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Author SHA1 Message Date
Nate Begeman
a2de102a5b add optimized code sequences for setcc x, 0 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16478 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-22 04:40:25 +00:00
Chris Lattner
3d834bf2c3 Do not fold (X + C1 != C2) if there are other users of the add. Doing 
this transformation used to take a loop like this:

int Array[1000];
void test(int X) {
  int i;
  for (i = 0; i < 1000; ++i)
    Array[i] += X;
}

Compiled to LLVM is:

no_exit:                ; preds = %entry, %no_exit
        %indvar = phi uint [ 0, %entry ], [ %indvar.next, %no_exit ]            ; <uint> [#uses=2]
        %tmp.4 = getelementptr [1000 x int]* %Array, int 0, uint %indvar                ; <int*> [#uses=2]
        %tmp.7 = load int* %tmp.4               ; <int> [#uses=1]
        %tmp.9 = add int %tmp.7, %X             ; <int> [#uses=1]
        store int %tmp.9, int* %tmp.4
***     %indvar.next = add uint %indvar, 1              ; <uint> [#uses=2]
***     %exitcond = seteq uint %indvar.next, 1000               ; <bool> [#uses=1]
        br bool %exitcond, label %return, label %no_exit

and turn it into a loop like this:

no_exit:                ; preds = %entry, %no_exit
        %indvar = phi uint [ 0, %entry ], [ %indvar.next, %no_exit ]            ; <uint> [#uses=3]
        %tmp.4 = getelementptr [1000 x int]* %Array, int 0, uint %indvar                ; <int*> [#uses=2]
        %tmp.7 = load int* %tmp.4               ; <int> [#uses=1]
        %tmp.9 = add int %tmp.7, %X             ; <int> [#uses=1]
        store int %tmp.9, int* %tmp.4
***     %indvar.next = add uint %indvar, 1              ; <uint> [#uses=1]
***     %exitcond = seteq uint %indvar, 999             ; <bool> [#uses=1]
        br bool %exitcond, label %return, label %no_exit

Note that indvar.next and indvar can no longer be coallesced.  In machine
code terms, this patch changes this code:

.LBBtest_1:     # no_exit
        mov %EDX, OFFSET Array
        mov %ESI, %EAX
        add %ESI, DWORD PTR [%EDX + 4*%ECX]
        mov %EDX, OFFSET Array
        mov DWORD PTR [%EDX + 4*%ECX], %ESI
        mov %EDX, %ECX
        inc %EDX
        cmp %ECX, 999
        mov %ECX, %EDX
        jne .LBBtest_1  # no_exit

into this:

.LBBtest_1:     # no_exit
        mov %EDX, OFFSET Array
        mov %ESI, %EAX
        add %ESI, DWORD PTR [%EDX + 4*%ECX]
        mov %EDX, OFFSET Array
        mov DWORD PTR [%EDX + 4*%ECX], %ESI
        inc %ECX
        cmp %ECX, 1000
        jne .LBBtest_1  # no_exit

We need better instruction selection to get this:

.LBBtest_1:     # no_exit
        add DWORD PTR [Array + 4*%ECX], EAX
        inc %ECX
        cmp %ECX, 1000
        jne .LBBtest_1  # no_exit

