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Thumb2 load/store fixups don't set the thumb bit.

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Load/store instructions w/ a fixup to be relative a function marked as thumb
don't use the low bit to specify thumb vs. non-thumb like interworking
branches do, so don't set it when dealing with those fixups.

rdar://10348687.

llvm-svn: 148366
This commit is contained in:
Jim Grosbach 2012-01-18 00:40:25 +00:00
parent 700e5901a7
commit b3bef2861c
1 changed files with 8 additions and 4 deletions
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12
lib/Target/ARM/MCTargetDesc/ARMAsmBackend.cpp
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@ -109,10 +109,14 @@ public:
MCValue &Target, uint64_t &Value) {
// Some fixups to thumb function symbols need the low bit (thumb bit)
// twiddled.
if (const MCSymbolRefExpr *A = Target.getSymA()) {
const MCSymbol &Sym = A->getSymbol().AliasedSymbol();
if (Asm.isThumbFunc(&Sym))
Value |= 1;
if ((unsigned)Fixup.getKind() != ARM::fixup_arm_ldst_pcrel_12 &&
(unsigned)Fixup.getKind() != ARM::fixup_t2_ldst_pcrel_12 &&
(unsigned)Fixup.getKind() != ARM::fixup_arm_thumb_cp) {
if (const MCSymbolRefExpr *A = Target.getSymA()) {
const MCSymbol &Sym = A->getSymbol().AliasedSymbol();
if (Asm.isThumbFunc(&Sym))
Value |= 1;
}
}
}