File: neg-of-3ops-lea.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 (86 lines) | stat: -rw-r--r-- 2,460 bytes parent folder | download | duplicates (4)
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
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i686--   -mattr=+slow-3ops-lea | FileCheck %s -check-prefixes=CHECK,X86,SLOW,SLOW-X86
; RUN: llc < %s -mtriple=i686--   -mattr=-slow-3ops-lea | FileCheck %s -check-prefixes=CHECK,X86,FAST,FAST-X86
; RUN: llc < %s -mtriple=x86_64-- -mattr=+slow-3ops-lea | FileCheck %s -check-prefixes=CHECK,X64,SLOW,SLOW-X64
; RUN: llc < %s -mtriple=x86_64-- -mattr=-slow-3ops-lea | FileCheck %s -check-prefixes=CHECK,X64,FAST,FAST-X64

; )32-a)-b  -->  32-(a+b)  -->  -(a+b)+32  -->  -((a+b)-32)  ->  -(a+b+(-32))

define i32 @t0(i32 %a, i32 %b) {
; X86-LABEL: t0:
; X86:       # %bb.0:
; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    addl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    movl $32, %eax
; X86-NEXT:    subl %ecx, %eax
; X86-NEXT:    retl
;
; X64-LABEL: t0:
; X64:       # %bb.0:
; X64-NEXT:    addl %esi, %edi
; X64-NEXT:    movl $32, %eax
; X64-NEXT:    subl %edi, %eax
; X64-NEXT:    retq
  %t0 = sub i32 32, %a
  %r = sub i32 %t0, %b
  ret i32 %r
}
define i32 @t1(i32 %a, i32 %b) {
; X86-LABEL: t1:
; X86:       # %bb.0:
; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    addl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    movl $32, %eax
; X86-NEXT:    subl %ecx, %eax
; X86-NEXT:    retl
;
; X64-LABEL: t1:
; X64:       # %bb.0:
; X64-NEXT:    addl %esi, %edi
; X64-NEXT:    movl $32, %eax
; X64-NEXT:    subl %edi, %eax
; X64-NEXT:    retq
  %t0 = add i32 %a, %b
  %r = sub i32 32, %t0
  ret i32 %r
}
define i32 @t2(i32 %a, i32 %b) {
; X86-LABEL: t2:
; X86:       # %bb.0:
; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    addl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    movl $32, %eax
; X86-NEXT:    subl %ecx, %eax
; X86-NEXT:    retl
;
; X64-LABEL: t2:
; X64:       # %bb.0:
; X64-NEXT:    addl %esi, %edi
; X64-NEXT:    movl $32, %eax
; X64-NEXT:    subl %edi, %eax
; X64-NEXT:    retq
  %t0 = add i32 %a, %b
  %t1 = sub i32 0, %t0
  %r = add i32 %t1, 32
  ret i32 %r
}
define i32 @t3(i32 %a, i32 %b) {
; X86-LABEL: t3:
; X86:       # %bb.0:
; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    addl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    movl $32, %eax
; X86-NEXT:    subl %ecx, %eax
; X86-NEXT:    retl
;
; X64-LABEL: t3:
; X64:       # %bb.0:
; X64-NEXT:    addl %esi, %edi
; X64-NEXT:    movl $32, %eax
; X64-NEXT:    subl %edi, %eax
; X64-NEXT:    retq
  %t0 = add i32 %a, %b
  %t1 = sub i32 %t0, 32
  %r = sub i32 0, %t1
  ret i32 %r
}