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DWARF: Reset the state after parsing a line table prologue and remove an unnecessary lookup.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139859 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer 2011-09-15 21:59:13 +00:00
parent 7ecedac8b7
commit 9013db3399
3 changed files with 5 additions and 5 deletions
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6
lib/DebugInfo/DWARFContext.cpp
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@ -141,10 +141,8 @@ DWARFCompileUnit *DWARFContext::getCompileUnitForOffset(uint32_t offset) {
}
DILineInfo DWARFContext::getLineInfoForAddress(uint64_t address) {
// First, get the index for the arange.
uint32_t arangeIndex = getDebugAranges()->findAddress(address);
// From there, get the offset of the compile unit.
uint32_t cuOffset = getDebugAranges()->offsetAtIndex(arangeIndex);
// First, get the offset of the compile unit.
uint32_t cuOffset = getDebugAranges()->findAddress(address);
// Retrieve the compile unit.
DWARFCompileUnit *cu = getCompileUnitForOffset(cuOffset);
if (!cu)

2
lib/DebugInfo/DWARFDebugAranges.cpp
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@ -100,7 +100,7 @@ void DWARFDebugAranges::dump(raw_ostream &OS) const {
const uint32_t num_ranges = getNumRanges();
for (uint32_t i = 0; i < num_ranges; ++i) {
const Range &range = Aranges[i];
OS << format("0x%8.8x: [0x%8.8llx - 0x%8.8llx)", range.Offset,
OS << format("0x%8.8x: [0x%8.8llx - 0x%8.8llx)\n", range.Offset,
(uint64_t)range.LoPC, (uint64_t)range.HiPC());
}
}

2
lib/DebugInfo/DWARFDebugLine.cpp
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@ -200,6 +200,8 @@ DWARFDebugLine::parseStatementTable(DataExtractor debug_line_data,
const uint32_t end_offset = debug_line_offset + prologue->TotalLength +
sizeof(prologue->TotalLength);
state.reset();
while (*offset_ptr < end_offset) {
uint8_t opcode = debug_line_data.getU8(offset_ptr);