Commit Graph

2 Commits

Author SHA1 Message Date
Jakob Stoklund Olesen 77a0cfb19a Add a triple.
The test was failing on Linux because of asm syntax differences.

llvm-svn: 158748
2012-06-19 21:46:25 +00:00
Jakob Stoklund Olesen 0f855e4263 Implement PPCInstrInfo::isCoalescableExtInstr().
The PPC::EXTSW instruction preserves the low 32 bits of its input, just
like some of the x86 instructions. Use it to reduce register pressure
when the low 32 bits have multiple uses.

This requires a small change to PeepholeOptimizer since EXTSW takes a
64-bit input register.

This is related to PR5997.

llvm-svn: 158743
2012-06-19 21:14:34 +00:00