Chris Lattner [Fri, 8 Oct 2004 05:07:56 +0000 (05:07 +0000)]
Instcombine (X & FF00) + xx00 -> (X+xx00) & FF00, implementing and.ll:test27
This comes up when doing adds to bitfield elements.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16836
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Fri, 8 Oct 2004 05:03:25 +0000 (05:03 +0000)]
New testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16835
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Fri, 8 Oct 2004 03:46:20 +0000 (03:46 +0000)]
Little patch to turn (shl (add X, 123), 4) -> (add (shl X, 4), 123 << 4)
This triggers in cases of bitfield additions, opening opportunities for
future improvements.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16834
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Fri, 8 Oct 2004 03:41:59 +0000 (03:41 +0000)]
New testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16833
91177308-0d34-0410-b5e6-
96231b3b80d8
Nate Begeman [Fri, 8 Oct 2004 02:49:24 +0000 (02:49 +0000)]
Implement logical and with an immediate that consists of a contiguous block
of one or more 1 bits (may wrap from least significant bit to most
significant bit) as the rlwinm rather than andi., andis., or some longer
instructons sequence.
int andn4(int z) { return z & -4; }
int clearhi(int z) { return z & 0x0000FFFF; }
int clearlo(int z) { return z & 0xFFFF0000; }
int clearmid(int z) { return z & 0x00FFFF00; }
int clearwrap(int z) { return z & 0xFF0000FF; }
_andn4:
rlwinm r3, r3, 0, 0, 29
blr
_clearhi:
rlwinm r3, r3, 0, 16, 31
blr
_clearlo:
rlwinm r3, r3, 0, 0, 15
blr
_clearmid:
rlwinm r3, r3, 0, 8, 23
blr
_clearwrap:
rlwinm r3, r3, 0, 24, 7
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16832
91177308-0d34-0410-b5e6-
96231b3b80d8
Misha Brukman [Fri, 8 Oct 2004 01:11:15 +0000 (01:11 +0000)]
Fix usage description typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16831
91177308-0d34-0410-b5e6-
96231b3b80d8
Misha Brukman [Fri, 8 Oct 2004 01:10:52 +0000 (01:10 +0000)]
Make comment header span the entire line
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16830
91177308-0d34-0410-b5e6-
96231b3b80d8
Misha Brukman [Fri, 8 Oct 2004 00:55:43 +0000 (00:55 +0000)]
Describe how to configure tests to work with f2c
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16829
91177308-0d34-0410-b5e6-
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Misha Brukman [Fri, 8 Oct 2004 00:41:27 +0000 (00:41 +0000)]
* Reformat to fit 80 cols
* Add missing <li> tags
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16828
91177308-0d34-0410-b5e6-
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Nate Begeman [Thu, 7 Oct 2004 22:30:03 +0000 (22:30 +0000)]
Several fixes and enhancements to the PPC32 backend.
1. Fix an illegal argument to getClassB when deciding whether or not to
sign extend a byte load.
2. Initial addition of isLoad and isStore flags to the instruction .td file
for eventual use in a scheduler.
3. Rewrite of how constants are handled in emitSimpleBinaryOperation so
that we can emit the PowerPC shifted immediate instructions far more
often. This allows us to emit the following code:
int foo(int x) { return x | 0x00F0000; }
_foo:
.LBB_foo_0: ; entry
; IMPLICIT_DEF
oris r3, r3, 15
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16826
91177308-0d34-0410-b5e6-
96231b3b80d8
Nate Begeman [Thu, 7 Oct 2004 22:26:12 +0000 (22:26 +0000)]
Add ori reg, reg, 0 as a move instruction. This can be generated from
loading a 32bit constant into a register whose low halfword is all zeroes.
