Chris Lattner
f1479ae390
Fix this a 3rd time :)
...
llvm-svn: 22151
2005-05-20 17:00:21 +00:00
Andrew Lenharth
46b9d601f5
fix compilation error due to no abort being defined. There is probably a better way to do this
...
llvm-svn: 22150
2005-05-20 16:34:44 +00:00
Duraid Madina
44ac7502fd
re-enable direct calls, this should just be a performance boost
...
llvm-svn: 22148
2005-05-20 11:39:17 +00:00
Duraid Madina
c043395fe8
this seems dead (and broke the ia64 build, so..)
...
llvm-svn: 22147
2005-05-20 06:21:59 +00:00
Chris Lattner
993038773b
Give the asmparser the ability to parse strings. Patch contributed by
...
Alexander Friedman
llvm-svn: 22146
2005-05-20 03:25:47 +00:00
Jeff Cohen
a0f463a25c
Fix tail call support in VC++ builds
...
llvm-svn: 22143
2005-05-20 01:35:39 +00:00
Chris Lattner
c1d9b43fc1
Fastcc passes arguments in EAX and EDX, make sure the JIT doesn't clobber them
...
llvm-svn: 22137
2005-05-19 06:49:17 +00:00
Chris Lattner
6dcae1c96e
Tailcalls require stubs to be emitted. Otherwise, the compilation callback
...
doesn't know who 'called' it.
llvm-svn: 22136
2005-05-19 05:54:33 +00:00
Misha Brukman
49fe7aa1d6
Wrap long lines
...
llvm-svn: 22125
2005-05-18 20:37:33 +00:00
Chris Lattner
df9c75fb12
teach the inliner about coldcc and noreturn functions
...
llvm-svn: 22113
2005-05-18 04:30:33 +00:00
Duraid Madina
0cc90e2e4a
comment the hpux bit
...
llvm-svn: 22081
2005-05-16 06:59:53 +00:00
Duraid Madina
7391051c20
HP-UX system headers make a mess of isinf(), so much so that gcc fixincludes
...
can't patch it up for c++ (works in C though)
llvm-svn: 22079
2005-05-16 06:45:57 +00:00
Reid Spencer
720fbd937a
Don't look for __builtin_ffs, we'll never see it from llvm-gcc and there's
...
not reason to include it for other front ends.
llvm-svn: 22070
2005-05-15 21:27:34 +00:00
Reid Spencer
58ad53e9d3
Provide this optimization as well:
...
ffs(x) -> (x == 0 ? 0 : 1+llvm.cttz(x))
llvm-svn: 22068
2005-05-15 21:19:45 +00:00
Chris Lattner
0366a913ad
PPC "branch and link" instructions are branches in the PPC sense, but not
...
in the LLVM code generator sense (they are calls). Don't mark them as such,
which fixes the regressions on the ppc tester last night
llvm-svn: 22065
2005-05-15 20:11:44 +00:00
Chris Lattner
9fc81f1162
Fix andrews changes to fit in 80 columns
...
llvm-svn: 22064
2005-05-15 19:54:37 +00:00
Reid Spencer
24104523b5
Duh .. you actually have to #include Config/config.h before you can test
...
for one of the values that it defines!
llvm-svn: 22058
2005-05-15 17:20:47 +00:00
Reid Spencer
ba222e3e99
Some cleanups for compilation with GCC 4.0.0 to remove warnings:
...
* Use C++ style casts, not C style casts
* Abstract base classes should have virtual destructor.
llvm-svn: 22057
2005-05-15 16:13:11 +00:00
Duraid Madina
03a7327d63
make angry compilers happy again
...
llvm-svn: 22054
2005-05-15 14:44:13 +00:00
Duraid Madina
f4ca48c89e
aCC and STLport complained about this, because they're like that
...
llvm-svn: 22053
2005-05-15 13:05:48 +00:00
Chris Lattner
95650a26b2
don't reserve space for tailcall arg areas. It explicitly managed.
...
llvm-svn: 22050
2005-05-15 06:07:10 +00:00
Chris Lattner
2fd2e53f6a
Teach reginfo how to deal with ADJSTACKPTRri, allowing us to generate:
...
add %ESP, 20
jmp %EDX # TAIL CALL
instead of:
add %ESP, -8
add %ESP, 28
jmp %EDX # TAIL CALL
llvm-svn: 22047
2005-05-15 05:49:58 +00:00
Chris Lattner
77f8c2cece
Implement proper tail calls in the X86 backend for all fastcc->fastcc
...
tail calls.
llvm-svn: 22046
2005-05-15 05:46:45 +00:00
Chris Lattner
811dc49f55
Add some simplifications for MULH[SU]. This allows us to compile this:
...
long %bar(long %X) {
%Y = mul long %X, 4294967297
ret long %Y
}
to this:
l1_bar:
mov %EAX, DWORD PTR [%ESP + 4]
mov %EDX, %EAX
add %EDX, DWORD PTR [%ESP + 8]
ret
instead of:
l1_bar:
mov %ECX, DWORD PTR [%ESP + 4]
mov %EDX, 1
mov %EAX, %ECX
mul %EDX
add %EDX, %ECX
add %EDX, DWORD PTR [%ESP + 8]
mov %EAX, %ECX
ret
llvm-svn: 22044
2005-05-15 05:39:08 +00:00
Chris Lattner
7327c042b4
Add markers in the asm file for tail calls, add a new ADJSTACKPTRri
...
sorta-pseudo-instruction
llvm-svn: 22042
2005-05-15 03:10:37 +00:00
Chris Lattner
54bf1cc313
When inserting callee-save register reloads, make sure to skip over any
...
terminator instructions before the 'ret' in case the target has a
multi-instruction return sequence.
llvm-svn: 22041
2005-05-15 03:09:58 +00:00
Chris Lattner
64232a8480
Yes, calltarget is the operand of the day.
...
llvm-svn: 22040
2005-05-15 01:10:30 +00:00
Chris Lattner
adb31a99fa
When emitting the function epilog, check to see if there already a stack
...
adjustment. If so, we merge the adjustment into the existing one. This
allows us to generate:
caller2:
sub %ESP, 12
mov DWORD PTR [%ESP], 0
mov %EAX, 1234567890
mov %EDX, 0
call func2
add %ESP, 8
ret 4
intead of:
caller2:
sub %ESP, 12
mov DWORD PTR [%ESP], 0
mov %EAX, 1234567890
mov %EDX, 0
call func2
sub %ESP, 4
add %ESP, 12
ret 4
for X86/fast-cc-merge-stack-adj.ll
llvm-svn: 22038
2005-05-14 23:53:43 +00:00
Chris Lattner
37e226fa9b
Add some new instructions
...
llvm-svn: 22036
2005-05-14 23:35:21 +00:00
Reid Spencer
9cd1000c52
Changes for ffs lib call simplification:
...
* Check for availability of ffsll call in configure script
* Support ffs, ffsl, and ffsll conversion to constant value if the argument
is constant.
llvm-svn: 22027
2005-05-14 16:42:52 +00:00
Chris Lattner
46de5c99bd
Fix construction of ioport intrinsics, fixing X86/io.llx and io-port.llx
...
llvm-svn: 22026
2005-05-14 13:56:55 +00:00
Chris Lattner
bcd4c17bfd
Preserve calling conv when hacking on calls
...
llvm-svn: 22025
2005-05-14 12:28:32 +00:00
Chris Lattner
7771ae3fcc
preserve calling conventions when hacking on code
...
llvm-svn: 22024
2005-05-14 12:25:32 +00:00
Chris Lattner
214f1a8cf9
Make sure to preserve the calling convention when changing an invoke into
...
a call. This fixes Prolangs-C++/deriv2, kimwitu++, and Misc-C++/bigfib
on X86 with -enable-x86-fastcc.
llvm-svn: 22023
2005-05-14 12:21:56 +00:00
Chris Lattner
9d106c705d
Pass i64 values correctly split in reg/mem to fastcc calls.
...
This fixes fourinarow with -enable-x86-fastcc.
llvm-svn: 22022
2005-05-14 12:03:10 +00:00
Chris Lattner
adde8b1a71
Use target-specific nodes for calls. This allows the fastcc code to not have
...
to do ugly hackery to avoid emitting code like this:
call foo
mov vreg, EAX
adjcallstackup ...
If foo is a fastcc call and if vreg gets spilled, we might end up with this:
call foo
mov [ESP+offset], EAX ;; Offset doesn't consider the 12!
sub ESP, 12
Which is bad. The previous hacky code to deal with this was A) gross B) not
good enough. In particular, it could miss cases and emit the bad code above.
Now we always emit this:
call foo
adjcallstackup ...
mov vreg, EAX
directly.
This makes fastcc with callees poping the stack work much better. Next
stop (finally!) really is tail calls.
llvm-svn: 22021
2005-05-14 08:48:15 +00:00
Chris Lattner
052759b78c
allow token chain at start or end of node
...
llvm-svn: 22020
2005-05-14 08:34:53 +00:00
Chris Lattner
d9e36f94bb
remove special case hacks for readport/readio from the binary operator
...
codepath
llvm-svn: 22019
2005-05-14 07:45:46 +00:00
Chris Lattner
d1d8fbee2d
Implement fixme's by memoizing nodes.
...
llvm-svn: 22018
2005-05-14 07:42:29 +00:00
Chris Lattner
ac7d55f114
Turn this into a wrapper for a simpler version of getNode.
...
llvm-svn: 22016
2005-05-14 07:32:14 +00:00
Chris Lattner
a035798c4b
Eliminate special purpose hacks for dynamic_stack_alloc.
...
llvm-svn: 22015
2005-05-14 07:29:57 +00:00
Chris Lattner
b94e243d14
Use the general mechanism for creating multi-value nodes instead of using
...
special case hacks.
llvm-svn: 22014
2005-05-14 07:25:05 +00:00
Chris Lattner
c0c6680744
use a target-specific node and custom expander to lower long->FP to FILD64m.
...
This should fix some missing symbols problems on BSD and improve performance
of programs that use that operation.
llvm-svn: 22012
2005-05-14 06:52:07 +00:00
Chris Lattner
ad411081fb
Wrap long line, actually add node to the graph.
