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1235 Commits

Author SHA1 Message Date
Evan Cheng
e458553c73 Bye bye HACKTROCITY. 
llvm-svn: 24935
 2005-12-22 02:26:21 +00:00
Evan Cheng
fb6413e05a * Fix a GlobalAddress lowering bug. 
* Teach DAG combiner about X86ISD::SETCC by adding a TargetLowering hook.

llvm-svn: 24921
 2005-12-21 23:05:39 +00:00
Evan Cheng
add305de26 Oops. Accidentally deleted RET pattern. It's still needed for return void; 
llvm-svn: 24920
 2005-12-21 22:22:16 +00:00
Jim Laskey
d82881490c Disengage DEBUG_LOC from non-PPC targets. 
llvm-svn: 24919
 2005-12-21 20:51:37 +00:00
Evan Cheng
6f15189a77 * Added support for X86 RET with an additional operand to specify number of 
bytes to pop off stack.
* Added support for X86 SETCC.

llvm-svn: 24917
 2005-12-21 20:21:51 +00:00
Chris Lattner
347c6eedae This was meant to go in 
llvm-svn: 24900
 2005-12-21 07:50:26 +00:00
Chris Lattner
884def40f4 Rewrite FP stackifier support in the X86InstrInfo.td file, splitting patterns 
that were overloaded to work before and after the stackifier runs.  With the
new clean world, it is possible to write patterns for these instructions: woo!

This also adds a few simple patterns here and there, though there are a lot
still missing.  These should be easy to add though. :)

See the comments under "Floating Point Stack Support" for more details on
the new world order.

This patch as absolutely no effect on the generated code, woo!

llvm-svn: 24899
 2005-12-21 07:47:04 +00:00
Chris Lattner
ee15b5393f Wrap some long lines: no functionality change 
llvm-svn: 24898
 2005-12-21 05:34:58 +00:00
Evan Cheng
cab6710034 Remove ISD::RET select code. Now tblgen'd. 
llvm-svn: 24889
 2005-12-21 02:41:57 +00:00
Evan Cheng
0226113ed5 * Added lowering hook for external weak global address. It inserts a load 
for Darwin.
* Added lowering hook for ISD::RET. It inserts CopyToRegs for the return
  value (or store / fld / copy to ST(0) for floating point value). This
  eliminate the need to write C++ code to handle RET with variable number
  of operands.

llvm-svn: 24888
 2005-12-21 02:39:21 +00:00
Evan Cheng
ace8f1fafa SSE2 floating point load / store patterns. SSE2 fp to int conversion patterns. 
llvm-svn: 24886
 2005-12-20 22:59:51 +00:00
Evan Cheng
1c3ea75ffc Added X86 readport patterns. 
llvm-svn: 24879
 2005-12-20 07:38:38 +00:00
Evan Cheng
44e4e6a57f Added a hook to print out names of target specific DAG nodes. 
llvm-svn: 24877
 2005-12-20 06:22:03 +00:00
Evan Cheng
bb34a50cb0 X86 conditional branch support. 
llvm-svn: 24870
 2005-12-19 23:12:38 +00:00
Evan Cheng
c87099506c It's essential we clear CodeGenMap after isel every basic block! 
llvm-svn: 24867
 2005-12-19 22:36:02 +00:00
Chris Lattner
399dfec939 eliminate some redundancy 
llvm-svn: 24781
 2005-12-17 19:47:05 +00:00
Evan Cheng
56649f9616 Darwin API issue: indirect load of external and weak symbols. 
llvm-svn: 24775
 2005-12-17 09:13:43 +00:00
Evan Cheng
a3ff796fda Remove a few lines of dead code. 
llvm-svn: 24768
 2005-12-17 07:18:44 +00:00
Evan Cheng
de142995a1 Added an idea about any_extend for performance tuning. 
llvm-svn: 24763
 2005-12-17 06:54:43 +00:00
Evan Cheng
c308dfb801 Added truncate. 
llvm-svn: 24760
 2005-12-17 02:02:50 +00:00
Evan Cheng
6a94c77c55 Added anyext, modelled as zext on X86. 
llvm-svn: 24759
 2005-12-17 01:47:57 +00:00
Evan Cheng
19550821d1 Added some isel ideas. 
llvm-svn: 24757
 2005-12-17 01:25:19 +00:00
Evan Cheng
5d90b26707 Added support for cmp, test, and conditional move instructions. 
llvm-svn: 24756
 2005-12-17 01:24:02 +00:00
Evan Cheng
566600c17d Only lower SELECT when using DAG based isel. 
llvm-svn: 24755
 2005-12-17 01:22:13 +00:00
Evan Cheng
d51da93a03 X86 lowers SELECT to a cmp / test followed by a conditional move. 
llvm-svn: 24754
 2005-12-17 01:21:05 +00:00
Chris Lattner
71443a0e36 Don't globalize internal functions 
llvm-svn: 24727
 2005-12-16 00:07:30 +00:00
Evan Cheng
43152cb8b6 * Promote all 1 bit entities to 8 bit. 
* Handling extload (1 bit -> 8 bit) and remove C++ code that handle 1 bit
zextload.

