File: mmra-allowed.ll

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,998,520 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (31 lines) | stat: -rw-r--r-- 1,207 bytes parent folder | download | duplicates (7) 
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
 
; RUN: opt -S -passes=verify < %s

; This file contains MMRA metadata that is okay and should pass the verifier.

define void @test(ptr %ptr) {
  %ld = load i8, ptr %ptr,                                !mmra !0
  store i8 1, ptr %ptr,                                   !mmra !1
  call void @writesMem(),                                 !mmra !2
  call void @readsMem(),                                  !mmra !2
  fence release,                                          !mmra !0
  %rmw.1 = atomicrmw add ptr %ptr, i8 0 release,          !mmra !0
  %rmw.2 = atomicrmw add ptr %ptr, i8 0 acquire,          !mmra !0
  %pair = cmpxchg ptr %ptr, i8 0, i8 1 acquire acquire,   !mmra !1
  %ld.atomic = load atomic i8, ptr %ptr acquire, align 4, !mmra !1
  store atomic i8 1, ptr %ptr release, align 4,           !mmra !2
  %mld = call <2 x i64> @llvm.vp.load.v2i64.p0(ptr undef, <2 x i1> undef, i32 undef), !mmra !2
  ; TODO: barrier
  ret void
}

declare <2 x i64> @llvm.vp.load.v2i64.p0(ptr, <2 x i1>, i32)

declare void @readsMem(ptr) #0
declare void @writesMem(ptr) #1

attributes #0 = { memory(read) }
attributes #1 = { memory(write) }

!0 = !{!"scope", !"workgroup"}
!1 = !{!"as", !"private"}
!2 = !{!0, !1}