... but at least there is less register juggling


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16473 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-21 21:35:23 +00:00
Alkis Evlogimenos
65cbfa0f37 The real x87 floating point registers should not be allocatable. They 
are only used by the stackifier when transforming FPn register
allocations to the real stack file x87 registers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16472 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-21 21:22:11 +00:00
Misha Brukman
540c82a700 s/ISel/PPC64ISel/ to have unique class names for debugging via gdb because the 
C++ front-end in gcc does not mangle classes in anonymous namespaces correctly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16471 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-21 18:22:33 +00:00
Misha Brukman
a1dca55a3a s/ISel/PPC32ISel/ to have unique class names for debugging via gdb because the 
C++ front-end in gcc does not mangle classes in anonymous namespaces correctly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16470 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-21 18:22:19 +00:00
Misha Brukman
eae1bf10ea s/ISel/X86ISel/ to have unique class names for debugging via gdb because the C++ 
front-end in gcc does not mangle classes in anonymous namespaces correctly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16469 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-21 18:21:21 +00:00
Chris Lattner
8cbee4ea5b Make sure to set the operand list 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16466 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-21 17:30:54 +00:00
Reid Spencer
8b93e7ae4a Fix a problem where the mmap_file test was generating an incorrect test 
program that always failed (wouldn't compile).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16465 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-21 17:14:44 +00:00
Reid Spencer
5d6c4a5581 Change the warning text so that NO warnings are permitted. This is now the 
case since the AC_CONFIG_SUBDIRS problem has been fixed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16464 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-21 17:13:23 +00:00
Reid Spencer
c2186e23b6 Don't attempt to (illegally) configure a subdir if we don't recognize it. 
Instead just create a warning message that says the directory cannot be
configured because it isn't recognized. This also gets rid of a bunch of
warning messages from the auto* tools.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16463 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-21 17:12:35 +00:00
Reid Spencer
91b538024a Fix the program passed to AC_LANG_PROGRAM to be only the BODY of the main 
function, not the whole main function. This problem resulted during
conversion of scripts to the new autoconf standard. The effect was that
the mmap_file test would fail and if it does there is currently an
#ifdef'd #error that causes compilation to fail. Bad, bad, bad.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16462 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-21 17:10:52 +00:00
Misha Brukman
323ed35e4f Thanks to Brad Jones for packed type support! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16461 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-21 16:54:37 +00:00
Misha Brukman
39dccd8130 Thanks to Brad for documentation on adding a DerivedType 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16460 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-21 16:53:29 +00:00
Chris Lattner
e704e49ea7 This is an empty directory 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16459 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-21 16:26:13 +00:00
Chris Lattner
9c15698355 This is a dead directory now 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16458 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-21 16:25:41 +00:00
Reid Spencer
641f7ef4fc Change the name of the "known" module for Java from llvm-java to Java. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16453 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-20 22:14:56 +00:00
Alkis Evlogimenos
7e2315e987 Use the right directory for the Java frontend 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16448 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-20 15:45:36 +00:00
Chris Lattner
79f0c8e4ee Fix potential miscompilations: InstCombine/2004-09-20-BadLoadCombine*.llx 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16447 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-20 10:15:10 +00:00
Chris Lattner
c804d530c5 Two testcases for invalid transformations that instcombine is doing 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16446 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-20 10:14:27 +00:00
Reid Spencer
181e65dff1 Documentation upgrade. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16445 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-20 08:09:36 +00:00
Reid Spencer
9610fc901a Finish the documentation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16444 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-20 08:04:13 +00:00
Reid Spencer
33709e53e4 Tighten up the specification of what counts as a code file. The previous 
specification was too liberal in some areas and missing things in others.
This specification is based on the actual extensions found in the source
tree.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16443 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-20 08:00:09 +00:00
Reid Spencer
b27b78f6a4 Base the implementation on the llvmdo script so that we only have to 
maintain the logic for "what counts as a source file" in one place.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16442 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-20 07:22:23 +00:00
Reid Spencer
8141e37109 Fixed to actually work correctly and be the basis for other tools by 
allowing the set of directories searched to be specified either by the
LLVMDO_DIRS env var or by the -dirs "dirs..." command line option.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16441 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-20 07:21:19 +00:00
Alkis Evlogimenos
7b6ec600c5 Fix loop condition so that we don't decrement off the beginning of the 
list.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16440 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-20 06:42:58 +00:00
Chris Lattner
2ac3f19e90 Don't count .lo files :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16439 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-20 05:01:04 +00:00
Chris Lattner
b12914bfc0 'Pass' should now not be derived from by clients. Instead, they should derive 
from ModulePass.  Instead of implementing Pass::run, then should implement
ModulePass::runOnModule.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16436 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-20 04:48:05 +00:00
Chris Lattner
bba61c07dd 'Pass' should now not be derived from by clients. Instead, they should derive 
from ModulePass.  Instead of implementing Pass::run, then should implement
ModulePass::runOnModule.

