if (EltSize == 32) {
+ unsigned MfvsrwzIndex = ST->isLittleEndian() ? 2 : 1;
+ if (Index == MfvsrwzIndex)
+ return 1;
+ }
+
+ // We need a vector extract (or mfvsrld). Assume vector operation cost.
+ // The cost of the load constant for a vector extract is disregarded
+ // (invariant, easily schedulable).
+ return vectorCostAdjustment(1, Opcode, Val, nullptr);
+
+ } else if (ST->hasDirectMove())
+ // Assume permute has standard cost.
+ // Assume move-to/move-from VSR have 2x standard cost.
+ return 3;
}
// Estimated cost of a load-hit-store delay. This was obtained
Modified: llvm/trunk/test/Analysis/CostModel/PowerPC/insert_extract.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Analysis/CostModel/PowerPC/insert_extract.ll?rev=364557&r1=364556&r2=364557&view=diff
==============================================================================
--- llvm/trunk/test/Analysis/CostModel/PowerPC/insert_extract.ll (original)
+++ llvm/trunk/test/Analysis/CostModel/PowerPC/insert_extract.ll Thu Jun 27 09:20:24 2019
@@ -14,15 +14,15 @@ define i32 @insert(i32 %arg) {
; CHECK-P7-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
;
; CHECK-P8LE-LABEL: 'insert'
-; CHECK-P8LE-NEXT: Cost Model: Found an estimated cost of 10 for instruction: %x = insertelement <4 x i32> undef, i32 %arg, i32 0
+; CHECK-P8LE-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %x = insertelement <4 x i32> undef, i32 %arg, i32 0
; CHECK-P8LE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
;
; CHECK-P9BE-LABEL: 'insert'
-; CHECK-P9BE-NEXT: Cost Model: Found an estimated cost of 11 for instruction: %x = insertelement <4 x i32> undef, i32 %arg, i32 0
+; CHECK-P9BE-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %x = insertelement <4 x i32> undef, i32 %arg, i32 0
; CHECK-P9BE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
;
; CHECK-P9LE-LABEL: 'insert'
-; CHECK-P9LE-NEXT: Cost Model: Found an estimated cost of 11 for instruction: %x = insertelement <4 x i32> undef, i32 %arg, i32 0
+; CHECK-P9LE-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %x = insertelement <4 x i32> undef, i32 %arg, i32 0
; CHECK-P9LE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
;
%x = insertelement <4 x i32> undef, i32 %arg, i32 0
@@ -40,11 +40,11 @@ define i32 @extract(<4 x i32> %arg) {
; CHECK-P8LE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i32 %x
;
; CHECK-P9BE-LABEL: 'extract'
-; CHECK-P9BE-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %x = extractelement <4 x i32> %arg, i32 0
+; CHECK-P9BE-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %x = extractelement <4 x i32> %arg, i32 0
; CHECK-P9BE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i32 %x
;
; CHECK-P9LE-LABEL: 'extract'
-; CHECK-P9LE-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %x = extractelement <4 x i32> %arg, i32 0
+; CHECK-P9LE-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %x = extractelement <4 x i32> %arg, i32 0
; CHECK-P9LE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i32 %x
;
%x = extractelement <4 x i32> %arg, i32 0
@@ -83,15 +83,15 @@ define void @test4xi32(<4 x i32> %v1, i3
; CHECK-P7-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
; CHECK-P8LE-LABEL: 'test4xi32'
-; CHECK-P8LE-NEXT: Cost Model: Found an estimated cost of 10 for instruction: %v2 = insertelement <4 x i32> %v1, i32 %x1, i32 2
+; CHECK-P8LE-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %v2 = insertelement <4 x i32> %v1, i32 %x1, i32 2
; CHECK-P8LE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
; CHECK-P9BE-LABEL: 'test4xi32'
-; CHECK-P9BE-NEXT: Cost Model: Found an estimated cost of 11 for instruction: %v2 = insertelement <4 x i32> %v1, i32 %x1, i32 2
+; CHECK-P9BE-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %v2 = insertelement <4 x i32> %v1, i32 %x1, i32 2
; CHECK-P9BE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
; CHECK-P9LE-LABEL: 'test4xi32'
-; CHECK-P9LE-NEXT: Cost Model: Found an estimated cost of 11 for instruction: %v2 = insertelement <4 x i32> %v1, i32 %x1, i32 2
+; CHECK-P9LE-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %v2 = insertelement <4 x i32> %v1, i32 %x1, i32 2
; CHECK-P9LE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
%v2 = insertelement <4 x i32> %v1, i32 %x1, i32 2
@@ -114,17 +114,17 @@ define void @vexti32(<4 x i32> %p1) {
; CHECK-P8LE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
; CHECK-P9BE-LABEL: 'vexti32'
