mirror of
https://github.com/RPCSX/llvm.git
synced 2024-12-13 14:46:53 +00:00
5a70dd1d82
Similar to gep (r230786) and load (r230794) changes.
Similar migration script can be used to update test cases, which
successfully migrated all of LLVM and Polly, but about 4 test cases
needed manually changes in Clang.
(this script will read the contents of stdin and massage it into stdout
- wrap it in the 'apply.sh' script shown in previous commits + xargs to
apply it over a large set of test cases)
import fileinput
import sys
import re
rep = re.compile(r"(getelementptr(?:\s+inbounds)?\s*\()((<\d*\s+x\s+)?([^@]*?)(|\s*addrspace\(\d+\))\s*\*(?(3)>)\s*)(?=$|%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|zeroinitializer|<|\[\[[a-zA-Z]|\{\{)", re.MULTILINE | re.DOTALL)
def conv(match):
line = match.group(1)
line += match.group(4)
line += ", "
line += match.group(2)
return line
line = sys.stdin.read()
off = 0
for match in re.finditer(rep, line):
sys.stdout.write(line[off:match.start()])
sys.stdout.write(conv(match))
off = match.end()
sys.stdout.write(line[off:])
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232184 91177308-0d34-0410-b5e6-96231b3b80d8
16 lines
606 B
LLVM
16 lines
606 B
LLVM
; Test to make sure malloc's bitcast does not block detection of a store
|
|
; to aliased memory; GVN should not optimize away the load in this program.
|
|
; RUN: opt < %s -gvn -S | FileCheck %s
|
|
|
|
define i64 @test() {
|
|
%1 = tail call i8* @malloc(i64 mul (i64 4, i64 ptrtoint (i64* getelementptr (i64, i64* null, i64 1) to i64))) ; <i8*> [#uses=2]
|
|
store i8 42, i8* %1
|
|
%X = bitcast i8* %1 to i64* ; <i64*> [#uses=1]
|
|
%Y = load i64, i64* %X ; <i64> [#uses=1]
|
|
ret i64 %Y
|
|
; CHECK: %Y = load i64, i64* %X
|
|
; CHECK: ret i64 %Y
|
|
}
|
|
|
|
declare noalias i8* @malloc(i64)
|