...
llvm-svn: 22011
2005-05-14 06:42:57 +00:00
Chris Lattner
6f7b63c7d7
legalize target-specific operations
...
llvm-svn: 22010
2005-05-14 06:34:48 +00:00
Chris Lattner
1afb5ae575
add a getNode() version that allows construction of any node type.
...
llvm-svn: 22009
2005-05-14 06:20:26 +00:00
Chris Lattner
6e81a4090f
LowerOperation takes a dag
...
llvm-svn: 22004
2005-05-14 05:50:48 +00:00
Chris Lattner
369427683d
Print the symbolic register name in a register allocator debug dump.
...
llvm-svn: 22002
2005-05-14 05:34:15 +00:00
Chris Lattner
1202c26d6e
Allow targets to have a custom int64->fp expander if desired
...
llvm-svn: 22001
2005-05-14 05:33:54 +00:00
Chris Lattner
2210f7d6e9
Make sure the start of the arg area and the end (after the RA is pushed)
...
is always 8-byte aligned for fastcc
llvm-svn: 21995
2005-05-13 23:49:10 +00:00
Chris Lattner
4a2129161d
fix the assertion
...
llvm-svn: 21994
2005-05-13 23:35:47 +00:00
Chris Lattner
2163eeaa67
Align doubles on 8-byte boundaries if possible.
...
llvm-svn: 21993
2005-05-13 23:14:17 +00:00
Chris Lattner
d9dd5bb798
print stack object alignment in -print-machineinstr dumps
...
llvm-svn: 21992
2005-05-13 22:54:44 +00:00
Chris Lattner
1634435c77
fix typo
...
llvm-svn: 21991
2005-05-13 22:46:57 +00:00
Chris Lattner
0d4b08e470
Fix the problems with callee popped argument lists
...
llvm-svn: 21988
2005-05-13 22:13:49 +00:00
Chris Lattner
e667c34ef1
Don't emit SAR X, 0 in the case of sdiv Y, 2
...
llvm-svn: 21986
2005-05-13 21:50:27 +00:00
Chris Lattner
fc630bb4f0
Fix UnitTests/2005-05-13-SDivTwo.c
...
llvm-svn: 21985
2005-05-13 21:48:20 +00:00
Chris Lattner
62593e4e66
switch to having the callee pop stack operands for fastcc. This is currently buggy
...
do not use
llvm-svn: 21984
2005-05-13 21:44:04 +00:00
Chris Lattner
a3e57bd844
Tolerate instrs with extra args
...
llvm-svn: 21982
2005-05-13 21:07:15 +00:00
Chris Lattner
e9944b033d
allow RETI
...
llvm-svn: 21980
2005-05-13 20:46:35 +00:00
Chris Lattner
93007dda7d
treat TAILCALL nodes identically to CALL nodes
...
llvm-svn: 21977
2005-05-13 20:29:26 +00:00
Chris Lattner
2c9d871f9b
Build TAILCALL nodes in LowerCallTo, treat them like normal calls everywhere.
...
llvm-svn: 21976
2005-05-13 20:29:13 +00:00
Chris Lattner
f79a885a30
Capitalize
...
llvm-svn: 21964
2005-05-13 19:49:09 +00:00
Chris Lattner
f637d56882
capitalize
...
llvm-svn: 21962
2005-05-13 19:48:34 +00:00
Chris Lattner
df23ee9e48
clarify that these are v9 options
...
llvm-svn: 21960
2005-05-13 19:45:45 +00:00
Chris Lattner
653c791170
hide this option
...
llvm-svn: 21959
2005-05-13 19:44:21 +00:00
Chris Lattner
9d788e93a6
Add an isTailCall flag to LowerCallTo
...
llvm-svn: 21958
2005-05-13 18:50:42 +00:00
Chris Lattner
3a76f85d43
Handle TAILCALL node
...
llvm-svn: 21957
2005-05-13 18:43:43 +00:00
Chris Lattner
83d7e55471
add 'ret imm' instruction
...
llvm-svn: 21945
2005-05-13 17:56:48 +00:00
Chris Lattner
f8795289ff
Realize that we don't support fmod directly, fixing CodeGen/Generic/print-arith-fp.ll
...
llvm-svn: 21939
2005-05-13 16:20:22 +00:00
Chris Lattner
7c3b219c28
Do not CopyFromReg physregs for live-in values. Instead, create a vreg for
...
each live in, and copy the regs from the vregs. As the very first thing we
do in the function, insert copies from the pregs to the vregs. This fixes
problems where the token chain of CopyFromReg was not enough to allow reordering
of the copyfromreg nodes and other unchained nodes (e.g. div, which clobbers
eax on intel).
llvm-svn: 21932
2005-05-13 07:38:09 +00:00
Chris Lattner
01eba53a10
Emit function entry code after lowering hte arguments.
...
llvm-svn: 21931
2005-05-13 07:33:32 +00:00
Chris Lattner
fdc4816996
Allow targets to emit code into the entry block of each function
...
llvm-svn: 21930
2005-05-13 07:23:21 +00:00
Chris Lattner
b06ee3dd65
calling a function with the wrong CC is undefined, turn it into an unreachable
...
instruction. This is useful for catching optimizers that don't preserve
calling conventions
llvm-svn: 21928
2005-05-13 07:09:09 +00:00
Chris Lattner
5cd760d12d
allow a virtual register to be associated with live-in values.
...
llvm-svn: 21927
2005-05-13 07:08:07 +00:00
Reid Spencer
77e3c97c8e
Make sure that decompression checks for the case that bzip2 returns
...
BZ_OK (meaning more data is expected) but there is no more input data. In
this case, the input file is probably truncated. Generate an exception that
indicates this case when its detected.
llvm-svn: 21926
2005-05-13 07:05:37 +00:00
Chris Lattner
b9d99c9b2b
When lowering invokes to calls, amke sure to preserve the calling conv. This
...
fixes Ptrdist/anagram with x86 llcbeta
llvm-svn: 21925
2005-05-13 06:27:02 +00:00
Chris Lattner
dfe45a21b1
Prefer int 0 instead of long 0 for GEP arguments.
...
llvm-svn: 21924
2005-05-13 06:10:12 +00:00
Chris Lattner
670c7f516c
Fix a problem that nate reduced for me.
...
llvm-svn: 21923
2005-05-13 05:17:00 +00:00
Chris Lattner
59bb0edb45
rename variables and functions to match renamed DAG nodes. Bonus feature:
...
I can actually remember which one is which now!
llvm-svn: 21922
2005-05-13 05:09:11 +00:00
Chris Lattner
c7013ec3a9
do not call expandop on the same value more than once. This fixes
...
X86/2004-02-22-Casts.llx
llvm-svn: 21919
2005-05-13 04:45:13 +00:00
Chris Lattner
51de10e0c6
fix a bad typeo
...
llvm-svn: 21917
2005-05-12 23:51:40 +00:00
Chris Lattner
00d2fb482f
update comment
...
llvm-svn: 21916
2005-05-12 23:24:44 +00:00
Chris Lattner
094bbfcebb
rename the ADJCALLSTACKDOWN/ADJCALLSTACKUP nodes to be CALLSEQ_START/BEGIN.
...
llvm-svn: 21915
2005-05-12 23:24:06 +00:00
Chris Lattner
3106dfa185
Add a new -enable-x86-fastcc option that enables passing the first
...
two integer values in registers for the fastcc calling conv.
llvm-svn: 21912
2005-05-12 23:06:28 +00:00
Chris Lattner
dd2700de99
Pass calling convention to use into lower call to
...
llvm-svn: 21900
2005-05-12 19:56:57 +00:00
Chris Lattner
7e08dd591c
Pass in Calling Convention to use into LowerCallTo
...
llvm-svn: 21899
2005-05-12 19:56:45 +00:00
Chris Lattner
d8766cdae2
Enable pattern isel by default
...
llvm-svn: 21898
2005-05-12 19:56:09 +00:00
Chris Lattner
ad48ef0a7d
fix expansion of ct[lt]z nodes
...
llvm-svn: 21896
2005-05-12 19:27:51 +00:00
Chris Lattner
6b5bacbc0b
Expand 64-bit ctlz/cttz nodes for 32-bit targets
...
llvm-svn: 21895
2005-05-12 19:05:01 +00:00
Chris Lattner
3677432d39
Fix uint->fp casts on PPC, allowing UnitTests/2005-05-12-Int64ToFP to
...
work on it.
llvm-svn: 21894
2005-05-12 18:52:34 +00:00
Chris Lattner
dbcdac1ebf
Allow something to be legalized multiple times. This can be used to reduce
...
legalization iteration
llvm-svn: 21892
2005-05-12 16:53:42 +00:00
Chris Lattner
a9a41e8856
Oops, don't do this after we figure out where to insert the call chains.
...
llvm-svn: 21890
2005-05-12 07:00:44 +00:00
Chris Lattner
b58308e6d4
Make sure to expand all nodes, avoiding unintentional node duplication.
...
llvm-svn: 21889
2005-05-12 06:54:21 +00:00
Chris Lattner
9f40cfa0a1
handle a common case generated by the uint64 -> FP code path better
...
llvm-svn: 21888
2005-05-12 06:27:02 +00:00
Chris Lattner
1c248e7462
add fixme
...
llvm-svn: 21887
2005-05-12 06:04:14 +00:00
Chris Lattner
5f2a0d17ab
Fix a really horrible problem that causes the JIT to miscompile any program
...
that use 64-bit integers on 32-bit hosts.
llvm-svn: 21886
2005-05-12 06:01:28 +00:00
Chris Lattner
1196356365
Fix a problem where early legalization can cause token chain problems.
...
llvm-svn: 21885
2005-05-12 04:49:08 +00:00
Chris Lattner
6b0a45e42c
These targets don't like setcc
...
llvm-svn: 21884
2005-05-12 02:06:00 +00:00
Chris Lattner
b38ffd7fbf
Make legalize a bit more efficient, and canonicalize sub X, C -> add X, -C
...
llvm-svn: 21882
2005-05-12 00:17:04 +00:00
Nate Begeman
e84f776b5d
Necessary changes to codegen cttz efficiently on PowerPC
...
