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Author SHA1 Message Date
Jakob Stoklund Olesen 729abd360e Add TEST8ri_NOREX pseudo to constrain sub_8bit_hi copies. 
In 64-bit mode, sub_8bit_hi sub-registers can only be used by NOREX
instructions. The COPY created from the EXTRACT_SUBREG DAG node cannot
target all GR8 registers, only those in GR8_NOREX.

TO enforce this, we ensure that all instructions using the
EXTRACT_SUBREG are GR8_NOREX constrained.

This fixes PR11088.

llvm-svn: 141499
 2011-10-08 18:28:28 +00:00
Jakob Stoklund Olesen b81dcdef7b Add missing test case for r141410. 
llvm-svn: 141498
 2011-10-08 18:06:54 +00:00