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Cleanup in the Darwin end. No functionality change.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121198 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling 2010-12-07 23:11:00 +00:00
parent 06d65f5156
commit d832fa053b
1 changed files with 7 additions and 5 deletions
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12
lib/Target/ARM/ARMAsmBackend.cpp
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@ -165,9 +165,8 @@ public:
void ELFARMAsmBackend::ApplyFixup(const MCFixup &Fixup, char *Data,
unsigned DataSize, uint64_t Value) const {
unsigned NumBytes = 4; // FIXME: 2 for Thumb
Value = adjustFixupValue(Fixup.getKind(), Value);
if (!Value) return; // No need to encode nothing.
if (!Value) return; // Doesn't change encoding.
unsigned Offset = Fixup.getOffset();
assert(Offset % NumBytes == 0 && "Offset mod NumBytes is nonzero!");
@ -207,6 +206,7 @@ public:
}
};
/// getFixupKindNumBytes - The number of bytes the fixup may change.
static unsigned getFixupKindNumBytes(unsigned Kind) {
switch (Kind) {
default:
@ -227,13 +227,15 @@ void DarwinARMAsmBackend::ApplyFixup(const MCFixup &Fixup, char *Data,
unsigned DataSize, uint64_t Value) const {
unsigned NumBytes = getFixupKindNumBytes(Fixup.getKind());
Value = adjustFixupValue(Fixup.getKind(), Value);
if (!Value) return; // Doesn't change encoding.
unsigned Offset = Fixup.getOffset();
assert(Offset + NumBytes <= DataSize && "Invalid fixup offset!");
assert(Fixup.getOffset() + NumBytes <= DataSize &&
"Invalid fixup offset!");
// For each byte of the fragment that the fixup touches, mask in the
// bits from the fixup value.
for (unsigned i = 0; i != NumBytes; ++i)
Data[Fixup.getOffset() + i] |= uint8_t(Value >> (i * 8));
Data[Offset + i] |= uint8_t((Value >> (i * 8)) & 0xff);
}
} // end anonymous namespace