llvm-6502/test/Analysis/CFLAliasAnalysis/multilevel-combine.ll
David Blaikie 7c9c6ed761 [opaque pointer type] Add textual IR support for explicit type parameter to load instruction
Essentially the same as the GEP change in r230786.

A similar migration script can be used to update test cases, though a few more
test case improvements/changes were required this time around: (r229269-r229278)

import fileinput
import sys
import re

pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)")

for line in sys.stdin:
  sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line))

Reviewers: rafael, dexonsmith, grosser

Differential Revision: http://reviews.llvm.org/D7649

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230794 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 21:17:42 +00:00

32 lines
728 B
LLVM

; This testcase ensures that CFL AA responds conservatively when we union
; groups of pointers together through ternary/conditional operations
; Derived from:
; void foo(bool c) {
; char a, b;
; char *m = c ? &a : &b;
; *m;
; }
;
; RUN: opt < %s -cfl-aa -aa-eval -print-may-aliases -disable-output 2>&1 | FileCheck %s
%T = type { i32, [10 x i8] }
; CHECK: Function: test
define void @test(i1 %C) {
; CHECK: 10 Total Alias Queries Performed
; CHECK: 4 no alias responses
%M = alloca %T*, align 8 ; NoAlias with %A, %B, %MS, %AP
%A = alloca %T, align 8
%B = alloca %T, align 8
%MS = select i1 %C, %T* %B, %T* %A
store %T* %MS, %T** %M
%AP = load %T*, %T** %M ; PartialAlias with %A, %B
ret void
}