llvm-6502/test/Instrumentation/AddressSanitizer/instrument_global.ll
David Blaikie 5a70dd1d82 [opaque pointer type] Add textual IR support for explicit type parameter to gep operator
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
2015-03-13 18:20:45 +00:00

83 lines
2.8 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, i32* getelementptr inbounds ([10 x i32], [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, i32* getelementptr inbounds ([10 x i32], [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, i32* getelementptr inbounds ([10 x i32], [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, i32* getelementptr inbounds ([10 x i32], [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, i32* getelementptr inbounds ([10 x i32], [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.globals = !{!0}
!0 = !{[10 x i32]* @GlobDy, null, null, i1 true, i1 false}
; 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