mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-25 00:29:20 +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
60 lines
1.8 KiB
LLVM
60 lines
1.8 KiB
LLVM
; RUN: opt < %s -tsan -S | FileCheck %s
|
|
; Check that tsan does not instrument reads from constant globals.
|
|
|
|
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
|
|
|
|
@const_global = external constant i32
|
|
define i32 @read_from_const_global() nounwind uwtable sanitize_thread readnone {
|
|
entry:
|
|
%0 = load i32, i32* @const_global, align 4
|
|
ret i32 %0
|
|
}
|
|
; CHECK: define i32 @read_from_const_global
|
|
; CHECK-NOT: __tsan
|
|
; CHECK: ret i32
|
|
|
|
@non_const_global = global i32 0, align 4
|
|
define i32 @read_from_non_const_global() nounwind uwtable sanitize_thread readonly {
|
|
entry:
|
|
%0 = load i32, i32* @non_const_global, align 4
|
|
ret i32 %0
|
|
}
|
|
|
|
; CHECK: define i32 @read_from_non_const_global
|
|
; CHECK: __tsan_read
|
|
; CHECK: ret i32
|
|
|
|
@const_global_array = external constant [10 x i32]
|
|
define i32 @read_from_const_global_array(i32 %idx) nounwind uwtable sanitize_thread readnone {
|
|
entry:
|
|
%idxprom = sext i32 %idx to i64
|
|
%arrayidx = getelementptr inbounds [10 x i32], [10 x i32]* @const_global_array, i64 0, i64 %idxprom
|
|
%0 = load i32, i32* %arrayidx, align 4
|
|
ret i32 %0
|
|
}
|
|
|
|
; CHECK: define i32 @read_from_const_global_array
|
|
; CHECK-NOT: __tsan
|
|
; CHECK: ret i32
|
|
|
|
%struct.Foo = type { i32 (...)** }
|
|
define void @call_virtual_func(%struct.Foo* %f) uwtable sanitize_thread {
|
|
entry:
|
|
%0 = bitcast %struct.Foo* %f to void (%struct.Foo*)***
|
|
%vtable = load void (%struct.Foo*)**, void (%struct.Foo*)*** %0, align 8, !tbaa !2
|
|
%1 = load void (%struct.Foo*)*, void (%struct.Foo*)** %vtable, align 8
|
|
call void %1(%struct.Foo* %f)
|
|
ret void
|
|
}
|
|
|
|
; CHECK: define void @call_virtual_func
|
|
; CHECK: __tsan_vptr_read
|
|
; CHECK: = load
|
|
; CHECK-NOT: __tsan_read
|
|
; CHECK: = load
|
|
; CHECK: ret void
|
|
|
|
!0 = !{!"Simple C/C++ TBAA", null}
|
|
!1 = !{!"vtable pointer", !0}
|
|
!2 = !{!1, !1, i64 0}
|