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[llvm][AArch64] Improve the cost model for i128 div's #107306

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Sep 5, 2024
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[llvm][AArch64] Improve the cost model for i128 div's #107306

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7bf4600
[llvm][AArch64] Pre-commit tests for [us]div i128 cost model improvem…
jroelofs Sep 4, 2024
750ad33
[llvm][AArch64] Improve the cost model for i128 div's
jroelofs Sep 4, 2024
5160fc4
fixup! [llvm][AArch64] Improve the cost model for i128 div's
jroelofs Sep 4, 2024
914e601
clang-format
jroelofs Sep 4, 2024
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review feedback: use getCallInstrCost's 10, instead of actual timings
jroelofs Sep 5, 2024
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11 changes: 11 additions & 0 deletions llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -3222,6 +3222,12 @@ InstructionCost AArch64TTIImpl::getArithmeticInstrCost(
Op1Info.getNoProps(), Op2Info.getNoProps());
return Cost;
}

// sdiv i128 are lowered as a libcall, which was microbenchmarked on an
// Apple M2 Max as taking around 16 cycles.
if (TLI->getValueType(DL, Ty) == MVT::i128)
return 16;

[[fallthrough]];
case ISD::UDIV: {
if (Op2Info.isConstant() && Op2Info.isUniform()) {
Expand All @@ -3240,6 +3246,11 @@ InstructionCost AArch64TTIImpl::getArithmeticInstrCost(
}
}

// udiv i128 are lowered as a libcall, which was microbenchmarked on an
// Apple M2 Max as taking around 14 cycles.
if (TLI->getValueType(DL, Ty) == MVT::i128)
return 14;

InstructionCost Cost = BaseT::getArithmeticInstrCost(
Opcode, Ty, CostKind, Op1Info, Op2Info);
if (Ty->isVectorTy()) {
Expand Down
43 changes: 43 additions & 0 deletions llvm/test/Analysis/CostModel/AArch64/div.ll
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@ target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"

define i32 @sdiv() {
; CHECK-LABEL: 'sdiv'
; CHECK-NEXT: Cost Model: Found an estimated cost of 16 for instruction: %I128 = sdiv i128 undef, undef
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %I64 = sdiv i64 undef, undef
; CHECK-NEXT: Cost Model: Found an estimated cost of 28 for instruction: %V2i64 = sdiv <2 x i64> undef, undef
; CHECK-NEXT: Cost Model: Found an estimated cost of 56 for instruction: %V4i64 = sdiv <4 x i64> undef, undef
Expand All @@ -23,6 +24,8 @@ define i32 @sdiv() {
; CHECK-NEXT: Cost Model: Found an estimated cost of 672 for instruction: %V64i8 = sdiv <64 x i8> undef, undef
; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
;
%I128 = sdiv i128 undef, undef

%I64 = sdiv i64 undef, undef
%V2i64 = sdiv <2 x i64> undef, undef
%V4i64 = sdiv <4 x i64> undef, undef
Expand All @@ -48,6 +51,7 @@ define i32 @sdiv() {

define i32 @udiv() {
; CHECK-LABEL: 'udiv'
; CHECK-NEXT: Cost Model: Found an estimated cost of 14 for instruction: %I128 = udiv i128 undef, undef
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %I64 = udiv i64 undef, undef
; CHECK-NEXT: Cost Model: Found an estimated cost of 28 for instruction: %V2i64 = udiv <2 x i64> undef, undef
; CHECK-NEXT: Cost Model: Found an estimated cost of 56 for instruction: %V4i64 = udiv <4 x i64> undef, undef
Expand All @@ -66,6 +70,8 @@ define i32 @udiv() {
; CHECK-NEXT: Cost Model: Found an estimated cost of 672 for instruction: %V64i8 = udiv <64 x i8> undef, undef
; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
;
%I128 = udiv i128 undef, undef

