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Author SHA1 Message Date
Reid Spencer
ba222e3e99 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.

llvm-svn: 22057
 2005-05-15 16:13:11 +00:00
Chris Lattner
45a64e1020 add a sparcv8 section, make this validate 
llvm-svn: 22056
 2005-05-15 16:01:20 +00:00
Chris Lattner
5ce43325f4 more edits, add anchors 
llvm-svn: 22055
 2005-05-15 15:33:21 +00:00
Duraid Madina
03a7327d63 make angry compilers happy again 
llvm-svn: 22054
 2005-05-15 14:44:13 +00:00
Duraid Madina
f4ca48c89e aCC and STLport complained about this, because they're like that 
llvm-svn: 22053
 2005-05-15 13:05:48 +00:00
Chris Lattner
5d60e7dc29 edits to the simplify-libcalls element, move it higher in the list. 
llvm-svn: 22052
 2005-05-15 06:09:55 +00:00
Chris Lattner
27648bb242 add generated code 
llvm-svn: 22051
 2005-05-15 06:07:40 +00:00
Chris Lattner
95650a26b2 don't reserve space for tailcall arg areas. It explicitly managed. 
llvm-svn: 22050
 2005-05-15 06:07:10 +00:00
Reid Spencer
90b3a2968f Make note of the -simplify-libcalls pass. 
llvm-svn: 22049
 2005-05-15 06:05:11 +00:00
Chris Lattner
4b72dca53e add test to check for tail calls 
llvm-svn: 22048
 2005-05-15 05:52:51 +00:00
Chris Lattner
2fd2e53f6a 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

llvm-svn: 22047
 2005-05-15 05:49:58 +00:00
Chris Lattner
77f8c2cece Implement proper tail calls in the X86 backend for all fastcc->fastcc 
tail calls.

llvm-svn: 22046
 2005-05-15 05:46:45 +00:00
Chris Lattner
32c523794d Substantial edits for the release notes. 
llvm-svn: 22045
 2005-05-15 05:44:51 +00:00
Chris Lattner
811dc49f55 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

llvm-svn: 22044
 2005-05-15 05:39:08 +00:00
Chris Lattner
7327c042b4 Add markers in the asm file for tail calls, add a new ADJSTACKPTRri 
sorta-pseudo-instruction

llvm-svn: 22042
 2005-05-15 03:10:37 +00:00
Chris Lattner
54bf1cc313 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.

llvm-svn: 22041
 2005-05-15 03:09:58 +00:00
Chris Lattner
64232a8480 Yes, calltarget is the operand of the day. 
llvm-svn: 22040
 2005-05-15 01:10:30 +00:00
Chris Lattner
b7c5669c14 Make sure this is not eligible for tail-call-elimination so that we test 
the correct thing.

llvm-svn: 22039
 2005-05-14 23:54:55 +00:00
Chris Lattner
adb31a99fa 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

llvm-svn: 22038
 2005-05-14 23:53:43 +00:00
Chris Lattner
b87c89a574 new testcase 
llvm-svn: 22037
 2005-05-14 23:52:09 +00:00
Chris Lattner
37e226fa9b Add some new instructions 
llvm-svn: 22036
 2005-05-14 23:35:21 +00:00
Chris Lattner
e0e8f7a3b4 add x86-64 abi 
llvm-svn: 22035
 2005-05-14 22:06:42 +00:00
Reid Spencer
bc4d4c20bb * Truncate a long line. 
* By default, doxygen output formatted for printing on letter size paper
  not A4.

llvm-svn: 22034
 2005-05-14 20:06:31 +00:00
Reid Spencer
9c7bfc232e Forgot to commit this earlier. Its part of the simplify-libcalls 
enhancement for ffs, ffsl, and ffsll optimizations. We can't do the opt
unless we also have the at least ffsll function. Notably SVR4 doesn't.

