oota-llvm.git
19 years agoRe-enable libprofile now that llvm-ar is working better.
Reid Spencer [Thu, 13 Jan 2005 16:51:19 +0000 (16:51 +0000)]
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

19 years agoAdd some really pedantic assertions to the load folding code. Fix a bunch
Chris Lattner [Thu, 13 Jan 2005 05:53:16 +0000 (05:53 +0000)]
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

19 years agoDo not fold (zero_ext (sign_ext V)) -> (sign_ext V), they are not the same.
Chris Lattner [Wed, 12 Jan 2005 18:51:15 +0000 (18:51 +0000)]
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

19 years agoWe can only fold a load into an op if there is exactly one use of the value.
Chris Lattner [Wed, 12 Jan 2005 18:38:26 +0000 (18:38 +0000)]
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

19 years agoNew method
Chris Lattner [Wed, 12 Jan 2005 18:37:47 +0000 (18:37 +0000)]
New method

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19517 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoNew method.
Chris Lattner [Wed, 12 Jan 2005 18:37:33 +0000 (18:37 +0000)]
New method.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19516 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix sign extend to long. When coming from sbyte, we used to generate:
Chris Lattner [Wed, 12 Jan 2005 18:19:52 +0000 (18:19 +0000)]
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

19 years agoUpdate comments to indicate CopyFrom/ToReg take physregs as well as vregs.
Chris Lattner [Wed, 12 Jan 2005 18:11:36 +0000 (18:11 +0000)]
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

19 years agoTry both ways to fold an add together. This allows us to generate this code
Chris Lattner [Wed, 12 Jan 2005 18:08:53 +0000 (18:08 +0000)]
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

19 years agoShut up warnings with GCC 3.4.3 about uninitialized variables.
Reid Spencer [Wed, 12 Jan 2005 14:53:45 +0000 (14:53 +0000)]
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

19 years agoFix a major miscompilation where we were overwriting the scale reg.
Chris Lattner [Wed, 12 Jan 2005 07:33:20 +0000 (07:33 +0000)]
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

19 years agoDo not use the type of the RHS constant to determine the type of the operation.
Chris Lattner [Wed, 12 Jan 2005 05:22:07 +0000 (05:22 +0000)]
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

19 years agoDo not lose the offset from teh global when peephole optimizing instructions.
Chris Lattner [Wed, 12 Jan 2005 05:17:28 +0000 (05:17 +0000)]
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

19 years agoSilence VC++ warnings.
Chris Lattner [Wed, 12 Jan 2005 04:51:37 +0000 (04:51 +0000)]
Silence VC++ warnings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19506 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd new file to Visual Studio CodeGen project
Jeff Cohen [Wed, 12 Jan 2005 04:32:42 +0000 (04:32 +0000)]
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

19 years agoFix C++ more compilatiom errors
Jeff Cohen [Wed, 12 Jan 2005 04:29:05 +0000 (04:29 +0000)]
Fix C++ more compilatiom errors

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19504 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix a compile error with VC++, which things that static const arrays need
Chris Lattner [Wed, 12 Jan 2005 04:23:22 +0000 (04:23 +0000)]
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

19 years agoFix a bug that caused us to crash on povray. We weren't emitting an FP_REG_KILL...
Chris Lattner [Wed, 12 Jan 2005 04:21:28 +0000 (04:21 +0000)]
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

19 years agoPrint a load of a null pointer (in intel mode) like this:
Chris Lattner [Wed, 12 Jan 2005 04:07:11 +0000 (04:07 +0000)]
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

19 years agoPrint a load of a null pointer like this:
Chris Lattner [Wed, 12 Jan 2005 04:05:19 +0000 (04:05 +0000)]
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

19 years agoFix a crash compiling povray on UINT_TO_FP from i16.
Chris Lattner [Wed, 12 Jan 2005 04:00:00 +0000 (04:00 +0000)]
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

19 years agoAdd an option to view the selection dags as they are generated.
Chris Lattner [Wed, 12 Jan 2005 03:41:21 +0000 (03:41 +0000)]
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

19 years agoUse and print out BuildStatus, we don't always have build errors.
Misha Brukman [Wed, 12 Jan 2005 03:31:38 +0000 (03:31 +0000)]
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

