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https://github.com/c64scene-ar/llvm-6502.git
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1ef70ff39b
Now that `Metadata` is typeless, reflect that in the assembly. These
are the matching assembly changes for the metadata/value split in
r223802.
- Only use the `metadata` type when referencing metadata from a call
intrinsic -- i.e., only when it's used as a `Value`.
- Stop pretending that `ValueAsMetadata` is wrapped in an `MDNode`
when referencing it from call intrinsics.
So, assembly like this:
define @foo(i32 %v) {
call void @llvm.foo(metadata !{i32 %v}, metadata !0)
call void @llvm.foo(metadata !{i32 7}, metadata !0)
call void @llvm.foo(metadata !1, metadata !0)
call void @llvm.foo(metadata !3, metadata !0)
call void @llvm.foo(metadata !{metadata !3}, metadata !0)
ret void, !bar !2
}
!0 = metadata !{metadata !2}
!1 = metadata !{i32* @global}
!2 = metadata !{metadata !3}
!3 = metadata !{}
turns into this:
define @foo(i32 %v) {
call void @llvm.foo(metadata i32 %v, metadata !0)
call void @llvm.foo(metadata i32 7, metadata !0)
call void @llvm.foo(metadata i32* @global, metadata !0)
call void @llvm.foo(metadata !3, metadata !0)
call void @llvm.foo(metadata !{!3}, metadata !0)
ret void, !bar !2
}
!0 = !{!2}
!1 = !{i32* @global}
!2 = !{!3}
!3 = !{}
I wrote an upgrade script that handled almost all of the tests in llvm
and many of the tests in cfe (even handling many `CHECK` lines). I've
attached it (or will attach it in a moment if you're speedy) to PR21532
to help everyone update their out-of-tree testcases.
This is part of PR21532.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224257 91177308-0d34-0410-b5e6-96231b3b80d8
53 lines
2.5 KiB
LLVM
53 lines
2.5 KiB
LLVM
; ASan shouldn't instrument code added by UBSan.
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; RUN: opt < %s -asan -asan-module -S | FileCheck %s
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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"
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target triple = "x86_64-unknown-linux-gnu"
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%struct.A = type { i32 (...)** }
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declare void @__ubsan_handle_dynamic_type_cache_miss(i8*, i64, i64) uwtable
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@__ubsan_vptr_type_cache = external global [128 x i64]
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@.src = private unnamed_addr constant [19 x i8] c"tmp/ubsan/vptr.cpp\00", align 1
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@0 = private unnamed_addr constant { i16, i16, [4 x i8] } { i16 -1, i16 0, [4 x i8] c"'A'\00" }
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@_ZTI1A = external constant i8*
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@1 = private unnamed_addr global { { [19 x i8]*, i32, i32 }, { i16, i16, [4 x i8] }*, i8*, i8 } { { [19 x i8]*, i32, i32 } { [19 x i8]* @.src, i32 2, i32 18 }, { i16, i16, [4 x i8] }* @0, i8* bitcast (i8** @_ZTI1A to i8*), i8 4 }
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define void @_Z3BarP1A(%struct.A* %a) uwtable sanitize_address {
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; CHECK-LABEL: define void @_Z3BarP1A
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entry:
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%0 = bitcast %struct.A* %a to void (%struct.A*)***
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%vtable = load void (%struct.A*)*** %0, align 8
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; CHECK: __asan_report_load8
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%1 = load void (%struct.A*)** %vtable, align 8
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; CHECK: __asan_report_load8
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%2 = ptrtoint void (%struct.A*)** %vtable to i64
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%3 = xor i64 %2, -303164226014115343, !nosanitize !0
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%4 = mul i64 %3, -7070675565921424023, !nosanitize !0
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%5 = lshr i64 %4, 47, !nosanitize !0
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%6 = xor i64 %4, %2, !nosanitize !0
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%7 = xor i64 %6, %5, !nosanitize !0
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%8 = mul i64 %7, -7070675565921424023, !nosanitize !0
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%9 = lshr i64 %8, 47, !nosanitize !0
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%10 = xor i64 %9, %8, !nosanitize !0
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%11 = mul i64 %10, -7070675565921424023, !nosanitize !0
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%12 = and i64 %11, 127, !nosanitize !0
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%13 = getelementptr inbounds [128 x i64]* @__ubsan_vptr_type_cache, i64 0, i64 %12, !nosanitize !0
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; CHECK-NOT: __asan_report_load8
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%14 = load i64* %13, align 8, !nosanitize !0
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%15 = icmp eq i64 %14, %11, !nosanitize !0
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br i1 %15, label %cont, label %handler.dynamic_type_cache_miss, !nosanitize !0
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handler.dynamic_type_cache_miss: ; preds = %entry
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%16 = ptrtoint %struct.A* %a to i64, !nosanitize !0
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tail call void @__ubsan_handle_dynamic_type_cache_miss(i8* bitcast ({ { [19 x i8]*, i32, i32 }, { i16, i16, [4 x i8] }*, i8*, i8 }* @1 to i8*), i64 %16, i64 %11) #2, !nosanitize !0
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br label %cont, !nosanitize !0
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cont: ; preds = %handler.dynamic_type_cache_miss, %entry
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tail call void %1(%struct.A* %a)
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; CHECK: ret void
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ret void
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}
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!0 = !{}
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