when some another register is used for argument passing.
Currently is used on Win64.

llvm-svn: 49079

flags.  This is needed by the new legalize types
infrastructure which wants to expand the 64 bit
constants previously used to hold the flags on
32 bit machines.  There are two functional changes:
(1) in LowerArguments, if a parameter has the zext
attribute set then that is marked in the flags;
before it was being ignored; (2) PPC had some bogus
code for handling two word arguments when using the
ELF 32 ABI, which was hard to convert because of
the bogusness.  As suggested by the original author
(Nicolas Geoffray), I've disabled it for the moment.
Tested with "make check" and the Ada ACATS testsuite.

llvm-svn: 48640

Rename CCIfStruct to CCIfByVal and CCStructAssign to CCPassByVal. Remove unused parameters of CCStructAssign and add size and alignment requirement info.

llvm-svn: 45997

llvm-svn: 45418

in favour of teaching CCAssignToStack that size 0 and/or align
0 means to use the ABI values.  This seems a neater solution.
It is safe since no legal value type has size 0.

llvm-svn: 44107

dealing with types whose size & alignment are
different on different subtargets.  Use it for x86 f80.

llvm-svn: 43988

still under discussion.

llvm-svn: 40549

llvm-svn: 37940

Anton for half of this patch.

llvm-svn: 37641

zext/sext/aext stuff.

llvm-svn: 35008

from formal attributes' flags processing.

llvm-svn: 34963

llvm-svn: 34725

llvm-svn: 34685

llvm-svn: 34659