derek.holloway
7502bf64a4
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81 lines
4.2 KiB
LLVM
81 lines
4.2 KiB
LLVM
; RUN: opt < %s -passes='module(sancov-module)' -sanitizer-coverage-level=4 -sanitizer-coverage-trace-pc-guard -mtriple=x86_64 -S | FileCheck %s --check-prefixes=CHECK,CHECK-CTOR,COMDAT,ELF,ELF-CTOR
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; RUN: opt < %s -passes='module(sancov-module)' -sanitizer-coverage-level=4 -sanitizer-coverage-trace-pc-guard -sanitizer-coverage-drop-ctors=1 -mtriple=x86_64 -S | FileCheck %s --check-prefixes=CHECK,COMDAT,ELF
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; RUN: opt < %s -passes='module(sancov-module)' -sanitizer-coverage-level=4 -sanitizer-coverage-trace-pc-guard -mtriple=aarch64-apple-darwin -S | FileCheck %s --check-prefixes=CHECK,CHECK-CTOR,MACHO
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; RUN: opt < %s -passes='module(sancov-module)' -sanitizer-coverage-level=4 -sanitizer-coverage-trace-pc-guard -mtriple=x86_64-windows -S | FileCheck %s --check-prefixes=CHECK,CHECK-CTOR,COMDAT,WIN
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; COMDAT: $foo = comdat nodeduplicate
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; COMDAT: $CallViaVptr = comdat nodeduplicate
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; COMDAT: $DirectBitcastCall = comdat nodeduplicate
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; ELF: @__sancov_gen_ = private global [3 x i32] zeroinitializer, section "__sancov_guards", comdat($foo), align 4{{$}}
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; ELF-NEXT: @__sancov_gen_.1 = private global [1 x i32] zeroinitializer, section "__sancov_guards", comdat($CallViaVptr), align 4{{$}}
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; ELF-NEXT: @__sancov_gen_.2 = private global [1 x i32] zeroinitializer, section "__sancov_guards", comdat($DirectBitcastCall), align 4{{$}}
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; MACHO: @__sancov_gen_ = private global [3 x i32] zeroinitializer, section "__DATA,__sancov_guards", align 4{{$}}
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; MACHO-NEXT: @__sancov_gen_.1 = private global [1 x i32] zeroinitializer, section "__DATA,__sancov_guards", align 4{{$}}
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; MACHO-NEXT: @__sancov_gen_.2 = private global [1 x i32] zeroinitializer, section "__DATA,__sancov_guards", align 4{{$}}
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; WIN: @__sancov_gen_ = private global [3 x i32] zeroinitializer, section ".SCOV$GM", comdat($foo), align 4{{$}}
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; WIN-NEXT: @__sancov_gen_.1 = private global [1 x i32] zeroinitializer, section ".SCOV$GM", comdat($CallViaVptr), align 4{{$}}
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; WIN-NEXT: @__sancov_gen_.2 = private global [1 x i32] zeroinitializer, section ".SCOV$GM", comdat($DirectBitcastCall), align 4{{$}}
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; ELF-CTOR: @llvm.used = appending global [1 x ptr] [ptr @sancov.module_ctor_trace_pc_guard]
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; ELF: @llvm.compiler.used = appending global [3 x ptr] [ptr @__sancov_gen_, ptr @__sancov_gen_.1, ptr @__sancov_gen_.2], section "llvm.metadata"
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; MACHO: @llvm.used = appending global [4 x ptr] [ptr @sancov.module_ctor_trace_pc_guard, ptr @__sancov_gen_, ptr @__sancov_gen_.1, ptr @__sancov_gen_.2]
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; MACHO-NOT: @llvm.compiler.used =
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; WIN: @llvm.used = appending global [1 x ptr] [ptr @sancov.module_ctor_trace_pc_guard], section "llvm.metadata"
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; WIN-NEXT: @llvm.compiler.used = appending global [3 x ptr] [ptr @__sancov_gen_, ptr @__sancov_gen_.1, ptr @__sancov_gen_.2], section "llvm.metadata"
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; CHECK-LABEL: define void @foo
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; CHECK: call void @__sanitizer_cov_trace_pc
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; CHECK: ret void
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define void @foo(ptr %a) sanitize_address {
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entry:
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%tobool = icmp eq ptr %a, null
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br i1 %tobool, label %if.end, label %if.then
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if.then: ; preds = %entry
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store i32 0, ptr %a, align 4
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br label %if.end
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if.end: ; preds = %entry, %if.then
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ret void
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}
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; CHECK-LABEL: define void @CallViaVptr
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; CHECK: call void @__sanitizer_cov_trace_pc_indir
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; CHECK: call void @__sanitizer_cov_trace_pc_indir
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; CHECK: ret void
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%struct.StructWithVptr = type { ptr }
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define void @CallViaVptr(ptr %foo) uwtable sanitize_address {
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entry:
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%vtable = load ptr, ptr %foo, align 8
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%0 = load ptr, ptr %vtable, align 8
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tail call void %0(ptr %foo)
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tail call void %0(ptr %foo)
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tail call void asm sideeffect "", ""()
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ret void
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}
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; CHECK-LABEL: define void @DirectBitcastCall
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; CHECK-NEXT: call void @__sanitizer_cov_trace_pc_guard
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; CHECK-NEXT: call void @direct_callee()
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; CHECK-NEXT: ret void
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declare i32 @direct_callee()
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define void @DirectBitcastCall() sanitize_address {
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call void @direct_callee()
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ret void
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}
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; ELF-CTOR-LABEL: define internal void @sancov.module_ctor_trace_pc_guard() #2 comdat {
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; MACHO-LABEL: define internal void @sancov.module_ctor_trace_pc_guard() #2 {
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; CHECK-CTOR: attributes #2 = { nounwind }
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