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[RISCV][TTI] Scale the cost of intrinsic stepvector with LMUL #87301

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Apr 4, 2024
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[RISCV][TTI] Scale the cost of intrinsic stepvector with LMUL #87301

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0700688
[RISCV][TTI] Scale the cost of intrinsic stepvector with LMUL
arcbbb Apr 2, 2024
34d7939
keep scalar case when V is not supported
arcbbb Apr 2, 2024
a2f7a33
Add legalization cost for illegal type
arcbbb Apr 3, 2024
6f99212
Remove duplicated test cases
arcbbb Apr 3, 2024
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9 changes: 7 additions & 2 deletions llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -861,9 +861,14 @@ RISCVTTIImpl::getIntrinsicInstrCost(const IntrinsicCostAttributes &ICA,
}
// TODO: add more intrinsic
case Intrinsic::experimental_stepvector: {
unsigned Cost = 1; // vid
auto LT = getTypeLegalizationCost(RetTy);
return Cost + (LT.first - 1);
// Legalisation of illegal types involves an `index' instruction plus
// (LT.first - 1) vector adds.
if (ST->hasVInstructions())
return getRISCVInstructionCost(RISCV::VID_V, LT.second, CostKind) +
(LT.first - 1) *
getRISCVInstructionCost(RISCV::VADD_VX, LT.second, CostKind);
return 1 + (LT.first - 1);
}
case Intrinsic::vp_rint: {
// RISC-V target uses at least 5 instructions to lower rounding intrinsics.
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143 changes: 54 additions & 89 deletions llvm/test/Analysis/CostModel/RISCV/stepvector.ll
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Original file line number Diff line number Diff line change
Expand Up @@ -4,98 +4,60 @@

define void @stepvector() {
; CHECK-LABEL: 'stepvector'
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %zero = call <vscale x 1 x i8> @llvm.experimental.stepvector.nxv1i8()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %1 = call <vscale x 2 x i8> @llvm.experimental.stepvector.nxv2i8()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %2 = call <vscale x 4 x i8> @llvm.experimental.stepvector.nxv4i8()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %3 = call <vscale x 8 x i8> @llvm.experimental.stepvector.nxv8i8()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %1 = call <vscale x 1 x i8> @llvm.experimental.stepvector.nxv1i8()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %2 = call <vscale x 2 x i8> @llvm.experimental.stepvector.nxv2i8()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %3 = call <vscale x 4 x i8> @llvm.experimental.stepvector.nxv4i8()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %4 = call <vscale x 8 x i8> @llvm.experimental.stepvector.nxv8i8()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %5 = call <vscale x 8 x i8> @llvm.experimental.stepvector.nxv8i8()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %6 = call <vscale x 8 x i8> @llvm.experimental.stepvector.nxv8i8()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %7 = call <vscale x 8 x i8> @llvm.experimental.stepvector.nxv8i8()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %8 = call <vscale x 16 x i8> @llvm.experimental.stepvector.nxv16i8()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %9 = call <vscale x 32 x i8> @llvm.experimental.stepvector.nxv32i8()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %10 = call <vscale x 64 x i8> @llvm.experimental.stepvector.nxv64i8()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %11 = call <vscale x 1 x i16> @llvm.experimental.stepvector.nxv1i16()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %12 = call <vscale x 2 x i16> @llvm.experimental.stepvector.nxv2i16()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %13 = call <vscale x 4 x i16> @llvm.experimental.stepvector.nxv4i16()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %14 = call <vscale x 8 x i16> @llvm.experimental.stepvector.nxv8i16()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %15 = call <vscale x 16 x i16> @llvm.experimental.stepvector.nxv16i16()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %16 = call <vscale x 16 x i16> @llvm.experimental.stepvector.nxv16i16()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %17 = call <vscale x 16 x i16> @llvm.experimental.stepvector.nxv16i16()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %18 = call <vscale x 16 x i16> @llvm.experimental.stepvector.nxv16i16()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %19 = call <vscale x 16 x i16> @llvm.experimental.stepvector.nxv16i16()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %20 = call <vscale x 32 x i16> @llvm.experimental.stepvector.nxv32i16()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %21 = call <vscale x 1 x i32> @llvm.experimental.stepvector.nxv1i32()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %22 = call <vscale x 2 x i32> @llvm.experimental.stepvector.nxv2i32()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %23 = call <vscale x 4 x i32> @llvm.experimental.stepvector.nxv4i32()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %24 = call <vscale x 8 x i32> @llvm.experimental.stepvector.nxv8i32()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %25 = call <vscale x 16 x i32> @llvm.experimental.stepvector.nxv16i32()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %26 = call <vscale x 16 x i32> @llvm.experimental.stepvector.nxv16i32()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %27 = call <vscale x 16 x i32> @llvm.experimental.stepvector.nxv16i32()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %28 = call <vscale x 16 x i32> @llvm.experimental.stepvector.nxv16i32()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %29 = call <vscale x 16 x i32> @llvm.experimental.stepvector.nxv16i32()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %30 = call <vscale x 1 x i64> @llvm.experimental.stepvector.nxv1i64()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %31 = call <vscale x 2 x i64> @llvm.experimental.stepvector.nxv2i64()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %32 = call <vscale x 4 x i64> @llvm.experimental.stepvector.nxv4i64()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %33 = call <vscale x 8 x i64> @llvm.experimental.stepvector.nxv8i64()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %34 = call <vscale x 8 x i64> @llvm.experimental.stepvector.nxv8i64()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %35 = call <vscale x 8 x i64> @llvm.experimental.stepvector.nxv8i64()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %36 = call <vscale x 8 x i64> @llvm.experimental.stepvector.nxv8i64()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %37 = call <vscale x 8 x i64> @llvm.experimental.stepvector.nxv8i64()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %38 = call <vscale x 8 x i64> @llvm.experimental.stepvector.nxv8i64()
; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %39 = call <vscale x 16 x i64> @llvm.experimental.stepvector.nxv16i64()
; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %40 = call <vscale x 16 x i64> @llvm.experimental.stepvector.nxv16i64()
; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %41 = call <vscale x 16 x i64> @llvm.experimental.stepvector.nxv16i64()
; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %42 = call <vscale x 16 x i64> @llvm.experimental.stepvector.nxv16i64()
; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %43 = call <vscale x 16 x i64> @llvm.experimental.stepvector.nxv16i64()
; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %44 = call <vscale x 16 x i64> @llvm.experimental.stepvector.nxv16i64()
; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %5 = call <vscale x 16 x i8> @llvm.experimental.stepvector.nxv16i8()
; CHECK-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %6 = call <vscale x 32 x i8> @llvm.experimental.stepvector.nxv32i8()
; CHECK-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %7 = call <vscale x 64 x i8> @llvm.experimental.stepvector.nxv64i8()
; CHECK-NEXT: Cost Model: Found an estimated cost of 16 for instruction: %8 = call <vscale x 128 x i8> @llvm.experimental.stepvector.nxv128i8()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %9 = call <vscale x 1 x i16> @llvm.experimental.stepvector.nxv1i16()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %10 = call <vscale x 2 x i16> @llvm.experimental.stepvector.nxv2i16()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %11 = call <vscale x 4 x i16> @llvm.experimental.stepvector.nxv4i16()
; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %12 = call <vscale x 8 x i16> @llvm.experimental.stepvector.nxv8i16()
; CHECK-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %13 = call <vscale x 16 x i16> @llvm.experimental.stepvector.nxv16i16()
; CHECK-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %14 = call <vscale x 32 x i16> @llvm.experimental.stepvector.nxv32i16()
; CHECK-NEXT: Cost Model: Found an estimated cost of 16 for instruction: %15 = call <vscale x 64 x i16> @llvm.experimental.stepvector.nxv64i16()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %16 = call <vscale x 1 x i32> @llvm.experimental.stepvector.nxv1i32()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %17 = call <vscale x 2 x i32> @llvm.experimental.stepvector.nxv2i32()
; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %18 = call <vscale x 4 x i32> @llvm.experimental.stepvector.nxv4i32()
; CHECK-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %19 = call <vscale x 8 x i32> @llvm.experimental.stepvector.nxv8i32()
; CHECK-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %20 = call <vscale x 16 x i32> @llvm.experimental.stepvector.nxv16i32()
; CHECK-NEXT: Cost Model: Found an estimated cost of 16 for instruction: %21 = call <vscale x 32 x i32> @llvm.experimental.stepvector.nxv32i32()
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %22 = call <vscale x 1 x i64> @llvm.experimental.stepvector.nxv1i64()
; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %23 = call <vscale x 2 x i64> @llvm.experimental.stepvector.nxv2i64()
; CHECK-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %24 = call <vscale x 4 x i64> @llvm.experimental.stepvector.nxv4i64()
; CHECK-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %25 = call <vscale x 8 x i64> @llvm.experimental.stepvector.nxv8i64()
; CHECK-NEXT: Cost Model: Found an estimated cost of 16 for instruction: %26 = call <vscale x 16 x i64> @llvm.experimental.stepvector.nxv16i64()
; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
%zero = call <vscale x 1 x i8> @llvm.experimental.stepvector.nxv1i8()
%1 = call <vscale x 2 x i8> @llvm.experimental.stepvector.nxv2i8()
%2 = call <vscale x 4 x i8> @llvm.experimental.stepvector.nxv4i8()
%3 = call <vscale x 8 x i8> @llvm.experimental.stepvector.nxv8i8()
%4 = call <vscale x 8 x i8> @llvm.experimental.stepvector.nxv8i8()
%5 = call <vscale x 8 x i8> @llvm.experimental.stepvector.nxv8i8()
%6 = call <vscale x 8 x i8> @llvm.experimental.stepvector.nxv8i8()
%7 = call <vscale x 8 x i8> @llvm.experimental.stepvector.nxv8i8()
%8 = call <vscale x 16 x i8> @llvm.experimental.stepvector.nxv16i8()
%9 = call <vscale x 32 x i8> @llvm.experimental.stepvector.nxv32i8()
%10 = call <vscale x 64 x i8> @llvm.experimental.stepvector.nxv64i8()
%11 = call <vscale x 1 x i16> @llvm.experimental.stepvector.nxv1i16()
%12 = call <vscale x 2 x i16> @llvm.experimental.stepvector.nxv2i16()
%13 = call <vscale x 4 x i16> @llvm.experimental.stepvector.nxv4i16()
%14 = call <vscale x 8 x i16> @llvm.experimental.stepvector.nxv8i16()
%15 = call <vscale x 16 x i16> @llvm.experimental.stepvector.nxv16i16()
%16 = call <vscale x 16 x i16> @llvm.experimental.stepvector.nxv16i16()
%17 = call <vscale x 16 x i16> @llvm.experimental.stepvector.nxv16i16()
%18 = call <vscale x 16 x i16> @llvm.experimental.stepvector.nxv16i16()
%19 = call <vscale x 16 x i16> @llvm.experimental.stepvector.nxv16i16()
%20 = call <vscale x 32 x i16> @llvm.experimental.stepvector.nxv32i16()
%21 = call <vscale x 1 x i32> @llvm.experimental.stepvector.nxv1i32()
%22 = call <vscale x 2 x i32> @llvm.experimental.stepvector.nxv2i32()
%23 = call <vscale x 4 x i32> @llvm.experimental.stepvector.nxv4i32()
%24 = call <vscale x 8 x i32> @llvm.experimental.stepvector.nxv8i32()
%25 = call <vscale x 16 x i32> @llvm.experimental.stepvector.nxv16i32()
%26 = call <vscale x 16 x i32> @llvm.experimental.stepvector.nxv16i32()
%27 = call <vscale x 16 x i32> @llvm.experimental.stepvector.nxv16i32()
%28 = call <vscale x 16 x i32> @llvm.experimental.stepvector.nxv16i32()
%29 = call <vscale x 16 x i32> @llvm.experimental.stepvector.nxv16i32()