1. Teach LegalizeDAG how to better legalize CTTZ if the target doesn't have
CTPOP, but does have CTLZ
2. Teach PPC32 how to do sub x, const -> add x, -const for valid consts
3. Teach PPC32 how to do and (xor a, -1) b -> andc b, a
4. Teach PPC32 that ISD::CTLZ -> PPC::CNTLZW
llvm-svn: 21880
2005-05-11 23:43:56 +00:00
Tanya Lattner
265167f8db
Fixed issue that broke ssa.
...
llvm-svn: 21878
2005-05-11 21:45:03 +00:00
Chris Lattner
da3dd2f9e2
fix some GCC 4 warnings
...
llvm-svn: 21877
2005-05-11 21:40:40 +00:00
John Criswell
38c97a63d4
Added support for decomposing constant expressions containing shr and shl
...
instructions.
Review of this commit would be greatly appreciated.
llvm-svn: 21876
2005-05-11 21:16:42 +00:00
Chris Lattner
8f2d079b36
Fix lowering of ctlz, so now UnitTests/2005-05-11-Popcount-ffs-fls passes
...
with the CBE
llvm-svn: 21875
2005-05-11 20:24:12 +00:00
Chris Lattner
303ac68c80
Fix lowering of cttz to work with signed values
...
llvm-svn: 21874
2005-05-11 20:02:14 +00:00
Chris Lattner
330f44f3b6
fix and concisify intinsic lowering for ctpop. Unfortunately, this code
...
looks completely untested. :(
llvm-svn: 21873
2005-05-11 19:42:05 +00:00
Chris Lattner
eeeaf45bba
Fix the last remaining bug preventing us from switching the X86 BE over
...
from the simple isel to the pattern isel. This forces inserted libcalls
to serialize against other function calls, which was breaking
UnitTests/2005-05-12-Int64ToFP. Hopefully this will fix issues on other
targets as well.
llvm-svn: 21872
2005-05-11 19:02:11 +00:00
Chris Lattner
296754995e
Do not memoize ADJCALLSTACKDOWN nodes, provide a method to hack on them.
...
llvm-svn: 21871
2005-05-11 18:57:39 +00:00
Chris Lattner
74763db128
wrap long line
...
llvm-svn: 21870
2005-05-11 18:57:06 +00:00
Chris Lattner
d76582b540
Make sure to legalize generated ctpop nodes, convert tabs to spaces
...
llvm-svn: 21868
2005-05-11 18:35:21 +00:00
Duraid Madina
8ad9786fcd
expand count-leading/trailing-zeros; the test 2005-05-11-Popcount-ffs-fls.c
...
should now pass (the "LLVM" and "REF" results should be identical)
llvm-svn: 21866
2005-05-11 08:45:08 +00:00
Chris Lattner
b452b5aa42
Add some notes for expanding clz/ctz
...
llvm-svn: 21862
2005-05-11 05:27:09 +00:00
Chris Lattner
4f05136f61
Simplify this code, use the proper shift amount
...
llvm-svn: 21861
2005-05-11 05:21:31 +00:00
Duraid Madina
b9062e56cf
add the popcount instruction and support this in the isel
...
the primary user of this will probably end up being find-first-set-bit/find-
last-set-bit, which i'll get around to...
llvm-svn: 21860
2005-05-11 05:16:09 +00:00
Chris Lattner
3edc8ecb53
Legalize this correctly
...
llvm-svn: 21859
2005-05-11 05:09:47 +00:00
Chris Lattner
d5d2886ee7
No really IA*64* :)
...
llvm-svn: 21858
2005-05-11 05:03:56 +00:00
Chris Lattner
e358ac532b
X86 has more than just 32-bit registers
...
llvm-svn: 21857
2005-05-11 05:00:34 +00:00
Chris Lattner
457996c4a6
implement expansion of ctpop nodes, implementing CodeGen/Generic/llvm-ct-intrinsics.ll
...
llvm-svn: 21856
2005-05-11 04:51:16 +00:00
Chris Lattner
ce84b90a3d
Print bit count nodes correctly
...
llvm-svn: 21855
2005-05-11 04:50:30 +00:00
Chris Lattner
593c0e8957
Do not use "" as a sentinal for a missing argument! This fixes PR560.
...
llvm-svn: 21850
2005-05-10 23:20:17 +00:00
Misha Brukman
4fda633c59
Why output multiple strings, let the compiler concatenate them for us for free
...
llvm-svn: 21845
2005-05-10 22:03:50 +00:00
Misha Brukman
d264be8e32
* Convert tabs to spaces, fix code alignment
...
* Remove trailing whitespace
* Wrap long lines
llvm-svn: 21844
2005-05-10 22:02:28 +00:00
Chris Lattner
8230bddde2
Convert feature of the simple isel over for the pattern isel to use.
...
llvm-svn: 21840
2005-05-10 03:53:18 +00:00
Chris Lattner
758f2fe1a3
Fix Reassociate/shifttest.ll
...
llvm-svn: 21839
2005-05-10 03:39:25 +00:00
Jeff Cohen
afc58006b7
Silence some VC++ warnings
...
llvm-svn: 21838
2005-05-10 02:22:38 +00:00
Chris Lattner
f221558c21
If a function contains no allocas, all of the calls in it are trivially
...
suitable for tail calls.
llvm-svn: 21836
2005-05-09 23:51:13 +00:00
Chris Lattner
5edb4c4af6
The semantics of cast X to bool are a comparison against zero, not a truncation!
...
llvm-svn: 21833
2005-05-09 22:17:13 +00:00
Chris Lattner
d96aea21d7
Implement READPORT/WRITEPORT, implementing the last X86 regression tests
...
that were failing with the pattern selector. Note that the support that
existed in the simple selector was clearly broken in several ways though
(which has also been fixed).
llvm-svn: 21831
2005-05-09 21:17:38 +00:00
Chris Lattner
6a55b1d4dd
do not emit illegal instructions
...
llvm-svn: 21830
2005-05-09 21:06:04 +00:00
Chris Lattner
7ba0699b05
Fix the syntax of the i/o instructions, these are obviously unused.
...
llvm-svn: 21829
2005-05-09 20:49:20 +00:00
Chris Lattner
46b51ab388
legalize readio/writeio into load/stores, fixing CodeGen/X86/io.llx with
...
the pattern isel.
llvm-svn: 21828
2005-05-09 20:37:29 +00:00
Chris Lattner
95c836384b
legalize readio/writeio into a load/store if requested
...
llvm-svn: 21827
2005-05-09 20:36:57 +00:00
Chris Lattner
7cc8edfc30
legalize READPORT, WRITEPORT, READIO, WRITEIO, at least in the basic cases
...
where they are directly supported by the architecture. Wrap a bunch of
long lines :(
llvm-svn: 21826
2005-05-09 20:23:03 +00:00
Chris Lattner
af6bde0db6
Add support for matching the READPORT, WRITEPORT, READIO, WRITEIO intrinsics
...
llvm-svn: 21825
2005-05-09 20:22:36 +00:00
Chris Lattner
eee649df34
Add support for READPORT, WRITEPORT, READIO, WRITEIO
...
llvm-svn: 21824
2005-05-09 20:22:17 +00:00
Chris Lattner
b28f865865
restore some non-dead code I removed last night breaking double casts to
...
uint
llvm-svn: 21821
2005-05-09 18:37:02 +00:00
Chris Lattner
333ae3d837
fold and (shl X, C1), C2 -> rlwinm when possible. Many other cases are possible,
...
include and (srl) and the inverses (shl and) etc.
llvm-svn: 21820
2005-05-09 17:39:48 +00:00
Chris Lattner
c3fa88e7c8
Fold shifts into subsequent SHL's. These shifts often arise due to addrses
...
arithmetic lowering.
llvm-svn: 21818
2005-05-09 17:06:45 +00:00
Duraid Madina
64a52fc615
fix and cleanup constmul code a bit, this fixes mediabench/toast and
...
probably a couple of other tests.
llvm-svn: 21814
2005-05-09 13:18:34 +00:00
Chris Lattner
3094cec3c9
Wrap long lines, remove dead code that is now handled by legalize
...
llvm-svn: 21811
2005-05-09 05:40:26 +00:00
Chris Lattner
5d291fa443
Fix FP -> bool casts
...
llvm-svn: 21810
2005-05-09 05:33:18 +00:00
Chris Lattner
d3bb28d97a
implement and.ll:test33
...
llvm-svn: 21809
2005-05-09 04:58:36 +00:00
Chris Lattner
a1e633ef7a
Don't use the load/store instruction as the source pointer, use the pointer
...
being stored/loaded through!
llvm-svn: 21806
2005-05-09 04:28:51 +00:00
Chris Lattner
bfbefe0837
memoize all nodes, even null Value* nodes. Do not add two token chain outputs
...
llvm-svn: 21805
2005-05-09 04:14:13 +00:00
Chris Lattner
b85030373d
wrap long lines
...
llvm-svn: 21804
2005-05-09 04:08:33 +00:00
Chris Lattner
6ffae1a3ec
Print SrcValue nodes correctly
...
llvm-svn: 21803
2005-05-09 04:08:27 +00:00
Chris Lattner
65d61d9d44
Fix X86/2005-05-08-FPStackifierPHI.ll: ugly gross hack.
...
llvm-svn: 21801
2005-05-09 03:36:39 +00:00
Chris Lattner
a2edd7e449
Preserve CC's when linking modules
...
llvm-svn: 21799
2005-05-09 01:09:39 +00:00
Chris Lattner
2d9c054f4e
Preserve calling conventions when doing IPO
...
llvm-svn: 21798
2005-05-09 01:05:50 +00:00
Chris Lattner
eff214d7de
wrap long lines, preserve calling conventions when cloning functions and
...
turning calls into invokes
llvm-svn: 21797
2005-05-09 01:04:34 +00:00
Chris Lattner
5a7f1642b7
By definition, 'tail' calls cannot access the stack frame of their caller.
...
Expose this as a simple form of mod/ref information. This implements
BasicAA/tailcall-modref.ll
llvm-svn: 21796
2005-05-08 23:58:12 +00:00
Chris Lattner
fb4a99b117
Verify that varargs functions all have ccc
...
llvm-svn: 21792
2005-05-08 22:27:09 +00:00
Chris Lattner
b57ab2e975
Convert non-address taken functions with C calling conventions to fastcc.
