c5e7f56249
Add "memtag" sanitizer that detects and mitigates stack memory issues using armv8.5 Memory Tagging Extension. It is similar in principle to HWASan, which is a software implementation of the same idea, but there are enough differencies to warrant a new sanitizer type IMHO. It is also expected to have very different performance properties. The new sanitizer does not have a runtime library (it may grow one later, along with a "debugging" mode). Similar to SafeStack and StackProtector, the instrumentation pass (in a follow up change) will be inserted in all cases, but will only affect functions marked with the new sanitize_memtag attribute. Reviewers: pcc, hctim, vitalybuka, ostannard Subscribers: srhines, mehdi_amini, javed.absar, kristof.beyls, hiraditya, cryptoad, steven_wu, dexonsmith, cfe-commits, llvm-commits Tags: #clang, #llvm Differential Revision: https://reviews.llvm.org/D64169 llvm-svn: 366123
418 lines
8.1 KiB
LLVM
418 lines
8.1 KiB
LLVM
; RUN: llvm-as < %s | llvm-dis | FileCheck %s
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; RUN: verify-uselistorder < %s
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; PR12696
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define void @f1(i8 zeroext)
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; CHECK: define void @f1(i8 zeroext)
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{
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ret void;
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}
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define void @f2(i8 signext)
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; CHECK: define void @f2(i8 signext)
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{
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ret void;
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}
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define void @f3() noreturn
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; CHECK: define void @f3() #0
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{
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ret void;
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}
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define void @f4(i8 inreg)
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; CHECK: define void @f4(i8 inreg)
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{
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ret void;
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}
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define void @f5(i8* sret)
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; CHECK: define void @f5(i8* sret)
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{
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ret void;
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}
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define void @f6() nounwind
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; CHECK: define void @f6() #1
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{
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ret void;
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}
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define void @f7(i8* noalias)
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; CHECK: define void @f7(i8* noalias)
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{
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ret void;
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}
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define void @f8(i8* byval)
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; CHECK: define void @f8(i8* byval(i8))
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{
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ret void;
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}
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define void @f9(i8* nest)
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; CHECK: define void @f9(i8* nest)
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{
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ret void;
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}
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define void @f10() readnone
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; CHECK: define void @f10() #2
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{
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ret void;
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}
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define void @f11() readonly
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; CHECK: define void @f11() #3
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{
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ret void;
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}
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define void @f12() noinline
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; CHECK: define void @f12() #4
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{
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ret void;
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}
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define void @f13() alwaysinline
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; CHECK: define void @f13() #5
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{
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ret void;
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}
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define void @f14() optsize
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; CHECK: define void @f14() #6
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{
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ret void;
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}
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define void @f15() ssp
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; CHECK: define void @f15() #7
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{
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ret void;
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}
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define void @f16() sspreq
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; CHECK: define void @f16() #8
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{
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ret void;
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}
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define void @f17(i8 align 4)
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; CHECK: define void @f17(i8 align 4)
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{
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ret void;
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}
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define void @f18(i8* nocapture)
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; CHECK: define void @f18(i8* nocapture)
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{
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ret void;
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}
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define void @f19() noredzone
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; CHECK: define void @f19() #9
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{
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ret void;
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}
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define void @f20() noimplicitfloat
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; CHECK: define void @f20() #10
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{
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ret void;
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}
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define void @f21() naked
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; CHECK: define void @f21() #11
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{
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ret void;
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}
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define void @f22() inlinehint
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; CHECK: define void @f22() #12
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{
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ret void;
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}
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define void @f23() alignstack(4)
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; CHECK: define void @f23() #13
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{
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ret void;
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}
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define void @f24() returns_twice
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; CHECK: define void @f24() #14
