Anton Korobeynikov
54791c2a43
Fix FP return for Win64 ABI
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llvm-svn: 50342
2008-04-28 07:40:07 +00:00
Anton Korobeynikov
0df1f3bc6c
Handle fp80 for win64
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llvm-svn: 50324
2008-04-27 22:54:09 +00:00
Evan Cheng
39ae78cadb
MMX argument passing fixes:
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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
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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.
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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',
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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.
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llvm-svn: 48710
2008-03-23 20:32:06 +00:00
Anton Korobeynikov
dad919f561
Add convenient helper for win64 check. Simplify things slightly.
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llvm-svn: 48691
2008-03-22 20:57:27 +00:00
Anton Korobeynikov
27c8ad4020
Initial support for Win64 calling conventions. Still in early state.
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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).
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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.
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llvm-svn: 47483
2008-02-22 17:47:28 +00:00
Dale Johannesen
e8fa3130f8
Implement sseregparm.
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llvm-svn: 46764
2008-02-05 20:46:33 +00:00
Evan Cheng
d436c2e724
SSE varargs arguments are passed in memory.
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llvm-svn: 46262
2008-01-22 23:26:53 +00:00
Duncan Sands
5e1cbc1ad7
Need to handle any 'nest' parameter before integer
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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.
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llvm-svn: 45997
2008-01-15 03:34:58 +00:00
Evan Cheng
4eb7ae04c5
Both x86-32 and x86-64 handle byval parameter attributes.
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llvm-svn: 45996
2008-01-15 03:15:41 +00:00
Duncan Sands
fbbbb24641
Unbreak x86-32 darwin long double!
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llvm-svn: 45703
2008-01-07 16:36:38 +00:00
Duncan Sands
93959fc16a
Fix long double support on x86-32 linux.
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llvm-svn: 45701
2008-01-07 13:44:22 +00:00
Chris Lattner
ad9a6ccb83
Remove attribution from file headers, per discussion on llvmdev.
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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
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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
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llvm-svn: 44371
2007-11-27 19:28:48 +00:00
Duncan Sands
e6821dd990
Eliminate the recently introduced CCAssignToStackABISizeAlign
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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
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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
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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
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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
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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.
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llvm-svn: 42155
2007-09-19 23:55:34 +00:00
Dale Johannesen
3ea9879011
Get X86 long double calling convention to work
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(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.
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llvm-svn: 40566
2007-07-27 20:02:49 +00:00
Rafael Espindola
7b3de98989
Add the byval attribute
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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
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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
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Anton for half of this patch.
llvm-svn: 37641
2007-06-19 00:13:10 +00:00
Bill Wendling
8f16f4bf9c
Fix comment.
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llvm-svn: 35531
2007-03-31 09:36:12 +00:00
Bill Wendling
0cba5d3c15
Match GCC's MMX calling convention.
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llvm-svn: 35523
2007-03-31 01:03:53 +00:00
Bill Wendling
503f3e41f6
Add MMX calling conventions.
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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',
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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.
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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
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llvm-svn: 34727
2007-02-28 05:31:48 +00:00
Chris Lattner
d663281088
rename stuff
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llvm-svn: 34726
2007-02-28 05:30:29 +00:00
Chris Lattner
3eb95551d7
make subtarget references work.
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llvm-svn: 34721
2007-02-28 04:51:41 +00:00
Chris Lattner
90c768b913
Add calling convention info
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llvm-svn: 34661
2007-02-27 06:59:52 +00:00
Chris Lattner
9f0e5d8b03
move target independent calling convention stuff to TargetCallingConv.td
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llvm-svn: 34659
2007-02-27 05:57:32 +00:00
Chris Lattner
2b737abea1
fill in some holes
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llvm-svn: 34658
2007-02-27 05:51:05 +00:00
Chris Lattner
656996aab8
fix attribution
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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
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conventions. This doesn't do anything yet, but may in the future.
llvm-svn: 34636
2007-02-26 18:17:14 +00:00