Also, fix some undefined behavior, expecting | on booleans to evaluate
left-to-right.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16435 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-20 04:47:19 +00:00
Chris Lattner
68d033cc94 Finegrainify namespacification 
'Pass' should now not be derived from by clients.  Instead, they should derive
from ModulePass.  Instead of implementing Pass::run, then should implement
ModulePass::runOnModule.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16434 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-20 04:44:31 +00:00
Chris Lattner
ded6d0c9fb Prototype more accurately 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16433 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-20 04:43:57 +00:00
Chris Lattner
4b50156049 Prototype these functions more accurately 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16432 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-20 04:43:15 +00:00
Chris Lattner
8e47e7292c Do not prototype any of these passes as returning Pass*. Instead, be specific 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16431 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-20 04:41:39 +00:00
Chris Lattner
f627892e26 'Pass' should now not be derived from by clients. Instead, they should derive 
from ModulePass.  Instead of implementing Pass::run, then should implement
ModulePass::runOnModule.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16430 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-20 04:36:29 +00:00
Chris Lattner
d55c9bf318 Adjust to API changes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16429 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-20 04:35:27 +00:00
Reid Spencer
d232438f54 Put in a #error in the event that we don't have an mmap that can map a file 
into memor. This is just a reminder that the ReadFileIntoAddressSpace
function needs to be properly converted to lib/System and implemented via
read/write if there's no mmap of file support.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16428 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-20 04:13:43 +00:00
Reid Spencer
777ce17d35 Fix problems with AC_FUNC_MMAP_FILE and AC_LINK_USE_R that caused problems 
with correctly recognizing mmap of files and the linker's support of -r.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16427 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-20 04:09:56 +00:00
Reid Spencer
a42b525ea8 Correct the use AC_RUN_IFELSE to ensure it builds programs correctly by 
using the AC_LANG_PROGRAM macro.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16426 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-20 04:08:22 +00:00
Reid Spencer
2e89ae2894 Allow the suffix for shared libraries to be obtained correctly so we can 
build them again.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16425 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-20 03:06:28 +00:00
Reid Spencer
2650835b68 The problem with depending on the internal implementation of third party 
tools is that you break when they change. This is a case in point.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16424 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-20 03:05:46 +00:00
Reid Spencer
9c96c72b84 libtool's name is now back to mklib. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16423 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-20 01:43:00 +00:00
Reid Spencer
e4d18e4d25 Change to support creation of "mklib" instead of "libtool" in builddir. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16422 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-20 01:42:32 +00:00
Reid Spencer
dad130f510 Update the script to generate mklib instead of libtool. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16421 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-20 01:41:24 +00:00
Reid Spencer
2706f8c5cf Adjust the libtool macros so that libtool's name is "mklib". Also, tidy up 
the use of obsolete macros, hopefully making us more compliant on more sys.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16420 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-19 23:53:36 +00:00
Reid Spencer
c1b0d49e61 Various minor cleanups and replacement of obsoleted macro names. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16419 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-19 23:43:52 +00:00
Reid Spencer
a8bcc120d4 Numerous fixes to convert ~ into ; that (probably) occurred during data 
transmission.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16418 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-19 23:42:55 +00:00
Chris Lattner
d404d7fb25 The lexicon doc is more of a user guide than programming dox 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16417 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-19 23:15:47 +00:00
Reid Spencer
12de17db02 Bring the script out of the dark ages and into modern autoconfness. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16415 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-19 22:31:49 +00:00
Reid Spencer
8eacb0c3a7 Make the "Warning" notice a LOT more prominent. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16414 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-19 22:30:53 +00:00
Reid Spencer
b03adb8cab Add in version dependency checks on all the tools we depend on. This is 
necessary to ensure that a consistent configuration is created on each
platform. Certain definitions we use (like m4/libtool.m4) require certain
versions of the tools and we can no longer be slack about this or we'll
have problems with mis-configured builds.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16412 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-19 22:14:24 +00:00
Reid Spencer
ed8624d58e Add our own version of libtool.m4 instead of relying on the installed one. 
This is a potential version mismatch problem because this file came from
libtool 1.5.10. If you're running a different version of libtool, the
checks in this file may not be quite right. Having our own version of this
file violates the spirit of libtool and is only provided to change the name
of "libtool" to "mklib". This is done so that the name "libtool" does not
conflict with the "lib" directory when doing tab completion and your
$objdir == $srcdir.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16411 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-19 21:47:47 +00:00