File: int-operands-extcost.ll

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 995,808 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (45 lines) | stat: -rw-r--r-- 2,132 bytes parent folder | download | duplicates (8)
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 1 for instruction:   ret void
}