%I64 = udiv i64 undef, undef
%V2i64 = udiv <2 x i64> undef, undef
%V4i64 = udiv <4 x i64> undef, undef
Expand All @@ -91,6 +97,7 @@ define i32 @udiv() {

define i32 @sdiv_const() {
; CHECK-LABEL: 'sdiv_const'
; CHECK-NEXT: Cost Model: Found an estimated cost of 16 for instruction: %I128 = sdiv i128 undef, 7
; CHECK-NEXT: Cost Model: Found an estimated cost of 7 for instruction: %I64 = sdiv i64 undef, 7
; CHECK-NEXT: Cost Model: Found an estimated cost of 28 for instruction: %V2i64 = sdiv <2 x i64> undef, <i64 6, i64 7>
; CHECK-NEXT: Cost Model: Found an estimated cost of 56 for instruction: %V4i64 = sdiv <4 x i64> undef, <i64 4, i64 5, i64 6, i64 7>
Expand All @@ -109,6 +116,8 @@ define i32 @sdiv_const() {
; CHECK-NEXT: Cost Model: Found an estimated cost of 672 for instruction: %V64i8 = sdiv <64 x i8> undef, <i8 4, i8 5, i8 6, i8 7, i8 8, i8 9, i8 10, i8 11, i8 12, i8 13, i8 14, i8 15, i8 16, i8 17, i8 18, i8 19, i8 4, i8 5, i8 6, i8 7, i8 8, i8 9, i8 10, i8 11, i8 12, i8 13, i8 14, i8 15, i8 16, i8 17, i8 18, i8 19, i8 4, i8 5, i8 6, i8 7, i8 8, i8 9, i8 10, i8 11, i8 12, i8 13, i8 14, i8 15, i8 16, i8 17, i8 18, i8 19, i8 4, i8 5, i8 6, i8 7, i8 8, i8 9, i8 10, i8 11, i8 12, i8 13, i8 14, i8 15, i8 16, i8 17, i8 18, i8 19>
; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
;
%I128 = sdiv i128 undef, 7

%I64 = sdiv i64 undef, 7
%V2i64 = sdiv <2 x i64> undef, <i64 6, i64 7>
%V4i64 = sdiv <4 x i64> undef, <i64 4, i64 5, i64 6, i64 7>
Expand All @@ -134,6 +143,7 @@ define i32 @sdiv_const() {

define i32 @udiv_const() {
; CHECK-LABEL: 'udiv_const'
; CHECK-NEXT: Cost Model: Found an estimated cost of 14 for instruction: %I128 = udiv i128 undef, 7
; CHECK-NEXT: Cost Model: Found an estimated cost of 7 for instruction: %I64 = udiv i64 undef, 7
; CHECK-NEXT: Cost Model: Found an estimated cost of 28 for instruction: %V2i64 = udiv <2 x i64> undef, <i64 6, i64 7>
; CHECK-NEXT: Cost Model: Found an estimated cost of 56 for instruction: %V4i64 = udiv <4 x i64> undef, <i64 4, i64 5, i64 6, i64 7>
Expand All @@ -152,6 +162,9 @@ define i32 @udiv_const() {
; CHECK-NEXT: Cost Model: Found an estimated cost of 672 for instruction: %V64i8 = udiv <64 x i8> undef, <i8 4, i8 5, i8 6, i8 7, i8 8, i8 9, i8 10, i8 11, i8 12, i8 13, i8 14, i8 15, i8 16, i8 17, i8 18, i8 19, i8 4, i8 5, i8 6, i8 7, i8 8, i8 9, i8 10, i8 11, i8 12, i8 13, i8 14, i8 15, i8 16, i8 17, i8 18, i8 19, i8 4, i8 5, i8 6, i8 7, i8 8, i8 9, i8 10, i8 11, i8 12, i8 13, i8 14, i8 15, i8 16, i8 17, i8 18, i8 19, i8 4, i8 5, i8 6, i8 7, i8 8, i8 9, i8 10, i8 11, i8 12, i8 13, i8 14, i8 15, i8 16, i8 17, i8 18, i8 19>
; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
;