19 years agoThere are no [mem] op= reg instructions for FP, so remove their entries.
Chris Lattner [Wed, 12 Jan 2005 03:16:09 +0000 (03:16 +0000)]
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

19 years agoFix a bug where we didn't insert FP_REG_KILL instructions into MBB's that
Chris Lattner [Wed, 12 Jan 2005 02:57:10 +0000 (02:57 +0000)]
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

19 years agoFold TRUNCATE (LOAD P) into a smaller load from P.
Chris Lattner [Wed, 12 Jan 2005 02:19:06 +0000 (02:19 +0000)]
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

19 years agoBe more careful about order of arg evalution for CopyToReg nodes. This shrinks
Chris Lattner [Wed, 12 Jan 2005 02:02:48 +0000 (02:02 +0000)]
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

19 years agoFold some more [mem] op= val operators. This allows us to things like this
Chris Lattner [Wed, 12 Jan 2005 01:28:00 +0000 (01:28 +0000)]
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

19 years agoFold loads into sign/zero extends. instead of:
Chris Lattner [Tue, 11 Jan 2005 23:33:00 +0000 (23:33 +0000)]
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

19 years agoComment out debug code :)
Chris Lattner [Tue, 11 Jan 2005 23:21:30 +0000 (23:21 +0000)]
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

19 years agoHandle the global address case here, not just the offset case.
Chris Lattner [Tue, 11 Jan 2005 22:58:43 +0000 (22:58 +0000)]
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

19 years agoTreat int constants as not requiring a register, since they are almost always
Chris Lattner [Tue, 11 Jan 2005 22:29:12 +0000 (22:29 +0000)]
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

19 years agoPrint the value types in the nodes of the graph
Chris Lattner [Tue, 11 Jan 2005 22:21:04 +0000 (22:21 +0000)]
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

19 years agoadd an assertion, avoid creating copyfromreg/copytoreg pairs that are the
Chris Lattner [Tue, 11 Jan 2005 22:03:46 +0000 (22:03 +0000)]
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

19 years ago* Factor a bunch of binary operator cases into shared code.
Chris Lattner [Tue, 11 Jan 2005 21:19:59 +0000 (21:19 +0000)]
* 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

19 years agoClear the whole array, always.
Chris Lattner [Tue, 11 Jan 2005 20:25:26 +0000 (20:25 +0000)]
Clear the whole array, always.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19482 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoNo need to repeat the word `build' since it's under `Build status'
Misha Brukman [Tue, 11 Jan 2005 19:51:24 +0000 (19:51 +0000)]
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

19 years agoFold multiplies by 3,5,9 into addressing modes when possible.
Chris Lattner [Tue, 11 Jan 2005 19:37:02 +0000 (19:37 +0000)]
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

19 years agoWe don't always have build errors, so call it `status', not `error'
Misha Brukman [Tue, 11 Jan 2005 18:27:16 +0000 (18:27 +0000)]
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

19 years agoSquelch optimized warning.
Chris Lattner [Tue, 11 Jan 2005 17:46:49 +0000 (17:46 +0000)]
Squelch optimized warning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19475 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix the documentation for executeAndWait so the argument comments are
Reid Spencer [Tue, 11 Jan 2005 06:37:27 +0000 (06:37 +0000)]
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

19 years agoInstead of generating stuff like this:
Chris Lattner [Tue, 11 Jan 2005 06:36:20 +0000 (06:36 +0000)]
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

19 years agoMake the construction of doxygen documentation a repeatable process
Reid Spencer [Tue, 11 Jan 2005 06:26:27 +0000 (06:26 +0000)]
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

19 years agoImplement MEMCPY natively in terms of rep movs*
Chris Lattner [Tue, 11 Jan 2005 06:19:26 +0000 (06:19 +0000)]
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

19 years agoImplement memset -> rep stos*
Chris Lattner [Tue, 11 Jan 2005 06:14:36 +0000 (06:14 +0000)]
Implement memset -> rep stos*

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19467 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAnnounce that we don't support mem ops yet.
Chris Lattner [Tue, 11 Jan 2005 05:57:36 +0000 (05:57 +0000)]
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

