File: function-attrs.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 (36 lines) | stat: -rw-r--r-- 904 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
 
; RUN: opt -S -functionattrs < %s | FileCheck %s

declare void @f_readonly() readonly
declare void @f_readnone() readnone

define void @test_0(i32* %x) {
; FunctionAttrs must not infer readonly / readnone for %x

; CHECK-LABEL: define void @test_0(i32* %x) #2 {
 entry:
 ; CHECK: call void @f_readonly() [ "foo"(i32* %x) ]
  call void @f_readonly() [ "foo"(i32* %x) ]
  ret void
}

define void @test_1(i32* %x) {
; FunctionAttrs must not infer readonly / readnone for %x

; CHECK-LABEL: define void @test_1(i32* %x) #2 {
 entry:
 ; CHECK: call void @f_readnone() [ "foo"(i32* %x) ]
  call void @f_readnone() [ "foo"(i32* %x) ]
  ret void
}

define void @test_2(i32* %x) {
; The "deopt" operand bundle does not capture or write to %x.

; CHECK-LABEL: define void @test_2(i32* nocapture readonly %x)
 entry:
  call void @f_readonly() [ "deopt"(i32* %x) ]
  ret void
}

; CHECK: attributes #2 = { nofree }