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Author SHA1 Message Date
Chris Lattner
7c3b219c28 Do not CopyFromReg physregs for live-in values. Instead, create a vreg for 
each live in, and copy the regs from the vregs.  As the very first thing we
do in the function, insert copies from the pregs to the vregs.  This fixes
problems where the token chain of CopyFromReg was not enough to allow reordering
of the copyfromreg nodes and other unchained nodes (e.g. div, which clobbers
eax on intel).

llvm-svn: 21932
 2005-05-13 07:38:09 +00:00
Chris Lattner
01eba53a10 Emit function entry code after lowering hte arguments. 
llvm-svn: 21931
 2005-05-13 07:33:32 +00:00
Chris Lattner
fdc4816996 Allow targets to emit code into the entry block of each function 
llvm-svn: 21930
 2005-05-13 07:23:21 +00:00
Chris Lattner
c79b6eeefd add a new method 
llvm-svn: 21929
 2005-05-13 07:23:03 +00:00
Chris Lattner
b06ee3dd65 calling a function with the wrong CC is undefined, turn it into an unreachable 
instruction.  This is useful for catching optimizers that don't preserve
calling conventions

llvm-svn: 21928
 2005-05-13 07:09:09 +00:00
Chris Lattner
5cd760d12d allow a virtual register to be associated with live-in values. 
llvm-svn: 21927
 2005-05-13 07:08:07 +00:00
Reid Spencer
77e3c97c8e Make sure that decompression checks for the case that bzip2 returns 
BZ_OK (meaning more data is expected) but there is no more input data. In
this case, the input file is probably truncated. Generate an exception that
indicates this case when its detected.

llvm-svn: 21926
 2005-05-13 07:05:37 +00:00
Chris Lattner
b9d99c9b2b When lowering invokes to calls, amke sure to preserve the calling conv. This 
fixes Ptrdist/anagram with x86 llcbeta

llvm-svn: 21925
 2005-05-13 06:27:02 +00:00
Chris Lattner
dfe45a21b1 Prefer int 0 instead of long 0 for GEP arguments. 
llvm-svn: 21924
 2005-05-13 06:10:12 +00:00
Chris Lattner
670c7f516c Fix a problem that nate reduced for me. 
llvm-svn: 21923
 2005-05-13 05:17:00 +00:00
Chris Lattner
59bb0edb45 rename variables and functions to match renamed DAG nodes. Bonus feature: 
I can actually remember which one is which now!

llvm-svn: 21922
 2005-05-13 05:09:11 +00:00
Chris Lattner
ff43e72218 disable this test for now. 
llvm-svn: 21920
 2005-05-13 04:51:58 +00:00
Chris Lattner
c7013ec3a9 do not call expandop on the same value more than once. This fixes 
X86/2004-02-22-Casts.llx

llvm-svn: 21919
 2005-05-13 04:45:13 +00:00
Chris Lattner
827d1b2e40 add a correct run line 
llvm-svn: 21918
 2005-05-13 04:20:57 +00:00
Chris Lattner
51de10e0c6 fix a bad typeo 
llvm-svn: 21917
 2005-05-12 23:51:40 +00:00
Chris Lattner
00d2fb482f update comment 
llvm-svn: 21916
 2005-05-12 23:24:44 +00:00
Chris Lattner
094bbfcebb rename the ADJCALLSTACKDOWN/ADJCALLSTACKUP nodes to be CALLSEQ_START/BEGIN. 
llvm-svn: 21915
 2005-05-12 23:24:06 +00:00
Chris Lattner
d1170afe2c reg test 
llvm-svn: 21914
 2005-05-12 23:09:04 +00:00
Chris Lattner
3106dfa185 Add a new -enable-x86-fastcc option that enables passing the first 
two integer values in registers for the fastcc calling conv.

llvm-svn: 21912
 2005-05-12 23:06:28 +00:00
Misha Brukman
a18398e5cd * Remove reference to llvm-fefw 
* Fix copyright line

llvm-svn: 21910
 2005-05-12 22:15:34 +00:00
Misha Brukman
3b4bc0568e llvm-fefw doesn't exist (yet) 
llvm-svn: 21907
 2005-05-12 21:56:03 +00:00
Misha Brukman
9b5ff86ae3 Remove extraneous `U ' in copyright line 
llvm-svn: 21906
 2005-05-12 21:49:11 +00:00
Misha Brukman
0db845cfb4 * Fix wording of the warning 
* Add autoindent, smartindent, and smarttab options to the file

llvm-svn: 21905
 2005-05-12 21:41:48 +00:00
Misha Brukman
a167e32b05 Remove extraneous colons after program names for consistency 
llvm-svn: 21904
 2005-05-12 21:39:01 +00:00
John Criswell
9cffaaf7f7 Shameless update of copyright years. 
llvm-svn: 21903
 2005-05-12 21:25:32 +00:00
John Criswell
99562cfa9d Fix this test on Solaris. 
Solaris grep is more traditional and (AFAIK) does not support regexs.
Also, single quotes should disable all shell interpretation, so no
backslashes should be needed (and, in fact, keep Solaris from working).