19 years agoTeach legalize to lower MEMSET/MEMCPY/MEMMOVE operations if the target
Chris Lattner [Tue, 11 Jan 2005 05:57:22 +0000 (05:57 +0000)]
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

19 years agoPrint new operations.
Chris Lattner [Tue, 11 Jan 2005 05:57:01 +0000 (05:57 +0000)]
Print new operations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19464 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoTurn memset/memcpy/memmove into the corresponding operations.
Chris Lattner [Tue, 11 Jan 2005 05:56:49 +0000 (05:56 +0000)]
Turn memset/memcpy/memmove into the corresponding operations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19463 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd MEMSET/MEMCPY/MEMMOVE operations. Fix a really bad bug in the vector
Chris Lattner [Tue, 11 Jan 2005 05:56:17 +0000 (05:56 +0000)]
Add MEMSET/MEMCPY/MEMMOVE operations.  Fix a really bad bug in the vector
SDNode ctor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19462 91177308-0d34-0410-b5e6-96231b3b80d8

19 years ago* Add the use of LOADABLE_MODULE=1 in the makefile example
Reid Spencer [Tue, 11 Jan 2005 05:16:23 +0000 (05:16 +0000)]
* Add the use of LOADABLE_MODULE=1 in the makefile example
* Change the names of the resulting module to Hello instead of libHello
* Change lib/Debug -> Debug/lib per new makefile implementation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19459 91177308-0d34-0410-b5e6-96231b3b80d8

19 years ago* Describe the LOADABLE_MODULE feature
Reid Spencer [Tue, 11 Jan 2005 05:12:54 +0000 (05:12 +0000)]
* Describe the LOADABLE_MODULE feature
* Get rid of non-compliant <font> elements (how did that get in there?)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19458 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoTeach the address selector to make 'reg+reg' addressing modes.
Chris Lattner [Tue, 11 Jan 2005 04:40:19 +0000 (04:40 +0000)]
Teach the address selector to make 'reg+reg' addressing modes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19457 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd the LOADABLE_MODULE=1 directive to indicate that this shared library is
Reid Spencer [Tue, 11 Jan 2005 04:33:32 +0000 (04:33 +0000)]
Add the LOADABLE_MODULE=1 directive to indicate that this shared library is
intended to be a dlopenable module and not a "plain" shared library.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19456 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoEmit NOT instructions.
Chris Lattner [Tue, 11 Jan 2005 04:31:30 +0000 (04:31 +0000)]
Emit NOT instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19455 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoImplement the LOADABLE_MODULE option when building a shared library. This
Reid Spencer [Tue, 11 Jan 2005 04:31:07 +0000 (04:31 +0000)]
Implement the LOADABLE_MODULE option when building a shared library. This
passes the -module option on the libtool command line to ensure that the
shared library being built can be dlopened and dlsym can work on that
module. LOADABLE_MODULE should be sent only in conjunction with the
SHARED_LIBRARY directive. It should generally be used for any module that
is intended to be the target of an LLVM -load option. Note that loadable
modules will not have the lib prefix but otherwise look like shared
libraries. This is per the libtool recommendations and prevents these
special shared libraries from being linked in via -l option to the linker.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19454 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoshift X, 0 -> X
Chris Lattner [Tue, 11 Jan 2005 04:25:13 +0000 (04:25 +0000)]
shift X, 0 -> X

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19453 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix a bug emitting branches that broke a lot of programs.
Chris Lattner [Tue, 11 Jan 2005 04:06:27 +0000 (04:06 +0000)]
Fix a bug emitting branches that broke a lot of programs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19452 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoBe more careful where we set ContainsFPCode. We were missing a set in the
Chris Lattner [Tue, 11 Jan 2005 03:50:45 +0000 (03:50 +0000)]
Be more careful where we set ContainsFPCode.  We were missing a set in the
int -> FP casting code.  Note that we don't have to set it for FP operations
that take FP values as operands: whatever produces the FP value will set the
flag.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19451 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix a major bug in setcc/cmov folding, where we accidentally
Chris Lattner [Tue, 11 Jan 2005 03:37:59 +0000 (03:37 +0000)]
Fix a major bug in setcc/cmov folding, where we accidentally
inverted the sense of the comparison.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19450 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoTake register pressure into account when we have to decide whether to
Chris Lattner [Tue, 11 Jan 2005 03:11:44 +0000 (03:11 +0000)]
Take register pressure into account when we have to decide whether to
evaluate the LHS or the RHS of an operation first.  This causes good things
to happen.  For example, instead of compiling a loop to this:

