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2 Commits

Author SHA1 Message Date
Akira Hatanaka
ab45f57419 Fix mips' long branch pass. 
Instructions emitted to compute branch offsets now use immediate operands
instead of symbolic labels. This change was needed because there were problems
when R_MIPS_HI16/LO16 relocations were used to make shared objects.

llvm-svn: 162731
 2012-08-28 03:03:05 +00:00
Jack Carter
fdb00bef02 Mips relocations R_MIPS_HIGHER and R_MIPS_HIGHEST. 
These 2 relocations gain access to the 
highest and the second highest 16 bits
of a 64 bit object.

R_MIPS_HIGHER %higher(A+S)
The %higher(x) function is [ (((long long) x + 0x80008000LL) >> 32) & 0xffff ]. 

R_MIPS_HIGHEST %highest(A+S)
The %highest(x) function is [ (((long long) x + 0x800080008000LL) >> 48) & 0xffff ]. 

llvm-svn: 161348
 2012-08-06 21:26:03 +00:00