mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-21 18:29:45 +00:00
7c9c6ed761
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
16 lines
601 B
LLVM
16 lines
601 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* 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)
|