.LBBstrength_result7_1: # loopentry
        movl 16(%esp), %edi
        movl (%edi), %edi             ;;; LOAD
        movl (%ecx), %ebx
        movl $2, (%eax,%ebx,4)
        movl (%edx), %ebx
        movl %esi, %ebp
        addl $21, %ebp
        addl $42, %esi
        cmpl $0, %edi                 ;;; USE
        cmovne %esi, %ebp
        cmpl %ebp, %ebx
        movl %ebp, %esi
        jg .LBBstrength_result7_1

We now compile it to this:

.LBBstrength_result7_1: # loopentry
        movl %edi, %ebx
        addl $42, %ebx
        addl $21, %edi
        movl (%ecx), %ebp              ;; LOAD
        cmpl $0, %ebp                  ;; USE
        cmovne %ebx, %edi
        movl (%edx), %ebx
        movl $2, (%eax,%ebx,4)
        movl (%esi), %ebx
        cmpl %edi, %ebx
        jg .LBBstrength_result7_1

Which reduces register pressure enough (in this case) to avoid spilling in the
loop.

As another example, consider the CodeGen/X86/regpressure.ll testcase.  We
used to generate this code for both cases:

regpressure1:
        subl $32, %esp
        movl %esi, 12(%esp)
        movl %edi, 8(%esp)
        movl %ebx, 4(%esp)
        movl %ebp, (%esp)
        movl 36(%esp), %ecx
        movl (%ecx), %eax
        movl 4(%ecx), %edx
        movl %edx, 24(%esp)
        movl 8(%ecx), %edx
        movl %edx, 16(%esp)
        movl 12(%ecx), %edx
        movl 16(%ecx), %esi
        movl 20(%ecx), %edi
        movl 24(%ecx), %ebx
        movl %ebx, 28(%esp)
        movl 28(%ecx), %ebx
        movl 32(%ecx), %ebp
        movl %ebp, 20(%esp)
        movl 36(%ecx), %ecx
        imull 24(%esp), %eax
        imull 16(%esp), %eax
        imull %edx, %eax
        imull %esi, %eax
        imull %edi, %eax
        imull 28(%esp), %eax
        imull %ebx, %eax
        imull 20(%esp), %eax
        imull %ecx, %eax
        movl (%esp), %ebp
        movl 4(%esp), %ebx
        movl 8(%esp), %edi
        movl 12(%esp), %esi
        addl $32, %esp
        ret

This code is basically trying to do all of the loads first, then execute all
of the multiplies.  Because we run out of registers, lots of spill code happens.
We now generate this code for both cases:

regpressure1:
        movl 4(%esp), %ecx
        movl (%ecx), %eax
        movl 4(%ecx), %edx
        imull %edx, %eax
        movl 8(%ecx), %edx
        imull %edx, %eax
        movl 12(%ecx), %edx
        imull %edx, %eax
        movl 16(%ecx), %edx
        imull %edx, %eax
        movl 20(%ecx), %edx
        imull %edx, %eax
        movl 24(%ecx), %edx
        imull %edx, %eax
        movl 28(%ecx), %edx
        imull %edx, %eax
        movl 32(%ecx), %edx
        imull %edx, %eax
        movl 36(%ecx), %ecx
        imull %ecx, %eax
        ret

which is much nicer (when we fold loads into the muls it will be even better).
The old instruction selector used to produce the good code for regpressure1
but not for regpressure2, as it depended on the order of operations in the
LLVM code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19449 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoThe pattern isel is aggressively codegen'ing all of the loads in these
Chris Lattner [Tue, 11 Jan 2005 03:05:03 +0000 (03:05 +0000)]
The pattern isel is aggressively codegen'ing all of the loads in these
functions together at the start of the basic block, causing massive spillage.
The old isel codegened the loads wherever they happened to land, so it
generated good code for the first case, but bad code for the second.

