mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-13 20:32:21 +00:00
737c9f6005
r201608 made llvm corretly handle private globals with MachO. r201622 fixed a bug in it and r201624 and r201625 were changes for using private linkage, assuming that llvm would do the right thing. They all got reverted because r201608 introduced a crash in LTO. This patch includes a fix for that. The issue was that TargetLoweringObjectFile now has to be initialized before we can mangle names of private globals. This is trivially true during the normal codegen pipeline (the asm printer does it), but LTO has to do it manually. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201700 91177308-0d34-0410-b5e6-96231b3b80d8
83 lines
2.7 KiB
LLVM
83 lines
2.7 KiB
LLVM
; RUN: opt < %s -asan -asan-module -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"
|
|
@xxx = global i32 0, align 4
|
|
|
|
; If a global is present, __asan_[un]register_globals should be called from
|
|
; module ctor/dtor
|
|
|
|
; CHECK: llvm.global_ctors
|
|
; CHECK: @__asan_gen_ = private constant [8 x i8] c"<stdin>\00", align 1
|
|
; CHECK: llvm.global_dtors
|
|
|
|
; Test that we don't instrument global arrays with static initializer
|
|
; indexed with constants in-bounds. But instrument all other cases.
|
|
|
|
@GlobSt = global [10 x i32] zeroinitializer, align 16 ; static initializer
|
|
@GlobDy = global [10 x i32] zeroinitializer, align 16 ; dynamic initializer
|
|
@GlobEx = external global [10 x i32] , align 16 ; extern initializer
|
|
|
|
; GlobSt is declared here, and has static initializer -- ok to optimize.
|
|
define i32 @AccessGlobSt_0_2() sanitize_address {
|
|
entry:
|
|
%0 = load i32* getelementptr inbounds ([10 x i32]* @GlobSt, i64 0, i64 2), align 8
|
|
ret i32 %0
|
|
; CHECK-LABEL: define i32 @AccessGlobSt_0_2
|
|
; CHECK-NOT: __asan_report
|
|
; CHECK: ret i32 %0
|
|
}
|
|
|
|
; GlobSt is accessed out of bounds -- can't optimize
|
|
define i32 @AccessGlobSt_0_12() sanitize_address {
|
|
entry:
|
|
%0 = load i32* getelementptr inbounds ([10 x i32]* @GlobSt, i64 0, i64 12), align 8
|
|
ret i32 %0
|
|
; CHECK-LABEL: define i32 @AccessGlobSt_0_12
|
|
; CHECK: __asan_report
|
|
; CHECK: ret i32
|
|
}
|
|
|
|
; GlobSt is accessed with Gep that has non-0 first index -- can't optimize.
|
|
define i32 @AccessGlobSt_1_2() sanitize_address {
|
|
entry:
|
|
%0 = load i32* getelementptr inbounds ([10 x i32]* @GlobSt, i64 1, i64 2), align 8
|
|
ret i32 %0
|
|
; CHECK-LABEL: define i32 @AccessGlobSt_1_2
|
|
; CHECK: __asan_report
|
|
; CHECK: ret i32
|
|
}
|
|
|
|
; GlobDy is declared with dynamic initializer -- can't optimize.
|
|
define i32 @AccessGlobDy_0_2() sanitize_address {
|
|
entry:
|
|
%0 = load i32* getelementptr inbounds ([10 x i32]* @GlobDy, i64 0, i64 2), align 8
|
|
ret i32 %0
|
|
; CHECK-LABEL: define i32 @AccessGlobDy_0_2
|
|
; CHECK: __asan_report
|
|
; CHECK: ret i32
|
|
}
|
|
|
|
; GlobEx is an external global -- can't optimize.
|
|
define i32 @AccessGlobEx_0_2() sanitize_address {
|
|
entry:
|
|
%0 = load i32* getelementptr inbounds ([10 x i32]* @GlobEx, i64 0, i64 2), align 8
|
|
ret i32 %0
|
|
; CHECK-LABEL: define i32 @AccessGlobEx_0_2
|
|
; CHECK: __asan_report
|
|
; CHECK: ret i32
|
|
}
|
|
|
|
|
|
!llvm.asan.dynamically_initialized_globals = !{!0}
|
|
!0 = metadata !{[10 x i32]* @GlobDy}
|
|
|
|
; CHECK-LABEL: define internal void @asan.module_ctor
|
|
; CHECK-NOT: ret
|
|
; CHECK: call void @__asan_register_globals
|
|
; CHECK: ret
|
|
|
|
; CHECK-LABEL: define internal void @asan.module_dtor
|
|
; CHECK-NOT: ret
|
|
; CHECK: call void @__asan_unregister_globals
|
|
; CHECK: ret
|