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Author SHA1 Message Date
Chris Lattner
8a496fcffd Add a new node type, add comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19525 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-13 17:58:35 +00:00
Reid Spencer
41c56c03f7 Turn on LOADABLE_MODULE so that profile.so can be loaded dynamically by 
the JIT.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19524 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-13 16:53:05 +00:00
Reid Spencer
1492709177 Re-enable libprofile now that llvm-ar is working better. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19523 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-13 16:51:19 +00:00
Chris Lattner
636e79a20f Add some really pedantic assertions to the load folding code. Fix a bunch 
of cases where we accidentally emitted a load folded once and unfolded
elsewhere.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19522 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-13 05:53:16 +00:00
Chris Lattner
2f0ca79a75 Do not fold (zero_ext (sign_ext V)) -> (sign_ext V), they are not the same. 
This fixes llvm-test/SingleSource/Regression/C/casts.c


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19519 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-12 18:51:15 +00:00
Chris Lattner
a0bb692b27 We can only fold a load into an op if there is exactly one use of the value. 
Checking to see if the load has two uses is not equivalent, as the chain
value may have zero uses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19518 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-12 18:38:26 +00:00
Chris Lattner
5c88456227 New method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19517 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-12 18:37:47 +00:00
Chris Lattner
b18a2f816c New method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19516 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-12 18:37:33 +00:00
Chris Lattner
2dad454af6 Fix sign extend to long. When coming from sbyte, we used to generate: 
movsbl 4(%esp), %eax
        movl %eax, %edx
        sarl $7, %edx

Now we generate:

        movsbl 4(%esp), %eax
        movl %eax, %edx
        sarl $31, %edx

Which is right.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19515 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-12 18:19:52 +00:00
Chris Lattner
9ffdfb6bae Update comments to indicate CopyFrom/ToReg take physregs as well as vregs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19514 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-12 18:11:36 +00:00
Chris Lattner
9bbd992eb1 Try both ways to fold an add together. This allows us to generate this code 
imul %EAX, %EAX, 400
        add %ECX, %EAX
        add %ESI, DWORD PTR [%ECX + 4*%EDX]
        inc %EDX
        cmp %EDX, 100

instead of this:

        imul %EAX, %EAX, 400
        add %ECX, %EAX
        mov %EAX, %EDX
        shl %EAX, 2
        add %ECX, %EAX
        add %ESI, DWORD PTR [%ECX]
        inc %EDX
        cmp %EDX, 100


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19513 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-12 18:08:53 +00:00
Reid Spencer
3bfbf4ea99 Shut up warnings with GCC 3.4.3 about uninitialized variables. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19512 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-12 14:53:45 +00:00
Chris Lattner
2b9378646d Fix a major miscompilation where we were overwriting the scale reg. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19511 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-12 07:33:20 +00:00
Chris Lattner
48034fd9f1 Do not use the type of the RHS constant to determine the type of the operation. 
This fails for shifts because the constant is always 8 bits.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19508 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-12 05:22:07 +00:00
Chris Lattner
a23ccfb124 Do not lose the offset from teh global when peephole optimizing instructions. 
This fixes FreeBench/pcompress


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19507 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-12 05:17:28 +00:00
Chris Lattner
507bdf9488 Silence VC++ warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19506 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-12 04:51:37 +00:00
Jeff Cohen
bf7c1521f5 Add new file to Visual Studio CodeGen project 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19505 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-12 04:32:42 +00:00
Jeff Cohen
603fea9eb6 Fix C++ more compilatiom errors 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19504 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-12 04:29:05 +00:00
Chris Lattner
a56cea4495 Fix a compile error with VC++, which things that static const arrays need 
to be dynamically initialized. :(


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19503 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-12 04:23:22 +00:00
Chris Lattner
7dbcb75b15 Fix a bug that caused us to crash on povray. We weren't emitting an FP_REG_KILL into a block that had a successor with a FP PHI node. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19502 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-12 04:21:28 +00:00
Chris Lattner
e11a9a93a8 Print a load of a null pointer (in intel mode) like this: 
mov %AX, WORD PTR [0]

instead of like this:

        mov %AX, WORD PTR []


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19501 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-12 04:07:11 +00:00
Chris Lattner
9f2cb3da48 Print a load of a null pointer like this: 
movw 0, %ax

instead of like this:

        movw , %ax


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19500 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-12 04:05:19 +00:00
Chris Lattner
085c9955ca Fix a crash compiling povray on UINT_TO_FP from i16. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19499 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-12 04:00:00 +00:00
Chris Lattner
7944d9d995 Add an option to view the selection dags as they are generated. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19498 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-12 03:41:21 +00:00
Misha Brukman
9a6127504a Use and print out BuildStatus, we don't always have build errors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19497 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-12 03:31:38 +00:00
Chris Lattner
4292830fe5 There are no [mem] op= reg instructions for FP, so remove their entries. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19496 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-12 03:16:09 +00:00
Chris Lattner
db8c368d7b Fix a bug where we didn't insert FP_REG_KILL instructions into MBB's that 
contain FP PHI nodes but no other FP defining instructions.  This fixes
183.equake


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19495 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-12 02:57:10 +00:00
Chris Lattner
afce4306ec Fold TRUNCATE (LOAD P) into a smaller load from P. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19494 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-12 02:19:06 +00:00
Chris Lattner
ef6806c979 Be more careful about order of arg evalution for CopyToReg nodes. This shrinks 
256.bzip2 from 7142 to 7103 lines of .s file.