llvm-svn: 24726
 2005-12-15 19:49:23 +00:00
Evan Cheng
f72e7055c0 Added frameindex, constpool, globaladdr, and externalsym as root nodes of 
leaaddr.

llvm-svn: 24724
 2005-12-15 08:31:04 +00:00
Evan Cheng
cc6efa8b6f Handling zero extension of 1 bit value. 
llvm-svn: 24722
 2005-12-15 01:02:48 +00:00
Evan Cheng
576b826f71 Use MOV8rm to load 1 bit value. 
llvm-svn: 24721
 2005-12-15 00:59:17 +00:00
Evan Cheng
40e397521c Fixed a typo: line 2323: MOVSX16rm8 -> MOVZX16rm8. This was the cause fo 12/14/2005 hbd failure. 
llvm-svn: 24717
 2005-12-14 22:28:18 +00:00
Evan Cheng
3b094e89fb Added sext and zext patterns. 
llvm-svn: 24705
 2005-12-14 02:22:27 +00:00
Evan Cheng
ad1e2fd14a Add load + store folding srl and sra patterns. 
llvm-svn: 24696
 2005-12-13 07:24:22 +00:00
Chris Lattner
95555853ad Use the shared asmprinter code for printing special llvm globals 
llvm-svn: 24695
 2005-12-13 06:32:50 +00:00
Chris Lattner
0975e89328 Add ELF and darwin support for static ctors and dtors 
llvm-svn: 24693
 2005-12-13 04:53:51 +00:00
Evan Cheng
63f60d3edb Beautify a few patterns. 
llvm-svn: 24690
 2005-12-13 02:40:18 +00:00
Evan Cheng
95d46be9e6 Some shl patterns which do load + store folding. 
llvm-svn: 24689
 2005-12-13 02:34:51 +00:00
Evan Cheng
6beadf1c29 A few helper fragments for loads. e.g. (i8 (load addr:$src)) -> (loadi8 addr:$src). Only to improve readibility. 
llvm-svn: 24688
 2005-12-13 01:57:51 +00:00
Evan Cheng
d233c28d29 Add and, or, and xor patterns which fold load + stores. 
llvm-svn: 24687
 2005-12-13 01:41:36 +00:00
Evan Cheng
62999d6c5d Add inc + dec patterns which fold load + stores. 
llvm-svn: 24686
 2005-12-13 01:02:47 +00:00
Evan Cheng
7f9fb7b095 Add neg and not patterns which fold load + stores. 
llvm-svn: 24685
 2005-12-13 00:54:44 +00:00
Evan Cheng
240071c011 Missed a couple redundant explicit type casts. 
llvm-svn: 24684
 2005-12-13 00:25:07 +00:00
Evan Cheng
e80ec06aaf Fix some bad choice of names: i16SExt8 ->i16immSExt8, etc. 
llvm-svn: 24683
 2005-12-13 00:14:11 +00:00
Evan Cheng
ea7f208813 * Split immSExt8 to i16SExt8 and i32SExt8 for i16 and i32 immediate operands. 
This enables the removal of some explicit type casts.
* Rename immZExt8 to i16ZExt8 as well.

llvm-svn: 24682
 2005-12-13 00:01:09 +00:00
Evan Cheng
0ee9dc460a Add some integer mul patterns. 
llvm-svn: 24681
 2005-12-12 23:47:46 +00:00
Evan Cheng
6c9f9ea7ec Add some sub patterns. 
llvm-svn: 24675
 2005-12-12 21:54:05 +00:00
Evan Cheng
76923d3512 When SelectLEAAddr() fails, it shouldn't cause the side effect of having the 
base or index operands being selected.

llvm-svn: 24674
 2005-12-12 21:49:40 +00:00
Evan Cheng
cf34770b28 For ISD::RET, if # of operands >= 2, try selection the real data dep. operand 
first before the chain.
e.g.
int X;

int foo(int x)
{
  x += X + 37;
  return x;
}

If chain operand is selected first, we would generate:
	movl X, %eax
	movl 4(%esp), %ecx
	leal 37(%ecx,%eax), %eax

rather than
	movl $37, %eax
	addl 4(%esp), %eax
	addl X, %eax

which does not require %ecx. (Due to ADD32rm not matching.)

llvm-svn: 24673
 2005-12-12 20:32:18 +00:00
Chris Lattner
08c38b28db remove some never-completed and now-obsolete code. 
llvm-svn: 24671
 2005-12-12 20:12:20 +00:00
Evan Cheng
145318aefb Add a few more add / store patterns. e.g. ADD32mi8. 
llvm-svn: 24670
 2005-12-12 19:45:23 +00:00