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10259 Commits

Author SHA1 Message Date
Jeff Cohen
8bc6f934e8 Fix tail call support in VC++ builds 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22143 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-20 01:35:39 +00:00
Chris Lattner
1030f72f8a Fastcc passes arguments in EAX and EDX, make sure the JIT doesn't clobber them 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22137 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-19 06:49:17 +00:00
Chris Lattner
16cb6f82eb Tailcalls require stubs to be emitted. Otherwise, the compilation callback 
doesn't know who 'called' it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22136 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-19 05:54:33 +00:00
Misha Brukman
29eeea5082 Wrap long lines 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22125 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-18 20:37:33 +00:00
Chris Lattner
49fbff4568 teach the inliner about coldcc and noreturn functions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22113 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-18 04:30:33 +00:00
Duraid Madina
26b1d42c84 comment the hpux bit 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22081 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-16 06:59:53 +00:00
Duraid Madina
aaad8388e9 HP-UX system headers make a mess of isinf(), so much so that gcc fixincludes 
can't patch it up for c++ (works in C though)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22079 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-16 06:45:57 +00:00
Reid Spencer
c3f6abdd85 Don't look for __builtin_ffs, we'll never see it from llvm-gcc and there's 
not reason to include it for other front ends.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22070 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 21:27:34 +00:00
Reid Spencer
f74eb3fa2a Provide this optimization as well: 
ffs(x) -> (x == 0 ? 0 : 1+llvm.cttz(x))


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22068 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 21:19:45 +00:00
Chris Lattner
fc87928ebb PPC "branch and link" instructions are branches in the PPC sense, but not 
in the LLVM code generator sense (they are calls).  Don't mark them as such,
which fixes the regressions on the ppc tester last night


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22065 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 20:11:44 +00:00
Chris Lattner
022ed327bd Fix andrews changes to fit in 80 columns 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22064 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 19:54:37 +00:00
Reid Spencer
c64e3e77f9 Duh .. you actually have to #include Config/config.h before you can test 
for one of the values that it defines!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22058 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 17:20:47 +00:00
Reid Spencer
edd5d9ece1 Some cleanups for compilation with GCC 4.0.0 to remove warnings: 
* Use C++ style casts, not C style casts
* Abstract base classes should have virtual destructor.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22057 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 16:13:11 +00:00
Duraid Madina
e75a24a5fa make angry compilers happy again 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22054 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 14:44:13 +00:00
Duraid Madina
4560657b4c aCC and STLport complained about this, because they're like that 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22053 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 13:05:48 +00:00
Chris Lattner
ea0354346f don't reserve space for tailcall arg areas. It explicitly managed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22050 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 06:07:10 +00:00
Chris Lattner
5fae9ccd39 Teach reginfo how to deal with ADJSTACKPTRri, allowing us to generate: 
add %ESP, 20
        jmp %EDX  # TAIL CALL

instead of:
        add %ESP, -8
        add %ESP, 28
        jmp %EDX  # TAIL CALL


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22047 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 05:49:58 +00:00
Chris Lattner
381e88799e Implement proper tail calls in the X86 backend for all fastcc->fastcc 
tail calls.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22046 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 05:46:45 +00:00
Chris Lattner
e5eb6f829c Add some simplifications for MULH[SU]. This allows us to compile this: 
long %bar(long %X) {
  %Y = mul long %X, 4294967297
  ret long %Y
}

to this:

l1_bar:
        mov %EAX, DWORD PTR [%ESP + 4]
        mov %EDX, %EAX
        add %EDX, DWORD PTR [%ESP + 8]
        ret

instead of:

l1_bar:
        mov %ECX, DWORD PTR [%ESP + 4]
        mov %EDX, 1
        mov %EAX, %ECX
        mul %EDX
        add %EDX, %ECX
        add %EDX, DWORD PTR [%ESP + 8]
        mov %EAX, %ECX
        ret


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22044 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 05:39:08 +00:00
Chris Lattner
1e9448bce8 Add markers in the asm file for tail calls, add a new ADJSTACKPTRri 
sorta-pseudo-instruction


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22042 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 03:10:37 +00:00
Chris Lattner
4fc997941d When inserting callee-save register reloads, make sure to skip over any 
terminator instructions before the 'ret' in case the target has a
multi-instruction return sequence.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22041 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 03:09:58 +00:00
Chris Lattner
0dede079e7 Yes, calltarget is the operand of the day. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22040 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 01:10:30 +00:00
Chris Lattner
6972177bd4 When emitting the function epilog, check to see if there already a stack 
adjustment.  If so, we merge the adjustment into the existing one.  This
allows us to generate:

caller2:
        sub %ESP, 12
        mov DWORD PTR [%ESP], 0
        mov %EAX, 1234567890
        mov %EDX, 0
        call func2
        add %ESP, 8
        ret 4

intead of:

caller2:
        sub %ESP, 12
        mov DWORD PTR [%ESP], 0
        mov %EAX, 1234567890
        mov %EDX, 0
        call func2
        sub %ESP, 4
        add %ESP, 12
        ret 4

for X86/fast-cc-merge-stack-adj.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22038 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 23:53:43 +00:00
Chris Lattner
2b3d56ee72 Add some new instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22036 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 23:35:21 +00:00
Reid Spencer
c29b13d648 Changes for ffs lib call simplification: 
* Check for availability of ffsll call in configure script
* Support ffs, ffsl, and ffsll conversion to constant value if the argument
  is constant.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22027 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 16:42:52 +00:00
Chris Lattner
1ca85d567c Fix construction of ioport intrinsics, fixing X86/io.llx and io-port.llx 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22026 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 13:56:55 +00:00
Chris Lattner
65af1abd1e Preserve calling conv when hacking on calls 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22025 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 12:28:32 +00:00
Chris Lattner
e43702695d preserve calling conventions when hacking on code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22024 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 12:25:32 +00:00
Chris Lattner
16d0db2da8 Make sure to preserve the calling convention when changing an invoke into 
a call.  This fixes Prolangs-C++/deriv2, kimwitu++, and Misc-C++/bigfib
on X86 with -enable-x86-fastcc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22023 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 12:21:56 +00:00
Chris Lattner
920c0aa9c2 Pass i64 values correctly split in reg/mem to fastcc calls. 
This fixes fourinarow with -enable-x86-fastcc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22022 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 12:03:10 +00:00
Chris Lattner
239738a162 Use target-specific nodes for calls. This allows the fastcc code to not have 
to do ugly hackery to avoid emitting code like this:

   call foo
   mov vreg, EAX
   adjcallstackup ...

If foo is a fastcc call and if vreg gets spilled, we might end up with this:

   call foo
   mov [ESP+offset], EAX     ;; Offset doesn't consider the 12!
   sub ESP, 12

Which is bad.  The previous hacky code to deal with this was A) gross B) not
good enough.  In particular, it could miss cases and emit the bad code above.
Now we always emit this:

   call foo
   adjcallstackup ...
   mov vreg, EAX

directly.

This makes fastcc with callees poping the stack work much better.  Next
stop (finally!) really is tail calls.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22021 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 08:48:15 +00:00
Chris Lattner
2789bde57f allow token chain at start or end of node 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22020 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 08:34:53 +00:00
Chris Lattner
3e01136f9f remove special case hacks for readport/readio from the binary operator 
codepath


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22019 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 07:45:46 +00:00
Chris Lattner
385328ce41 Implement fixme's by memoizing nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22018 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 07:42:29 +00:00
Chris Lattner
b7f7d51422 Turn this into a wrapper for a simpler version of getNode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22016 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 07:32:14 +00:00
Chris Lattner
adf6c2a0cb Eliminate special purpose hacks for dynamic_stack_alloc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22015 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 07:29:57 +00:00
Chris Lattner
e89083a930 Use the general mechanism for creating multi-value nodes instead of using 
special case hacks.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22014 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 07:25:05 +00:00
Chris Lattner
67649dfc32 use a target-specific node and custom expander to lower long->FP to FILD64m. 
This should fix some missing symbols problems on BSD and improve performance
of programs that use that operation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22012 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 06:52:07 +00:00
Chris Lattner
5fa4fa4e0f Wrap long line, actually add node to the graph. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22011 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 06:42:57 +00:00
Chris Lattner
d73cc5d058 legalize target-specific operations 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22010 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 06:34:48 +00:00
Chris Lattner
89c34637cb add a getNode() version that allows construction of any node type. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22009 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 06:20:26 +00:00
Chris Lattner
50381b6c41 LowerOperation takes a dag 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22004 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 05:50:48 +00:00
Chris Lattner
38135af219 Print the symbolic register name in a register allocator debug dump. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22002 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 05:34:15 +00:00
Chris Lattner
a88a260dbd Allow targets to have a custom int64->fp expander if desired 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22001 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 05:33:54 +00:00
Chris Lattner
10d2645710 Make sure the start of the arg area and the end (after the RA is pushed) 
is always 8-byte aligned for fastcc


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21995 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-13 23:49:10 +00:00
Chris Lattner
bfed9247f1 fix the assertion 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21994 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-13 23:35:47 +00:00
Chris Lattner
a8217e3000 Align doubles on 8-byte boundaries if possible. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21993 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-13 23:14:17 +00:00
Chris Lattner
0db07092a7 print stack object alignment in -print-machineinstr dumps 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21992 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-13 22:54:44 +00:00
Chris Lattner
653f7230ad fix typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21991 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-13 22:46:57 +00:00
Chris Lattner
06cebb456a Fix the problems with callee popped argument lists 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21988 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-13 22:13:49 +00:00