We really want the pattern isel to generate (the same) good code for both.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19448 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoPrint SelectionDAGs bottom up, include extra info in the node labels
Chris Lattner [Tue, 11 Jan 2005 00:34:33 +0000 (00:34 +0000)]
Print SelectionDAGs bottom up, include extra info in the node labels

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19447 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd support for bottom-up graphs.
Chris Lattner [Tue, 11 Jan 2005 00:24:59 +0000 (00:24 +0000)]
Add support for bottom-up graphs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19446 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd a marker for the graph root.
Chris Lattner [Mon, 10 Jan 2005 23:52:04 +0000 (23:52 +0000)]
Add a marker for the graph root.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19445 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoPut the operation name in each node, put the function name on the graph.
Chris Lattner [Mon, 10 Jan 2005 23:26:00 +0000 (23:26 +0000)]
Put the operation name in each node, put the function name on the graph.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19444 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoSplit out SDNode::getOperationName into its own method.
Chris Lattner [Mon, 10 Jan 2005 23:25:25 +0000 (23:25 +0000)]
Split out SDNode::getOperationName into its own method.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19443 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd a helper method.
Chris Lattner [Mon, 10 Jan 2005 23:25:04 +0000 (23:25 +0000)]
Add a helper method.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19442 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoImplement initial selectiondag printing support. This gets us a nice
Chris Lattner [Mon, 10 Jan 2005 23:08:40 +0000 (23:08 +0000)]
Implement initial selectiondag printing support.  This gets us a nice
graph with no labels! :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19441 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd support for graph operations, and add a viewGraph method to SelectionDAG.
Chris Lattner [Mon, 10 Jan 2005 23:05:53 +0000 (23:05 +0000)]
Add support for graph operations, and add a viewGraph method to SelectionDAG.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19440 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd a helper method
Chris Lattner [Mon, 10 Jan 2005 23:05:07 +0000 (23:05 +0000)]
Add a helper method

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19439 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFold setcc instructions into selects.
Chris Lattner [Mon, 10 Jan 2005 22:10:13 +0000 (22:10 +0000)]
Fold setcc instructions into selects.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19438 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd conditional moves for the parity flag.
Chris Lattner [Mon, 10 Jan 2005 22:09:33 +0000 (22:09 +0000)]
Add conditional moves for the parity flag.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19437 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoLower to the correct functions. This fixes FreeBench/fourinarow
Chris Lattner [Mon, 10 Jan 2005 21:02:37 +0000 (21:02 +0000)]
Lower to the correct functions.  This fixes FreeBench/fourinarow

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19436 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoImplement 8-bit multiply for X86.
Chris Lattner [Mon, 10 Jan 2005 20:55:48 +0000 (20:55 +0000)]
Implement 8-bit multiply for X86.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19435 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoRework constant pool handling so that function constant pools are no longer
Chris Lattner [Mon, 10 Jan 2005 18:23:22 +0000 (18:23 +0000)]
Rework constant pool handling so that function constant pools are no longer
leaked to the system.  Now they are destroyed with the JITMemoryManager is
destroyed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19434 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoApply feedback from Chris.
Jeff Cohen [Mon, 10 Jan 2005 04:23:32 +0000 (04:23 +0000)]
Apply feedback from Chris.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19432 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoApply feed back from Chris:
Jeff Cohen [Mon, 10 Jan 2005 03:56:27 +0000 (03:56 +0000)]
Apply feed back from Chris:
  1. Rename createLoaderPass to CreateProfileLoaderPass
  2. Opt shouldn't use the pass registered in CodeGen.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19431 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoImplement a couple of more simplifications. This lets us codegen:
Chris Lattner [Mon, 10 Jan 2005 02:03:02 +0000 (02:03 +0000)]
Implement a couple of more simplifications.  This lets us codegen:

int test2(int * P, int* Q, int A, int B) {
        return P+A == P;
}

into:

test2:
        movl 4(%esp), %eax
        movl 12(%esp), %eax
        shll $2, %eax
        cmpl $0, %eax
        sete %al
        movzbl %al, %eax
        ret

instead of:

test2:
        movl 4(%esp), %eax
        movl 12(%esp), %ecx
        leal (%eax,%ecx,4), %ecx
        cmpl %eax, %ecx
        sete %al
        movzbl %al, %eax
        ret