We now omit the ori after the lis for the following C code:
int bar(int y) { return y * 0x00F0000; }
_bar:
.LBB_bar_0: ; entry
; IMPLICIT_DEF
lis r2, 15
mullw r3, r3, r2
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16825
91177308-0d34-0410-b5e6-
96231b3b80d8
Nate Begeman [Thu, 7 Oct 2004 22:24:32 +0000 (22:24 +0000)]
Remove unnecessary header include
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16824
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Thu, 7 Oct 2004 21:30:30 +0000 (21:30 +0000)]
Improve comments, no functionality changes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16814
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Thu, 7 Oct 2004 20:01:31 +0000 (20:01 +0000)]
Fix a nasty dangling pointer problem, due to a free'd pointer being left in
a map. This caused problems if a later object happened to be allocated at
the free'd object's address.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16813
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 7 Oct 2004 19:21:43 +0000 (19:21 +0000)]
Get friendly with Type
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16812
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 7 Oct 2004 19:20:48 +0000 (19:20 +0000)]
Unfortunately the fix for the previous bug introduced the previous
exponential behavior (bork!). This patch processes stuff with an
explicit SCC finder, allowing the algorithm to be more clear,
efficient, and also (as a bonus) correct! This gets us back to taking
0.6s to disassemble my horrible .bc file that previously took something
> 30 mins.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16811
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Thu, 7 Oct 2004 19:19:12 +0000 (19:19 +0000)]
Change signature of this method again
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16810
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 7 Oct 2004 19:16:43 +0000 (19:16 +0000)]
These files now live in Transforms/GlobalOpt
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16809
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 7 Oct 2004 19:16:26 +0000 (19:16 +0000)]
Move these files from Transforms/GlobalConstifier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16808
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 7 Oct 2004 16:19:40 +0000 (16:19 +0000)]
Fix a bug in my previous change. Unfortunately this reverts most of the
speedup, but has the advantage of not breaking a bunch of programs!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16806
91177308-0d34-0410-b5e6-
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Reid Spencer [Thu, 7 Oct 2004 16:03:21 +0000 (16:03 +0000)]
Make these scripts work on SunOS too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16805
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 7 Oct 2004 06:01:25 +0000 (06:01 +0000)]
Fix a bug in the safety analysis routine
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16804
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 7 Oct 2004 06:00:24 +0000 (06:00 +0000)]
Comment cleanups
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16803
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 7 Oct 2004 04:16:33 +0000 (04:16 +0000)]
* Rename pass to globalopt, since we do more than just constify
* Instead of handling dead functions specially, just nuke them.
* Be more aggressive about cleaning up after constification, in
particular, handle getelementptr instructions and constantexprs.
* Be a little bit more structured about how we process globals.
*** Delete globals that are only stored to, and never read. These are
clearly not useful, so they should go. This implements deadglobal.llx
This last one triggers quite a few times. In particular, 2208 in the
external tests, 1865 of which are in 252.eon. This shrinks eon from
1995094 to
1732341 bytes of bytecode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16802
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 7 Oct 2004 04:12:02 +0000 (04:12 +0000)]
Rename pass
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16801
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 7 Oct 2004 04:10:36 +0000 (04:10 +0000)]
This pass is not needed, as there is only ever one global: the stack
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16800
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 7 Oct 2004 04:07:08 +0000 (04:07 +0000)]
Add new testcase, rename pass
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16799
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 7 Oct 2004 00:03:11 +0000 (00:03 +0000)]
Don't add libz or libbz2 to the USEDLIBS lists, those are for LLVM libraries.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16798
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 6 Oct 2004 23:08:03 +0000 (23:08 +0000)]
Don't call memset if malloc returns a null pointer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16797
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 6 Oct 2004 20:57:02 +0000 (20:57 +0000)]
Implement GlobalConstifier/trivialstore.llx, and also do some
simplifications of the resultant program to avoid making later passes
do it all.
This allows us to constify globals that just have the same constant that
they are initialized stored into them.
