File: function-attrs.ll

package info (click to toggle)
llvm-toolchain-3.9 1%3A3.9.1-8
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 441,060 kB
  • ctags: 428,777
  • sloc: cpp: 2,546,577; ansic: 538,318; asm: 119,677; objc: 103,316; python: 102,148; sh: 27,847; pascal: 5,626; ml: 5,510; perl: 5,293; lisp: 4,801; makefile: 2,177; xml: 686; cs: 362; php: 212; csh: 117
file content (33 lines) | stat: -rw-r--r-- 860 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
; 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) {
 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) {
 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
}