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Author SHA1 Message Date
Chris Lattner
f2b5e6edc0 GCC4 + IA64 = badnews 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22075 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 22:26:45 +00:00
Reid Spencer
b9a5d6861b Remove the check for the ffsll function. Its no longer needed by the 
simplify-libcalls pass (pass now computes it without a call to ffsll).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22074 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 22:15:11 +00:00
Chris Lattner
50ceadfa34 Improve statement 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22073 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 21:38:32 +00:00
Reid Spencer
10017623d9 Don't eliminate a test case, just the form of the test case, from the 
previous revision.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22072 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 21:35:26 +00:00
Chris Lattner
73b2291703 This does not belong 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22071 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 21:31:36 +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
9b1749b1f4 Add a case with non-constant argument for testing the transform: 
ffs(x) -> (x == 0 ? 0 : llvm.cttz(0)+1)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22069 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 21:26:59 +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
Chris Lattner
eff29abe2d ctlz = most signficant bits, cttz = least sig 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22061 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 19:39:26 +00:00
Chris Lattner
3e909e8bb9 fix warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22060 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 17:25:14 +00:00
Chris Lattner
7a5659176f fix compiler warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22059 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 17:23:19 +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
Chris Lattner
98a493c7ce add a sparcv8 section, make this validate 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22056 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 16:01:20 +00:00
Chris Lattner
b38da0fb33 more edits, add anchors 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22055 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 15:33:21 +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
1b592f0bdf edits to the simplify-libcalls element, move it higher in the list. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22052 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 06:09:55 +00:00
Chris Lattner
a4faa4aecc add generated code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22051 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 06:07:40 +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
Reid Spencer
5934de7aea Make note of the -simplify-libcalls pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22049 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 06:05:11 +00:00
Chris Lattner
70a1950154 add test to check for tail calls 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22048 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 05:52:51 +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
8a458764d6 Substantial edits for the release notes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22045 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 05:44:51 +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
b73855bcd4 Make sure this is not eligible for tail-call-elimination so that we test 
the correct thing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22039 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 23:54:55 +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
3b8ce85b19 new testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22037 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 23:52:09 +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
Chris Lattner
f5a5a6c666 add x86-64 abi 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22035 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 22:06:42 +00:00
Reid Spencer
50ffe0c7d1 * Truncate a long line. 
* By default, doxygen output formatted for printing on letter size paper
  not A4.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22034 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 20:06:31 +00:00
Reid Spencer
26a35003bf 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22033 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 20:04:19 +00:00
Andrew Lenharth
01f40b37ab mention the C++ exception problems on alpha 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22029 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 17:43:00 +00:00
Reid Spencer
c6e3d5ea2e Add a test case for testing ffs libcall conversion to constant 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22028 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 16:44:43 +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