Suprisingly this comes up ALL of the freaking time, dozens of times in
SPEC, 30 times in vortex alone.
For example, on 256.bzip2, it allows us to constify these two globals:
%smallMode = internal global ubyte 0 ; <ubyte*> [#uses=8]
%verbosity = internal global int 0 ; <int*> [#uses=49]
Which (with later optimizations) results in the bytecode file shrinking
from 82286 to 69686 bytes! Lets hear it for IPO :)
For the record, it's nuking lots of "if (verbosity > 2) { do lots of stuff }"
code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16793
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 6 Oct 2004 20:42:51 +0000 (20:42 +0000)]
New testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16791
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 6 Oct 2004 19:29:13 +0000 (19:29 +0000)]
Dont' let null nodes sneak past cast instructions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16779
91177308-0d34-0410-b5e6-
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Misha Brukman [Wed, 6 Oct 2004 17:19:58 +0000 (17:19 +0000)]
Undoxyfy internal method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16774
91177308-0d34-0410-b5e6-
96231b3b80d8
Misha Brukman [Wed, 6 Oct 2004 16:56:16 +0000 (16:56 +0000)]
Doxygen-ify comments
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16773
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 6 Oct 2004 16:36:46 +0000 (16:36 +0000)]
Change Type::isAbstract to have better comments, a more correct name
(PromoteAbstractToConcrete), and to use a set to avoid recomputation.
In particular, this set eliminates the potentially exponential cases
from this little recursive algorithm.
On a particularly nasty testcase, llvm-dis on the .bc file went from 34
minutes (which is when I killed it, it still hadn't finished) to 0.57s.
Remember kids, exponential algorithms are bad.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16772
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 6 Oct 2004 16:34:23 +0000 (16:34 +0000)]
Rename method, change comment, add argument
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16771
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 6 Oct 2004 16:28:24 +0000 (16:28 +0000)]
Correct some typeos
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16770
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 6 Oct 2004 15:08:25 +0000 (15:08 +0000)]
Instcombine: -(X sdiv C) -> (X sdiv -C), tested by sub.ll:test16
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16769
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 6 Oct 2004 15:07:56 +0000 (15:07 +0000)]
New testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16768
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Wed, 6 Oct 2004 14:31:50 +0000 (14:31 +0000)]
Remove debugging code, fix encoding problem. This fixes the problems
the JIT had last night.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16766
91177308-0d34-0410-b5e6-
96231b3b80d8
Nate Begeman [Wed, 6 Oct 2004 11:03:30 +0000 (11:03 +0000)]
Turning on fsel code gen now that we can do so would be good.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16765
91177308-0d34-0410-b5e6-
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Nate Begeman [Wed, 6 Oct 2004 09:53:04 +0000 (09:53 +0000)]
Implement floating point select for lt, gt, le, ge using the powerpc fsel
instruction.