%30 = call <vscale x 1 x i64> @llvm.experimental.stepvector.nxv1i64()
%31 = call <vscale x 2 x i64> @llvm.experimental.stepvector.nxv2i64()
%32 = call <vscale x 4 x i64> @llvm.experimental.stepvector.nxv4i64()
%33 = call <vscale x 8 x i64> @llvm.experimental.stepvector.nxv8i64()
%34 = call <vscale x 8 x i64> @llvm.experimental.stepvector.nxv8i64()
%35 = call <vscale x 8 x i64> @llvm.experimental.stepvector.nxv8i64()
%36 = call <vscale x 8 x i64> @llvm.experimental.stepvector.nxv8i64()
%37 = call <vscale x 8 x i64> @llvm.experimental.stepvector.nxv8i64()
%38 = call <vscale x 8 x i64> @llvm.experimental.stepvector.nxv8i64()
%39 = call <vscale x 16 x i64> @llvm.experimental.stepvector.nxv16i64()
%40 = call <vscale x 16 x i64> @llvm.experimental.stepvector.nxv16i64()
%41 = call <vscale x 16 x i64> @llvm.experimental.stepvector.nxv16i64()
%42 = call <vscale x 16 x i64> @llvm.experimental.stepvector.nxv16i64()
%43 = call <vscale x 16 x i64> @llvm.experimental.stepvector.nxv16i64()
%44 = call <vscale x 16 x i64> @llvm.experimental.stepvector.nxv16i64()
call <vscale x 1 x i8> @llvm.experimental.stepvector.nxv1i8()
call <vscale x 2 x i8> @llvm.experimental.stepvector.nxv2i8()
call <vscale x 4 x i8> @llvm.experimental.stepvector.nxv4i8()
call <vscale x 8 x i8> @llvm.experimental.stepvector.nxv8i8()
call <vscale x 16 x i8> @llvm.experimental.stepvector.nxv16i8()
call <vscale x 32 x i8> @llvm.experimental.stepvector.nxv32i8()
call <vscale x 64 x i8> @llvm.experimental.stepvector.nxv64i8()
call <vscale x 128 x i8> @llvm.experimental.stepvector.nxv128i8()
call <vscale x 1 x i16> @llvm.experimental.stepvector.nxv1i16()
call <vscale x 2 x i16> @llvm.experimental.stepvector.nxv2i16()
call <vscale x 4 x i16> @llvm.experimental.stepvector.nxv4i16()
call <vscale x 8 x i16> @llvm.experimental.stepvector.nxv8i16()
call <vscale x 16 x i16> @llvm.experimental.stepvector.nxv16i16()
call <vscale x 32 x i16> @llvm.experimental.stepvector.nxv32i16()
call <vscale x 64 x i16> @llvm.experimental.stepvector.nxv64i16()
call <vscale x 1 x i32> @llvm.experimental.stepvector.nxv1i32()
call <vscale x 2 x i32> @llvm.experimental.stepvector.nxv2i32()
call <vscale x 4 x i32> @llvm.experimental.stepvector.nxv4i32()
call <vscale x 8 x i32> @llvm.experimental.stepvector.nxv8i32()
call <vscale x 16 x i32> @llvm.experimental.stepvector.nxv16i32()
call <vscale x 32 x i32> @llvm.experimental.stepvector.nxv32i32()
call <vscale x 1 x i64> @llvm.experimental.stepvector.nxv1i64()
call <vscale x 2 x i64> @llvm.experimental.stepvector.nxv2i64()
call <vscale x 4 x i64> @llvm.experimental.stepvector.nxv4i64()
call <vscale x 8 x i64> @llvm.experimental.stepvector.nxv8i64()
call <vscale x 16 x i64> @llvm.experimental.stepvector.nxv16i64()
ret void
}

Expand All @@ -107,17 +69,20 @@ declare <vscale x 8 x i8> @llvm.experimental.stepvector.nxv8i8()
declare <vscale x 16 x i8> @llvm.experimental.stepvector.nxv16i8()
declare <vscale x 32 x i8> @llvm.experimental.stepvector.nxv32i8()
declare <vscale x 64 x i8> @llvm.experimental.stepvector.nxv64i8()
declare <vscale x 128 x i8> @llvm.experimental.stepvector.nxv128i8()
declare <vscale x 1 x i16> @llvm.experimental.stepvector.nxv1i16()
declare <vscale x 2 x i16> @llvm.experimental.stepvector.nxv2i16()
declare <vscale x 4 x i16> @llvm.experimental.stepvector.nxv4i16()
declare <vscale x 8 x i16> @llvm.experimental.stepvector.nxv8i16()
declare <vscale x 16 x i16> @llvm.experimental.stepvector.nxv16i16()
declare <vscale x 32 x i16> @llvm.experimental.stepvector.nxv32i16()
declare <vscale x 64 x i16> @llvm.experimental.stepvector.nxv64i16()
declare <vscale x 1 x i32> @llvm.experimental.stepvector.nxv1i32()
declare <vscale x 2 x i32> @llvm.experimental.stepvector.nxv2i32()
declare <vscale x 4 x i32> @llvm.experimental.stepvector.nxv4i32()
declare <vscale x 8 x i32> @llvm.experimental.stepvector.nxv8i32()
declare <vscale x 16 x i32> @llvm.experimental.stepvector.nxv16i32()
declare <vscale x 32 x i32> @llvm.experimental.stepvector.nxv32i32()
declare <vscale x 1 x i64> @llvm.experimental.stepvector.nxv1i64()
declare <vscale x 2 x i64> @llvm.experimental.stepvector.nxv2i64()
declare <vscale x 4 x i64> @llvm.experimental.stepvector.nxv4i64()
Expand Down