%I128 = udiv i128 undef, 7

%I64 = udiv i64 undef, 7
%V2i64 = udiv <2 x i64> undef, <i64 6, i64 7>
%V4i64 = udiv <4 x i64> undef, <i64 4, i64 5, i64 6, i64 7>
Expand All @@ -177,6 +190,7 @@ define i32 @udiv_const() {

define i32 @sdiv_uniformconst() {
; CHECK-LABEL: 'sdiv_uniformconst'
; CHECK-NEXT: Cost Model: Found an estimated cost of 16 for instruction: %I128 = sdiv i128 undef, 7
; CHECK-NEXT: Cost Model: Found an estimated cost of 7 for instruction: %I64 = sdiv i64 undef, 7
; CHECK-NEXT: Cost Model: Found an estimated cost of 10 for instruction: %V2i64 = sdiv <2 x i64> undef, <i64 7, i64 7>
; CHECK-NEXT: Cost Model: Found an estimated cost of 20 for instruction: %V4i64 = sdiv <4 x i64> undef, <i64 7, i64 7, i64 7, i64 7>
Expand All @@ -195,6 +209,8 @@ define i32 @sdiv_uniformconst() {
; CHECK-NEXT: Cost Model: Found an estimated cost of 320 for instruction: %V64i8 = sdiv <64 x i8> undef, <i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7>
; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
;
%I128 = sdiv i128 undef, 7

%I64 = sdiv i64 undef, 7
%V2i64 = sdiv <2 x i64> undef, <i64 7, i64 7>
%V4i64 = sdiv <4 x i64> undef, <i64 7, i64 7, i64 7, i64 7>
Expand All @@ -220,6 +236,7 @@ define i32 @sdiv_uniformconst() {

define i32 @udiv_uniformconst() {
; CHECK-LABEL: 'udiv_uniformconst'
; CHECK-NEXT: Cost Model: Found an estimated cost of 14 for instruction: %I128 = udiv i128 undef, 7
; CHECK-NEXT: Cost Model: Found an estimated cost of 7 for instruction: %I64 = udiv i64 undef, 7
; CHECK-NEXT: Cost Model: Found an estimated cost of 10 for instruction: %V2i64 = udiv <2 x i64> undef, <i64 7, i64 7>
; CHECK-NEXT: Cost Model: Found an estimated cost of 20 for instruction: %V4i64 = udiv <4 x i64> undef, <i64 7, i64 7, i64 7, i64 7>
Expand All @@ -238,6 +255,8 @@ define i32 @udiv_uniformconst() {
; CHECK-NEXT: Cost Model: Found an estimated cost of 320 for instruction: %V64i8 = udiv <64 x i8> undef, <i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7>
; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
;
%I128 = udiv i128 undef, 7

%I64 = udiv i64 undef, 7
%V2i64 = udiv <2 x i64> undef, <i64 7, i64 7>
%V4i64 = udiv <4 x i64> undef, <i64 7, i64 7, i64 7, i64 7>
Expand All @@ -263,6 +282,7 @@ define i32 @udiv_uniformconst() {

define i32 @sdiv_constpow2() {
; CHECK-LABEL: 'sdiv_constpow2'
; CHECK-NEXT: Cost Model: Found an estimated cost of 10 for instruction: %I128 = sdiv i128 undef, 16
; CHECK-NEXT: Cost Model: Found an estimated cost of 5 for instruction: %I64 = sdiv i64 undef, 16
; CHECK-NEXT: Cost Model: Found an estimated cost of 28 for instruction: %V2i64 = sdiv <2 x i64> undef, <i64 8, i64 16>
; CHECK-NEXT: Cost Model: Found an estimated cost of 56 for instruction: %V4i64 = sdiv <4 x i64> undef, <i64 2, i64 4, i64 8, i64 16>
Expand All @@ -281,6 +301,8 @@ define i32 @sdiv_constpow2() {
; CHECK-NEXT: Cost Model: Found an estimated cost of 672 for instruction: %V64i8 = sdiv <64 x i8> undef, <i8 2, i8 4, i8 8, i8 16, i8 2, i8 4, i8 8, i8 16, i8 2, i8 4, i8 8, i8 16, i8 2, i8 4, i8 8, i8 16, i8 2, i8 4, i8 8, i8 16, i8 2, i8 4, i8 8, i8 16, i8 2, i8 4, i8 8, i8 16, i8 2, i8 4, i8 8, i8 16, i8 2, i8 4, i8 8, i8 16, i8 2, i8 4, i8 8, i8 16, i8 2, i8 4, i8 8, i8 16, i8 2, i8 4, i8 8, i8 16, i8 2, i8 4, i8 8, i8 16, i8 2, i8 4, i8 8, i8 16, i8 2, i8 4, i8 8, i8 16, i8 2, i8 4, i8 8, i8 16>
; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
;
%I128 = sdiv i128 undef, 16