...
llvm-svn: 21791
2005-05-08 22:18:06 +00:00
Chris Lattner
d5a353a675
Implement Reassociate/mul-neg-add.ll
...
llvm-svn: 21788
2005-05-08 21:41:35 +00:00
Chris Lattner
f535f6e808
Bail out earlier
...
llvm-svn: 21786
2005-05-08 21:33:47 +00:00
Chris Lattner
39f74def7f
Teach reassociate that 0-X === X*-1
...
llvm-svn: 21785
2005-05-08 21:28:52 +00:00
Chris Lattner
319ac8f822
Fix PR557 and basictest[34].ll.
...
This makes reassociate realize that loads should be treated as unmovable, and
gives distinct ranks to distinct values defined in the same basic block, allowing
reassociate to do its thing.
llvm-svn: 21783
2005-05-08 20:57:04 +00:00
Chris Lattner
b5de308c5f
Add debugging information
...
llvm-svn: 21781
2005-05-08 20:09:57 +00:00
Chris Lattner
e74082156b
eliminate gotos
...
llvm-svn: 21780
2005-05-08 19:48:43 +00:00
Chris Lattner
6d85b91b24
Wrap long lines. Fix "warning: conflicting types for built-in function 'memset'"
...
warning from the CBE+GCC.
llvm-svn: 21779
2005-05-08 19:46:29 +00:00
Chris Lattner
a9d5fdd4fd
Improve reassociation handling of inverses, implementing inverses.ll.
...
llvm-svn: 21778
2005-05-08 18:59:37 +00:00
Chris Lattner
afbdc0b969
clean up and modernize this pass.
...
llvm-svn: 21776
2005-05-08 18:45:26 +00:00
Chris Lattner
7b41539f32
Strength reduce SAR into SHR if there is no way sign bits could be shifted
...
in. This tends to get cases like this:
X = cast ubyte to int
Y = shr int X, ...
Tested by: shift.ll:test24
llvm-svn: 21775
2005-05-08 17:34:56 +00:00
Chris Lattner
c2670a0da6
Refactor some code
...
llvm-svn: 21772
2005-05-08 00:19:31 +00:00
Chris Lattner
cd7caaa866
Handle some simple cases where we can see that values get annihilated.
...
llvm-svn: 21771
2005-05-08 00:08:33 +00:00
Chris Lattner
1e84d885b7
Fix a miscompilation of crafty by clobbering the "A" variable.
...
llvm-svn: 21770
2005-05-07 23:49:08 +00:00
Chris Lattner
5662127ed6
Rewrite the guts of the reassociate pass to be more efficient and logical. Instead
...
of trying to do local reassociation tweaks at each level, only process an expression
tree once (at its root). This does not improve the reassociation pass in any real way.
llvm-svn: 21768
2005-05-07 21:59:39 +00:00
Reid Spencer
b4fdf14d34
* Add two strlen optimizations:
...
strlen(x) != 0 -> *x != 0
strlen(x) == 0 -> *x == 0
* Change nested statistics to use style of other LLVM statistics so that
only the name of the optimization (simplify-libcalls) is used as the
statistic name, and the description indicates which specific all is
optimized. Cuts down on some redundancy and saves a few bytes of space.
* Make note of stpcpy optimization that could be done.
llvm-svn: 21766
2005-05-07 20:15:59 +00:00
Reid Spencer
65d553cd03
Don't increment the counter unless the debug flag is set.
...
llvm-svn: 21762
2005-05-07 04:59:45 +00:00
Chris Lattner
3edf09a5eb
Convert shifts to muls to assist reassociation. This implements
...
Reassociate/shifttest.ll
llvm-svn: 21761
2005-05-07 04:24:13 +00:00
Chris Lattner
b1ea71fbcd
Simplify the code and rearrange it. No major functionality changes here.
...
llvm-svn: 21759
2005-05-07 04:08:02 +00:00
Jeff Cohen
eafa15885e
Silence VC++ warnings about unsafe mixing of ints and bools with the | operator.
...
llvm-svn: 21758
2005-05-07 02:44:04 +00:00
Chris Lattner
f6775e16bf
remove some dead (always dynamically false) flags
...
llvm-svn: 21752
2005-05-06 22:35:09 +00:00
Chris Lattner
1f6d3b2344
encode calling conventions for call/invoke instructions.
...
llvm-svn: 21751
2005-05-06 22:34:01 +00:00
Chris Lattner
494f3da7b3
encode function calling convs in the bytecode file. invoke and call are
...
still to come.
llvm-svn: 21749
2005-05-06 20:42:57 +00:00
Chris Lattner
562734e130
parse new calling conv specifiers
...
llvm-svn: 21748
2005-05-06 20:27:19 +00:00
Chris Lattner
de5b492521
wrap a longline
...
llvm-svn: 21747
2005-05-06 20:27:03 +00:00
Chris Lattner
26a44493ef
add support for explicit calling conventions
...
llvm-svn: 21746
2005-05-06 20:26:43 +00:00
Chris Lattner
0995b3da02
use splice instead of remove/insert for a minor speedup
...
llvm-svn: 21743
2005-05-06 19:58:35 +00:00
Chris Lattner
146014b748
remove some ugly hacks that are no longer needed since andrew removed the
...
varargs munging code
llvm-svn: 21742
2005-05-06 19:49:51 +00:00
Chris Lattner
c9be572154
BAD typeo which caused many testsuite failures last night. Note to self, do
...
not change code after testing it without retesting!
llvm-svn: 21741
2005-05-06 17:13:16 +00:00
Chris Lattner
1bc2753d69
clean up the CBE output a bit
...
llvm-svn: 21740
2005-05-06 06:58:42 +00:00
Chris Lattner
f70b2785b7
add tail marker as a comment
...
llvm-svn: 21739
2005-05-06 06:53:07 +00:00
Chris Lattner
4e9d804f1d
Make the stub functions be tail calls
...
llvm-svn: 21738
2005-05-06 06:48:54 +00:00
Chris Lattner
146447f57a
Preserve tail marker
...
llvm-svn: 21737
2005-05-06 06:48:21 +00:00
Chris Lattner
0187977904
Implement Transforms/Inline/inline-tail.ll
...
llvm-svn: 21736
2005-05-06 06:47:52 +00:00
Chris Lattner
3d4098b1e0
preserve the tail marker
...
llvm-svn: 21734
2005-05-06 06:46:58 +00:00
Chris Lattner
47c5cd63f6
lex tail
...
llvm-svn: 21729
2005-05-06 06:20:33 +00:00
Chris Lattner
59d23baab1
add bytecode reader support for tail calls
...
llvm-svn: 21727
2005-05-06 06:13:34 +00:00
Chris Lattner
72ffd7e7d5
Add a 'tail' marker for call instructions, patch contributed by
...
Alexander Friedman.
llvm-svn: 21722
2005-05-06 05:51:46 +00:00
Chris Lattner
99db0ab3df
Wrap long lines
...
llvm-svn: 21720
2005-05-06 05:34:40 +00:00
Chris Lattner
b953e27f85
DCE intrinsic instructions without side effects.
...
llvm-svn: 21719
2005-05-06 05:27:34 +00:00
Chris Lattner
4f7bba1106
These intrinsics do not access memory
...
llvm-svn: 21718
2005-05-06 05:21:04 +00:00
Chris Lattner
2b4c801d10
Teach instcombine propagate zeroness through shl instructions, implementing
...
and.ll:test31
llvm-svn: 21717
2005-05-06 04:53:20 +00:00
Chris Lattner
ead76729cc
Implement shift.ll:test23. If we are shifting right then immediately truncating
...
the result, turn signed shift rights into unsigned shift rights if possible.
This leads to later simplification and happens *often* in 176.gcc. For example,
this testcase:
struct xxx { unsigned int code : 8; };
enum codes { A, B, C, D, E, F };
int foo(struct xxx *P) {
if ((enum codes)P->code == A)
bar();
}
used to be compiled to:
int %foo(%struct.xxx* %P) {
%tmp.1 = getelementptr %struct.xxx* %P, int 0, uint 0 ; <uint*> [#uses=1]
%tmp.2 = load uint* %tmp.1 ; <uint> [#uses=1]
%tmp.3 = cast uint %tmp.2 to int ; <int> [#uses=1]
%tmp.4 = shl int %tmp.3, ubyte 24 ; <int> [#uses=1]
%tmp.5 = shr int %tmp.4, ubyte 24 ; <int> [#uses=1]
%tmp.6 = cast int %tmp.5 to sbyte ; <sbyte> [#uses=1]
%tmp.8 = seteq sbyte %tmp.6, 0 ; <bool> [#uses=1]
br bool %tmp.8, label %then, label %UnifiedReturnBlock
Now it is compiled to:
%tmp.1 = getelementptr %struct.xxx* %P, int 0, uint 0 ; <uint*> [#uses=1]
%tmp.2 = load uint* %tmp.1 ; <uint> [#uses=1]
%tmp.2 = cast uint %tmp.2 to sbyte ; <sbyte> [#uses=1]
%tmp.8 = seteq sbyte %tmp.2, 0 ; <bool> [#uses=1]
br bool %tmp.8, label %then, label %UnifiedReturnBlock
which is the difference between this:
foo:
subl $4, %esp
movl 8(%esp), %eax
movl (%eax), %eax
shll $24, %eax
sarl $24, %eax
testb %al, %al
jne .LBBfoo_2
and this:
foo:
subl $4, %esp
movl 8(%esp), %eax
movl (%eax), %eax
testb %al, %al
jne .LBBfoo_2
This occurs 3243 times total in the External tests, 215x in povray,
6x in each f2c'd program, 1451x in 176.gcc, 7x in crafty, 20x in perl,
25x in gap, 3x in m88ksim, 25x in ijpeg.
