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Author SHA1 Message Date
Chris Lattner
a8429e5f11 validate matching constraints and remember when we see them. 
llvm-svn: 25892
 2006-02-02 00:23:53 +00:00
Chris Lattner
d3e4f27b9f add an instance var and argument. 
llvm-svn: 25891
 2006-02-02 00:23:12 +00:00
Chris Lattner
26451058cb more notes 
llvm-svn: 25890
 2006-02-01 23:38:08 +00:00
Evan Cheng
8c988b64ae Tell codegen MOVAPSrr and MOVAPDrr are copies. 
llvm-svn: 25889
 2006-02-01 23:03:16 +00:00
Evan Cheng
adc4966129 Added SSE entries to foldMemoryOperand(). 
llvm-svn: 25888
 2006-02-01 23:02:25 +00:00
Evan Cheng
b78bb375c2 Rearrange code to my liking. :) 
llvm-svn: 25887
 2006-02-01 23:01:57 +00:00
Chris Lattner
41a35db65f Implement smart printing of inline asm strings, handling variants and 
substituted operands.  For this testcase:

int %test(int %A, int %B) {
  %C = call int asm "xyz $0, $1, $2", "=r,r,r"(int %A, int %B)
  ret int %C
}

we now emit:

_test:
        or r2, r3, r3
        or r3, r4, r4
        xyz r2, r2, r3  ;; look here
        or r3, r2, r2
        blr

... note the substituted operands. :)

llvm-svn: 25886
 2006-02-01 22:41:11 +00:00
Chris Lattner
c97cf51e02 add a new PrintAsmOperand method, move some stuff around for ease of reading. 
llvm-svn: 25885
 2006-02-01 22:39:30 +00:00
Chris Lattner
d202c4d3cc add a method 
llvm-svn: 25884
 2006-02-01 22:38:46 +00:00
Chris Lattner
8004ba8a2b another note 
llvm-svn: 25883
 2006-02-01 21:44:48 +00:00
Andrew Lenharth
9812806d03 Add immediate forms of cmov and remove some cruft 
llvm-svn: 25882
 2006-02-01 19:37:33 +00:00
Andrew Lenharth
05f4a19bbe test cmov immediate form 
llvm-svn: 25881
 2006-02-01 19:36:52 +00:00
Chris Lattner
c9a001a67d add a note, ya knoe 
llvm-svn: 25880
 2006-02-01 19:12:23 +00:00
Nate Begeman
e74a2db0f0 *** empty log message *** 
llvm-svn: 25879
 2006-02-01 19:05:15 +00:00
Chris Lattner
9665c2d76f Implement simple register assignment for inline asms. This allows us to compile: 
int %test(int %A, int %B) {
  %C = call int asm "xyz $0, $1, $2", "=r,r,r"(int %A, int %B)
  ret int %C
}

into:

 (0x8906130, LLVM BB @0x8902220):
        %r2 = OR4 %r3, %r3
        %r3 = OR4 %r4, %r4
        INLINEASM <es:xyz $0, $1, $2>, %r2<def>, %r2, %r3
        %r3 = OR4 %r2, %r2
        BLR

which asmprints as:

_test:
        or r2, r3, r3
        or r3, r4, r4
        xyz $0, $1, $2      ;; need to print the operands now :)
        or r3, r2, r2
        blr

llvm-svn: 25878
 2006-02-01 18:59:47 +00:00
Chris Lattner
4042f63422 Finegrainify namespacification 
llvm-svn: 25877
 2006-02-01 18:10:56 +00:00
Chris Lattner
821f93a659 add a note 
llvm-svn: 25876
 2006-02-01 17:54:23 +00:00
Nate Begeman
0be60963bd Fix some of the stuff in the PPC README file, and clean up legalization 
of the SELECT_CC, BR_CC, and BRTWOWAY_CC nodes.

llvm-svn: 25875
 2006-02-01 07:19:44 +00:00
Chris Lattner
d2fb7bf108 add a note, I'll take care of this after nate commits his big patch 
llvm-svn: 25873
 2006-02-01 06:40:32 +00:00
Evan Cheng
ef93bdc0cf - Use xor to clear integer registers (set R, 0). 
- Added a new format for instructions where the source register is implied
  and it is same as the destination register. Used for pseudo instructions
  that clear the destination register.

