6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-02-22 13:29:44 +00:00
Code Issues Projects Releases Wiki Activity

MC/Mach-O: Implement EmitValue using data fragments + fixups instead of fill fragment.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96091 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Dunbar 2010-02-13 09:28:22 +00:00
parent 3a30b827a5
commit 45f4874611
1 changed files with 17 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
lib/MC/MCMachOStreamer.cpp
View File

@ -333,7 +333,23 @@ void MCMachOStreamer::EmitBytes(StringRef Data, unsigned AddrSpace) {
void MCMachOStreamer::EmitValue(const MCExpr *Value, unsigned Size, void MCMachOStreamer::EmitValue(const MCExpr *Value, unsigned Size,
unsigned AddrSpace) { unsigned AddrSpace) {
new MCFillFragment(*AddValueSymbols(Value), Size, 1, CurSectionData); // Assume the front-end will have evaluate things absolute expressions, so
// just create data + fixup.
MCDataFragment *DF = dyn_cast_or_null<MCDataFragment>(getCurrentFragment());
if (!DF)
DF = new MCDataFragment(CurSectionData);
// Avoid fixups when possible.
int64_t AbsValue;
if (Value->EvaluateAsAbsolute(AbsValue)) {
// FIXME: Endianness assumption.
for (unsigned i = 0; i != Size; ++i)
DF->getContents().push_back(uint8_t(AbsValue >> (i * 8)));
} else {
DF->getFixups().push_back(MCAsmFixup(DF->getContents().size(),
*AddValueSymbols(Value), Size));
DF->getContents().resize(DF->getContents().size() + Size, 0);
}
} }
void MCMachOStreamer::EmitValueToAlignment(unsigned ByteAlignment, void MCMachOStreamer::EmitValueToAlignment(unsigned ByteAlignment,