Maybe this will cause a little jump on gcc tommorow :)
llvm-svn: 21715
2005-05-06 04:18:52 +00:00
Chris Lattner
20b5bce229
Implement xor.ll:test22
...
llvm-svn: 21713
2005-05-06 02:07:39 +00:00
Chris Lattner
27f6e62cac
implement and.ll:test30 and set.ll:test21
...
llvm-svn: 21712
2005-05-06 01:53:19 +00:00
Chris Lattner
d38c600c9d
implement or.ll:test20
...
llvm-svn: 21709
2005-05-06 00:58:50 +00:00
Misha Brukman
1996bf6ea5
* Order #includes alphabetically
...
* Remove commented-out debug printouts
llvm-svn: 21707
2005-05-05 23:45:17 +00:00
Misha Brukman
d29b27d73b
Remove extra blank line
...
llvm-svn: 21706
2005-05-05 23:43:47 +00:00
Misha Brukman
f52511fcc6
Remove vim settings from source code; people should use llvm/utils/vim/vimrc
...
llvm-svn: 21704
2005-05-05 22:33:09 +00:00
Chris Lattner
64134a43a1
add support for undef values of opaque type, addressing PR541
...
llvm-svn: 21701
2005-05-05 22:21:19 +00:00
Chris Lattner
c390fbea0d
Add some extra checks. Opaque types don't have a null marker.
...
llvm-svn: 21700
2005-05-05 20:57:00 +00:00
Chris Lattner
6e8167d1c2
When hitting an unsupported intrinsic, actually print it
...
Lower debug info to noops.
llvm-svn: 21698
2005-05-05 17:55:17 +00:00
Andrew Lenharth
09c3c4add4
ctpop lowering in legalize
...
llvm-svn: 21697
2005-05-05 15:55:21 +00:00
Chris Lattner
adcc532d05
Fix a bug compimling Ruby, fixing this testcase:
...
LowerSetJmp/2005-05-05-OldUses.ll
llvm-svn: 21696
2005-05-05 15:47:43 +00:00
Andrew Lenharth
8e2beec4d1
fix typo
...
llvm-svn: 21693
2005-05-04 19:25:37 +00:00
Andrew Lenharth
58ff51b153
Well, add support for ct* for 21264 only.
...
21164 is broken until expand works.
llvm-svn: 21692
2005-05-04 19:12:09 +00:00
Andrew Lenharth
9282d00d4f
Make promoteOp work for CT*
...
Proof?
ubyte %bar(ubyte %x) {
entry:
%tmp.1 = call ubyte %llvm.ctlz( ubyte %x )
ret ubyte %tmp.1
}
==>
zapnot $16,1,$0
CTLZ $0,$0
subq $0,56,$0
zapnot $0,1,$0
ret $31,($26),1
llvm-svn: 21691
2005-05-04 19:11:05 +00:00
Chris Lattner
1c462db06f
Instcombine: cast (X != 0) to int, cast (X == 1) to int -> X iff X has only the low bit set.
...
This implements set.ll:test20.
This triggers 2x on povray, 9x on mesa, 11x on gcc, 2x on crafty, 1x on eon,
6x on perlbmk and 11x on m88ksim.
It allows us to compile these two functions into the same code:
struct s { unsigned int bit : 1; };
unsigned foo(struct s *p) {
if (p->bit)
return 1;
else
return 0;
}
unsigned bar(struct s *p) { return p->bit; }
llvm-svn: 21690
2005-05-04 19:10:26 +00:00
Reid Spencer
c564fd819c
Implement the IsDigitOptimization for simplifying calls to the isdigit
...
library function:
isdigit(chr) -> 0 or 1 if chr is constant
isdigit(chr) -> chr - '0' <= 9 otherwise
Although there are many calls to isdigit in llvm-test, most of them are
compiled away by macros leaving only this:
2 MultiSource/Applications/hexxagon
llvm-svn: 21688
2005-05-04 18:58:28 +00:00
Reid Spencer
8d2736401b
* Correct the function prototypes for some of the functions to match the
...
actual spec (int -> uint)
* Add the ability to get/cache the strlen function prototype.
* Make sure generated values are appropriately named for debugging purposes
* Add the SPrintFOptimiation for 4 casts of sprintf optimization:
sprintf(str,cstr) -> llvm.memcpy(str,cstr) (if cstr has no %)
sprintf(str,"") -> store sbyte 0, str
sprintf(str,"%s",src) -> llvm.memcpy(str,src) (if src is constant)
sprintf(str,"%c",chr) -> store chr, str ; store sbyte 0, str+1
The sprintf optimization didn't fire as much as I had hoped:
2 MultiSource/Applications/SPASS
5 MultiSource/Benchmarks/McCat/18-imp
22 MultiSource/Benchmarks/Prolangs-C/TimberWolfMC
1 MultiSource/Benchmarks/Prolangs-C/assembler
6 MultiSource/Benchmarks/Prolangs-C/unix-smail
2 MultiSource/Benchmarks/mediabench/mpeg2/mpeg2dec
llvm-svn: 21679
2005-05-04 03:20:21 +00:00
Andrew Lenharth
8b64bd0fd5
Implement count leading zeros (ctlz), count trailing zeros (cttz), and count
...
population (ctpop). Generic lowering is implemented, however only promotion
is implemented for SelectionDAG at the moment.
More coming soon.
llvm-svn: 21676
2005-05-03 17:19:30 +00:00
Chris Lattner
9620dd281d
fix a bug in the 1 index GEP handling code
...
llvm-svn: 21670
2005-05-03 16:44:45 +00:00
Reid Spencer
f52c228416
Implement optimizations for the strchr and llvm.memset library calls.
...
Neither of these activated as many times as was hoped:
strchr:
9 MultiSource/Applications/siod
1 MultiSource/Applications/d
2 MultiSource/Prolangs-C/archie-client
1 External/SPEC/CINT2000/176.gcc/176.gcc
llvm.memset:
no hits
llvm-svn: 21669
2005-05-03 07:23:44 +00:00
Chris Lattner
e53a188512
add direct support for making GEP instrs with one index
...
llvm-svn: 21665
2005-05-03 05:43:30 +00:00
Jeff Cohen
d33e8df701
Use ANSI-approved way of getting the value infinity (otherwise VC++ won't compile it)
...
llvm-svn: 21662
2005-05-03 03:13:01 +00:00
Reid Spencer
0c484ea7de
Avoid garbage output in the statistics display by ensuring that the
...
strings passed to Statistic's constructor are not destructable. The stats
are printed during static destruction and the SimplifyLibCalls module was
getting destructed before the statistics.
llvm-svn: 21661
2005-05-03 02:54:54 +00:00
Reid Spencer
123f4e393f
Add the StrNCmpOptimization which is similar to strcmp.
...
Unfortunately, this optimization didn't trigger on any llvm-test tests.
llvm-svn: 21660
2005-05-03 01:43:45 +00:00
Reid Spencer
a5fcd1660f
Implement the fprintf optimization which converts calls like this:
...
fprintf(F,"hello") -> fwrite("hello",strlen("hello"),1,F)
fprintf(F,"%s","hello") -> fwrite("hello",strlen("hello"),1,F)
fprintf(F,"%c",'x') -> fputc('c',F)
This optimization fires severals times in llvm-test:
313 MultiSource/Applications/Burg
302 MultiSource/Benchmarks/Prolangs-C/TimberWolfMC
189 MultiSource/Benchmarks/Prolangs-C/mybison
175 MultiSource/Benchmarks/Prolangs-C/football
130 MultiSource/Benchmarks/Prolangs-C/unix-tbl
llvm-svn: 21657
2005-05-02 23:59:26 +00:00
Andrew Lenharth
d46211fc03
fold fp div by 0 to inf, the way gcc does. This is legal according to the FP spec
...
llvm-svn: 21655
2005-05-02 21:25:47 +00:00
Andrew Lenharth
1e1117ed7a
Remove support for 1.0 style varargs
...
amusing of course, because we will have to go back to those semantics soon
llvm-svn: 21654
2005-05-02 19:07:27 +00:00
John Criswell
d1933cb2e4
Fixed a comment.
...
llvm-svn: 21653
2005-05-02 14:47:42 +00:00
Duraid Madina
4d9c8f8dce
support multiplication by constant negative integers
...
this constmul code is still buggy though, so beware. mul by 7427 is currently
broken, for example. will fix it when I get a moment :)
llvm-svn: 21652
2005-05-02 07:27:14 +00:00
Duraid Madina
7a185a79a5
add support for bools to SELECT, this fixes Prolangs-C/bison from the
...
testsuite, however 09-vor is still dead (hopefully for other reasons!)
llvm-svn: 21651
2005-05-02 06:41:13 +00:00
Chris Lattner
7db64049a6
Implement getelementptr.ll:test11
...
llvm-svn: 21647
2005-05-01 04:42:15 +00:00
Chris Lattner
cee86a7095
Check for volatile loads only once.
...
Implement load.ll:test7
llvm-svn: 21645
2005-05-01 04:24:53 +00:00
Tanya Lattner
845b0cc908
SMS for superblocks.
...
llvm-svn: 21643
2005-05-01 01:27:47 +00:00
Tanya Lattner
b9da851880
Added extra constructor for superblocks.
...
llvm-svn: 21642
2005-05-01 01:25:53 +00:00
Tanya Lattner
425f215095
Fixed bug in searchPath function for finding nodes between two recurrences.
...
Changed dependence analyzer to only use dep distances of 2 or less.
This is experimental.
Changed MSchedGraph to be able to represent more then one BB (first steps).
llvm-svn: 21641
2005-04-30 23:07:59 +00:00
Andrew Lenharth
936709ad19
I was sure I had thought about this and there was a reason it should work.
...
But it is entirely possible I am just crazy.
llvm-svn: 21640
2005-04-30 14:19:13 +00:00
Alkis Evlogimenos
66f1632de8
Do not use deprecated APIs
...
llvm-svn: 21639
2005-04-30 07:13:31 +00:00
Reid Spencer
f7511e4fe2
Fix a comment that stated the wrong thing.