ICC is producing worse code:

test2:
        movl      4(%esp), %eax                                 #8.5
        movl      12(%esp), %edx                                #8.5
        lea       (%edx,%edx), %ecx                             #9.9
        addl      %ecx, %ecx                                    #9.9
        addl      %eax, %ecx                                    #9.9
        cmpl      %eax, %ecx                                    #9.16
        movl      $0, %eax                                      #9.16
        sete      %al                                           #9.16
        ret                                                     #9.16

as is GCC (looks like our old code):

test2:
        movl    4(%esp), %edx
        movl    12(%esp), %eax
        leal    (%edx,%eax,4), %ecx
        cmpl    %edx, %ecx
        sete    %al
        movzbl  %al, %eax
        ret

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19430 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix incorrect constant folds, fixing Stepanov after the SHR patch.
Chris Lattner [Mon, 10 Jan 2005 01:16:03 +0000 (01:16 +0000)]
Fix incorrect constant folds, fixing Stepanov after the SHR patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19429 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoUpdate System project in Visual Studio to reflect renamed files.
Jeff Cohen [Mon, 10 Jan 2005 00:50:11 +0000 (00:50 +0000)]
Update System project in Visual Studio to reflect renamed files.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19428 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoConstant fold shifts, turning this loop:
Chris Lattner [Mon, 10 Jan 2005 00:07:15 +0000 (00:07 +0000)]
Constant fold shifts, turning this loop:

.LBB_Z5test0PdS__3:     # no_exit.1
        fldl data(,%eax,8)
        fldl 24(%esp)
        faddp %st(1)
        fstl 24(%esp)
        incl %eax
        movl $16000, %ecx
        sarl $3, %ecx
        cmpl %eax, %ecx
        fstpl 16(%esp)
        #FP_REG_KILL
        jg .LBB_Z5test0PdS__3   # no_exit.1

into:

.LBB_Z5test0PdS__3:     # no_exit.1
        fldl data(,%eax,8)
        fldl 24(%esp)
        faddp %st(1)
        fstl 24(%esp)
        incl %eax
        cmpl $2000, %eax
        fstpl 16(%esp)
        #FP_REG_KILL
        jl .LBB_Z5test0PdS__3   # no_exit.1

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19427 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoRename Unix/*.cpp and Win32/*.cpp to have a *.inc suffix so that the silly
Reid Spencer [Sun, 9 Jan 2005 23:29:00 +0000 (23:29 +0000)]
Rename Unix/*.cpp and Win32/*.cpp to have a *.inc suffix so that the silly
gdb debugger doesn't get confused on which file it is reading (the one in
lib/System or the one in lib/System/{Win32,Unix})

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19426 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd some folds for == and != comparisons. This allows us to
Chris Lattner [Sun, 9 Jan 2005 20:52:51 +0000 (20:52 +0000)]
Add some folds for == and != comparisons.  This allows us to
codegen this loop in stepanov:

