File: invariant.ll

package info (click to toggle)
llvm-toolchain-14 1%3A14.0.6-12
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,496,180 kB
  • sloc: cpp: 5,593,972; ansic: 986,872; asm: 585,869; python: 184,223; objc: 72,530; lisp: 31,119; f90: 27,793; javascript: 9,780; pascal: 9,762; sh: 9,482; perl: 7,468; ml: 5,432; awk: 3,523; makefile: 2,538; xml: 953; cs: 573; fortran: 567
file content (59 lines) | stat: -rw-r--r-- 1,659 bytes parent folder | download | duplicates (9)
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
; RUN: opt -passes=globalopt -S -o - < %s | FileCheck %s

target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

declare {}* @llvm.invariant.start.p0i8(i64 %size, i8* nocapture %ptr)

define void @test1(i8* %ptr) {
  call {}* @llvm.invariant.start.p0i8(i64 4, i8* %ptr)
  ret void
}

@object1 = global i32 0
; CHECK: @object1 = constant i32 -1
define void @ctor1() {
  store i32 -1, i32* @object1
  %A = bitcast i32* @object1 to i8*
  call void @test1(i8* %A)
  ret void
}


@object2 = global i32 0
; CHECK: @object2 = global i32 0
define void @ctor2() {
  store i32 -1, i32* @object2
  %A = bitcast i32* @object2 to i8*
  %B = call {}* @llvm.invariant.start.p0i8(i64 4, i8* %A)
  %C = bitcast {}* %B to i8*
  ret void
}


@object3 = global i32 0
; CHECK: @object3 = global i32 -1
define void @ctor3() {
  store i32 -1, i32* @object3
  %A = bitcast i32* @object3 to i8*
  call {}* @llvm.invariant.start.p0i8(i64 3, i8* %A)
  ret void
}


@object4 = global i32 0
; CHECK: @object4 = global i32 -1
define void @ctor4() {
  store i32 -1, i32* @object4
  %A = bitcast i32* @object4 to i8*
  call {}* @llvm.invariant.start.p0i8(i64 -1, i8* %A)
  ret void
}


@llvm.global_ctors = appending constant
  [4 x { i32, void ()*, i8* }]
  [ { i32, void ()*, i8* } { i32 65535, void ()* @ctor1, i8* null },
    { i32, void ()*, i8* } { i32 65535, void ()* @ctor2, i8* null },
    { i32, void ()*, i8* } { i32 65535, void ()* @ctor3, i8* null },
    { i32, void ()*, i8* } { i32 65535, void ()* @ctor4, i8* null } ]