mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-28 04:33:05 +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
42 lines
1.3 KiB
LLVM
42 lines
1.3 KiB
LLVM
; Test non-default shadow mapping scale and offset.
|
|
;
|
|
; RUN: opt < %s -asan -asan-mapping-scale=2 -asan-mapping-offset-log=0 -S | FileCheck %s
|
|
|
|
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"
|
|
target triple = "x86_64-unknown-linux-gnu"
|
|
|
|
; Test that ASan tells scale and offset to runtime.
|
|
; CHECK: @__asan_mapping_offset = linkonce_odr constant i64 0
|
|
; CHECK: @__asan_mapping_scale = linkonce_odr constant i64 2
|
|
|
|
define i32 @test_load(i32* %a) sanitize_address {
|
|
; CHECK: @test_load
|
|
; CHECK-NOT: load
|
|
; CHECK: %[[LOAD_ADDR:[^ ]*]] = ptrtoint i32* %a to i64
|
|
; CHECK: lshr i64 %[[LOAD_ADDR]], 2
|
|
|
|
; No need in shift for zero offset.
|
|
; CHECK-NOT: or i64
|
|
|
|
; CHECK: %[[LOAD_SHADOW_PTR:[^ ]*]] = inttoptr
|
|
; CHECK: %[[LOAD_SHADOW:[^ ]*]] = load i8* %[[LOAD_SHADOW_PTR]]
|
|
; CHECK: icmp ne i8
|
|
; CHECK: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}
|
|
|
|
; No need in slow path for i32 and mapping scale equal to 2.
|
|
; CHECK-NOT: and i64 %[[LOAD_ADDR]]
|
|
;
|
|
; The crash block reports the error.
|
|
; CHECK: call void @__asan_report_load4(i64 %[[LOAD_ADDR]])
|
|
; CHECK: unreachable
|
|
;
|
|
; The actual load.
|
|
; CHECK: %tmp1 = load i32* %a
|
|
; CHECK: ret i32 %tmp1
|
|
|
|
entry:
|
|
%tmp1 = load i32* %a
|
|
ret i32 %tmp1
|
|
}
|
|
|