Second, add initial support for folding loads into compares, though this code
is dynamically dead for now. :(


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19493 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-12 02:02:48 +00:00
Chris Lattner
7ea64f5d12 Fold some more [mem] op= val operators. This allows us to things like this 
several times in 256.bzip2:

        mov %EAX, DWORD PTR [%ESP + 204]
-       mov %EAX, DWORD PTR [%EAX]
-       or %EAX, 2097152
-       mov %ECX, DWORD PTR [%ESP + 204]
-       mov DWORD PTR [%ECX], %EAX
+       or DWORD PTR [%EAX], 2097152


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19492 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-12 01:28:00 +00:00
Chris Lattner
dbba22fa2a Fold loads into sign/zero extends. instead of: 
mov %AL, BYTE PTR [%EDX + l18_length_code]
  movzx %EAX, %AL

Emit:

  movzx %EAX, BYTE PTR [%EDX + l18_length_code]


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19489 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-11 23:33:00 +00:00
Chris Lattner
837caa7223 Comment out debug code :) 
Select [mem] += Val operations.  For constants, we used to get:

  mov %ECX, -32768
  add %ECX, DWORD PTR [l4_match_start]
  mov DWORD PTR [l4_match_start], %ECX

Now we get:

  add DWORD PTR [l4_match_start], -32768

For other values we used to get:

  mov %EBP, %EDI   ;; because the add destroys the value
  add %EBP, DWORD PTR [l4_input_len]
  mov DWORD PTR [l4_input_len], %EBP

now we get:

  add DWORD PTR [l4_input_len], %EDI

Both of these use less registers than the alternative, are faster and smaller.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19488 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-11 23:21:30 +00:00
Chris Lattner
5f75d9a88c Handle the global address case here, not just the offset case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19487 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-11 22:58:43 +00:00
Chris Lattner
c4b6a78980 Treat int constants as not requiring a register, since they are almost always 
folded into an instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19486 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-11 22:29:12 +00:00
Chris Lattner
c871e1d56f Print the value types in the nodes of the graph 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19485 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-11 22:21:04 +00:00
Chris Lattner
f1fdacae8c add an assertion, avoid creating copyfromreg/copytoreg pairs that are the 
same for PHI nodes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19484 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-11 22:03:46 +00:00
Chris Lattner
a5ade060db * Factor a bunch of binary operator cases into shared code. 
* Fold loads into Add, sub, and, or, xor and mul when possible.
* Codegen shl X, 1 as add X, X


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19483 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-11 21:19:59 +00:00
Chris Lattner
7abf820182 Clear the whole array, always. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19482 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-11 20:25:26 +00:00
Misha Brukman
2bbea35ce9 No need to repeat the word build' since it's under Build status' 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19481 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-11 19:51:24 +00:00
Chris Lattner
947d544e29 Fold multiplies by 3,5,9 into addressing modes when possible. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19480 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-11 19:37:02 +00:00
Misha Brukman
7f5875a56a We don't always have build errors, so call it status', not error' 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19479 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-11 18:27:16 +00:00
Chris Lattner
64da653ba9 Squelch optimized warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19475 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-11 17:46:49 +00:00
Reid Spencer
1aa2649fdc Fix the documentation for executeAndWait so the argument comments are 
actually attributed to the arguments by doxygen.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19473 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-11 06:37:27 +00:00
Chris Lattner
51a263434a Instead of generating stuff like this: 
mov %ECX, %EAX
        add %ECX, 32768
        mov %SI, WORD PTR [2*%ECX + l13_prev]

Generate this:

        mov %SI, WORD PTR [2*%ECX + l13_prev + 65536]

This occurs when you have a GEP instruction where an index is
"something + imm".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19472 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-11 06:36:20 +00:00
Reid Spencer
5a069f5a7e Make the construction of doxygen documentation a repeatable process 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19469 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-11 06:26:27 +00:00
Chris Lattner
31805bf2b6 Implement MEMCPY natively in terms of rep movs* 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19468 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-11 06:19:26 +00:00
Chris Lattner
989de030c4 Implement memset -> rep stos* 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19467 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-11 06:14:36 +00:00
Chris Lattner
795069dd38 Announce that we don't support mem ops yet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19466 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-11 05:57:36 +00:00
Chris Lattner
e1bd822ddb Teach legalize to lower MEMSET/MEMCPY/MEMMOVE operations if the target 
does not support them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19465 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-11 05:57:22 +00:00
Chris Lattner
4c633e82f6 Print new operations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19464 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-11 05:57:01 +00:00