field to 32 bits, thus enabling correct handling of ByVal
structs bigger than 0x1ffff.  Abstract interface a bit.
Fixes gcc.c-torture/execute/pr23135.c and 
gcc.c-torture/execute/pr28982b.c in gcc testsuite (were ICE'ing
on ppc32, quietly producing wrong code on x86-32.)

llvm-svn: 48122

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: 45994

ByVal arguments are passed on stack. Make sure to allocate a slot using size and alignment information on the parameter attribute.

llvm-svn: 45897

llvm-svn: 45419

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

llvm-svn: 40986

llvm-svn: 37940

zext/sext/aext stuff.

llvm-svn: 35008

from formal attributes' flags processing.

llvm-svn: 34963

llvm-svn: 34724

llvm-svn: 34720

llvm-svn: 34697

llvm-svn: 34696