...
llvm-svn: 21638
2005-04-30 06:45:47 +00:00
Chris Lattner
b0f53013d6
Eliminate some random whitespace
...
llvm-svn: 21637
2005-04-30 04:44:07 +00:00
Chris Lattner
fe72cdf838
Codegen and legalize sin/cos/llvm.sqrt as FSIN/FCOS/FSQRT calls. This patch
...
was contributed by Morten Ofstad, with some minor tweaks and bug fixes added
by me.
llvm-svn: 21636
2005-04-30 04:43:14 +00:00
Chris Lattner
b0af0dd919
Doesn't support these nodes
...
llvm-svn: 21634
2005-04-30 04:26:56 +00:00
Chris Lattner
ce0d8c2408
This target doesn't support the FSIN/FCOS/FSQRT nodes yet
...
llvm-svn: 21633
2005-04-30 04:26:06 +00:00
Chris Lattner
15d29b0220
Add support for FSIN/FCOS when unsafe math ops are enabled. Patch contributed by
...
Morten Ofstad!
llvm-svn: 21632
2005-04-30 04:25:35 +00:00
Chris Lattner
663664d10c
Add support for llvm.sqrt and sin/cos if unsafe math optimizations are enabled.
...
llvm-svn: 21631
2005-04-30 04:12:40 +00:00
Chris Lattner
05d8a36ba7
Expose an option allowing unsafe math optimizations. Patch contributed by
...
Morten Ofstad!
llvm-svn: 21630
2005-04-30 04:09:52 +00:00
Chris Lattner
0366e4c0d3
Lower llvm.sqrt -> fsqrt/sqrt
...
llvm-svn: 21629
2005-04-30 04:07:50 +00:00
Chris Lattner
234ffe2395
Add llvm.sqrt intrinsic, patch contributed by Morten Ofstad
...
llvm-svn: 21627
2005-04-30 03:44:07 +00:00
Reid Spencer
cc551c4345
* Don't depend on "guessing" what a FILE* is, just require that the actual
...
type be obtained from a CallInst we're optimizing.
* Make it possible for getConstantStringLength to return the ConstantArray
that it extracts in case the content is needed by an Optimization.
* Implement the strcmp optimization
* Implement the toascii optimization
This pass is now firing several to many times in the following MultiSource
tests:
Applications/Burg - 7 (strcat,strcpy)
Applications/siod - 13 (strcat,strcpy,strlen)
Applications/spiff - 120 (exit,fputs,strcat,strcpy,strlen)
Applications/treecc - 66 (exit,fputs,strcat,strcpy)
Applications/kimwitu++ - 34 (strcmp,strcpy,strlen)
Applications/SPASS - 588 (exit,fputs,strcat,strcpy,strlen)
llvm-svn: 21626
2005-04-30 03:17:54 +00:00
Reid Spencer
a32eb179ed
Implement the optimizations for "pow" and "fputs" library calls.
...
llvm-svn: 21618
2005-04-29 09:39:47 +00:00
Reid Spencer
ff5cc3cb16
Remove optimizations that don't require both operands to be constant. These
...
are moved to simplify-libcalls pass.
llvm-svn: 21614
2005-04-29 05:55:35 +00:00
Jeff Cohen
6dccb593c9
Consistently use 'class' to silence VC++
...
llvm-svn: 21612
2005-04-29 03:05:44 +00:00
Reid Spencer
fb6e0590a8
* Add constant folding for additional floating point library calls such as
...
sinh, cosh, etc.
* Make the name comparisons for the fp libcalls a little more efficient by
switching on the first character of the name before doing comparisons.
llvm-svn: 21611
2005-04-28 23:01:59 +00:00
Chris Lattner
27a534f181
Add support for FSQRT node, patch contributed by Morten Ofstad
...
llvm-svn: 21610
2005-04-28 22:07:18 +00:00
Chris Lattner
fb0d0ea349
These functions can set errno!
...
llvm-svn: 21609
2005-04-28 21:52:31 +00:00
Chris Lattner
236cef3563
Add some new X86 instrs, patch contributed by Morten Ofstad
...
llvm-svn: 21608
2005-04-28 21:50:05 +00:00
Chris Lattner
2f7a83ffbf
Codegen fabs/fabsf as FABS. Patch contributed by Morten Ofstad
...
llvm-svn: 21607
2005-04-28 21:48:42 +00:00
Chris Lattner
6ec8bb9e8d
Legalize FSQRT, FSIN, FCOS nodes, patch contributed by Morten Ofstad
...
llvm-svn: 21606
2005-04-28 21:44:33 +00:00
Chris Lattner
4678a790e6
Add FSQRT, FSIN, FCOS nodes, patch contributed by Morten Ofstad
...
llvm-svn: 21605
2005-04-28 21:44:03 +00:00
Reid Spencer
e7eb17c64b
Remove from the TODO list those optimizations that are already handled by
...
constant folding implemented in lib/Transforms/Utils/Local.cpp.
llvm-svn: 21604
2005-04-28 18:05:16 +00:00
Reid Spencer
b5d4b854ea
Document additional libcall transformations that need to be written.
...
Help Wanted!
There's a lot of them to write.
llvm-svn: 21603
2005-04-28 04:40:06 +00:00
Reid Spencer
49cfe25457
Doxygenate.
...
llvm-svn: 21602
2005-04-27 21:29:20 +00:00
Chris Lattner
96704dee49
remove 'statement with no effect' warning
...
llvm-svn: 21600
2005-04-27 20:12:17 +00:00
Andrew Lenharth
2a00530fa7
Implement Value* tracking for loads and stores in the selection DAG. This enables one to use alias analysis in the backends.
...
(TRUNK)Stores and (EXT|ZEXT|SEXT)Loads have an extra SDOperand which is a SrcValueSDNode which contains the Value*. Note that if the operation is introduced by the backend, it will still have the operand, but the value* will be null.
llvm-svn: 21599
2005-04-27 20:10:01 +00:00
Chris Lattner
11f6bc02a9
Unbreak the sparc backend.
...
llvm-svn: 21598
2005-04-27 18:57:15 +00:00
Reid Spencer
b7cff5d9d1
More Cleanup:
...
* Name the instructions by appending to name of original
* Factor common part out of a switch statement.
llvm-svn: 21597
2005-04-27 17:46:54 +00:00
Duraid Madina
2f8f3f018d
clean up some warnings
...
llvm-svn: 21590
2005-04-27 11:57:39 +00:00
Reid Spencer
1eb67fef62
This is a cleanup commit:
...
* Correct stale documentation in a few places
* Re-order the file to better associate things and reduce line count
* Make the pass thread safe by caching the Function* objects needed by the
optimizers in the pass object instead of globally.
* Provide the SimplifyLibCalls pass object to the optimizer classes so they
can access cached Function* objects and TargetData info
* Make sure the pass resets its cache if the Module passed to runOnModule
changes
* Rename CallOptimizer LibCallOptimization. All the classes are named
*Optimization while the objects are *Optimizer.
* Don't cache Function* in the optimizer objects because they could be used
by multiple PassManager's running in multiple threads
* Add an optimization for strcpy which is similar to strcat
* Add a "TODO" list at the end of the file for ideas on additional libcall
optimizations that could be added (get ideas from other compilers).
Sorry for the huge diff. Its mostly reorganization of code. That won't
happen again as I believe the design and infrastructure for this pass is
now done or close to it.
llvm-svn: 21589
2005-04-27 07:54:40 +00:00
Chris Lattner
792ae155ad
detect functions that never return, and turn the instruction following a
...
call to them into an 'unreachable' instruction.
This triggers a bunch of times, particularly on gcc:
gzip: 36
gcc: 601
eon: 12
bzip: 38
llvm-svn: 21587
2005-04-27 04:52:23 +00:00
Reid Spencer
e3b60245eb
Prefix the debug statistics so they group together.
...
llvm-svn: 21583
2005-04-27 00:20:23 +00:00
Reid Spencer
27f80b8c96
In debug builds, make a statistic for each kind of call optimization. This
...
helps track down what gets triggered in the pass so its easier to identify
good test cases.
llvm-svn: 21582
2005-04-27 00:05:45 +00:00
Chris Lattner
bd077a1945
This analysis doesn't take 'throwing' into consideration, it looks at
...
'unwinding'
llvm-svn: 21581
2005-04-26 23:53:25 +00:00
Reid Spencer
ddef064121
Fix up the debug statement to actually use a newline .. radical concept.
...
llvm-svn: 21580
2005-04-26 23:07:08 +00:00
Reid Spencer
7f06064798
Uh, this isn't argpromotion.
...
llvm-svn: 21579
2005-04-26 23:05:17 +00:00
Reid Spencer
42906defb1
Add some debugging output so we can tell which calls are getting triggered
...
llvm-svn: 21578
2005-04-26 23:02:16 +00:00
Reid Spencer
47a20efcb0
No, seriously folks, memcpy really does return void.
...
llvm-svn: 21575
2005-04-26 22:49:48 +00:00
Reid Spencer
270f03e49e
memcpy returns void!!!!!
...
llvm-svn: 21574
2005-04-26 22:46:23 +00:00
Chris Lattner
6b2ebc1531
don't let Reid build void*'s :)
...
llvm-svn: 21571
2005-04-26 20:03:33 +00:00
Reid Spencer
303c65cea6
Fix some bugs found by running on llvm-test:
...
* MemCpyOptimization can only be optimized if the 3rd and 4th arguments are
constants and we weren't checking for that.
* The result of llvm.memcpy (and llvm.memmove) is void* not sbyte*, put in
a cast.
llvm-svn: 21570
2005-04-26 19:55:57 +00:00
Reid Spencer
27afdaf88f
Changes From Review Feedback:
...
* Have the SimplifyLibCalls pass acquire the TargetData and pass it down to
the optimization classes so they can use it to make better choices for
the signatures of functions, etc.
* Rearrange the code a little so the utility functions are closer to their
usage and keep the core of the pass near the top of the files.
* Adjust the StrLen pass to get/use the correct prototype depending on the
TargetData::getIntPtrType() result. The result of strlen is size_t which
could be either uint or ulong depending on the platform.
* Clean up some coding nits (cast vs. dyn_cast, remove redundant items from
a switch, etc.)
* Implement the MemMoveOptimization as a twin of MemCpyOptimization (they
only differ in name).
llvm-svn: 21569
2005-04-26 19:13:17 +00:00
Chris Lattner
5dc0b9e938
Make interval partition print correctly, patch contributed by
...
