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45 Commits

Author SHA1 Message Date
Anton Korobeynikov
54791c2a43 Fix FP return for Win64 ABI 
llvm-svn: 50342
 2008-04-28 07:40:07 +00:00
Anton Korobeynikov
0df1f3bc6c Handle fp80 for win64 
llvm-svn: 50324
 2008-04-27 22:54:09 +00:00
Evan Cheng
39ae78cadb MMX argument passing fixes: 
On Darwin / Linux x86-32, v8i8, v4i16, v2i32 values are passed in MM[0-2].                                                                                                                                      
On Darwin / Linux x86-32, v1i64 values are passed in memory.                                                                                                                                                    
On Darwin x86-64, v8i8, v4i16, v2i32 values are passed in XMM[0-7].                                                                                                                                     
On Darwin x86-64, v1i64 values are passed in 64-bit GPRs.

llvm-svn: 50257
 2008-04-25 07:56:45 +00:00
Dan Gohman
f4cd5a4801 Add XMM1 as a second return value register for f32 and f64 on x86-64. This 
is needed for the x86-64-ABI handling of structs that contain floating-point
members that are returned by value.

llvm-svn: 49441
 2008-04-09 17:54:37 +00:00
Dan Gohman
9f7c4f6e16 Add DX as a second return value register for i16 on x86. 
llvm-svn: 49440
 2008-04-09 17:53:38 +00:00
Anton Korobeynikov
d3330dfbf6 Add new CC lowering rule: provide a list of registers, which can be 'shadowed', 
when some another register is used for argument passing.
Currently is used on Win64.

llvm-svn: 49079
 2008-04-02 05:23:57 +00:00
Anton Korobeynikov
49574852c1 Minor typo fixes. Also add another FIXME. 
llvm-svn: 48710
 2008-03-23 20:32:06 +00:00
Anton Korobeynikov
dad919f561 Add convenient helper for win64 check. Simplify things slightly. 
llvm-svn: 48691
 2008-03-22 20:57:27 +00:00
Anton Korobeynikov
27c8ad4020 Initial support for Win64 calling conventions. Still in early state. 
llvm-svn: 48690
 2008-03-22 20:37:30 +00:00
Chris Lattner
260473f983 Enable support for returning two long-double values in ST(0)/ST(1). 
This allows us to compile fp-stack-2results.ll into:

_test:
	fldz
	fld1
	ret

which returns 1 in ST(0) and 0 in ST(1).  This is needed for x86-64
_Complex long double.

llvm-svn: 48632
 2008-03-21 05:57:20 +00:00
Dale Johannesen
23a6f7fc1f MMX vectors are passed 4-byte aligned. 
llvm-svn: 47483
 2008-02-22 17:47:28 +00:00
Dale Johannesen
e8fa3130f8 Implement sseregparm. 
llvm-svn: 46764
 2008-02-05 20:46:33 +00:00
Evan Cheng
d436c2e724 SSE varargs arguments are passed in memory. 
llvm-svn: 46262
 2008-01-22 23:26:53 +00:00
Duncan Sands
5e1cbc1ad7 Need to handle any 'nest' parameter before integer 
parameters, since otherwise it won't be passed in
the right register.  With this change trampolines
work on x86-64 (thanks to Luke Guest for providing
access to an x86-64 box).

llvm-svn: 46192
 2008-01-19 16:42:10 +00:00
Evan Cheng
d7403ac663 Rename CCIfStruct to CCIfByVal and CCStructAssign to CCPassByVal. Remove unused parameters of CCStructAssign and add size and alignment requirement info. 
llvm-svn: 45997
 2008-01-15 03:34:58 +00:00
Evan Cheng
4eb7ae04c5 Both x86-32 and x86-64 handle byval parameter attributes. 
llvm-svn: 45996
 2008-01-15 03:15:41 +00:00
Duncan Sands
fbbbb24641 Unbreak x86-32 darwin long double! 
llvm-svn: 45703
 2008-01-07 16:36:38 +00:00
Duncan Sands
93959fc16a Fix long double support on x86-32 linux. 
llvm-svn: 45701
 2008-01-07 13:44:22 +00:00
Chris Lattner
ad9a6ccb83 Remove attribution from file headers, per discussion on llvmdev. 
llvm-svn: 45418
 2007-12-29 20:36:04 +00:00
Dale Johannesen
1e083ec1f6 x86-32 long doubles are 4-byte aligned on the stack 
for parameter passing (only for that, on Darwin).