llvm-svn: 22033
 2005-05-14 20:04:19 +00:00
Andrew Lenharth
126bbd2bdc mention the C++ exception problems on alpha 
llvm-svn: 22029
 2005-05-14 17:43:00 +00:00
Reid Spencer
52c1813108 Add a test case for testing ffs libcall conversion to constant 
llvm-svn: 22028
 2005-05-14 16:44:43 +00:00
Reid Spencer
9cd1000c52 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.

llvm-svn: 22027
 2005-05-14 16:42:52 +00:00
Chris Lattner
46de5c99bd Fix construction of ioport intrinsics, fixing X86/io.llx and io-port.llx 
llvm-svn: 22026
 2005-05-14 13:56:55 +00:00
Chris Lattner
bcd4c17bfd Preserve calling conv when hacking on calls 
llvm-svn: 22025
 2005-05-14 12:28:32 +00:00
Chris Lattner
7771ae3fcc preserve calling conventions when hacking on code 
llvm-svn: 22024
 2005-05-14 12:25:32 +00:00
Chris Lattner
214f1a8cf9 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.

llvm-svn: 22023
 2005-05-14 12:21:56 +00:00
Chris Lattner
9d106c705d Pass i64 values correctly split in reg/mem to fastcc calls. 
This fixes fourinarow with -enable-x86-fastcc.

llvm-svn: 22022
 2005-05-14 12:03:10 +00:00
Chris Lattner
adde8b1a71 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.

llvm-svn: 22021
 2005-05-14 08:48:15 +00:00
Chris Lattner
052759b78c allow token chain at start or end of node 
llvm-svn: 22020
 2005-05-14 08:34:53 +00:00
Chris Lattner
d9e36f94bb remove special case hacks for readport/readio from the binary operator 
codepath

llvm-svn: 22019
 2005-05-14 07:45:46 +00:00
Chris Lattner
d1d8fbee2d Implement fixme's by memoizing nodes. 
llvm-svn: 22018
 2005-05-14 07:42:29 +00:00
Chris Lattner
b9ccf966b8 add a new map 
llvm-svn: 22017
 2005-05-14 07:36:02 +00:00
Chris Lattner
ac7d55f114 Turn this into a wrapper for a simpler version of getNode. 
llvm-svn: 22016
 2005-05-14 07:32:14 +00:00
Chris Lattner
a035798c4b Eliminate special purpose hacks for dynamic_stack_alloc. 
llvm-svn: 22015
 2005-05-14 07:29:57 +00:00
Chris Lattner
b94e243d14 Use the general mechanism for creating multi-value nodes instead of using 
special case hacks.

llvm-svn: 22014
 2005-05-14 07:25:05 +00:00
Chris Lattner
918a411976 Ensure these casts are done with the hardware fildll instruction 
llvm-svn: 22013
 2005-05-14 07:09:25 +00:00
Chris Lattner
c0c6680744 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.

llvm-svn: 22012
 2005-05-14 06:52:07 +00:00
Chris Lattner
ad411081fb Wrap long line, actually add node to the graph. 
llvm-svn: 22011
 2005-05-14 06:42:57 +00:00
Chris Lattner
6f7b63c7d7 legalize target-specific operations 
llvm-svn: 22010
 2005-05-14 06:34:48 +00:00
Chris Lattner
1afb5ae575 add a getNode() version that allows construction of any node type. 
llvm-svn: 22009
 2005-05-14 06:20:26 +00:00
Chris Lattner
1032d777e6 Add a way to construct an arbitrary node, cleanly. 
llvm-svn: 22008
 2005-05-14 06:20:08 +00:00
Chris Lattner
3afe2d8d83 add accessors 
llvm-svn: 22007
 2005-05-14 06:19:11 +00:00
Reid Spencer
a684a28474 Some minor adjustments for the 1.5 release. 
llvm-svn: 22006
 2005-05-14 05:52:07 +00:00
Chris Lattner
ae59fdbd99 Pass the dag into LowerOperation 
llvm-svn: 22005
 2005-05-14 05:51:05 +00:00
Chris Lattner
6e81a4090f LowerOperation takes a dag 
llvm-svn: 22004
 2005-05-14 05:50:48 +00:00