no_exit.i:              ; preds = %entry, %no_exit.i, %then.i, %_Z5checkd.exit
        %i.0.0 = phi int [ 0, %entry ], [ %i.0.0, %no_exit.i ], [ %inc.0, %_Z5checkd.exit ], [ %inc.012, %then.i ]              ; <int> [#uses=3]
        %indvar = phi uint [ %indvar.next, %no_exit.i ], [ 0, %entry ], [ 0, %then.i ], [ 0, %_Z5checkd.exit ]          ; <uint> [#uses=3]
        %result_addr.i.0 = phi double [ %tmp.4.i.i, %no_exit.i ], [ 0.000000e+00, %entry ], [ 0.000000e+00, %then.i ], [ 0.000000e+00, %_Z5checkd.exit ]          ; <double> [#uses=1]
        %first_addr.0.i.2.rec = cast uint %indvar to int                ; <int> [#uses=1]
        %first_addr.0.i.2 = getelementptr [2000 x double]* %data, int 0, uint %indvar           ; <double*> [#uses=1]
        %inc.i.rec = add int %first_addr.0.i.2.rec, 1           ; <int> [#uses=1]
        %inc.i = getelementptr [2000 x double]* %data, int 0, int %inc.i.rec            ; <double*> [#uses=1]
        %tmp.3.i.i = load double* %first_addr.0.i.2             ; <double> [#uses=1]
        %tmp.4.i.i = add double %result_addr.i.0, %tmp.3.i.i            ; <double> [#uses=2]
        %tmp.2.i = seteq double* %inc.i, getelementptr ([2000 x double]* %data, int 0, int 2000)                ; <bool> [#uses=1]
        %indvar.next = add uint %indvar, 1              ; <uint> [#uses=1]
        br bool %tmp.2.i, label %_Z10accumulateIPddET0_T_S2_S1_.exit, label %no_exit.i

To this:

.LBB_Z4testIPddEvT_S1_T0__1:    # no_exit.i
        fldl data(,%eax,8)
        fldl 16(%esp)
        faddp %st(1)
        fstpl 16(%esp)
        incl %eax
        movl %eax, %ecx
        shll $3, %ecx
        cmpl $16000, %ecx
        #FP_REG_KILL
        jne .LBB_Z4testIPddEvT_S1_T0__1 # no_exit.i

instead of this:

.LBB_Z4testIPddEvT_S1_T0__1:    # no_exit.i
        fldl data(,%eax,8)
        fldl 16(%esp)
        faddp %st(1)
        fstpl 16(%esp)
        incl %eax
        leal data(,%eax,8), %ecx
        leal data+16000, %edx
        cmpl %edx, %ecx
        #FP_REG_KILL
        jne .LBB_Z4testIPddEvT_S1_T0__1 # no_exit.i

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19425 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd last four createXxxPass functions
Jeff Cohen [Sun, 9 Jan 2005 20:42:52 +0000 (20:42 +0000)]
Add last four createXxxPass functions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19424 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix VC++ compilation error
Jeff Cohen [Sun, 9 Jan 2005 20:41:56 +0000 (20:41 +0000)]
Fix VC++ compilation error

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19423 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoPrint the DAG out more like a DAG in nested format.
Chris Lattner [Sun, 9 Jan 2005 20:38:33 +0000 (20:38 +0000)]
Print the DAG out more like a DAG in nested format.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19422 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoPrint out nodes sorted by their address to make it easier to find them in a list.
Chris Lattner [Sun, 9 Jan 2005 20:26:36 +0000 (20:26 +0000)]
Print out nodes sorted by their address to make it easier to find them in a list.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19421 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoCodegen (Reg|imm)+&GV as an LEA, because we cannot put it into the immediate field
Chris Lattner [Sun, 9 Jan 2005 20:20:29 +0000 (20:20 +0000)]
Codegen (Reg|imm)+&GV as an LEA, because we cannot put it into the immediate field
of an ADDri (due to current restrictions on MachineOperand :( ).  This allows
us to generate:

        leal Data+16000, %edx

instead of:

        movl $Data, %edx
        addl $16000, %edx

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19420 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd a simple transformation. This allows us to compile one of the inner
Chris Lattner [Sun, 9 Jan 2005 20:09:57 +0000 (20:09 +0000)]
Add a simple transformation.  This allows us to compile one of the inner
loops in stepanov to this:

.LBB_Z5test0PdS__2:     # no_exit.1
        fldl data(,%eax,8)
        fldl 24(%esp)
        faddp %st(1)
        fstl 24(%esp)
        incl %eax
        cmpl $2000, %eax
        fstpl 16(%esp)
        #FP_REG_KILL
        jl .LBB_Z5test0PdS__2

instead of this:

