1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
; RUN: opt < %s -cost-model -analyze -mtriple=systemz-unknown -mcpu=z13 \
; RUN: | FileCheck %s
;
; Test that i8/i16 operands get extra costs for extensions to i32 only in
; cases where this is needed.
define void @icmp() {
%li8_0 = load i8, i8* undef
%li8_1 = load i8, i8* undef
icmp slt i8 %li8_0, %li8_1
%a0 = add i8 %li8_0, 1
%a1 = add i8 %li8_1, 1
icmp slt i8 %a0, %a1
icmp slt i8 %a0, 123
%li16_0 = load i16, i16* undef
%li16_1 = load i16, i16* undef
icmp slt i16 %li16_0, %li16_1
%a2 = add i16 %li16_0, 1
%a3 = add i16 %li16_1, 1
icmp slt i16 %a2, %a3
icmp slt i16 %a2, 123
ret void;
; CHECK: Printing analysis 'Cost Model Analysis' for function 'icmp':
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %li8_0 = load i8, i8* undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %li8_1 = load i8, i8* undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %1 = icmp slt i8 %li8_0, %li8_1
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %a0 = add i8 %li8_0, 1
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %a1 = add i8 %li8_1, 1
; CHECK: Cost Model: Found an estimated cost of 3 for instruction: %2 = icmp slt i8 %a0, %a1
; CHECK: Cost Model: Found an estimated cost of 2 for instruction: %3 = icmp slt i8 %a0, 123
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %li16_0 = load i16, i16* undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %li16_1 = load i16, i16* undef
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %4 = icmp slt i16 %li16_0, %li16_1
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %a2 = add i16 %li16_0, 1
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %a3 = add i16 %li16_1, 1
; CHECK: Cost Model: Found an estimated cost of 3 for instruction: %5 = icmp slt i16 %a2, %a3
; CHECK: Cost Model: Found an estimated cost of 2 for instruction: %6 = icmp slt i16 %a2, 123
; CHECK: Cost Model: Found an estimated cost of 0 for instruction: ret void
}
|