Now, rather than emitting the following loop out of bisect:
.LBB_main_19: ; no_exit.0.i
rlwinm r3, r2, 3, 0, 28
lfdx f1, r3, r27
addis r3, r30, ha16(.CPI_main_1-"L00000$pb")
lfd f2, lo16(.CPI_main_1-"L00000$pb")(r3)
fsub f2, f2, f1
addis r3, r30, ha16(.CPI_main_1-"L00000$pb")
lfd f4, lo16(.CPI_main_1-"L00000$pb")(r3)
fcmpu cr0, f1, f4
bge .LBB_main_64 ; no_exit.0.i
.LBB_main_63: ; no_exit.0.i
b .LBB_main_65 ; no_exit.0.i
.LBB_main_64: ; no_exit.0.i
fmr f2, f1
.LBB_main_65: ; no_exit.0.i
addi r3, r2, 1
rlwinm r3, r3, 3, 0, 28
lfdx f1, r3, r27
addis r3, r30, ha16(.CPI_main_1-"L00000$pb")
lfd f4, lo16(.CPI_main_1-"L00000$pb")(r3)
fsub f4, f4, f1
addis r3, r30, ha16(.CPI_main_1-"L00000$pb")
lfd f5, lo16(.CPI_main_1-"L00000$pb")(r3)
fcmpu cr0, f1, f5
bge .LBB_main_67 ; no_exit.0.i
.LBB_main_66: ; no_exit.0.i
b .LBB_main_68 ; no_exit.0.i
.LBB_main_67: ; no_exit.0.i
fmr f4, f1
.LBB_main_68: ; no_exit.0.i
fadd f1, f2, f4
addis r3, r30, ha16(.CPI_main_2-"L00000$pb")
lfd f2, lo16(.CPI_main_2-"L00000$pb")(r3)
fmul f1, f1, f2
rlwinm r3, r2, 3, 0, 28
lfdx f2, r3, r28
fadd f4, f2, f1
fcmpu cr0, f4, f0
bgt .LBB_main_70 ; no_exit.0.i
.LBB_main_69: ; no_exit.0.i
b .LBB_main_71 ; no_exit.0.i
.LBB_main_70: ; no_exit.0.i
fmr f0, f4
.LBB_main_71: ; no_exit.0.i
fsub f1, f2, f1
addi r2, r2, -1
fcmpu cr0, f1, f3
blt .LBB_main_73 ; no_exit.0.i
.LBB_main_72: ; no_exit.0.i
b .LBB_main_74 ; no_exit.0.i
.LBB_main_73: ; no_exit.0.i
fmr f3, f1
.LBB_main_74: ; no_exit.0.i
cmpwi cr0, r2, -1
fmr f16, f0
fmr f17, f3
bgt .LBB_main_19 ; no_exit.0.i
We emit this instead:
.LBB_main_19: ; no_exit.0.i
rlwinm r3, r2, 3, 0, 28
lfdx f1, r3, r27
addis r3, r30, ha16(.CPI_main_1-"L00000$pb")
lfd f2, lo16(.CPI_main_1-"L00000$pb")(r3)
fsub f2, f2, f1
fsel f1, f1, f1, f2
addi r3, r2, 1
rlwinm r3, r3, 3, 0, 28
lfdx f2, r3, r27
addis r3, r30, ha16(.CPI_main_1-"L00000$pb")
lfd f4, lo16(.CPI_main_1-"L00000$pb")(r3)
fsub f4, f4, f2
fsel f2, f2, f2, f4
fadd f1, f1, f2
addis r3, r30, ha16(.CPI_main_2-"L00000$pb")
lfd f2, lo16(.CPI_main_2-"L00000$pb")(r3)
fmul f1, f1, f2
rlwinm r3, r2, 3, 0, 28
lfdx f2, r3, r28
fadd f4, f2, f1
fsub f5, f0, f4
fsel f0, f5, f0, f4
fsub f1, f2, f1
addi r2, r2, -1
fsub f2, f1, f3
fsel f3, f2, f3, f1
cmpwi cr0, r2, -1
fmr f16, f0
fmr f17, f3
bgt .LBB_main_19 ; no_exit.0.i
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16764
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 6 Oct 2004 05:01:07 +0000 (05:01 +0000)]
Codegen signed mod by 2 or -2 more efficiently. Instead of generating:
t:
mov %EDX, DWORD PTR [%ESP + 4]
mov %ECX, 2
mov %EAX, %EDX
sar %EDX, 31
idiv %ECX
mov %EAX, %EDX
ret
Generate:
t:
mov %ECX, DWORD PTR [%ESP + 4]
*** mov %EAX, %ECX
cdq
and %ECX, 1
xor %ECX, %EDX
sub %ECX, %EDX
*** mov %EAX, %ECX
ret
Note that the two marked moves are redundant, and should be eliminated by the
register allocator, but aren't.
