File: invariant-group.ll

package info (click to toggle)
llvm-toolchain-15 1%3A15.0.6-4
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,554,644 kB
  • sloc: cpp: 5,922,452; ansic: 1,012,136; asm: 674,362; python: 191,568; objc: 73,855; f90: 42,327; lisp: 31,913; pascal: 11,973; javascript: 10,144; sh: 9,421; perl: 7,447; ml: 5,527; awk: 3,523; makefile: 2,520; xml: 885; cs: 573; fortran: 567
file content (81 lines) | stat: -rw-r--r-- 2,546 bytes parent folder | download
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
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=sroa -S -o - < %s | FileCheck %s

%t = type { i32, i32 }

declare ptr @llvm.launder.invariant.group.p0(ptr %a)
declare ptr @llvm.strip.invariant.group.p0(ptr %a)
declare void @h(i32 %a)
declare i32 @somevalue()

define void @f() {
; CHECK-LABEL: @f(
; CHECK-NEXT:    [[SV1:%.*]] = call i32 @somevalue()
; CHECK-NEXT:    [[SV2:%.*]] = call i32 @somevalue()
; CHECK-NEXT:    call void @h(i32 [[SV1]])
; CHECK-NEXT:    call void @h(i32 [[SV2]])
; CHECK-NEXT:    ret void
;
  %a = alloca %t

  %a1_i8_inv = call ptr @llvm.launder.invariant.group.p0(ptr %a)
  %a2 = getelementptr inbounds %t, ptr %a, i32 0, i32 1

  %sv1 = call i32 @somevalue()
  %sv2 = call i32 @somevalue()

  store i32 %sv1, ptr %a1_i8_inv, !invariant.group !0
  store i32 %sv2, ptr %a2

  %v1 = load i32, ptr %a1_i8_inv, !invariant.group !0
  %v2 = load i32, ptr %a2

  call void @h(i32 %v1)
  call void @h(i32 %v2)

  ret void
}

define void @g() {
; CHECK-LABEL: @g(
; CHECK-NEXT:    [[A:%.*]] = alloca [[T:%.*]], align 8
; CHECK-NEXT:    [[A1_I8_INV:%.*]] = call ptr @llvm.launder.invariant.group.p0(ptr [[A]])
; CHECK-NEXT:    [[A2:%.*]] = getelementptr inbounds [[T]], ptr [[A]], i32 0, i32 1
; CHECK-NEXT:    [[SV1:%.*]] = call i32 @somevalue()
; CHECK-NEXT:    [[SV2:%.*]] = call i32 @somevalue()
; CHECK-NEXT:    store i32 [[SV1]], ptr [[A1_I8_INV]], align 4, !invariant.group !0
; CHECK-NEXT:    store i32 [[SV2]], ptr [[A2]], align 4
; CHECK-NEXT:    [[V1:%.*]] = load i32, ptr [[A1_I8_INV]], align 4, !invariant.group !0
; CHECK-NEXT:    [[V2:%.*]] = load i32, ptr [[A2]], align 4
; CHECK-NEXT:    call void @h(i32 [[V1]])
; CHECK-NEXT:    call void @h(i32 [[V2]])
; CHECK-NEXT:    [[A1_STRIPPED:%.*]] = call ptr @llvm.strip.invariant.group.p0(ptr [[A]])
; CHECK-NEXT:    [[A1_INT:%.*]] = ptrtoint ptr [[A1_STRIPPED]] to i32
; CHECK-NEXT:    call void @h(i32 [[A1_INT]])
; CHECK-NEXT:    ret void
;
  %a = alloca %t

  %a1_i8_inv = call ptr @llvm.launder.invariant.group.p0(ptr %a)
  %a2 = getelementptr inbounds %t, ptr %a, i32 0, i32 1

  %sv1 = call i32 @somevalue()
  %sv2 = call i32 @somevalue()

  store i32 %sv1, ptr %a1_i8_inv, !invariant.group !0
  store i32 %sv2, ptr %a2

  %v1 = load i32, ptr %a1_i8_inv, !invariant.group !0
  %v2 = load i32, ptr %a2

  call void @h(i32 %v1)
  call void @h(i32 %v2)

  %a1_stripped = call ptr @llvm.strip.invariant.group.p0(ptr %a)
  %a1_int = ptrtoint ptr %a1_stripped to i32
  call void @h(i32 %a1_int)

  ret void
}

!0 = !{}