File: ptrmask.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 (29 lines) | stat: -rw-r--r-- 1,187 bytes parent folder | download | duplicates (8)
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
; RUN: opt -basic-aa -aa-eval -print-no-aliases -disable-output %s 2>&1 | FileCheck %s

%struct = type <{ [20 x i64] }>

; CHECK-LABEL: Function: test_noalias: 4 pointers, 1 call sites
; CHECK-NEXT:  NoAlias:	%struct* %ptr1, i64* %ptr2
; CHECK-NEXT:  NoAlias:	%struct* %addr.ptr, i64* %ptr2
; CHECK-NEXT:  NoAlias:	i64* %gep, i64* %ptr2
define void @test_noalias(%struct* noalias %ptr1, i64* %ptr2, i64 %offset) {
entry:
  %addr.ptr = call %struct* @llvm.ptrmask.p0s_struct.p0s.struct.i64(%struct* %ptr1, i64 72057594037927928)
  store i64 10, i64* %ptr2
  %gep = getelementptr inbounds %struct, %struct* %addr.ptr, i64 0, i32 0, i64 %offset
  store i64 1, i64* %gep, align 8
  ret void
}

; CHECK-NEXT: Function: test_alias: 4 pointers, 1 call sites
; CHECK-NOT: NoAlias
define void @test_alias(%struct* %ptr1, i64* %ptr2, i64 %offset) {
entry:
  %addr.ptr = call %struct* @llvm.ptrmask.p0s_struct.p0s.struct.i64(%struct* %ptr1, i64 72057594037927928)
  store i64 10, i64* %ptr2
  %gep = getelementptr inbounds %struct, %struct* %addr.ptr, i64 0, i32 0, i64 %offset
  store i64 1, i64* %gep, align 8
  ret void
}

declare %struct* @llvm.ptrmask.p0s_struct.p0s.struct.i64(%struct*, i64)