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9d788e93a6
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1023 Commits

Author SHA1 Message Date
Chris Lattner
9d788e93a6 Add an isTailCall flag to LowerCallTo 
llvm-svn: 21958
 2005-05-13 18:50:42 +00:00
Chris Lattner
83d7e55471 add 'ret imm' instruction 
llvm-svn: 21945
 2005-05-13 17:56:48 +00:00
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
094bbfcebb rename the ADJCALLSTACKDOWN/ADJCALLSTACKUP nodes to be CALLSEQ_START/BEGIN. 
llvm-svn: 21915
 2005-05-12 23:24:06 +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
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
e358ac532b X86 has more than just 32-bit registers 
llvm-svn: 21857
 2005-05-11 05:00:34 +00:00
Chris Lattner
8230bddde2 Convert feature of the simple isel over for the pattern isel to use. 
llvm-svn: 21840
 2005-05-10 03:53:18 +00:00
Jeff Cohen
afc58006b7 Silence some VC++ warnings 
llvm-svn: 21838
 2005-05-10 02:22:38 +00:00
Chris Lattner
d96aea21d7 Implement READPORT/WRITEPORT, implementing the last X86 regression tests 
that were failing with the pattern selector.  Note that the support that
existed in the simple selector was clearly broken in several ways though
(which has also been fixed).

llvm-svn: 21831
 2005-05-09 21:17:38 +00:00
Chris Lattner
6a55b1d4dd do not emit illegal instructions 
llvm-svn: 21830
 2005-05-09 21:06:04 +00:00
Chris Lattner
7ba0699b05 Fix the syntax of the i/o instructions, these are obviously unused. 
llvm-svn: 21829
 2005-05-09 20:49:20 +00:00
Chris Lattner
46b51ab388 legalize readio/writeio into load/stores, fixing CodeGen/X86/io.llx with 
the pattern isel.

llvm-svn: 21828
 2005-05-09 20:37:29 +00:00
Chris Lattner
b28f865865 restore some non-dead code I removed last night breaking double casts to 
uint

llvm-svn: 21821
 2005-05-09 18:37:02 +00:00
Chris Lattner
3094cec3c9 Wrap long lines, remove dead code that is now handled by legalize 
llvm-svn: 21811
 2005-05-09 05:40:26 +00:00
Chris Lattner
5d291fa443 Fix FP -> bool casts 
llvm-svn: 21810
 2005-05-09 05:33:18 +00:00
Chris Lattner
65d61d9d44 Fix X86/2005-05-08-FPStackifierPHI.ll: ugly gross hack. 
llvm-svn: 21801
 2005-05-09 03:36:39 +00:00
Andrew Lenharth
8e2beec4d1 fix typo 
llvm-svn: 21693
 2005-05-04 19:25:37 +00:00
Andrew Lenharth
8b64bd0fd5 Implement count leading zeros (ctlz), count trailing zeros (cttz), and count 
population (ctpop).  Generic lowering is implemented, however only promotion
is implemented for SelectionDAG at the moment.

More coming soon.

llvm-svn: 21676
 2005-05-03 17:19:30 +00:00
Chris Lattner
15d29b0220 Add support for FSIN/FCOS when unsafe math ops are enabled. Patch contributed by 
Morten Ofstad!

llvm-svn: 21632
 2005-04-30 04:25:35 +00:00
Chris Lattner
663664d10c Add support for llvm.sqrt and sin/cos if unsafe math optimizations are enabled. 
llvm-svn: 21631
 2005-04-30 04:12:40 +00:00
Chris Lattner
27a534f181 Add support for FSQRT node, patch contributed by Morten Ofstad 
llvm-svn: 21610
 2005-04-28 22:07:18 +00:00
Chris Lattner
236cef3563 Add some new X86 instrs, patch contributed by Morten Ofstad 
llvm-svn: 21608
 2005-04-28 21:50:05 +00:00
Chris Lattner
2f7a83ffbf Codegen fabs/fabsf as FABS. Patch contributed by Morten Ofstad 
llvm-svn: 21607
 2005-04-28 21:48:42 +00:00
Andrew Lenharth
2a00530fa7 Implement Value* tracking for loads and stores in the selection DAG. This enables one to use alias analysis in the backends. 
(TRUNK)Stores and (EXT|ZEXT|SEXT)Loads have an extra SDOperand which is a SrcValueSDNode which contains the Value*.  Note that if the operation is introduced by the backend, it will still have the operand, but the value* will be null.