llvm-svn: 21902
 2005-05-12 21:06:05 +00:00
Chris Lattner
ccb86c9acc LowerCallTo now takes the cc to use 
llvm-svn: 21901
 2005-05-12 19:57:08 +00:00
Chris Lattner
dd2700de99 Pass calling convention to use into lower call to 
llvm-svn: 21900
 2005-05-12 19:56:57 +00:00
Chris Lattner
7e08dd591c Pass in Calling Convention to use into LowerCallTo 
llvm-svn: 21899
 2005-05-12 19:56:45 +00:00
Chris Lattner
d8766cdae2 Enable pattern isel by default 
llvm-svn: 21898
 2005-05-12 19:56:09 +00:00
Chris Lattner
ad48ef0a7d fix expansion of ct[lt]z nodes 
llvm-svn: 21896
 2005-05-12 19:27:51 +00:00
Chris Lattner
6b5bacbc0b Expand 64-bit ctlz/cttz nodes for 32-bit targets 
llvm-svn: 21895
 2005-05-12 19:05:01 +00:00
Chris Lattner
3677432d39 Fix uint->fp casts on PPC, allowing UnitTests/2005-05-12-Int64ToFP to 
work on it.

llvm-svn: 21894
 2005-05-12 18:52:34 +00:00
John Criswell
ab728eac00 Correct a detail with the alloca instruction. 
Functions do not exit with invoke; they exit with unwind.

llvm-svn: 21893
 2005-05-12 16:55:34 +00:00
Chris Lattner
dbcdac1ebf Allow something to be legalized multiple times. This can be used to reduce 
legalization iteration

llvm-svn: 21892
 2005-05-12 16:53:42 +00:00
John Criswell
abb58b3c4a Fixed some typos. 
llvm-svn: 21891
 2005-05-12 16:52:32 +00:00
Chris Lattner
a9a41e8856 Oops, don't do this after we figure out where to insert the call chains. 
llvm-svn: 21890
 2005-05-12 07:00:44 +00:00
Chris Lattner
b58308e6d4 Make sure to expand all nodes, avoiding unintentional node duplication. 
llvm-svn: 21889
 2005-05-12 06:54:21 +00:00
Chris Lattner
9f40cfa0a1 handle a common case generated by the uint64 -> FP code path better 
llvm-svn: 21888
 2005-05-12 06:27:02 +00:00
Chris Lattner
1c248e7462 add fixme 
llvm-svn: 21887
 2005-05-12 06:04:14 +00:00
Chris Lattner
5f2a0d17ab Fix a really horrible problem that causes the JIT to miscompile any program 
that use 64-bit integers on 32-bit hosts.

llvm-svn: 21886
 2005-05-12 06:01:28 +00:00
Chris Lattner
1196356365 Fix a problem where early legalization can cause token chain problems. 
llvm-svn: 21885
 2005-05-12 04:49:08 +00:00
Chris Lattner
6b0a45e42c These targets don't like setcc 
llvm-svn: 21884
 2005-05-12 02:06:00 +00:00
Chris Lattner
045b3f0110 Add a little hook 
llvm-svn: 21883
 2005-05-12 02:02:21 +00:00
Chris Lattner
b38ffd7fbf Make legalize a bit more efficient, and canonicalize sub X, C -> add X, -C 
llvm-svn: 21882
 2005-05-12 00:17:04 +00:00
Nate Begeman
71bcc67a0f Add testcase for legalizing ISD::CTTZ efficiently. On PPC, ctlz(int) is 
now codegen'd as this:

        addi r2, r3, -1
        andc r2, r2, r3
        cntlzw r2, r2
        subfic r3, r2, 32
        blr

llvm-svn: 21881
 2005-05-11 23:45:54 +00:00
Nate Begeman
e84f776b5d Necessary changes to codegen cttz efficiently on PowerPC 
1. Teach LegalizeDAG how to better legalize CTTZ if the target doesn't have
   CTPOP, but does have CTLZ
2. Teach PPC32 how to do sub x, const -> add x, -const for valid consts
3. Teach PPC32 how to do and (xor a, -1) b -> andc b, a
4. Teach PPC32 that ISD::CTLZ -> PPC::CNTLZW

llvm-svn: 21880
 2005-05-11 23:43:56 +00:00
John Criswell
55937aba69 Regression test for PR#563. 
llvm-svn: 21879
 2005-05-11 21:47:35 +00:00
Tanya Lattner
265167f8db Fixed issue that broke ssa. 
llvm-svn: 21878
 2005-05-11 21:45:03 +00:00
Chris Lattner
da3dd2f9e2 fix some GCC 4 warnings 
llvm-svn: 21877
 2005-05-11 21:40:40 +00:00