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Author SHA1 Message Date
Andrew Lenharth
10d7f9a33f test cmov immediate form 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25881 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 19:36:52 +00:00
Chris Lattner
1cf9d961b2 add a note, ya knoe 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25880 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 19:12:23 +00:00
Nate Begeman
da06e9e665 *** empty log message *** 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25879 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 19:05:15 +00:00
Chris Lattner
4e4b576e2e 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25878 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 18:59:47 +00:00
Chris Lattner
20ea062192 Finegrainify namespacification 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25877 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 18:10:56 +00:00
Chris Lattner
5a7efc9d4f add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25876 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 17:54:23 +00:00
Nate Begeman
750ac1bdfa Fix some of the stuff in the PPC README file, and clean up legalization 
of the SELECT_CC, BR_CC, and BRTWOWAY_CC nodes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25875 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 07:19:44 +00:00
Chris Lattner
1f7c6302be add a note, I'll take care of this after nate commits his big patch 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25873 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 06:40:32 +00:00
Evan Cheng
3c55c54a87 - 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25872 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 06:13:50 +00:00
Evan Cheng
214a79423f Remove another entry. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25871 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 06:08:48 +00:00
Evan Cheng
657416cfba If a pattern's root node is a constant, its size should be 3 rather than 2. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25870 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 06:06:31 +00:00
Jeff Cohen
09f0bd39b1 Fix VC++ compilation error. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25869 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 04:37:04 +00:00
Chris Lattner
faa60106f1 new testcase for the 'ret double folding with load' opzn 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25868 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 01:45:02 +00:00
Chris Lattner
3e1d5e5ea3 Another regression from the pattern isel 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25867 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 01:44:25 +00:00
Chris Lattner
a55079a5cc Beef up the interface to inline asm constraint parsing, making it more general, useful, and easier to use. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25866 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 01:29:47 +00:00
Chris Lattner
2cc2f66c25 adjust to changes in InlineAsm interface. Fix a few minor bugs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25865 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 01:28:23 +00:00
Chris Lattner
e202a253b1 Beef up the interface to inline asm constraint parsing, making it more 
general, useful, and easier to use.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25864 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 01:27:37 +00:00
Evan Cheng
760df29881 Return's chain should be matching either the chain produced by the 
value or the chain going into the load.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25863 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 01:19:32 +00:00
Chris Lattner
0ddc18047d another testcase. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25862 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 00:28:12 +00:00
Evan Cheng
0d084c9e4a When folding a load into a return of SSE value, check the chain to 
ensure the memory location has not been clobbered.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25861 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 00:20:21 +00:00
Evan Cheng
4ccf4c0d0b Remove an item. It's done. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25860 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 00:15:53 +00:00
Evan Cheng
0e8671bf4a 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25859 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 23:19:54 +00:00
Chris Lattner
bb1d528aa6 turning these into 'adds' would require extra copies 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25858 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 22:59:46 +00:00
Evan Cheng
223547ab31 - Allow XMM load (for scalar use) to be folded into ANDP* and XORP*. 
- Use XORP* to implement fneg.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25857 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 22:28:30 +00:00
Evan Cheng
598463fde4 Remove entries on fabs and fneg. These are done. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25856 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 22:26:21 +00:00
Evan Cheng
b8973bd8f5 Allow the specification of explicit alignments for constant pool entries. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25855 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 22:23:14 +00:00
Chris Lattner
259e97cc72 * Fix 80-column violations 
* Rename hasSSE -> hasSSE1 to avoid my continual confusion with 'has any SSE'.
* Add inline asm constraint specification.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25854 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 19:43:35 +00:00
Chris Lattner
ddc787dfdc add info about the inline asm register constraints for PPC 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25853 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 19:20:21 +00:00
Evan Cheng
59ad781e01 Allow custom lowering of fabs. I forgot to check in this change which 
caused several test failures.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25852 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 18:14:25 +00:00
Chris Lattner
c03468bafa add a missing break that caused a lot of failures last night :( 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25851 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 17:20:06 +00:00
Chris Lattner
d9aadd4d15 solaris won't clobber an existing symlink with ln -sf apparently 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25849 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 16:10:53 +00:00
Nate Begeman
4477590ef6 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%


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25848 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 08:17:29 +00:00
Chris Lattner
a34b898bc0 okay, one more 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25847 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 07:45:45 +00:00
Chris Lattner
fabec5bcb5 another note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25846 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 07:45:08 +00:00
Chris Lattner
76e7a441cf More notes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25845 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 07:43:33 +00:00
Chris Lattner
a45b4925e1 another one 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25844 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 07:38:32 +00:00
Chris Lattner
302601c343 add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25843 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 07:37:20 +00:00
Chris Lattner
af370f7c0c add conditional moves of float and double values on int/fp condition codes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25842 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 07:26:55 +00:00
Chris Lattner
83e64baaef example nate pointed out 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25841 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 07:16:34 +00:00
Chris Lattner
7a4d2913ea treat conditional branches the same way as conditional moves (giving them 
an operand that contains the condcode), making things significantly simpler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25840 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 06:56:30 +00:00
Chris Lattner
6788faa06a compactify all of the integer conditional moves into one instruction that takes 
a CC as an operand.  Much smaller, much happier.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25839 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 06:49:09 +00:00
Chris Lattner
97f91027e6 Add immediate forms of integer cmovs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25838 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 06:24:29 +00:00
Chris Lattner
749d6fadf8 Shrinkify 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25837 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 06:18:16 +00:00
Chris Lattner
273d463bef implement test/Regression/TableGen/DagIntSubst.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25836 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 06:02:35 +00:00
Chris Lattner
5def058f38 new testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25835 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 06:01:40 +00:00
Chris Lattner
6dc83c777d Add the full complement of conditional moves of integer registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25834 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 05:26:36 +00:00
Chris Lattner
86638b94c1 Compile this: 
void %X(int %A) {
        %C = setlt int %A, 123          ; <bool> [#uses=1]
        br bool %C, label %T, label %F

T:              ; preds = %0
        call int %main( int 0 )         ; <int>:0 [#uses=0]
        ret void

F:              ; preds = %0
        ret void
}

to this:

X:
        save -96, %o6, %o6
        subcc %i0, 122, %l0
        bg .LBBX_2      ! F
        nop
...

not this:

X:
        save -96, %o6, %o6
        sethi 0, %l0
        or %g0, 1, %l1
        subcc %i0, 122, %l2
        bg .LBBX_4      !
        nop
.LBBX_3:        !
        or %g0, %l0, %l1
.LBBX_4:        !
        subcc %l1, 0, %l0
        bne .LBBX_2     ! F
        nop


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25833 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 05:05:52 +00:00
Chris Lattner
19c5c4cca9 Only insert an AND when converting from BR_COND to BRCC if needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25832 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 05:04:52 +00:00
Evan Cheng
ef6ffb17c7 Added custom lowering of fabs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25831 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 03:14:29 +00:00
Chris Lattner
56b6964473 add the 'lucas' optimization 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25830 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 02:55:28 +00:00