%I64 = sdiv i64 undef, 16
%V2i64 = sdiv <2 x i64> undef, <i64 8, i64 16>
%V4i64 = sdiv <4 x i64> undef, <i64 2, i64 4, i64 8, i64 16>
Expand All @@ -306,6 +328,7 @@ define i32 @sdiv_constpow2() {

define i32 @udiv_constpow2() {
; CHECK-LABEL: 'udiv_constpow2'
; CHECK-NEXT: Cost Model: Found an estimated cost of 14 for instruction: %I128 = udiv i128 undef, 16
; CHECK-NEXT: Cost Model: Found an estimated cost of 7 for instruction: %I64 = udiv i64 undef, 16
; CHECK-NEXT: Cost Model: Found an estimated cost of 28 for instruction: %V2i64 = udiv <2 x i64> undef, <i64 8, i64 16>
; CHECK-NEXT: Cost Model: Found an estimated cost of 56 for instruction: %V4i64 = udiv <4 x i64> undef, <i64 2, i64 4, i64 8, i64 16>
Expand All @@ -324,6 +347,8 @@ define i32 @udiv_constpow2() {
; CHECK-NEXT: Cost Model: Found an estimated cost of 672 for instruction: %V64i8 = udiv <64 x i8> undef, <i8 2, i8 4, i8 8, i8 16, i8 2, i8 4, i8 8, i8 16, i8 2, i8 4, i8 8, i8 16, i8 2, i8 4, i8 8, i8 16, i8 2, i8 4, i8 8, i8 16, i8 2, i8 4, i8 8, i8 16, i8 2, i8 4, i8 8, i8 16, i8 2, i8 4, i8 8, i8 16, i8 2, i8 4, i8 8, i8 16, i8 2, i8 4, i8 8, i8 16, i8 2, i8 4, i8 8, i8 16, i8 2, i8 4, i8 8, i8 16, i8 2, i8 4, i8 8, i8 16, i8 2, i8 4, i8 8, i8 16, i8 2, i8 4, i8 8, i8 16, i8 2, i8 4, i8 8, i8 16>
; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
;
%I128 = udiv i128 undef, 16

%I64 = udiv i64 undef, 16
%V2i64 = udiv <2 x i64> undef, <i64 8, i64 16>
%V4i64 = udiv <4 x i64> undef, <i64 2, i64 4, i64 8, i64 16>
Expand All @@ -349,6 +374,7 @@ define i32 @udiv_constpow2() {

define i32 @sdiv_uniformconstpow2() {
; CHECK-LABEL: 'sdiv_uniformconstpow2'
; CHECK-NEXT: Cost Model: Found an estimated cost of 10 for instruction: %I128 = sdiv i128 undef, 16
; CHECK-NEXT: Cost Model: Found an estimated cost of 5 for instruction: %I64 = sdiv i64 undef, 16
; CHECK-NEXT: Cost Model: Found an estimated cost of 15 for instruction: %V2i64 = sdiv <2 x i64> undef, <i64 16, i64 16>
; CHECK-NEXT: Cost Model: Found an estimated cost of 30 for instruction: %V4i64 = sdiv <4 x i64> undef, <i64 16, i64 16, i64 16, i64 16>
Expand All @@ -367,6 +393,8 @@ define i32 @sdiv_uniformconstpow2() {
; CHECK-NEXT: Cost Model: Found an estimated cost of 396 for instruction: %V64i8 = sdiv <64 x i8> undef, <i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16>
; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
;
%I128 = sdiv i128 undef, 16

%I64 = sdiv i64 undef, 16
%V2i64 = sdiv <2 x i64> undef, <i64 16, i64 16>
%V4i64 = sdiv <4 x i64> undef, <i64 16, i64 16, i64 16, i64 16>
Expand All @@ -392,6 +420,7 @@ define i32 @sdiv_uniformconstpow2() {