.LBB_Z5test0PdS__2:     # no_exit.1
        fldl data(,%eax,8)
        fldl 24(%esp)
        faddp %st(1)
        fstl 24(%esp)
        incl %eax
        movl $data, %ecx
        movl %ecx, %edx
        addl $16000, %edx
        subl %ecx, %edx
        movl %edx, %ecx
        sarl $2, %ecx
        shrl $29, %ecx
        addl %ecx, %edx
        sarl $3, %edx
        cmpl %edx, %eax
        fstpl 16(%esp)
        #FP_REG_KILL
        jl .LBB_Z5test0PdS__2

The old instruction selector produced:

.LBB_Z5test0PdS__2:     # no_exit.1
        fldl 24(%esp)
        faddl data(,%eax,8)
        fstl 24(%esp)
        movl %eax, %ecx
        incl %ecx
        incl %eax
        leal data+16000, %edx
        movl $data, %edi
        subl %edi, %edx
        movl %edx, %edi
        sarl $2, %edi
        shrl $29, %edi
        addl %edi, %edx
        sarl $3, %edx
        cmpl %edx, %ecx
        fstpl 16(%esp)
        #FP_REG_KILL
        jl .LBB_Z5test0PdS__2   # no_exit.1

Which is even worse!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19419 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix copy and pasto's for FP -> Int. This fixes fldry
Chris Lattner [Sun, 9 Jan 2005 19:49:59 +0000 (19:49 +0000)]
Fix copy and pasto's for FP -> Int.  This fixes fldry

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19418 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix a bug legalizing call instructions (make sure to remember all result
Chris Lattner [Sun, 9 Jan 2005 19:43:23 +0000 (19:43 +0000)]
Fix a bug legalizing call instructions (make sure to remember all result
values), and eliminate some switch statements.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19417 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix a minor bug legalizing dynamic_stackalloc. This allows us to compile
Chris Lattner [Sun, 9 Jan 2005 19:07:54 +0000 (19:07 +0000)]
Fix a minor bug legalizing dynamic_stackalloc.  This allows us to compile
std::__pad<wchar_t, std::char_traits<wchar_t> >::_S_pad(std::ios_base&, wchar_t, wchar_t*, wchar_t const*, int, int, bool)

from libstdc++

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19416 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoTeach legalize to deal with DYNAMIC_STACKALLOC (aka a dynamic llvm alloca)
Chris Lattner [Sun, 9 Jan 2005 19:03:49 +0000 (19:03 +0000)]
Teach legalize to deal with DYNAMIC_STACKALLOC (aka a dynamic llvm alloca)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19415 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoInitial implementation of FP->INT and INT->FP casts
Chris Lattner [Sun, 9 Jan 2005 18:52:44 +0000 (18:52 +0000)]
Initial implementation of FP->INT and INT->FP casts

Also, fix zero_extend from bool to i8, which fixes Shootout/objinst.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19414 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoGet lib/Analysis/DataStructure to compile with VC++
Jeff Cohen [Sun, 9 Jan 2005 04:18:28 +0000 (04:18 +0000)]
Get lib/Analysis/DataStructure to compile with VC++

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19412 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoWorkaround a VC++ bug. Microsoft puts the hash_map class in namespace stdext, but
Jeff Cohen [Sun, 9 Jan 2005 04:13:09 +0000 (04:13 +0000)]
Workaround a VC++ bug.  Microsoft puts the hash_map class in namespace stdext, but
this classes uses a utility function in namespace std.  But Microsoft apparently
assumes everyone will "using namespace std;".  As LLVM doesn't....  Add a
"use std::_Distance;" to get it working.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19411 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix a subtle bug involving constant expr casts from int to fp
Chris Lattner [Sun, 9 Jan 2005 01:49:29 +0000 (01:49 +0000)]
Fix a subtle bug involving constant expr casts from int to fp

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19410 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoHandle static alloca arguments to PHI nodes.
Chris Lattner [Sun, 9 Jan 2005 01:16:24 +0000 (01:16 +0000)]
Handle static alloca arguments to PHI nodes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19409 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoImplement varargs and returnaddress/frameaddress intrinsics. With this
Chris Lattner [Sun, 9 Jan 2005 00:01:27 +0000 (00:01 +0000)]
Implement varargs and returnaddress/frameaddress intrinsics.  With this
patch, all of SingleSource/UnitTests passes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19408 91177308-0d34-0410-b5e6-96231b3b80d8