Compare this to GCC, which generates:
t:
mov %eax, DWORD PTR [%esp+4]
mov %edx, %eax
shr %edx, 31
lea %ecx, [%edx+%eax]
and %ecx, -2
sub %eax, %ecx
ret
or ICC 8.0, which generates:
t:
movl 4(%esp), %ecx #3.5
movl $-
2147483647, %eax #3.25
imull %ecx #3.25
movl %ecx, %eax #3.25
sarl $31, %eax #3.25
addl %ecx, %edx #3.25
subl %edx, %eax #3.25
addl %eax, %eax #3.25
negl %eax #3.25
subl %eax, %ecx #3.25
movl %ecx, %eax #3.25
ret #3.25
We would be in great shape if not for the moves.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16763
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 6 Oct 2004 04:21:52 +0000 (04:21 +0000)]
Really fix FreeBSD, which apparently doesn't tolerate the extern.
Thanks to Jeff Cohen for pointing out my goof.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16762
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 6 Oct 2004 04:19:43 +0000 (04:19 +0000)]
Fix a scary bug with signed division by a power of two. We used to generate:
s: ;; X / 4
mov %EAX, DWORD PTR [%ESP + 4]
mov %ECX, %EAX
sar %ECX, 1
shr %ECX, 30
mov %EDX, %EAX
add %EDX, %ECX
sar %EAX, 2
ret
When we really meant:
s:
mov %EAX, DWORD PTR [%ESP + 4]
mov %ECX, %EAX
sar %ECX, 1
shr %ECX, 30
add %EAX, %ECX
sar %EAX, 2
ret
Hey, this also reduces register pressure too :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16761
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 6 Oct 2004 04:02:39 +0000 (04:02 +0000)]
Codegen signed divides by 2 and -2 more efficiently. In particular
instead of:
s: ;; X / 2
movl 4(%esp), %eax
movl %eax, %ecx
shrl $31, %ecx
movl %eax, %edx
addl %ecx, %edx
sarl $1, %eax
ret
t: ;; X / -2
movl 4(%esp), %eax
movl %eax, %ecx
shrl $31, %ecx
movl %eax, %edx
addl %ecx, %edx
sarl $1, %eax
negl %eax
ret
Emit:
s:
movl 4(%esp), %eax
cmpl $-
2147483648, %eax
sbbl $-1, %eax
sarl $1, %eax
ret
t:
movl 4(%esp), %eax
cmpl $-
2147483648, %eax
sbbl $-1, %eax
sarl $1, %eax
negl %eax
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16760
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 6 Oct 2004 04:01:02 +0000 (04:01 +0000)]
Add some new instructions. Fix the asm string for sbb32rr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16759
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 6 Oct 2004 03:27:37 +0000 (03:27 +0000)]
Reduce code growth implied by the tail duplication pass by not duplicating
an instruction if it can be hoisted to a common dominator of the block.
