llvm-6502/test/Analysis/BasicAA/2014-03-18-Maxlookup-reached.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

37 lines
1.1 KiB
LLVM

; RUN: opt < %s -basicaa -gvn -S | FileCheck %s
; PR15967
; BasicAA claims no alias when there is (due to a problem when the MaxLookup
; limit was reached).
target datalayout = "e"
%struct.foo = type { i32, i32 }
define i32 @main() {
%t = alloca %struct.foo, align 4
%1 = getelementptr inbounds %struct.foo, %struct.foo* %t, i32 0, i32 0
store i32 1, i32* %1, align 4
%2 = getelementptr inbounds %struct.foo, %struct.foo* %t, i64 1
%3 = bitcast %struct.foo* %2 to i8*
%4 = getelementptr inbounds i8, i8* %3, i32 -1
store i8 0, i8* %4
%5 = getelementptr inbounds i8, i8* %4, i32 -1
store i8 0, i8* %5
%6 = getelementptr inbounds i8, i8* %5, i32 -1
store i8 0, i8* %6
%7 = getelementptr inbounds i8, i8* %6, i32 -1
store i8 0, i8* %7
%8 = getelementptr inbounds i8, i8* %7, i32 -1
store i8 0, i8* %8
%9 = getelementptr inbounds i8, i8* %8, i32 -1
store i8 0, i8* %9
%10 = getelementptr inbounds i8, i8* %9, i32 -1
store i8 0, i8* %10
%11 = getelementptr inbounds i8, i8* %10, i32 -1
store i8 0, i8* %11
%12 = load i32, i32* %1, align 4
ret i32 %12
; CHECK: ret i32 %12
}