Commit Graph

14410 Commits

Author SHA1 Message Date
Chris Lattner
9d4748d32d Implement shift-and combinations, implementing InstCombine/and.ll:test19-21
These combinations trigger 4 times in povray, 7x in gcc, 4x in gap, and 2x in bzip2.

llvm-svn: 16508
2004-09-24 15:21:34 +00:00
Chris Lattner
243761aade Add some tests for shr-and folding
llvm-svn: 16507
2004-09-24 15:18:43 +00:00
John Criswell
52263072bc Configure Datatypes.h.in with AC_CONFIG_HEADERS. This should prevent it
from being re-generated if the new version is identical to the old version.
Hence, it should save us some recompiling after re-configures.

llvm-svn: 16506
2004-09-24 13:28:51 +00:00
Chris Lattner
7e603bfc67 Move LHSI->hasOneUse() into the arms of the conditional, reindenting code.
No functionality changes here.

llvm-svn: 16505
2004-09-23 21:52:49 +00:00
Chris Lattner
00ea30c3c5 Implement Transforms/InstCombine/and.ll:test18, a case that occurs 20 times
in perlbmk

llvm-svn: 16504
2004-09-23 21:46:38 +00:00
Chris Lattner
e317436053 New testcase for a pattern that occurs 20 times in perlbmk
llvm-svn: 16503
2004-09-23 21:42:49 +00:00
Reid Spencer
0ab7446879 Add a blurb about the use of class vs. struct keyword in class decls.
llvm-svn: 16500
2004-09-23 16:03:48 +00:00
Chris Lattner
6409a166e8 Implement select.ll:test16: fold load (select C, X, null) -> load X
llvm-svn: 16499
2004-09-23 15:46:00 +00:00
Chris Lattner
e9a2c15dac load null is undefined behavior, this should fold
llvm-svn: 16498
2004-09-23 15:45:20 +00:00
Reid Spencer
67f6472f19 Change Value from a "struct" to a "class" so that VC 7.1 doesn't generate
missing symbols when its referenced as a class.

llvm-svn: 16496
2004-09-23 14:49:45 +00:00
Reid Spencer
6210b04509 Patch for MINGW. Patch provided by Henrik Bach.
llvm-svn: 16495
2004-09-23 14:47:10 +00:00
Reid Spencer
0e05a38c6a Missed one $*.a -> $@ conversion for the Release build.
llvm-svn: 16494
2004-09-23 06:07:24 +00:00
Nate Begeman
75f0d35dc6 Fix the last of the major PPC GEP folding deficiencies. This will allow
the ISel to use indexed and non-zero immediate offsets for GEPs that have
more than one use.  This is common for instruction sequences such as a load
followed by a modify and store to the same address.

llvm-svn: 16493
2004-09-23 05:31:33 +00:00
Alkis Evlogimenos
4830449e7d Update email address
llvm-svn: 16492
2004-09-23 04:39:30 +00:00
Chris Lattner
29e72ea4be Grrr... I shouldn't have to do this one :)
llvm-svn: 16491
2004-09-23 04:36:01 +00:00
Chris Lattner
5c43684ca2 Update credits
llvm-svn: 16490
2004-09-23 04:30:05 +00:00
Reid Spencer
4961a0c269 Correct the rules for making shared libraries per libtool 1.5.10
llvm-svn: 16489
2004-09-23 00:58:06 +00:00
Misha Brukman
a59d95f2ed Use the V8/V9 shared register file description
llvm-svn: 16485
2004-09-22 21:48:50 +00:00
Misha Brukman
72c0988b77 Combine the F2 and F3 instruction classes into one file for simplicity
llvm-svn: 16484
2004-09-22 21:38:42 +00:00
Misha Brukman
5290581b39 Fix file header path
llvm-svn: 16483
2004-09-22 21:29:12 +00:00
Misha Brukman
3f8390a72f Prettify formatting of the file, adjust paths to making V8 a subdir of Sparc
llvm-svn: 16482
2004-09-22 20:09:29 +00:00
Misha Brukman
f8a2aee058 V8 is now a subdirectory of Sparc; adjust paths accordingly
llvm-svn: 16481
2004-09-22 20:08:52 +00:00
Reid Spencer
8304ac75a2 Update to add the HAVE_UINT64_T test and the STACK_DIRECTION indicator.
llvm-svn: 16480
2004-09-22 15:32:08 +00:00
Reid Spencer
182e31bdc5 The alloca function, strangely enough, is found in the malloc.h header file
on MINGW platform. Provide an #elseif case to #include malloc.h for this
platform if malloc.h is found.