llvm-svn: 45038
 2007-12-14 19:25:34 +00:00
Nate Begeman
4278967588 Support returning non-power-of-2 vectors to unblock some work 
llvm-svn: 44371
 2007-11-27 19:28:48 +00:00
Duncan Sands
e6821dd990 Eliminate the recently introduced CCAssignToStackABISizeAlign 
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
 2007-11-14 08:29:13 +00:00
Dale Johannesen
2e9b020e89 Add CCAssignToStackABISizeAlign for convenience in 
dealing with types whose size & alignment are
different on different subtargets.  Use it for x86 f80.

llvm-svn: 43988
 2007-11-10 22:07:15 +00:00
Duncan Sands
bf31a19c62 Clarify that fastcc has a problem with nested function 
trampolines, rather than with nested functions themselves.

llvm-svn: 42955
 2007-10-13 07:38:37 +00:00
Arnold Schwaighofer
6bcd9e7ec2 Corrected many typing errors. And removed 'nest' parameter handling 
for fastcc from X86CallingConv.td.  This means that nested functions
are not supported for calling convention 'fastcc'.

llvm-svn: 42934
 2007-10-12 21:30:57 +00:00
Arnold Schwaighofer
d47210011e Added tail call optimization to the x86 back end. It can be 
enabled by passing -tailcallopt to llc.  The optimization is
performed if the following conditions are satisfied:
* caller/callee are fastcc
* elf/pic is disabled OR
  elf/pic enabled + callee is in module + callee has
  visibility protected or hidden

llvm-svn: 42870
 2007-10-11 19:40:01 +00:00
Dale Johannesen
04682bdc81 More long double fixes. x86_64 should build now. 
llvm-svn: 42155
 2007-09-19 23:55:34 +00:00
Dale Johannesen
3ea9879011 Get X86 long double calling convention to work 
(on Darwin, anyway).  Fix some table omissions for
LD arithmetic.

llvm-svn: 40877
 2007-08-06 21:31:06 +00:00
Duncan Sands
35a77d857b Trampoline codegen support for X86-32. 
llvm-svn: 40566
 2007-07-27 20:02:49 +00:00
Rafael Espindola
7b3de98989 Add the byval attribute 
llvm-svn: 37940
 2007-07-06 10:57:03 +00:00
Dan Gohman
eb46e6e629 Vector results may be returned in XMM0 and XMM1, not just XMM0. With 
the recent lowering changes, this allows types like <4 x double> to
be returned, using two vector registers.

llvm-svn: 37844
 2007-07-02 16:21:53 +00:00
Chris Lattner
e13fac05d7 If a function is vararg, never pass inreg arguments in registers. Thanks to 
Anton for half of this patch.

llvm-svn: 37641
 2007-06-19 00:13:10 +00:00
Bill Wendling
8f16f4bf9c Fix comment. 
llvm-svn: 35531
 2007-03-31 09:36:12 +00:00
Bill Wendling
0cba5d3c15 Match GCC's MMX calling convention. 
llvm-svn: 35523
 2007-03-31 01:03:53 +00:00
Bill Wendling
503f3e41f6 Add MMX calling conventions. 
llvm-svn: 35489
 2007-03-30 00:35:22 +00:00
Chris Lattner
d8c7e8999e bugfix: fastcall does not require the first two params to be marked 'inreg', 
they always get registers.

llvm-svn: 34748
 2007-02-28 18:35:11 +00:00
Chris Lattner
9a1f1c41b0 add new CC_X86_32_FastCall calling conv, which describes fastcall on win32. 
Factor out a CC_X86_32_Common convention, which is the part shared between
ccc, stdcall and fastcall

llvm-svn: 34732
 2007-02-28 06:20:01 +00:00
Chris Lattner
76147834d6 switch LowerCCCCallTo over to using an autogenerated callingconv 
llvm-svn: 34727
 2007-02-28 05:31:48 +00:00
Chris Lattner
d663281088 rename stuff 
llvm-svn: 34726
 2007-02-28 05:30:29 +00:00
Chris Lattner
3eb95551d7 make subtarget references work. 
llvm-svn: 34721
 2007-02-28 04:51:41 +00:00
Chris Lattner
90c768b913 Add calling convention info 
llvm-svn: 34661
 2007-02-27 06:59:52 +00:00
Chris Lattner
9f0e5d8b03 move target independent calling convention stuff to TargetCallingConv.td 
llvm-svn: 34659
 2007-02-27 05:57:32 +00:00
Chris Lattner
2b737abea1 fill in some holes 
llvm-svn: 34658
 2007-02-27 05:51:05 +00:00
Chris Lattner
656996aab8 fix attribution 
llvm-svn: 34637
 2007-02-26 18:56:07 +00:00
Chris Lattner
948965f809 Add a description of the X86-64 calling convention and the return 
conventions.  This doesn't do anything yet, but may in the future.

llvm-svn: 34636
 2007-02-26 18:17:14 +00:00