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[CodeGen] prevent abnormal on invalid attributes

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Currently, when an invalid attribute is encountered on processing a .s file,
clang will abort due to llvm_unreachable.  Invalid user input should not cause
an abnormal termination of the compiler.  Change the interface to return a
boolean to indicate the failure as a first step towards improving hanlding of
malformed user input to clang.

Signed-off-by: Saleem Abdulrasool <compnerd@compnerd.org>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188047 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Saleem Abdulrasool
2013-08-09 01:52:03 +00:00
parent 623f2025a7
commit 1c9cd021c8
10 changed files with 36 additions and 22 deletions
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3
tools/lto/LTOModule.cpp
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@@ -738,9 +738,10 @@ namespace {
// FIXME: should we handle aliases?
markDefined(*Symbol);
}
virtual void EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute) {
virtual bool EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute) {
if (Attribute == MCSA_Global)
markGlobal(*Symbol);
return true;
}
virtual void EmitZerofill(const MCSection *Section, MCSymbol *Symbol,
uint64_t Size , unsigned ByteAlignment) {