This implements: test/Regression/Transforms/TailDup/MergeTest.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16758
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Chris Lattner [Wed, 6 Oct 2004 03:26:38 +0000 (03:26 +0000)]
When tail duplicating these functions, the add instruction should not be
duplicated, even though the block it is in is duplicated.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16757
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Chris Lattner [Wed, 6 Oct 2004 03:15:44 +0000 (03:15 +0000)]
FreeBSD uses GCC. Patch contributed by Jeff Cohen!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16756
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Chris Lattner [Wed, 6 Oct 2004 03:13:47 +0000 (03:13 +0000)]
Fix the path to the fixinc'd headers. Patch contributed by Jeff Cohen!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16755
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Brian Gaeke [Tue, 5 Oct 2004 18:46:59 +0000 (18:46 +0000)]
Must include sys/stat.h before declaring a 'struct stat'
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16728
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Brian Gaeke [Tue, 5 Oct 2004 18:05:53 +0000 (18:05 +0000)]
Build BFtoLLVM example front-end by default
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16719
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Brian Gaeke [Tue, 5 Oct 2004 18:05:25 +0000 (18:05 +0000)]
Add BFtoLLVM example front end
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16714
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Chris Lattner [Tue, 5 Oct 2004 02:28:11 +0000 (02:28 +0000)]
Make sure the const bit gets inherited correctly when linking declarations
of disagreeing constness. This fixes
test/Regression/Linker/ConstantGlobals[123].ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16692
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Chris Lattner [Tue, 5 Oct 2004 02:16:01 +0000 (02:16 +0000)]
Another testcase for constness linkage
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16691
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Chris Lattner [Tue, 5 Oct 2004 02:12:20 +0000 (02:12 +0000)]
Testcase to ensure that the 'constant' flag follows the definition when there
is a question.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16690
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Reid Spencer [Tue, 5 Oct 2004 00:56:46 +0000 (00:56 +0000)]
Adjust sys/stat.h inclusion so its only for SunOS.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16686
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Tanya Lattner [Tue, 5 Oct 2004 00:51:26 +0000 (00:51 +0000)]
Added a couple of includes to get this to compile on Sparc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16685
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Chris Lattner [Tue, 5 Oct 2004 00:46:21 +0000 (00:46 +0000)]
Solaris doesn't have MAP_FILE.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16682
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Chris Lattner [Tue, 5 Oct 2004 00:23:02 +0000 (00:23 +0000)]
Bug fixed
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16671
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Chris Lattner [Tue, 5 Oct 2004 00:18:21 +0000 (00:18 +0000)]
New testcase for PR450
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16670
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Reid Spencer [Mon, 4 Oct 2004 22:05:53 +0000 (22:05 +0000)]
Add checks for the ZLIB and BZIP2 header files, not just the libraries.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16669
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Chris Lattner [Mon, 4 Oct 2004 18:10:18 +0000 (18:10 +0000)]
Fix #include flavor
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16658
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Reid Spencer [Mon, 4 Oct 2004 18:02:55 +0000 (18:02 +0000)]
Move the warning about no compression library down to the bottom, away
from the fray, so it gets noticed. This commit is made without the
corresponding configure script commit because it doesn't affect
functionality and we don't want to force everyone into another reconfigure
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16657
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Reid Spencer [Mon, 4 Oct 2004 17:49:19 +0000 (17:49 +0000)]
Fix typo in makefile variable name that prevents zlib from being recognized
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16656
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Reid Spencer [Mon, 4 Oct 2004 17:48:37 +0000 (17:48 +0000)]
Add HAVE_BZIP2 and HAVE_ZLIB
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16655
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Reid Spencer [Mon, 4 Oct 2004 17:45:44 +0000 (17:45 +0000)]
Excise the ill-advised RLCOMP compression algorithm and simply leave the
previously temporary NULLCOMP implementation that merely copies the data
verbatim without compression. Also, don't warn if there's no compression
library as that is taken care of during configuration time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16654
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Misha Brukman [Mon, 4 Oct 2004 17:36:35 +0000 (17:36 +0000)]
Add example 'abstract' architectures for LLI: MIX, MMIX, and DLX
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16653
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Reid Spencer [Mon, 4 Oct 2004 17:29:25 +0000 (17:29 +0000)]
Add a context for the callback so different compression scenarios can be
distinguished. Tidy up documentation. Thanks, Chris.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16652
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Reid Spencer [Mon, 4 Oct 2004 17:26:26 +0000 (17:26 +0000)]
Minor corrections suggested by Chris' ever-watchful eye.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16651
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Chris Lattner [Mon, 4 Oct 2004 16:33:25 +0000 (16:33 +0000)]
Fix build if not HAVE_BZIP2