Patch provided by Henrik Bach. Thanks Henrik!

llvm-svn: 16479
2004-09-22 15:28:32 +00:00
Nate Begeman
61d1797c03 add optimized code sequences for setcc x, 0
llvm-svn: 16478
2004-09-22 04:40:25 +00:00
Chris Lattner
537636bb55 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

llvm-svn: 16473
2004-09-21 21:35:23 +00:00
Alkis Evlogimenos
3f8f30bcb8 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.

llvm-svn: 16472
2004-09-21 21:22:11 +00:00
Misha Brukman
bd9f406b0b 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.

llvm-svn: 16471
2004-09-21 18:22:33 +00:00
Misha Brukman
6ad6dd2ab9 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.

llvm-svn: 16470
2004-09-21 18:22:19 +00:00
Misha Brukman
e877aacbaa 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.

llvm-svn: 16469
2004-09-21 18:21:21 +00:00
Chris Lattner
55d0f3ae97 Make sure to set the operand list
llvm-svn: 16466
2004-09-21 17:30:54 +00:00
Reid Spencer
645c405a6d Fix a problem where the mmap_file test was generating an incorrect test
program that always failed (wouldn't compile).

llvm-svn: 16465
2004-09-21 17:14:44 +00:00
Reid Spencer
c8ea59b3c7 Change the warning text so that NO warnings are permitted. This is now the
case since the AC_CONFIG_SUBDIRS problem has been fixed.

llvm-svn: 16464
2004-09-21 17:13:23 +00:00
Reid Spencer
5c162ec83c 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.

llvm-svn: 16463
2004-09-21 17:12:35 +00:00
Reid Spencer
c90eff97f7 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.

llvm-svn: 16462
2004-09-21 17:10:52 +00:00
Misha Brukman
0559022175 Thanks to Brad Jones for packed type support!
llvm-svn: 16461
2004-09-21 16:54:37 +00:00
Misha Brukman
03b712dfcc Thanks to Brad for documentation on adding a DerivedType
llvm-svn: 16460
2004-09-21 16:53:29 +00:00
Chris Lattner
424098cc84 This is an empty directory
llvm-svn: 16459
2004-09-21 16:26:13 +00:00
Chris Lattner
81eb16dd40 This is a dead directory now
llvm-svn: 16458
2004-09-21 16:25:41 +00:00
Reid Spencer
cfb05261bc Change the name of the "known" module for Java from llvm-java to Java.
llvm-svn: 16453
2004-09-20 22:14:56 +00:00
Alkis Evlogimenos
09eb7928db Use the right directory for the Java frontend
llvm-svn: 16448
2004-09-20 15:45:36 +00:00
Chris Lattner
b64bfebc25 Fix potential miscompilations: InstCombine/2004-09-20-BadLoadCombine*.llx
llvm-svn: 16447
2004-09-20 10:15:10 +00:00
Chris Lattner
258a4d3c8c Two testcases for invalid transformations that instcombine is doing
llvm-svn: 16446
2004-09-20 10:14:27 +00:00
Reid Spencer
d34acf9203 Documentation upgrade.
llvm-svn: 16445
2004-09-20 08:09:36 +00:00
Reid Spencer
1b666f9b79 Finish the documentation.
llvm-svn: 16444
2004-09-20 08:04:13 +00:00
Reid Spencer
7e9bb8eeda 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.

llvm-svn: 16443
2004-09-20 08:00:09 +00:00
Reid Spencer
95d5c8f3c3 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.

llvm-svn: 16442
2004-09-20 07:22:23 +00:00
Reid Spencer
eee6d1dc15 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.

llvm-svn: 16441
2004-09-20 07:21:19 +00:00
Alkis Evlogimenos
a3a9fa1d80 Fix loop condition so that we don't decrement off the beginning of the
list.

llvm-svn: 16440
2004-09-20 06:42:58 +00:00
Chris Lattner
dbba476620 Don't count .lo files :)
llvm-svn: 16439
2004-09-20 05:01:04 +00:00