Sam Parker acf0bb41e4 [ARM][CostModel] Select instruction costs.
Modify the ARM getCmpSelInstrCost implementation for the code size
costs of selects. Now consider the legalization cost and increase
the cost of i1 because those values wouldn't live in a general purpose
register. We also make selects +1 more expensive to account for the IT
instruction.

Differential Revision: https://reviews.llvm.org/D82091
2020-08-21 08:49:56 +01:00

164 lines
15 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py
; RUN: opt < %s -cost-model -analyze -cost-kind=code-size -mtriple=thumbv8m.base | FileCheck %s --check-prefix=CHECK-T1-SIZE
; RUN: opt < %s -cost-model -analyze -cost-kind=code-size -mtriple=thumbv8m.main | FileCheck %s --check-prefix=CHECK-T2-SIZE
; RUN: opt < %s -cost-model -analyze -cost-kind=latency -mtriple=thumbv8m.base | FileCheck %s --check-prefix=CHECK-T1-LATENCY
; RUN: opt < %s -cost-model -analyze -cost-kind=latency -mtriple=thumbv8m.main | FileCheck %s --check-prefix=CHECK-T2-LATENCY
; RUN: opt < %s -cost-model -analyze -cost-kind=throughput -mtriple=thumbv8m.base | FileCheck %s --check-prefix=CHECK-T1-THROUGHPUT
; RUN: opt < %s -cost-model -analyze -cost-kind=throughput -mtriple=thumbv8m.main | FileCheck %s --check-prefix=CHECK-T2-THROUGHPUT
define i32 @const_costs() {
; CHECK-T1-SIZE-LABEL: 'const_costs'
; CHECK-T1-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %add_1 = add i32 undef, 1
; CHECK-T1-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %add_32767 = add i32 undef, 32767
; CHECK-T1-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sub_1 = sub i32 undef, 1
; CHECK-T1-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sub_32768 = sub i32 undef, 32768
; CHECK-T1-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %mul_2 = mul i32 undef, 2
; CHECK-T1-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %mul_3 = mul i32 undef, 3
; CHECK-T1-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %mul_27 = mul i32 undef, 27
; CHECK-T1-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %and_255 = and i32 undef, 255
; CHECK-T1-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %and_65535 = and i32 undef, 65535
; CHECK-T1-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %and_1 = and i32 undef, 1
; CHECK-T1-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %xor_1 = xor i32 undef, 1
; CHECK-T1-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %xor_7 = xor i32 undef, 7
; CHECK-T1-SIZE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: %gep_1 = getelementptr i32, i32* undef, i32 1
; CHECK-T1-SIZE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: %gep_16 = getelementptr i32, i32* undef, i32 16
; CHECK-T1-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %cmp_244 = icmp ne i32 undef, 244
; CHECK-T1-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %cmp_256 = icmp uge i32 undef, 256
; CHECK-T1-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %cmp_1024 = icmp ult i32 undef, 1024
; CHECK-T1-SIZE-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %select_1_0 = select i1 undef, i32 1, i32 0
; CHECK-T1-SIZE-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %select_7_255 = select i1 undef, i32 7, i32 255
; CHECK-T1-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: ret i32 1
;
; CHECK-T2-SIZE-LABEL: 'const_costs'
; CHECK-T2-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %add_1 = add i32 undef, 1
; CHECK-T2-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %add_32767 = add i32 undef, 32767
; CHECK-T2-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sub_1 = sub i32 undef, 1
; CHECK-T2-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sub_32768 = sub i32 undef, 32768
; CHECK-T2-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %mul_2 = mul i32 undef, 2
; CHECK-T2-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %mul_3 = mul i32 undef, 3
; CHECK-T2-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %mul_27 = mul i32 undef, 27
; CHECK-T2-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %and_255 = and i32 undef, 255
; CHECK-T2-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %and_65535 = and i32 undef, 65535
; CHECK-T2-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %and_1 = and i32 undef, 1
; CHECK-T2-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %xor_1 = xor i32 undef, 1
; CHECK-T2-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %xor_7 = xor i32 undef, 7
; CHECK-T2-SIZE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: %gep_1 = getelementptr i32, i32* undef, i32 1
; CHECK-T2-SIZE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: %gep_16 = getelementptr i32, i32* undef, i32 16