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16650
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Reid Spencer [Mon, 4 Oct 2004 11:08:32 +0000 (11:08 +0000)]
First version of the MappedFile abstraction for operating system idependent
mapping of files. This first version uses mmap where its available. The
class needs to implement an alternate mechanism based on malloc'd memory
and file reading/writing for platforms without virtual memory.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16649
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Reid Spencer [Mon, 4 Oct 2004 10:49:41 +0000 (10:49 +0000)]
First version of a support utility to provide generalized compression in
LLVM that handles availability and unavailability of bzip2 and zlib.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16648
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Chris Lattner [Mon, 4 Oct 2004 07:31:08 +0000 (07:31 +0000)]
* Prune #includes
* Update comments
* Rearrange code a bit
* Finally ELIMINATE the GAS workaround emitter for Intel mode. woot!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16647
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Chris Lattner [Mon, 4 Oct 2004 07:24:48 +0000 (07:24 +0000)]
Add support for emitting AT&T style .s files, and make it the default. Users
may now choose their output format with the -x86-asm-syntax={intel|att} flag.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16646
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Chris Lattner [Mon, 4 Oct 2004 07:23:07 +0000 (07:23 +0000)]
Convert some missed patterns to support AT&T style
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16645
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Chris Lattner [Mon, 4 Oct 2004 07:08:46 +0000 (07:08 +0000)]
Apparently the GNU assembler has a HUGE hack to be compatible with really
old and broken AT&T syntax assemblers. The problem with this hack is that
*SOME* forms of the fdiv and fsub instructions have the 'r' bit inverted.
This was a real pain to figure out, but is trivially easy to support: thus
we are now bug compatible with gas and gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16644
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Reid Spencer [Mon, 4 Oct 2004 07:05:07 +0000 (07:05 +0000)]
Provide support for auto-detection and use of compression libraries.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16643
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Chris Lattner [Mon, 4 Oct 2004 05:20:16 +0000 (05:20 +0000)]
Fix incorrect suffix
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16642
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Chris Lattner [Mon, 4 Oct 2004 01:38:10 +0000 (01:38 +0000)]
Fix some more missed suffixes and swapped operands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16641
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Chris Lattner [Mon, 4 Oct 2004 00:43:31 +0000 (00:43 +0000)]
Add missing suffixes to FP instructions for AT&T mode
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16640
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Chris Lattner [Sun, 3 Oct 2004 20:36:57 +0000 (20:36 +0000)]
Add support for the -x86-asm-syntax flag, which can be used to choose between
Intel and AT&T style assembly language. The ultimate goal of this is to
eliminate the GasBugWorkaroundEmitter class, but for now AT&T style emission
is not fully operational.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16639
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Chris Lattner [Sun, 3 Oct 2004 20:35:00 +0000 (20:35 +0000)]
Add support to the instruction patterns for AT&T style output, which will
hopefully lead to the death of the 'GasBugWorkaroundEmitter'. This also
includes changes to wrap the whole file to 80 columns! Woot! :)
Note that the AT&T style output has not been tested at all.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16638
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Chris Lattner [Sun, 3 Oct 2004 20:19:02 +0000 (20:19 +0000)]
Correctly parse variant notation
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16637
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Chris Lattner [Sun, 3 Oct 2004 19:34:31 +0000 (19:34 +0000)]
Add initial support for variants. This just parses the new format, no
functionality is added
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16636
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Chris Lattner [Sun, 3 Oct 2004 19:34:18 +0000 (19:34 +0000)]
Add initial support for variants
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16635
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Reid Spencer [Sat, 2 Oct 2004 08:50:58 +0000 (08:50 +0000)]
Add checks for bzip2 and libz for use with the Compression concept for
lib/System and the compressing llvm archiver.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16634
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Chris Lattner [Fri, 1 Oct 2004 23:16:43 +0000 (23:16 +0000)]
Do not repeat the map lookup
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16633
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Chris Lattner [Fri, 1 Oct 2004 23:15:36 +0000 (23:15 +0000)]
When a virtual register is folded into an instruction, keep track of whether
it was a use, def, or both. This allows us to be less pessimistic in our
analysis of them. In practice, this doesn't make a big difference, but it
doesn't hurt either.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16632
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Chris Lattner [Fri, 1 Oct 2004 22:25:28 +0000 (22:25 +0000)]
Add project
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16631
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Chris Lattner [Fri, 1 Oct 2004 19:47:12 +0000 (19:47 +0000)]
Add a simple little improvement to the local spiller to keep track of stores
and delete them if they turn out to be dead. This is a useful little hack
that even speeds up some programs. For example, it speeds up Ptrdist/ks
from 17.53s to 15.59s, and 188.ammp from 149s to 146s.