define i32 @udiv_uniformconstpow2() {
; CHECK-LABEL: 'udiv_uniformconstpow2'
; CHECK-NEXT: Cost Model: Found an estimated cost of 14 for instruction: %I128 = udiv i128 undef, 16
; CHECK-NEXT: Cost Model: Found an estimated cost of 7 for instruction: %I64 = udiv i64 undef, 16
; CHECK-NEXT: Cost Model: Found an estimated cost of 10 for instruction: %V2i64 = udiv <2 x i64> undef, <i64 16, i64 16>
; CHECK-NEXT: Cost Model: Found an estimated cost of 20 for instruction: %V4i64 = udiv <4 x i64> undef, <i64 16, i64 16, i64 16, i64 16>
Expand All @@ -410,6 +439,8 @@ define i32 @udiv_uniformconstpow2() {
; CHECK-NEXT: Cost Model: Found an estimated cost of 320 for instruction: %V64i8 = udiv <64 x i8> undef, <i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16, i8 16>
; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
;
%I128 = udiv i128 undef, 16

%I64 = udiv i64 undef, 16
%V2i64 = udiv <2 x i64> undef, <i64 16, i64 16>
%V4i64 = udiv <4 x i64> undef, <i64 16, i64 16, i64 16, i64 16>
Expand All @@ -435,6 +466,7 @@ define i32 @udiv_uniformconstpow2() {

define i32 @sdiv_constnegpow2() {
; CHECK-LABEL: 'sdiv_constnegpow2'
; CHECK-NEXT: Cost Model: Found an estimated cost of 16 for instruction: %I128 = sdiv i128 undef, -16
; CHECK-NEXT: Cost Model: Found an estimated cost of 7 for instruction: %I64 = sdiv i64 undef, -16
; CHECK-NEXT: Cost Model: Found an estimated cost of 28 for instruction: %V2i64 = sdiv <2 x i64> undef, <i64 -8, i64 -16>
; CHECK-NEXT: Cost Model: Found an estimated cost of 56 for instruction: %V4i64 = sdiv <4 x i64> undef, <i64 -2, i64 -4, i64 -8, i64 -16>
Expand All @@ -453,6 +485,8 @@ define i32 @sdiv_constnegpow2() {
; CHECK-NEXT: Cost Model: Found an estimated cost of 672 for instruction: %V64i8 = sdiv <64 x i8> undef, <i8 -2, i8 -4, i8 -8, i8 -16, i8 -2, i8 -4, i8 -8, i8 -16, i8 -2, i8 -4, i8 -8, i8 -16, i8 -2, i8 -4, i8 -8, i8 -16, i8 -2, i8 -4, i8 -8, i8 -16, i8 -2, i8 -4, i8 -8, i8 -16, i8 -2, i8 -4, i8 -8, i8 -16, i8 -2, i8 -4, i8 -8, i8 -16, i8 -2, i8 -4, i8 -8, i8 -16, i8 -2, i8 -4, i8 -8, i8 -16, i8 -2, i8 -4, i8 -8, i8 -16, i8 -2, i8 -4, i8 -8, i8 -16, i8 -2, i8 -4, i8 -8, i8 -16, i8 -2, i8 -4, i8 -8, i8 -16, i8 -2, i8 -4, i8 -8, i8 -16, i8 -2, i8 -4, i8 -8, i8 -16>
; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
;
%I128 = sdiv i128 undef, -16

%I64 = sdiv i64 undef, -16
%V2i64 = sdiv <2 x i64> undef, <i64 -8, i64 -16>
%V4i64 = sdiv <4 x i64> undef, <i64 -2, i64 -4, i64 -8, i64 -16>
Expand All @@ -478,6 +512,7 @@ define i32 @sdiv_constnegpow2() {