llvm-svn: 25872
 2006-02-01 06:13:50 +00:00
Evan Cheng
6523b2de76 Remove another entry. 
llvm-svn: 25871
 2006-02-01 06:08:48 +00:00
Evan Cheng
efdfb534a7 If a pattern's root node is a constant, its size should be 3 rather than 2. 
llvm-svn: 25870
 2006-02-01 06:06:31 +00:00
Jeff Cohen
8b429890aa Fix VC++ compilation error. 
llvm-svn: 25869
 2006-02-01 04:37:04 +00:00
Chris Lattner
da8766b370 new testcase for the 'ret double folding with load' opzn 
llvm-svn: 25868
 2006-02-01 01:45:02 +00:00
Chris Lattner
0e7d439232 Another regression from the pattern isel 
llvm-svn: 25867
 2006-02-01 01:44:25 +00:00
Chris Lattner
fa15301572 Beef up the interface to inline asm constraint parsing, making it more general, useful, and easier to use. 
llvm-svn: 25866
 2006-02-01 01:29:47 +00:00
Chris Lattner
5549a10792 adjust to changes in InlineAsm interface. Fix a few minor bugs. 
llvm-svn: 25865
 2006-02-01 01:28:23 +00:00
Chris Lattner
fa737604c5 Beef up the interface to inline asm constraint parsing, making it more 
general, useful, and easier to use.

llvm-svn: 25864
 2006-02-01 01:27:37 +00:00
Evan Cheng
27738f635e Return's chain should be matching either the chain produced by the 
value or the chain going into the load.

llvm-svn: 25863
 2006-02-01 01:19:32 +00:00
Chris Lattner
c270dd87a9 another testcase. 
llvm-svn: 25862
 2006-02-01 00:28:12 +00:00
Evan Cheng
329e86ddfa When folding a load into a return of SSE value, check the chain to 
ensure the memory location has not been clobbered.

llvm-svn: 25861
 2006-02-01 00:20:21 +00:00
Evan Cheng
19b80eebb2 Remove an item. It's done. 
llvm-svn: 25860
 2006-02-01 00:15:53 +00:00
Evan Cheng
7eb36f4721 Be smarter about whether to store the SSE return value in memory. If 
it is already available in memory, do a fld directly from there.

llvm-svn: 25859
 2006-01-31 23:19:54 +00:00
Chris Lattner
bb410d0b63 turning these into 'adds' would require extra copies 
llvm-svn: 25858
 2006-01-31 22:59:46 +00:00
Evan Cheng
45ebd632f2 - Allow XMM load (for scalar use) to be folded into ANDP* and XORP*. 
- Use XORP* to implement fneg.

llvm-svn: 25857
 2006-01-31 22:28:30 +00:00
Evan Cheng
6d9aae44f9 Remove entries on fabs and fneg. These are done. 
llvm-svn: 25856
 2006-01-31 22:26:21 +00:00
Evan Cheng
f115c17f23 Allow the specification of explicit alignments for constant pool entries. 
llvm-svn: 25855
 2006-01-31 22:23:14 +00:00
Chris Lattner
5587b270e4 * Fix 80-column violations 
* Rename hasSSE -> hasSSE1 to avoid my continual confusion with 'has any SSE'.
* Add inline asm constraint specification.

llvm-svn: 25854
 2006-01-31 19:43:35 +00:00
Chris Lattner
892fe31362 add info about the inline asm register constraints for PPC 
llvm-svn: 25853
 2006-01-31 19:20:21 +00:00
Evan Cheng
80944be4e7 Allow custom lowering of fabs. I forgot to check in this change which 
caused several test failures.

llvm-svn: 25852
 2006-01-31 18:14:25 +00:00
Chris Lattner
b54e4baa26 add a missing break that caused a lot of failures last night :( 
llvm-svn: 25851
 2006-01-31 17:20:06 +00:00
Chris Lattner
b79e962b6b solaris won't clobber an existing symlink with ln -sf apparently 
llvm-svn: 25849
 2006-01-31 16:10:53 +00:00
Nate Begeman
7a83bb4285 Codegen 
bool %test(int %X) {
  %Y = seteq int %X, 13
  ret bool %Y
}

as

_test:
        addi r2, r3, -13
        cntlzw r2, r2
        srwi r3, r2, 5
        blr

rather than

_test:
        cmpwi cr7, r3, 13
        mfcr r2
        rlwinm r3, r2, 31, 31, 31
        blr

This has very little effect on most code, but speeds up analyzer 23% and
mason 11%

llvm-svn: 25848
 2006-01-31 08:17:29 +00:00
Chris Lattner
798747b798 okay, one more 
llvm-svn: 25847
 2006-01-31 07:45:45 +00:00
Chris Lattner
c831039792 another note 
llvm-svn: 25846
 2006-01-31 07:45:08 +00:00
Chris Lattner
5d718dbc1e More notes 
llvm-svn: 25845
 2006-01-31 07:43:33 +00:00
Chris Lattner
e0d5ccdecf another one 
llvm-svn: 25844
 2006-01-31 07:38:32 +00:00
Chris Lattner
66751830ed add a note 
llvm-svn: 25843
 2006-01-31 07:37:20 +00:00
Chris Lattner
1a0bf14366 add conditional moves of float and double values on int/fp condition codes. 
llvm-svn: 25842
 2006-01-31 07:26:55 +00:00
Chris Lattner
186b5f0887 example nate pointed out 
llvm-svn: 25841
 2006-01-31 07:16:34 +00:00