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clang-p2996/llvm/test/Analysis/CostModel/SystemZ/int-arith.ll
Jonas Paulsson 4645711a8d [SystemZ] Improve handling and cost estimates of vector integer div/rem 
Enable the DAG optimization that converts vector div/rem with constants into
multiply+shifts sequences by expanding them early. This is needed since
ISD::SMUL_LOHI is 'Custom' lowered on SystemZ, and will therefore not be
available to BuildSDIV after legalization.

Better cost values for these instructions based on how they will be
implemented (a constant divisor is cheaper).

Review: Ulrich Weigand
https://reviews.llvm.org/D53196

llvm-svn: 345321
2018-10-25 21:47:22 +00:00

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8.5 KiB
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; RUN: opt < %s -cost-model -analyze -mtriple=systemz-unknown -mcpu=z13 | FileCheck %s
;
; Note: The scalarized vector instructions costs are not including any
; extracts, due to the undef operands.
define void @add() {
%res0 = add i8 undef, undef
%res1 = add i16 undef, undef
%res2 = add i32 undef, undef
%res3 = add i64 undef, undef
%res4 = add <2 x i8> undef, undef
%res5 = add <2 x i16> undef, undef
%res6 = add <2 x i32> undef, undef
%res7 = add <2 x i64> undef, undef
%res8 = add <4 x i8> undef, undef
%res9 = add <4 x i16> undef, undef
%res10 = add <4 x i32> undef, undef
%res11 = add <4 x i64> undef, undef
%res12 = add <8 x i8> undef, undef
%res13 = add <8 x i16> undef, undef
%res14 = add <8 x i32> undef, undef
%res15 = add <8 x i64> undef, undef
%res16 = add <16 x i8> undef, undef
%res17 = add <16 x i16> undef, undef
%res18 = add <16 x i32> undef, undef
%res19 = add <16 x i64> undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res0 = add i8 undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res1 = add i16 undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res2 = add i32 undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res3 = add i64 undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res4 = add <2 x i8> undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res5 = add <2 x i16> undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res6 = add <2 x i32> undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res7 = add <2 x i64> undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res8 = add <4 x i8> undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res9 = add <4 x i16> undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res10 = add <4 x i32> undef, undef
; CHECK: Cost Model: Found an estimated cost of 2 for instruction: %res11 = add <4 x i64> undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res12 = add <8 x i8> undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res13 = add <8 x i16> undef, undef
; CHECK: Cost Model: Found an estimated cost of 2 for instruction: %res14 = add <8 x i32> undef, undef
; CHECK: Cost Model: Found an estimated cost of 4 for instruction: %res15 = add <8 x i64> undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res16 = add <16 x i8> undef, undef
; CHECK: Cost Model: Found an estimated cost of 2 for instruction: %res17 = add <16 x i16> undef, undef
; CHECK: Cost Model: Found an estimated cost of 4 for instruction: %res18 = add <16 x i32> undef, undef
; CHECK: Cost Model: Found an estimated cost of 8 for instruction: %res19 = add <16 x i64> undef, undef
ret void;
}
define void @sub() {
%res0 = sub i8 undef, undef
%res1 = sub i16 undef, undef
%res2 = sub i32 undef, undef
%res3 = sub i64 undef, undef
%res4 = sub <2 x i8> undef, undef
%res5 = sub <2 x i16> undef, undef
%res6 = sub <2 x i32> undef, undef
%res7 = sub <2 x i64> undef, undef
%res8 = sub <4 x i8> undef, undef
%res9 = sub <4 x i16> undef, undef
%res10 = sub <4 x i32> undef, undef
%res11 = sub <4 x i64> undef, undef
%res12 = sub <8 x i8> undef, undef
%res13 = sub <8 x i16> undef, undef
%res14 = sub <8 x i32> undef, undef
%res15 = sub <8 x i64> undef, undef
%res16 = sub <16 x i8> undef, undef
%res17 = sub <16 x i16> undef, undef
%res18 = sub <16 x i32> undef, undef
%res19 = sub <16 x i64> undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res0 = sub i8 undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res1 = sub i16 undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res2 = sub i32 undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res3 = sub i64 undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res4 = sub <2 x i8> undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res5 = sub <2 x i16> undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res6 = sub <2 x i32> undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res7 = sub <2 x i64> undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res8 = sub <4 x i8> undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res9 = sub <4 x i16> undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res10 = sub <4 x i32> undef, undef
; CHECK: Cost Model: Found an estimated cost of 2 for instruction: %res11 = sub <4 x i64> undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res12 = sub <8 x i8> undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res13 = sub <8 x i16> undef, undef
; CHECK: Cost Model: Found an estimated cost of 2 for instruction: %res14 = sub <8 x i32> undef, undef
; CHECK: Cost Model: Found an estimated cost of 4 for instruction: %res15 = sub <8 x i64> undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res16 = sub <16 x i8> undef, undef
; CHECK: Cost Model: Found an estimated cost of 2 for instruction: %res17 = sub <16 x i16> undef, undef
; CHECK: Cost Model: Found an estimated cost of 4 for instruction: %res18 = sub <16 x i32> undef, undef
; CHECK: Cost Model: Found an estimated cost of 8 for instruction: %res19 = sub <16 x i64> undef, undef
ret void;
}
define void @mul() {
%res0 = mul i8 undef, undef
%res1 = mul i16 undef, undef
%res2 = mul i32 undef, undef
%res3 = mul i64 undef, undef
%res4 = mul <2 x i8> undef, undef
%res5 = mul <2 x i16> undef, undef
%res6 = mul <2 x i32> undef, undef
%res7 = mul <2 x i64> undef, undef
%res8 = mul <4 x i8> undef, undef
%res9 = mul <4 x i16> undef, undef
%res10 = mul <4 x i32> undef, undef
%res11 = mul <4 x i64> undef, undef
%res12 = mul <8 x i8> undef, undef
%res13 = mul <8 x i16> undef, undef
%res14 = mul <8 x i32> undef, undef
%res15 = mul <8 x i64> undef, undef
%res16 = mul <16 x i8> undef, undef
%res17 = mul <16 x i16> undef, undef
%res18 = mul <16 x i32> undef, undef
%res19 = mul <16 x i64> undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res0 = mul i8 undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res1 = mul i16 undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res2 = mul i32 undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res3 = mul i64 undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res4 = mul <2 x i8> undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res5 = mul <2 x i16> undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res6 = mul <2 x i32> undef, undef
; CHECK: Cost Model: Found an estimated cost of 3 for instruction: %res7 = mul <2 x i64> undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res8 = mul <4 x i8> undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res9 = mul <4 x i16> undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res10 = mul <4 x i32> undef, undef
; CHECK: Cost Model: Found an estimated cost of 6 for instruction: %res11 = mul <4 x i64> undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res12 = mul <8 x i8> undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res13 = mul <8 x i16> undef, undef
; CHECK: Cost Model: Found an estimated cost of 2 for instruction: %res14 = mul <8 x i32> undef, undef
; CHECK: Cost Model: Found an estimated cost of 12 for instruction: %res15 = mul <8 x i64> undef, undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %res16 = mul <16 x i8> undef, undef
; CHECK: Cost Model: Found an estimated cost of 2 for instruction: %res17 = mul <16 x i16> undef, undef
; CHECK: Cost Model: Found an estimated cost of 4 for instruction: %res18 = mul <16 x i32> undef, undef
; CHECK: Cost Model: Found an estimated cost of 24 for instruction: %res19 = mul <16 x i64> undef, undef
ret void;
}
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