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286f104576
Implement ControlFlowIntegrity for indirect function calls in ThinLTO. Design follows the RFC in llvm-dev, see https://groups.google.com/d/msg/llvm-dev/MgUlaphu4Qc/kywu0AqjAQAJ llvm-svn: 305533
30 lines
909 B
LLVM
30 lines
909 B
LLVM
; RUN: opt -thinlto-bc %s -o %t1.bc
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; RUN: llvm-lto2 run -thinlto-distributed-indexes %t1.bc -o %t.out -save-temps \
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; RUN: -r %t1.bc,foo,plx \
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; RUN: -r %t1.bc,bar,x
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; RUN: llvm-bcanalyzer -dump %t.out.index.bc | FileCheck %s --check-prefix=COMBINED
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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define i1 @foo(i8* %p) !type !0 {
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entry:
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%x = call i1 @llvm.type.test(i8* %p, metadata !"typeid1")
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ret i1 %x
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}
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declare !type !0 void @bar()
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declare i1 @llvm.type.test(i8* %ptr, metadata %type) nounwind readnone
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!0 = !{i64 0, !"typeid1"}
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; COMBINED: <GLOBALVAL_SUMMARY_BLOCK
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; COMBINED: <CFI_FUNCTION_DEFS op0=0 op1=3/>
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; COMBINED: <CFI_FUNCTION_DECLS op0=3 op1=3/>
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; COMBINED: </GLOBALVAL_SUMMARY_BLOCK>
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; COMBINED: <STRTAB_BLOCK
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; COMBINED-NEXT: <BLOB abbrevid=4/> blob data = 'foobar'
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; COMBINED-NEXT: </STRTAB_BLOCK>
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