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{
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ret void;
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}
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define void @f25() uwtable
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; CHECK: define void @f25() #15
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{
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ret void;
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}
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define void @f26() nonlazybind
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; CHECK: define void @f26() #16
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{
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ret void;
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}
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define void @f27() sanitize_address
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; CHECK: define void @f27() #17
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{
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ret void;
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}
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define void @f28() sanitize_thread
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; CHECK: define void @f28() #18
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{
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ret void;
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}
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define void @f29() sanitize_memory
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; CHECK: define void @f29() #19
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{
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ret void;
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}
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define void @f30() "cpu"="cortex-a8"
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; CHECK: define void @f30() #20
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{
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ret void;
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}
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define i8 @f31(i8 returned %A)
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; CHECK: define i8 @f31(i8 returned %A)
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{
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ret i8 %A;
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}
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define void @f32() sspstrong
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; CHECK: define void @f32() #21
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{
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ret void;
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}
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define void @f33() minsize
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; CHECK: define void @f33() #22
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{
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ret void;
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}
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declare void @nobuiltin()
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define void @f34()
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; CHECK: define void @f34()
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{
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call void @nobuiltin() nobuiltin
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; CHECK: call void @nobuiltin() #40
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ret void;
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}
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define void @f35() optnone noinline
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; CHECK: define void @f35() #23
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{
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ret void;
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}
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define void @f36(i8* inalloca) {
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; CHECK: define void @f36(i8* inalloca) {
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ret void
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}
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define nonnull i8* @f37(i8* nonnull %a) {
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; CHECK: define nonnull i8* @f37(i8* nonnull %a) {
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ret i8* %a
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}
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define void @f38() unnamed_addr jumptable {
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; CHECK: define void @f38() unnamed_addr #24
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call void bitcast (void (i8*)* @f36 to void ()*)()
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unreachable
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}
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define dereferenceable(2) i8* @f39(i8* dereferenceable(1) %a) {
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; CHECK: define dereferenceable(2) i8* @f39(i8* dereferenceable(1) %a) {
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ret i8* %a
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}
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define dereferenceable(18446744073709551606) i8* @f40(i8* dereferenceable(18446744073709551615) %a) {
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; CHECK: define dereferenceable(18446744073709551606) i8* @f40(i8* dereferenceable(18446744073709551615) %a) {
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ret i8* %a
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}
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define void @f41(i8* align 32, double* align 64) {
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; CHECK: define void @f41(i8* align 32, double* align 64) {
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ret void
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}
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; CHECK: define dereferenceable_or_null(8) i8* @f42(i8* dereferenceable_or_null(8) %foo)
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define dereferenceable_or_null(8) i8* @f42(i8* dereferenceable_or_null(8) %foo) {
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entry:
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ret i8* %foo
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}
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; CHECK: define void @f43() #25
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define void @f43() convergent {
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ret void
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}
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define void @f44() argmemonly
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; CHECK: define void @f44() #26
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{
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ret void;
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}
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; CHECK: define "string_attribute" void @f45(i32 "string_attribute")
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define "string_attribute" void @f45(i32 "string_attribute") {
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ret void
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}
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; CHECK: define "string_attribute_with_value"="value" void @f46(i32 "string_attribute_with_value"="value")
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define "string_attribute_with_value"="value" void @f46(i32 "string_attribute_with_value"="value") {
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ret void
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}
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; CHECK: define void @f47() #27
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define void @f47() norecurse {
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ret void
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}
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; CHECK: define void @f48() #28
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define void @f48() inaccessiblememonly {
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ret void
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}
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; CHECK: define void @f49() #29
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define void @f49() inaccessiblemem_or_argmemonly {
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ret void
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}