Vladimir Prus!
llvm-svn: 21566
2005-04-26 14:48:28 +00:00
Chris Lattner
f6199ef63a
Fix the compile failures from last night.
...
llvm-svn: 21565
2005-04-26 14:40:41 +00:00
Duraid Madina
90bcae7fd2
constmul bugfix: multiply by 27611 was broken
...
llvm-svn: 21564
2005-04-26 09:42:50 +00:00
Duraid Madina
675a0b9769
clean up the code! (oops) lots more cleaning left, however.
...
llvm-svn: 21563
2005-04-26 08:43:47 +00:00
Reid Spencer
5590c48202
* Merge get_GVInitializer and getCharArrayLength into a single function
...
named getConstantStringLength. This is the common part of StrCpy and
StrLen optimizations and probably several others, yet to be written. It
performs all the validity checks for looking at constant arrays that are
supposed to be null-terminated strings and then computes the actual
length of the string.
* Implement the MemCpyOptimization class. This just turns memcpy of 1, 2, 4
and 8 byte data blocks that are properly aligned on those boundaries into
a load and a store. Much more could be done here but alignment
restrictions and lack of knowledge of the target instruction set prevent
use from doing significantly more. That will have to be delegated to the
code generators as they lower llvm.memcpy calls.
llvm-svn: 21562
2005-04-26 07:45:18 +00:00
Duraid Madina
ee826ec8f6
* Add code to reduce multiplies by constant integers to shifts, adds and
...
subtracts. This is a very rough and nasty implementation of Lefevre's
"pattern finding" algorithm. With a few small changes though, it should
end up beating most other methods in common use, regardless of the size
of the constant (currently, it's often one or two shifts worse)
TODO: rewrite it so it's not hideously ugly (this is a translation from
perl, which doesn't help ;)
bypass most of it for multiplies by 2^n+1
(eventually) teach it that some combinations of shift+add are
cheaper than others (e.g. shladd on ia64, scaled adds on alpha)
get it to try multiple booth encodings in search of the cheapest
routine
make it work for negative constants
This is hacked up as a DAG->DAG transform, so once I clean it up I hope
it'll be pulled out of here and put somewhere else. The only thing backends
should really have to worry about for now is where to draw the line
between using this code vs. going ahead and doing an integer multiply
anyway.
llvm-svn: 21560
2005-04-26 07:23:02 +00:00
Reid Spencer
584e662d19
* Implement StrLenOptimization
...
* Factor out commonalities between StrLenOptimization and StrCatOptimization
* Make sure that signatures return sbyte* not void*
llvm-svn: 21559
2005-04-26 05:24:00 +00:00
Reid Spencer
6a1c238029
Incorporate feedback from Chris:
...
* Change signatures of OptimizeCall and ValidateCalledFunction so they are
non-const, allowing the optimization object to be modified. This is in
support of caching things used across multiple calls.
* Provide two functions for constructing and caching function types
* Modify the StrCatOptimization to cache Function objects for strlen and
llvm.memcpy so it doesn't regenerate them on each call site. Make sure
these are invalidated each time we start the pass.
* Handle both a GEP Instruction and a GEP ConstantExpr
* Add additional checks to make sure we really are dealing with an arary of
sbyte and that all the element initializers are ConstantInt or
ConstantExpr that reduce to ConstantInt.
* Make sure the GlobalVariable is constant!
* Don't use ConstantArray::getString as it can fail and it doesn't give us
the right thing. We must check for null bytes in the middle of the array.
* Use llvm.memcpy instead of memcpy so we can factor alignment into it.
* Don't use void* types in signatures, replace with sbyte* instead.
llvm-svn: 21555
2005-04-26 03:26:15 +00:00
Chris Lattner
15bcc5273b
Fold (X > -1) | (Y > -1) --> (X&Y > -1)
...
llvm-svn: 21552
2005-04-26 01:18:33 +00:00
Reid Spencer
5fcce35fa8
Changes due to code review and new implementation:
...
* Don't use std::string for the function names, const char* will suffice
* Allow each CallOptimizer to validate the function signature before
doing anything
* Repeatedly loop over the functions until an iteration produces
no more optimizations. This allows one optimization to insert a
call that is optimized by another optimization.
* Implement the ConstantArray portion of the StrCatOptimization
* Provide a template for the MemCpyOptimization
* Make ExitInMainOptimization split the block, not delete everything
after the return instruction.
(This covers revision 1.3 and 1.4, as the 1.3 comments were botched)
llvm-svn: 21548
2005-04-25 21:20:38 +00:00
Chris Lattner
d8ac4da793
implement some more logical compares with constants, so that:
...
int foo1(int x, int y) {
int t1 = x >= 0;
int t2 = y >= 0;
return t1 & t2;
}
int foo2(int x, int y) {
int t1 = x == -1;
int t2 = y == -1;
return t1 & t2;
}
produces:
_foo1:
or r2, r4, r3
srwi r2, r2, 31
xori r3, r2, 1
blr
_foo2:
and r2, r4, r3
addic r2, r2, 1
li r2, 0
addze r3, r2
blr
instead of:
_foo1:
srwi r2, r4, 31
xori r2, r2, 1
srwi r3, r3, 31
xori r3, r3, 1
and r3, r2, r3
blr
_foo2:
addic r2, r4, 1
li r2, 0
addze r2, r2
addic r3, r3, 1
li r3, 0
addze r3, r3
and r3, r2, r3
blr
llvm-svn: 21547
2005-04-25 21:20:28 +00:00
Reid Spencer
9b66533e40
Lots of changes based on review and new functionality:
...
* Use a
llvm-svn: 21546
2005-04-25 21:11:48 +00:00
Chris Lattner
7931b75a81
Codegen x < 0 | y < 0 as (x|y) < 0. This allows us to compile this to:
...
_foo:
or r2, r4, r3
srwi r3, r2, 31
blr
instead of:
_foo:
srwi r2, r4, 31
srwi r3, r3, 31
or r3, r2, r3
blr
llvm-svn: 21544
2005-04-25 21:03:25 +00:00
Chris Lattner
3aff97254e
Make dominates(A,B) work with post dominators. Patch contributed by
...
Naveen Neelakantam, thanks!
llvm-svn: 21543
2005-04-25 20:50:33 +00:00
Chris Lattner
3f22e5ba5d
implement getelementptr.ll:test10
...
llvm-svn: 21541
2005-04-25 20:17:30 +00:00
Chris Lattner
bab9c90db4
Correctly handle global-argument aliases induced in main
...
llvm-svn: 21537
2005-04-25 19:16:31 +00:00
Chris Lattner
e39652d21c
Don't mess up SCC traversal when a node has null edges out of it.
...
llvm-svn: 21536
2005-04-25 19:16:17 +00:00
Reid Spencer
4b4864684a
Post-Review Cleanup:
...
* Fix comments at top of file
* Change algorithm for running the call optimizations from n*n to something
closer to n.
* Use a hash_map to store and lookup the optimizations since there will
eventually (or potentially) be a large number of them. This gets lookup
based on the name of the function to O(1). Each CallOptimizer now has a
std::string member named func_name that tracks the name of the function
that it applies to. It is this string that is entered into the hash_map
for fast comparison against the function names encountered in the module.
* Cleanup some style issues pertaining to iterator invalidation
* Don't pass the Function pointer to the OptimizeCall function because if
the optimization needs it, it can get it from the CallInst passed in.
* Add the skeleton for a new CallOptimizer, StrCatOptimizer which will
eventually replace strcat's of constant strings with direct copies.
llvm-svn: 21526
2005-04-25 03:59:26 +00:00
Reid Spencer
e952b16f37
Shut GCC 4.0 up about classes that have virtual functions but a non-virtual
...
destructor. Just add the do-nothing virtual destructor.
llvm-svn: 21524
2005-04-25 02:55:55 +00:00
Reid Spencer
95a0d8af78
A new pass to provide specific optimizations for certain well-known library
...
calls. The pass visits all external functions in the module and determines
if such function calls can be optimized. The optimizations are specific to
the library calls involved. This initial version only optimizes calls to
exit(3) when they occur in main(): it changes them to ret instructions.
llvm-svn: 21522
2005-04-25 02:53:12 +00:00
Reid Spencer
27134f31f2
Older compilers won't like the inline virtual destructor in the header file
...
so we put the destructor in Pass.cpp and make it non-inline.
llvm-svn: 21520
2005-04-25 01:01:35 +00:00
Reid Spencer
c206223e65
Shut GCC 4.0 up about classes with virtual functions but no virtual
...
destructor.
llvm-svn: 21510
2005-04-24 22:27:20 +00:00
Chris Lattner
e78ae0e1b1
Eliminate cases where we could << by 64, which is undefined in C.
...
llvm-svn: 21500
2005-04-24 17:46:05 +00:00
Chris Lattner
5fdcc49858
Implement xor.ll:test21: select (not C), A, B -> select C, B, A
...
llvm-svn: 21495
2005-04-24 07:30:14 +00:00
Chris Lattner
a9f3e89328
Allow these methods to take a generic Value* to simplify clients. Use
...
const_cast instead of c casts.
llvm-svn: 21493
2005-04-24 07:28:37 +00:00
Chris Lattner
26c5e79151
Use getPrimitiveSizeInBits() instead of getPrimitiveSize()*8
...
Completely rework the 'setcc (cast x to larger), y' code. This code has
the advantage of implementing setcc.ll:test19 (being more general than
the previous code) and being correct in all cases.
This allows us to unxfail 2004-11-27-SetCCForCastLargerAndConstant.ll,
and close PR454.
llvm-svn: 21491
2005-04-24 06:59:08 +00:00
Chris Lattner
dfae677997
Fix a bug in my previous checkin
...
llvm-svn: 21485
2005-04-23 22:01:39 +00:00
Chris Lattner
d10f1f55f9
Add a method, remove last use of Type.def
...
llvm-svn: 21483
2005-04-23 22:00:09 +00:00
Jeff Cohen
6c42217055
Eliminate tabs and trailing spaces
...
llvm-svn: 21480
2005-04-23 21:38:35 +00:00
Chris Lattner
0bc1588c47
Propagate eq sets through the bu graphs to the cbu and eq graphs, fixing
...
a crash of the sfv on 188.ammp
llvm-svn: 21478
2005-04-23 21:11:05 +00:00
Chris Lattner
42869e162e
Generalize the setcc -> PHI and Select folding optimizations to work with
...
any constant RHS, not just a constant integer RHS. This implements
select.ll:test17
llvm-svn: 21470
2005-04-23 15:31:55 +00:00
Misha Brukman
fdc5e95a10
* Order #includes as per style guide
...
