File: fallback-mayalias.ll

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (22 lines) | stat: -rw-r--r-- 717 bytes parent folder | download | duplicates (10) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
 
; RUN: opt -aa-pipeline=basic-aa -passes=aa-eval -print-all-alias-modref-info -disable-output < %s 2>&1 | FileCheck %s

; Check that BasicAA falls back to MayAlias (instead of PartialAlias) when none
; of its little tricks are applicable.

; CHECK: MayAlias: float* %arrayidxA, float* %arrayidxB

define void @fallback_mayalias(ptr noalias nocapture %C, i64 %i, i64 %j) local_unnamed_addr {
entry:
  %cmp = icmp ne i64 %i, %j
  call void @llvm.assume(i1 %cmp)

  %arrayidxA = getelementptr inbounds float, ptr %C, i64 %i
  store float undef, ptr %arrayidxA, align 4

  %arrayidxB = getelementptr inbounds float, ptr %C, i64 %j
  store float undef, ptr %arrayidxB, align 4

  ret void
}

declare void @llvm.assume(i1)