This also speeds up llc :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16630
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Chris Lattner [Fri, 1 Oct 2004 19:04:51 +0000 (19:04 +0000)]
Substantially revamp the local spiller, causing it to actually improve the
generated code over the simple spiller. The new local spiller generates
substantially better code than the simple one in some cases, by reusing
values that are loaded out of stack slots and kept available in registers.
This primarily helps programs that are spilling a lot, and there is still
stuff that can be done to improve it. This patch makes the local spiller
the default, as it's only a tiny bit slower than the simple spiller (it
increases the runtime of llc by < 1%).
Here are some numbers with speedups.
Program #reuse old(s) new(s) Speedup
Povray: 3452, 16.87 -> 15.93 (5.5%)
177.mesa: 2176, 2.77 -> 2.76 (0%)
179.art: 35, 28.43 -> 28.01 (1.5%)
183.equake: 55, 61.44 -> 61.41 (0%)
188.ammp: 869, 174 -> 149 (15%)
164.gzip: 43, 40.73 -> 40.71 (0%)
175.vpr: 351, 18.54 -> 17.34 (6.5%)
176.gcc: 2471, 5.01 -> 4.92 (1.8%)
181.mcf 42, 79.30 -> 75.20 (5.2%)
186.crafty: 484, 29.73 -> 30.04 (-1%)
197.parser: 251, 10.47 -> 10.67 (-1%)
252.eon: 1501, 1.98 -> 1.75 (12%)
253.perlbm: 1183, 14.83 -> 14.42 (2.8%)
254.gap: 825, 7.46 -> 7.29 (2.3%)
255.vortex: 285, 10.51 -> 10.27 (2.3%)
256.bzip2: 63, 55.70 -> 55.20 (0.9%)
300.twolf: 830, 21.63 -> 22.00 (-1%)
PtrDist/ks 14, 32.75 -> 17.53 (46.5%)
Olden/tsp 46, 8.71 -> 8.24 (5.4%)
Free/distray 70, 1.09 -> 0.99 (9.2%)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16629
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Chris Lattner [Fri, 1 Oct 2004 19:01:39 +0000 (19:01 +0000)]
Pretty print a bit nicer :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16628
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Misha Brukman [Fri, 1 Oct 2004 18:36:22 +0000 (18:36 +0000)]
Add note about converting Skeleton to a useful backend and using it in the
Interpreter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16627
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Alkis Evlogimenos [Fri, 1 Oct 2004 00:35:07 +0000 (00:35 +0000)]
Document this class a bit :-)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16626
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Alkis Evlogimenos [Thu, 30 Sep 2004 21:42:02 +0000 (21:42 +0000)]
Add const version of getLastBlock() member function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16625
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Alkis Evlogimenos [Thu, 30 Sep 2004 21:39:47 +0000 (21:39 +0000)]
Remove whitespace from the end of the line.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16624
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Brian Gaeke [Thu, 30 Sep 2004 20:20:01 +0000 (20:20 +0000)]
Make EmitMappingInfo into an "external location" option, so that it can be set
or cleared externally.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16623
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Brian Gaeke [Thu, 30 Sep 2004 20:14:29 +0000 (20:14 +0000)]
Add accessor function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16622
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