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Add support for Thumb interworking addresses for symbol offsets that get constant folded very early.

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This fixes SPASS with -integrated-as.  <rdar://problem/9165399>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128037 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson 2011-03-21 23:13:43 +00:00
parent ffcb717488
commit ce3a1bac4b
1 changed files with 5 additions and 0 deletions
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5
lib/MC/MCExpr.cpp
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@ -310,6 +310,11 @@ static void AttemptToFoldSymbolOffsetDifference(const MCAssembler *Asm,
if (AD.getFragment() == BD.getFragment()) {
Addend += (AD.getOffset() - BD.getOffset());
// Pointers to Thumb symbols need to have their low-bit set to allow
// for interworking.
if (Asm->isThumbFunc(&SA))
Addend |= 1;
// Clear the symbol expr pointers to indicate we have folded these
// operands.
A = B = 0;