mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-14 11:32:34 +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
27 lines
1.1 KiB
LLVM
27 lines
1.1 KiB
LLVM
; RUN: opt < %s -basicaa -gvn -tsan -S | FileCheck %s
|
|
; TSAN conflicts with load widening. Make sure the load widening is off with -tsan.
|
|
|
|
; 32-bit little endian target.
|
|
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128-n8:16:32"
|
|
|
|
%struct_of_8_bytes_4_aligned = type { i32, i8, i8, i8, i8}
|
|
|
|
@f = global %struct_of_8_bytes_4_aligned zeroinitializer, align 4
|
|
|
|
; Accessing bytes 4 and 6, not ok to widen to i32 if sanitize_thread is set.
|
|
|
|
define i32 @test_widening_bad(i8* %P) nounwind ssp noredzone sanitize_thread {
|
|
entry:
|
|
%tmp = load i8, i8* getelementptr inbounds (%struct_of_8_bytes_4_aligned, %struct_of_8_bytes_4_aligned* @f, i64 0, i32 1), align 4
|
|
%conv = zext i8 %tmp to i32
|
|
%tmp1 = load i8, i8* getelementptr inbounds (%struct_of_8_bytes_4_aligned, %struct_of_8_bytes_4_aligned* @f, i64 0, i32 3), align 1
|
|
%conv2 = zext i8 %tmp1 to i32
|
|
%add = add nsw i32 %conv, %conv2
|
|
ret i32 %add
|
|
; CHECK: @test_widening_bad
|
|
; CHECK: call void @__tsan_read1
|
|
; CHECK: call void @__tsan_read1
|
|
; CHECK-NOT: call void @__tsan_read4
|
|
; CHECK: ret i32
|
|
}
|