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Produce an error instead of asserting on invalid .sleb128/.uleb128.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233155 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2015-03-25 00:25:37 +00:00
parent 759015d80f
commit 49dba99a89
4 changed files with 20 additions and 11 deletions
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13
lib/MC/MCAssembler.cpp
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@ -1034,7 +1034,10 @@ bool MCAssembler::relaxInstruction(MCAsmLayout &Layout,
bool MCAssembler::relaxLEB(MCAsmLayout &Layout, MCLEBFragment &LF) {
uint64_t OldSize = LF.getContents().size();
int64_t Value = LF.getValue().evaluateKnownAbsolute(Layout);
int64_t Value;
bool Abs = LF.getValue().evaluateKnownAbsolute(Value, Layout);
if (!Abs)
report_fatal_error("sleb128 and uleb128 expressions must be absolute");
SmallString<8> &Data = LF.getContents();
Data.clear();
raw_svector_ostream OSE(Data);
@ -1050,7 +1053,9 @@ bool MCAssembler::relaxDwarfLineAddr(MCAsmLayout &Layout,
MCDwarfLineAddrFragment &DF) {
MCContext &Context = Layout.getAssembler().getContext();
uint64_t OldSize = DF.getContents().size();
int64_t AddrDelta = DF.getAddrDelta().evaluateKnownAbsolute(Layout);
int64_t AddrDelta;
bool Abs = DF.getAddrDelta().evaluateKnownAbsolute(AddrDelta, Layout);
assert(Abs && "We created a line delta with an invalid expression");
int64_t LineDelta;
LineDelta = DF.getLineDelta();
SmallString<8> &Data = DF.getContents();
@ -1065,7 +1070,9 @@ bool MCAssembler::relaxDwarfCallFrameFragment(MCAsmLayout &Layout,
MCDwarfCallFrameFragment &DF) {
MCContext &Context = Layout.getAssembler().getContext();
uint64_t OldSize = DF.getContents().size();
int64_t AddrDelta = DF.getAddrDelta().evaluateKnownAbsolute(Layout);
int64_t AddrDelta;
bool Abs = DF.getAddrDelta().evaluateKnownAbsolute(AddrDelta, Layout);
assert(Abs && "We created call frame with an invalid expression");
SmallString<8> &Data = DF.getContents();
Data.clear();
raw_svector_ostream OSE(Data);