-; CHECK-P9BE-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %i1 = extractelement <4 x i32> %p1, i32 0
-; CHECK-P9BE-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %i2 = extractelement <4 x i32> %p1, i32 1
-; CHECK-P9BE-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %i3 = extractelement <4 x i32> %p1, i32 2
-; CHECK-P9BE-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %i4 = extractelement <4 x i32> %p1, i32 3
+; CHECK-P9BE-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %i1 = extractelement <4 x i32> %p1, i32 0
+; CHECK-P9BE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %i2 = extractelement <4 x i32> %p1, i32 1
+; CHECK-P9BE-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %i3 = extractelement <4 x i32> %p1, i32 2
+; CHECK-P9BE-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %i4 = extractelement <4 x i32> %p1, i32 3
; CHECK-P9BE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
; CHECK-P9LE-LABEL: 'vexti32'
-; CHECK-P9LE-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %i1 = extractelement <4 x i32> %p1, i32 0
-; CHECK-P9LE-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %i2 = extractelement <4 x i32> %p1, i32 1
-; CHECK-P9LE-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %i3 = extractelement <4 x i32> %p1, i32 2
-; CHECK-P9LE-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %i4 = extractelement <4 x i32> %p1, i32 3
+; CHECK-P9LE-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %i1 = extractelement <4 x i32> %p1, i32 0
+; CHECK-P9LE-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %i2 = extractelement <4 x i32> %p1, i32 1
+; CHECK-P9LE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %i3 = extractelement <4 x i32> %p1, i32 2
+; CHECK-P9LE-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %i4 = extractelement <4 x i32> %p1, i32 3
; CHECK-P9LE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
%i1 = extractelement <4 x i32> %p1, i32 0
@@ -146,13 +146,13 @@ define void @vexti64(<2 x i64> %p1) {
; CHECK-P8LE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
; CHECK-P9BE-LABEL: 'vexti64'
-; CHECK-P9BE-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %i1 = extractelement <2 x i64> %p1, i32 0
-; CHECK-P9BE-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %i2 = extractelement <2 x i64> %p1, i32 1
+; CHECK-P9BE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %i1 = extractelement <2 x i64> %p1, i32 0
+; CHECK-P9BE-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %i2 = extractelement <2 x i64> %p1, i32 1
; CHECK-P9BE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
; CHECK-P9LE-LABEL: 'vexti64'
-; CHECK-P9LE-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %i1 = extractelement <2 x i64> %p1, i32 0
-; CHECK-P9LE-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %i2 = extractelement <2 x i64> %p1, i32 1
+; CHECK-P9LE-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %i1 = extractelement <2 x i64> %p1, i32 0
+; CHECK-P9LE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %i2 = extractelement <2 x i64> %p1, i32 1
; CHECK-P9LE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
%i1 = extractelement <2 x i64> %p1, i32 0
@@ -172,13 +172,13 @@ define void @vext(<8 x i16> %p1, <16 x i
; CHECK-P8LE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
; CHECK-P9BE-LABEL: 'vext'
-; CHECK-P9BE-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %i1 = extractelement <8 x i16> %p1, i32 0
-; CHECK-P9BE-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %i2 = extractelement <16 x i8> %p2, i32 0
+; CHECK-P9BE-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %i1 = extractelement <8 x i16> %p1, i32 0
+; CHECK-P9BE-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %i2 = extractelement <16 x i8> %p2, i32 0
; CHECK-P9BE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
; CHECK-P9LE-LABEL: 'vext'
-; CHECK-P9LE-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %i1 = extractelement <8 x i16> %p1, i32 0
-; CHECK-P9LE-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %i2 = extractelement <16 x i8> %p2, i32 0
+; CHECK-P9LE-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %i1 = extractelement <8 x i16> %p1, i32 0
+; CHECK-P9LE-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %i2 = extractelement <16 x i8> %p2, i32 0
; CHECK-P9LE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
%i1 = extractelement <8 x i16> %p1, i32 0
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