llvm-svn: 21599
 2005-04-27 20:10:01 +00:00
Misha Brukman
bf3f6181fd * Remove trailing whitespace 
* Convert tabs to spaces

llvm-svn: 21426
 2005-04-21 23:38:14 +00:00
Chris Lattner
8d813a7d51 Handle stores of global address as stores of immediates. Instead of: 
test1:
        movl $N, %eax
        movl %eax, G
        ret

emit:

test1:
        movl $N, G
        ret

llvm-svn: 21407
 2005-04-21 19:11:03 +00:00
Chris Lattner
706775467b Handle (store &GV -> mem) as a store immediate. This often occurs for 
printf format strings and other stuff.  Instead of generating this:

        movl $l1__2E_str_1, %eax
        movl %eax, (%esp)

we now emit:

        movl $l1__2E_str_1, (%esp)

llvm-svn: 21406
 2005-04-21 19:03:24 +00:00
Nate Begeman
ecb5b5c028 Make pattern isel default for ppc 
Add new ppc beta option related to using condition registers
Make pattern isel control flag (-enable-pattern-isel) global and tristate
  0 == off
  1 == on
  2 == target default

llvm-svn: 21309
 2005-04-15 22:12:16 +00:00
Chris Lattner
85c6a7bed0 Fix some mysteriously missing {}'s which cause the miscompilation of 
Olden/mst, Ptrdist/bc, Obsequi, etc.

llvm-svn: 21274
 2005-04-13 03:29:53 +00:00
Chris Lattner
f25fefd9cf Z_E_I is gone 
llvm-svn: 21267
 2005-04-13 02:39:05 +00:00
Chris Lattner
fd4d6e0847 Use live out sets for return values instead of imp_defs, which is cleaner and faster. 
llvm-svn: 21181
 2005-04-09 15:23:56 +00:00
Chris Lattner
39f963f968 This target does not support/want ISD::BRCONDTWOWAY 
llvm-svn: 21164
 2005-04-09 03:22:37 +00:00
Chris Lattner
583dcc66f2 X86 zero extends setcc results 
llvm-svn: 21146
 2005-04-07 19:41:46 +00:00
Chris Lattner
40ee8a062b Fix SingleSource/Regression/C/2005-05-06-LongLongSignedShift.c, we were not 
properly sign extending the top of the result of a 64-bit shift right by
a constant > 32.

llvm-svn: 21120
 2005-04-06 20:59:35 +00:00
Chris Lattner
c87ff88efb Add (untested) support for MULHS and MULHU. 
llvm-svn: 21107
 2005-04-06 04:21:07 +00:00
Chris Lattner
ba7cdbebb1 add signed versions of the extra precision multiplies 
llvm-svn: 21106
 2005-04-06 04:19:22 +00:00
Chris Lattner
8f30d63c1a add support for FABS and FNEG 
llvm-svn: 21015
 2005-04-02 05:30:17 +00:00
Chris Lattner
a5d4718875 This target doesn't support fabs/fneg yet. 
llvm-svn: 21010
 2005-04-02 05:03:24 +00:00
Chris Lattner
71434aa2dd add an fabs instr 
llvm-svn: 21006
 2005-04-02 04:31:56 +00:00
Chris Lattner
8ee783d9f0 Add support for 64-bit shifts. 
llvm-svn: 21005
 2005-04-02 04:01:14 +00:00
Chris Lattner
67da3fdb70 Add support for ISD::UNDEF to the X86 be 
llvm-svn: 20990
 2005-04-01 22:46:45 +00:00
Chris Lattner
46c4246df1 don't depend on the cfg being set up yet 
llvm-svn: 20936
 2005-03-30 01:10:00 +00:00
Nate Begeman
f821401825 Change interface to LowerCallTo to take a boolean isVarArg argument. 
llvm-svn: 20842
 2005-03-26 01:29:23 +00:00
Chris Lattner
ad07b1bc54 eliminate dead variables, patch contributed by Gabor Greif! 
llvm-svn: 20812
 2005-03-24 17:32:20 +00:00
Nate Begeman
175a9f1cc6 Remove comments that are now meaningless from the pattern ISels, at Chris's 
request.

llvm-svn: 20804
 2005-03-24 04:39:54 +00:00
Chris Lattner
79ba9d58fd Don't emit two comparisons when comparing a FP value against zero! 
llvm-svn: 20651
 2005-03-17 16:29:26 +00:00
Chris Lattner
c9a3ea81bf Fix the missing symbols problem Bill was hitting. Patch contributed by 
Bill Wendling!!

llvm-svn: 20649
 2005-03-17 15:38:16 +00:00
Chris Lattner
4b688a1c70 This mega patch converts us from using Function::a{iterator|begin|end} to 
using Function::arg_{iterator|begin|end}.  Likewise Module::g* -> Module::global_*.

This patch is contributed by Gabor Greif, thanks!

llvm-svn: 20597
 2005-03-15 04:54:21 +00:00