Unverified Commit 341ca1ad authored by Vitaly Buka's avatar Vitaly Buka Committed by GitHub
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[test][msan] s390x already passes the test 

3bc439bd implemented overflow copying in a different way.

It's lucky to pass this test, but may fails in a different way.

Reviewers: thurstond, iii-i

Reviewed By: thurstond

Pull Request: https://github.com/llvm/llvm-project/pull/72710
parent 0133e25d

compiler-rt/test/msan/vararg_shadow.cpp

+2 −2
Original line number Diff line number Diff line
@@ -3,8 +3,8 @@ 
// Without -fno-sanitize-memory-param-retval we can't even pass poisoned values.

// RUN: %clangxx_msan -fno-sanitize-memory-param-retval -fsanitize-memory-track-origins=0 -O3 %s -o %t



// Nothing works yet.

// XFAIL: *

// The most of targets fail the test.

// XFAIL: target={{(x86|aarch64|loongarch64|mips|powerpc64).*}}



#include <sanitizer/msan_interface.h>

#include <stdarg.h>

llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp

+3 −0
Original line number Diff line number Diff line
@@ -5600,6 +5600,9 @@ struct VarArgSystemZHelper : public VarArgHelperBase { 
                       Alignment, RegSaveAreaSize);

  }





  // FIXME: This implementation limits OverflowOffset to kParamTLSSize, so we

  // don't know real overflow size and can't clear shadow beyond kParamTLSSize.

  void copyOverflowArea(IRBuilder<> &IRB, Value *VAListTag) {

    Type *OverflowArgAreaPtrTy = PointerType::getUnqual(*MS.C); // i64*

    Value *OverflowArgAreaPtrPtr = IRB.CreateIntToPtr(