; CHECK-T2-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %cmp_244 = icmp ne i32 undef, 244
; CHECK-T2-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %cmp_256 = icmp uge i32 undef, 256
; CHECK-T2-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %cmp_1024 = icmp ult i32 undef, 1024
; CHECK-T2-SIZE-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %select_1_0 = select i1 undef, i32 1, i32 0
; CHECK-T2-SIZE-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %select_7_255 = select i1 undef, i32 7, i32 255
; CHECK-T2-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: ret i32 1
;
; CHECK-T1-LATENCY-LABEL: 'const_costs'
; CHECK-T1-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %add_1 = add i32 undef, 1
; CHECK-T1-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %add_32767 = add i32 undef, 32767
; CHECK-T1-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sub_1 = sub i32 undef, 1
; CHECK-T1-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sub_32768 = sub i32 undef, 32768
; CHECK-T1-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %mul_2 = mul i32 undef, 2
; CHECK-T1-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %mul_3 = mul i32 undef, 3
; CHECK-T1-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %mul_27 = mul i32 undef, 27
; CHECK-T1-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %and_255 = and i32 undef, 255
; CHECK-T1-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %and_65535 = and i32 undef, 65535
; CHECK-T1-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %and_1 = and i32 undef, 1
; CHECK-T1-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %xor_1 = xor i32 undef, 1
; CHECK-T1-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %xor_7 = xor i32 undef, 7
; CHECK-T1-LATENCY-NEXT: Cost Model: Found an estimated cost of 0 for instruction: %gep_1 = getelementptr i32, i32* undef, i32 1
; CHECK-T1-LATENCY-NEXT: Cost Model: Found an estimated cost of 0 for instruction: %gep_16 = getelementptr i32, i32* undef, i32 16
; CHECK-T1-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %cmp_244 = icmp ne i32 undef, 244
; CHECK-T1-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %cmp_256 = icmp uge i32 undef, 256
; CHECK-T1-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %cmp_1024 = icmp ult i32 undef, 1024
; CHECK-T1-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %select_1_0 = select i1 undef, i32 1, i32 0
; CHECK-T1-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %select_7_255 = select i1 undef, i32 7, i32 255
; CHECK-T1-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: ret i32 1
;
; CHECK-T2-LATENCY-LABEL: 'const_costs'
; CHECK-T2-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %add_1 = add i32 undef, 1
; CHECK-T2-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %add_32767 = add i32 undef, 32767
; CHECK-T2-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sub_1 = sub i32 undef, 1
; CHECK-T2-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sub_32768 = sub i32 undef, 32768
; CHECK-T2-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %mul_2 = mul i32 undef, 2
; CHECK-T2-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %mul_3 = mul i32 undef, 3
; CHECK-T2-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %mul_27 = mul i32 undef, 27
; CHECK-T2-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %and_255 = and i32 undef, 255
; CHECK-T2-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %and_65535 = and i32 undef, 65535
; CHECK-T2-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %and_1 = and i32 undef, 1
; CHECK-T2-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %xor_1 = xor i32 undef, 1
; CHECK-T2-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %xor_7 = xor i32 undef, 7
; CHECK-T2-LATENCY-NEXT: Cost Model: Found an estimated cost of 0 for instruction: %gep_1 = getelementptr i32, i32* undef, i32 1
; CHECK-T2-LATENCY-NEXT: Cost Model: Found an estimated cost of 0 for instruction: %gep_16 = getelementptr i32, i32* undef, i32 16
; CHECK-T2-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %cmp_244 = icmp ne i32 undef, 244
; CHECK-T2-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %cmp_256 = icmp uge i32 undef, 256
; CHECK-T2-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %cmp_1024 = icmp ult i32 undef, 1024
; CHECK-T2-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %select_1_0 = select i1 undef, i32 1, i32 0
; CHECK-T2-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %select_7_255 = select i1 undef, i32 7, i32 255
; CHECK-T2-LATENCY-NEXT: Cost Model: Found an estimated cost of 1 for instruction: ret i32 1
;
