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9 Commits

Author SHA1 Message Date
Chris Lattner b90ed2233c manually upgrade a bunch of tests to modern syntax, and remove some that 
are either unreduced or only test old syntax.

llvm-svn: 133228
 2011-06-17 03:14:27 +00:00
NAKAMURA Takumi 662892df27 test/CodeGen/X86/byval*.ll: Win64 has not supported byval yet. 
llvm-svn: 127731
 2011-03-16 13:52:20 +00:00
Stuart Hastings d17ae4e939 Revert 127359; it broke lencod. 
llvm-svn: 127382
 2011-03-10 00:25:53 +00:00
Stuart Hastings 9955e2f912 X86 byval copies no longer always_inline. <rdar://problem/8706628> 
llvm-svn: 127359
 2011-03-09 21:10:30 +00:00
Dan Gohman 40503396da Eliminate more uses of llvm-as and llvm-dis. 
llvm-svn: 81290
 2009-09-08 23:54:48 +00:00
Dan Gohman 544ab2c50b Drop ISD::MEMSET, ISD::MEMMOVE, and ISD::MEMCPY, which are not Legal 
on any current target and aren't optimized in DAGCombiner. Instead
of using intermediate nodes, expand the operations, choosing between
simple loads/stores, target-specific code, and library calls,
immediately.

Previously, the code to emit optimized code for these operations
was only used at initial SelectionDAG construction time; now it is
used at all times. This fixes some cases where rep;movs was being
used for small copies where simple loads/stores would be better.

This also cleans up code that checks for alignments less than 4;
let the targets make that decision instead of doing it in
target-independent code. This allows x86 to use rep;movs in
low-alignment cases.

Also, this fixes a bug that resulted in the use of rep;stos for
memsets of 0 with non-constant memory size when the alignment was
at least 4. It's better to use the library in this case, which
can be significantly faster when the size is large.

This also preserves more SourceValue information when memory
intrinsics are lowered into simple loads/stores.

llvm-svn: 49572
 2008-04-12 04:36:06 +00:00
Dan Gohman 8c7cf88f7e Fix a bug that prevented x86-64 from using rep.movsq for 
8-byte-aligned data.

llvm-svn: 49571
 2008-04-12 02:35:39 +00:00
Rafael Espindola 4730c04904 Don't add a default STACK_ALIGN (use the generic ABI alignment) 
Implement calls to functions with byval arguments on X86

llvm-svn: 42192
 2007-09-21 15:50:22 +00:00
Rafael Espindola e636fc05d6 Initial support for calling functions with byval arguments on x86-64 
llvm-svn: 41643
 2007-08-31 15:06:30 +00:00