define i32 @udiv_constnegpow2() {
; CHECK-LABEL: 'udiv_constnegpow2'
; CHECK-NEXT: Cost Model: Found an estimated cost of 14 for instruction: %I128 = udiv i128 undef, -16
; CHECK-NEXT: Cost Model: Found an estimated cost of 7 for instruction: %I64 = udiv i64 undef, -16
; CHECK-NEXT: Cost Model: Found an estimated cost of 28 for instruction: %V2i64 = udiv <2 x i64> undef, <i64 -8, i64 -16>
; CHECK-NEXT: Cost Model: Found an estimated cost of 56 for instruction: %V4i64 = udiv <4 x i64> undef, <i64 -2, i64 -4, i64 -8, i64 -16>
Expand All @@ -496,6 +531,8 @@ define i32 @udiv_constnegpow2() {
; CHECK-NEXT: Cost Model: Found an estimated cost of 672 for instruction: %V64i8 = udiv <64 x i8> undef, <i8 -2, i8 -4, i8 -8, i8 -16, i8 -2, i8 -4, i8 -8, i8 -16, i8 -2, i8 -4, i8 -8, i8 -16, i8 -2, i8 -4, i8 -8, i8 -16, i8 -2, i8 -4, i8 -8, i8 -16, i8 -2, i8 -4, i8 -8, i8 -16, i8 -2, i8 -4, i8 -8, i8 -16, i8 -2, i8 -4, i8 -8, i8 -16, i8 -2, i8 -4, i8 -8, i8 -16, i8 -2, i8 -4, i8 -8, i8 -16, i8 -2, i8 -4, i8 -8, i8 -16, i8 -2, i8 -4, i8 -8, i8 -16, i8 -2, i8 -4, i8 -8, i8 -16, i8 -2, i8 -4, i8 -8, i8 -16, i8 -2, i8 -4, i8 -8, i8 -16, i8 -2, i8 -4, i8 -8, i8 -16>
; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
;
%I128 = udiv i128 undef, -16

%I64 = udiv i64 undef, -16
%V2i64 = udiv <2 x i64> undef, <i64 -8, i64 -16>
%V4i64 = udiv <4 x i64> undef, <i64 -2, i64 -4, i64 -8, i64 -16>
Expand All @@ -521,6 +558,7 @@ define i32 @udiv_constnegpow2() {

define i32 @sdiv_uniformconstnegpow2() {
; CHECK-LABEL: 'sdiv_uniformconstnegpow2'
; CHECK-NEXT: Cost Model: Found an estimated cost of 16 for instruction: %I128 = sdiv i128 undef, -16
; CHECK-NEXT: Cost Model: Found an estimated cost of 7 for instruction: %I64 = sdiv i64 undef, -16
; CHECK-NEXT: Cost Model: Found an estimated cost of 10 for instruction: %V2i64 = sdiv <2 x i64> undef, <i64 -16, i64 -16>
; CHECK-NEXT: Cost Model: Found an estimated cost of 20 for instruction: %V4i64 = sdiv <4 x i64> undef, <i64 -16, i64 -16, i64 -16, i64 -16>
Expand All @@ -539,6 +577,8 @@ define i32 @sdiv_uniformconstnegpow2() {
; CHECK-NEXT: Cost Model: Found an estimated cost of 320 for instruction: %V64i8 = sdiv <64 x i8> undef, <i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16>
; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
;
%I128 = sdiv i128 undef, -16

%I64 = sdiv i64 undef, -16
%V2i64 = sdiv <2 x i64> undef, <i64 -16, i64 -16>
%V4i64 = sdiv <4 x i64> undef, <i64 -16, i64 -16, i64 -16, i64 -16>
Expand All @@ -564,6 +604,7 @@ define i32 @sdiv_uniformconstnegpow2() {

define i32 @udiv_uniformconstnegpow2() {
; CHECK-LABEL: 'udiv_uniformconstnegpow2'
; CHECK-NEXT: Cost Model: Found an estimated cost of 14 for instruction: %I128 = udiv i128 undef, -16
; CHECK-NEXT: Cost Model: Found an estimated cost of 7 for instruction: %I64 = udiv i64 undef, -16
; CHECK-NEXT: Cost Model: Found an estimated cost of 10 for instruction: %V2i64 = udiv <2 x i64> undef, <i64 -16, i64 -16>
; CHECK-NEXT: Cost Model: Found an estimated cost of 20 for instruction: %V4i64 = udiv <4 x i64> undef, <i64 -16, i64 -16, i64 -16, i64 -16>
Expand All @@ -582,6 +623,8 @@ define i32 @udiv_uniformconstnegpow2() {
; CHECK-NEXT: Cost Model: Found an estimated cost of 320 for instruction: %V64i8 = udiv <64 x i8> undef, <i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16, i8 -16>
; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
;
%I128 = udiv i128 undef, -16

%I64 = udiv i64 undef, -16
%V2i64 = udiv <2 x i64> undef, <i64 -16, i64 -16>
%V4i64 = udiv <4 x i64> undef, <i64 -16, i64 -16, i64 -16, i64 -16>
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