; CHECK-T1-THROUGHPUT-LABEL: 'const_costs'
; CHECK-T1-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %add_1 = add i32 undef, 1
; CHECK-T1-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %add_32767 = add i32 undef, 32767
; CHECK-T1-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sub_1 = sub i32 undef, 1
; CHECK-T1-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sub_32768 = sub i32 undef, 32768
; CHECK-T1-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %mul_2 = mul i32 undef, 2
; CHECK-T1-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %mul_3 = mul i32 undef, 3
; CHECK-T1-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %mul_27 = mul i32 undef, 27
; CHECK-T1-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %and_255 = and i32 undef, 255
; CHECK-T1-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %and_65535 = and i32 undef, 65535
; CHECK-T1-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %and_1 = and i32 undef, 1
; CHECK-T1-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %xor_1 = xor i32 undef, 1
; CHECK-T1-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %xor_7 = xor i32 undef, 7
; CHECK-T1-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 0 for instruction: %gep_1 = getelementptr i32, i32* undef, i32 1
; CHECK-T1-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 0 for instruction: %gep_16 = getelementptr i32, i32* undef, i32 16
; CHECK-T1-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %cmp_244 = icmp ne i32 undef, 244
; CHECK-T1-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %cmp_256 = icmp uge i32 undef, 256
; CHECK-T1-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %cmp_1024 = icmp ult i32 undef, 1024
; CHECK-T1-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %select_1_0 = select i1 undef, i32 1, i32 0
; CHECK-T1-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %select_7_255 = select i1 undef, i32 7, i32 255
; CHECK-T1-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: ret i32 1
;
; CHECK-T2-THROUGHPUT-LABEL: 'const_costs'
; CHECK-T2-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %add_1 = add i32 undef, 1
; CHECK-T2-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %add_32767 = add i32 undef, 32767
; CHECK-T2-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sub_1 = sub i32 undef, 1
; CHECK-T2-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sub_32768 = sub i32 undef, 32768
; CHECK-T2-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %mul_2 = mul i32 undef, 2
; CHECK-T2-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %mul_3 = mul i32 undef, 3
; CHECK-T2-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %mul_27 = mul i32 undef, 27
; CHECK-T2-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %and_255 = and i32 undef, 255
; CHECK-T2-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %and_65535 = and i32 undef, 65535
; CHECK-T2-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %and_1 = and i32 undef, 1
; CHECK-T2-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %xor_1 = xor i32 undef, 1
; CHECK-T2-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %xor_7 = xor i32 undef, 7
; CHECK-T2-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 0 for instruction: %gep_1 = getelementptr i32, i32* undef, i32 1
; CHECK-T2-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 0 for instruction: %gep_16 = getelementptr i32, i32* undef, i32 16
; CHECK-T2-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %cmp_244 = icmp ne i32 undef, 244
; CHECK-T2-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %cmp_256 = icmp uge i32 undef, 256
; CHECK-T2-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %cmp_1024 = icmp ult i32 undef, 1024
; CHECK-T2-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %select_1_0 = select i1 undef, i32 1, i32 0
; CHECK-T2-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %select_7_255 = select i1 undef, i32 7, i32 255
; CHECK-T2-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: ret i32 1
;
%add_1 = add i32 undef, 1
%add_32767 = add i32 undef, 32767
%sub_1 = sub i32 undef, 1
%sub_32768 = sub i32 undef, 32768
%mul_2 = mul i32 undef, 2
%mul_3 = mul i32 undef, 3
%mul_27 = mul i32 undef, 27
%and_255 = and i32 undef, 255
%and_65535 = and i32 undef, 65535
%and_1 = and i32 undef, 1
%xor_1 = xor i32 undef, 1
%xor_7 = xor i32 undef, 7
%gep_1 = getelementptr i32, i32* undef, i32 1
%gep_16 = getelementptr i32, i32* undef, i32 16
%cmp_244 = icmp ne i32 undef, 244
%cmp_256 = icmp uge i32 undef, 256
%cmp_1024 = icmp ult i32 undef, 1024
%select_1_0 = select i1 undef, i32 1, i32 0
%select_7_255 = select i1 undef, i32 7, i32 255
ret i32 1
}