mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-21 00:32:23 +00:00
8eec41fc77
These are two related changes (one in llvm, one in clang). LLVM: - rename address_safety => sanitize_address (the enum value is the same, so we preserve binary compatibility with old bitcode) - rename thread_safety => sanitize_thread - rename no_uninitialized_checks -> sanitize_memory CLANG: - add __attribute__((no_sanitize_address)) as a synonym for __attribute__((no_address_safety_analysis)) - add __attribute__((no_sanitize_thread)) - add __attribute__((no_sanitize_memory)) for S in address thread memory If -fsanitize=S is present and __attribute__((no_sanitize_S)) is not set llvm attribute sanitize_S git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176075 91177308-0d34-0410-b5e6-96231b3b80d8
27 lines
1.0 KiB
LLVM
27 lines
1.0 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* getelementptr inbounds (%struct_of_8_bytes_4_aligned* @f, i64 0, i32 1), align 4
|
|
%conv = zext i8 %tmp to i32
|
|
%tmp1 = load i8* getelementptr inbounds (%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
|
|
}
|