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; CHECK: define void @f50(i8* swiftself)
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define void @f50(i8* swiftself)
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{
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ret void;
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}
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; CHECK: define i32 @f51(i8** swifterror)
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define i32 @f51(i8** swifterror)
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{
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ret i32 0
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}
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; CHECK: define i32 @f52(i32, i8** swifterror)
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define i32 @f52(i32, i8** swifterror)
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{
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ret i32 0
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}
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%swift_error = type {i64, i8}
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declare float @foo(%swift_error** swifterror %error_ptr_ref)
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; CHECK: define float @f53
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; CHECK: alloca swifterror
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define float @f53(i8* %error_ref) {
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entry:
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%error_ptr_ref = alloca swifterror %swift_error*
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store %swift_error* null, %swift_error** %error_ptr_ref
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%call = call float @foo(%swift_error** swifterror %error_ptr_ref)
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ret float 1.0
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}
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; CHECK: define i8* @f54(i32) #30
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define i8* @f54(i32) allocsize(0) {
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ret i8* null
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}
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; CHECK: define i8* @f55(i32, i32) #31
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define i8* @f55(i32, i32) allocsize(0, 1) {
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ret i8* null
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}
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; CHECK: define void @f56() #32
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define void @f56() writeonly
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{
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ret void
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}
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; CHECK: define void @f57() #33
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define void @f57() speculatable {
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ret void
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}
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; CHECK: define void @f58() #34
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define void @f58() sanitize_hwaddress
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{
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ret void;
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}
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; CHECK: define void @f59() #35
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define void @f59() shadowcallstack
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{
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ret void
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}
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; CHECK: define void @f60() #36
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define void @f60() willreturn
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{
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ret void
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}
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; CHECK: define void @f61() #37
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define void @f61() nofree {
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ret void
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}
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; CHECK: define void @f62() #38
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define void @f62() nosync
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{
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ret void
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}
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; CHECK: define void @f63() #39
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define void @f63() sanitize_memtag
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{
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ret void;
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}
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; CHECK: attributes #0 = { noreturn }
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; CHECK: attributes #1 = { nounwind }
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; CHECK: attributes #2 = { readnone }
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; CHECK: attributes #3 = { readonly }
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; CHECK: attributes #4 = { noinline }
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; CHECK: attributes #5 = { alwaysinline }
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; CHECK: attributes #6 = { optsize }
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; CHECK: attributes #7 = { ssp }
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; CHECK: attributes #8 = { sspreq }
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; CHECK: attributes #9 = { noredzone }
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; CHECK: attributes #10 = { noimplicitfloat }
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; CHECK: attributes #11 = { naked }
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; CHECK: attributes #12 = { inlinehint }
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; CHECK: attributes #13 = { alignstack=4 }
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; CHECK: attributes #14 = { returns_twice }
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; CHECK: attributes #15 = { uwtable }
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; CHECK: attributes #16 = { nonlazybind }
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; CHECK: attributes #17 = { sanitize_address }
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; CHECK: attributes #18 = { sanitize_thread }
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; CHECK: attributes #19 = { sanitize_memory }
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; CHECK: attributes #20 = { "cpu"="cortex-a8" }
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; CHECK: attributes #21 = { sspstrong }
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; CHECK: attributes #22 = { minsize }
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; CHECK: attributes #23 = { noinline optnone }
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; CHECK: attributes #24 = { jumptable }
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; CHECK: attributes #25 = { convergent }
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; CHECK: attributes #26 = { argmemonly }
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; CHECK: attributes #27 = { norecurse }
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; CHECK: attributes #28 = { inaccessiblememonly }
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; CHECK: attributes #29 = { inaccessiblemem_or_argmemonly }
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; CHECK: attributes #30 = { allocsize(0) }
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; CHECK: attributes #31 = { allocsize(0,1) }
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; CHECK: attributes #32 = { writeonly }
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; CHECK: attributes #33 = { speculatable }
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; CHECK: attributes #34 = { sanitize_hwaddress }
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; CHECK: attributes #35 = { shadowcallstack }
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; CHECK: attributes #36 = { willreturn }
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; CHECK: attributes #37 = { nofree }
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; CHECK: attributes #38 = { nosync }
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; CHECK: attributes #39 = { sanitize_memtag }
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; CHECK: attributes #40 = { nobuiltin }
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