* Combine multiple ``std::cerr <<'' statements into one for simplicity
llvm-svn: 21458
2005-04-22 19:13:22 +00:00
Misha Brukman
b3e2f08638
Convert tabs to spaces
...
llvm-svn: 21457
2005-04-22 18:06:01 +00:00
Alkis Evlogimenos
9594d0b861
Silence gcc-4.0.0 warnings.
...
llvm-svn: 21453
2005-04-22 17:56:01 +00:00
Misha Brukman
66d3c6e020
Convert tabs to spaces
...
llvm-svn: 21452
2005-04-22 17:54:37 +00:00
Reid Spencer
868f3fb2e0
Implement the --enable-targets= feature of the configure script. The make
...
variable TARGETS_TO_BUILD is used to determine which targets in lib/Target
are built and which libraries are linked into llc. This effectively
implements the feature. One item remains: disabling targets in the dejagnu
test suite.
llvm-svn: 21450
2005-04-22 17:20:11 +00:00
Andrew Lenharth
25a03c00c7
keep track of max depth stats
...
llvm-svn: 21446
2005-04-22 13:35:18 +00:00
Tanya Lattner
3f4d35ca74
Updated dependence analyzer. Fixed numerous bugs. Same stage scheduling, etc.
...
llvm-svn: 21444
2005-04-22 06:32:48 +00:00
Chris Lattner
c638ca05a0
Malloc/Free have mod/ref effects. Do not allow CSE of function calls that
...
call malloc/free. This fixes PR555.
llvm-svn: 21443
2005-04-22 05:36:59 +00:00
Misha Brukman
3ef1d71bfa
Convert tabs to spaces
...
llvm-svn: 21440
2005-04-22 04:08:30 +00:00
Misha Brukman
a9a1982a44
Convert tabs to spaces
...
llvm-svn: 21439
2005-04-22 04:01:18 +00:00
Misha Brukman
53e199440e
Remove trailing whitespace
...
llvm-svn: 21427
2005-04-21 23:48:37 +00:00
Misha Brukman
bf3f6181fd
* Remove trailing whitespace
...
* Convert tabs to spaces
llvm-svn: 21426
2005-04-21 23:38:14 +00:00
Misha Brukman
1fef885677
Remove trailing whitespace
...
llvm-svn: 21425
2005-04-21 23:30:14 +00:00
Misha Brukman
1fdf39f2ea
Remove trailing whitespace
...
llvm-svn: 21424
2005-04-21 23:13:11 +00:00
Misha Brukman
933cdaf254
Remove trailing whitespace
...
llvm-svn: 21422
2005-04-21 22:55:34 +00:00
Misha Brukman
dda9dce10f
* Remove trailing whitespace
...
* Convert tabs to spaces
llvm-svn: 21421
2005-04-21 22:43:08 +00:00
Misha Brukman
774e55c446
Remove trailing whitespace
...
llvm-svn: 21420
2005-04-21 22:36:52 +00:00
Misha Brukman
aec3b563b0
* Remove trailing whitespace
...
* Convert tabs to spaces
llvm-svn: 21418
2005-04-21 21:48:46 +00:00
Misha Brukman
e69deb7eec
Remove trailing whitespace
...
llvm-svn: 21417
2005-04-21 21:44:41 +00:00
Misha Brukman
122d682689
Remove trailing whitespace
...
llvm-svn: 21416
2005-04-21 21:13:18 +00:00
Misha Brukman
564c9b6580
* Remove trailing whitespace
...
* Convert tabs to spaces
llvm-svn: 21415
2005-04-21 21:10:11 +00:00
Chris Lattner
208da25af0
Match another form of eqv
...
llvm-svn: 21413
2005-04-21 21:09:11 +00:00
Chris Lattner
8d813a7d51
Handle stores of global address as stores of immediates. Instead of:
...
test1:
movl $N, %eax
movl %eax, G
ret
emit:
test1:
movl $N, G
ret
llvm-svn: 21407
2005-04-21 19:11:03 +00:00
Chris Lattner
706775467b
Handle (store &GV -> mem) as a store immediate. This often occurs for
...
printf format strings and other stuff. Instead of generating this:
movl $l1__2E_str_1, %eax
movl %eax, (%esp)
we now emit:
movl $l1__2E_str_1, (%esp)
llvm-svn: 21406
2005-04-21 19:03:24 +00:00
Reid Spencer
19f70e2fa2
Use the actual uid/gid for defaulting the fields in the archive.
...
llvm-svn: 21405
2005-04-21 17:49:57 +00:00
Chris Lattner
357bbf90af
Fix a bug where we would not promote calls to invokes if they occured in
...
the same block as the setjmp. Thanks to Greg Pettyjohn for noticing this!
llvm-svn: 21403
2005-04-21 16:46:46 +00:00
Reid Spencer
970739e48a
Eliminate calls to system dependent function getuid by using
...
the newly implemented sys::Process::GetCurrentUserId function. Replace
similarly for getgid.
llvm-svn: 21402
2005-04-21 16:15:19 +00:00
Reid Spencer
044ec874d5
Provide an implementation of the GetCurrentUserId and GetCurrentGroupId
...
methods that were recently added to the interface.
llvm-svn: 21401
2005-04-21 16:12:57 +00:00
Chris Lattner
9d2c6a3981
add support for taking and resolving the address of free.
...
llvm-svn: 21396
2005-04-21 16:09:43 +00:00
Chris Lattner
2f96b346b4
Improve doxygen, from part of Evan's patch that didn't apply.
...
llvm-svn: 21394
2005-04-21 16:06:03 +00:00
Chris Lattner
472c891d23
Improve doxygen documentation, patch contributed by Evan Jones!
...
llvm-svn: 21393
2005-04-21 16:04:49 +00:00
Chris Lattner
87fbc1c554
Improve and elimination. On PPC, for:
...
bool %test(int %X) {
%Y = and int %X, 8
%Z = setne int %Y, 0
ret bool %Z
}
we now generate this:
rlwinm r2, r3, 0, 28, 28
srwi r3, r2, 3
instead of this:
rlwinm r2, r3, 0, 28, 28
srwi r2, r2, 3
rlwinm r3, r2, 0, 31, 31
I'll leave it to Nate to get it down to one instruction. :)
---------------------------------------------------------------------
llvm-svn: 21391
2005-04-21 06:28:15 +00:00
Chris Lattner
d0a2fda2c6
Fold (x & 8) != 0 and (x & 8) == 8 into (x & 8) >> 3.
...
This turns this PPC code:
rlwinm r2, r3, 0, 28, 28
cmpwi cr7, r2, 8
mfcr r2
rlwinm r3, r2, 31, 31, 31
into this:
rlwinm r2, r3, 0, 28, 28
srwi r2, r2, 3
rlwinm r3, r2, 0, 31, 31
Next up, nuking the extra and.
llvm-svn: 21390
2005-04-21 06:12:41 +00:00
Chris Lattner
5ad1e1ebec
Instcombine this:
...
%shortcirc_val = select bool %tmp.1, bool true, bool %tmp.4 ; <bool> [#uses=1]
%tmp.6 = cast bool %shortcirc_val to int ; <int> [#uses=1]
into this:
%shortcirc_val = or bool %tmp.1, %tmp.4 ; <bool> [#uses=1]
%tmp.6 = cast bool %shortcirc_val to int ; <int> [#uses=1]
not this:
%tmp.4.cast = cast bool %tmp.4 to int ; <int> [#uses=1]
%tmp.6 = select bool %tmp.1, int 1, int %tmp.4.cast ; <int> [#uses=1]
llvm-svn: 21389
2005-04-21 05:43:13 +00:00
Chris Lattner
6ce1b109aa
Teach simplifycfg that setcc is cheap and non-trapping, so that it can
...
convert this:
%tmp.1 = seteq int %i, 0 ; <bool> [#uses=1]
br bool %tmp.1, label %shortcirc_done, label %shortcirc_next
shortcirc_next: ; preds = %entry
%tmp.4 = seteq int %j, 0 ; <bool> [#uses=1]
br label %shortcirc_done
shortcirc_done: ; preds = %shortcirc_next, %entry
%shortcirc_val = phi bool [ %tmp.4, %shortcirc_next ], [ true, %entry ] ; <bool> [#uses=1]
to this:
%tmp.1 = seteq int %i, 0 ; <bool> [#uses=1]
%tmp.4 = seteq int %j, 0 ; <bool> [#uses=1]
%shortcirc_val = select bool %tmp.1, bool true, bool %tmp.4 ; <bool> [#uses=1]
... which is later simplified by instcombine into an or.
llvm-svn: 21388
2005-04-21 05:31:13 +00:00
Reid Spencer
4478133ab0
For Bug 543:
...
Standardize the error messages to be in "path: what failed: why" format.
Also attempt to use the correct errno to ThrowErrno in situations where
the errno value is erased by subsequent system calls.
llvm-svn: 21385
2005-04-21 02:50:10 +00:00
Reid Spencer
c3b52b74cd
For Bug 543:
...
Allow the ThrowErrno function to optionally accept an error number
parameter so that callers can specify the error number to be used.
llvm-svn: 21384
2005-04-21 02:30:32 +00:00
Misha Brukman
e096a50cb7
Remove trailing whitespace, patch by Markus Oberhumer.
...
llvm-svn: 21379
2005-04-20 16:05:03 +00:00
Misha Brukman
7f08d0bc03
Add FIXME by Markus Oberhumer from bug 545: not checking for "." in $PATH may
...
result in returning executable files that won't be runnable.
llvm-svn: 21378
2005-04-20 15:42:11 +00:00
Misha Brukman
11854af05f
Do not mark directories as `executable', we only want program files
...
Patch by Markus Oberhumer.
llvm-svn: 21377
2005-04-20 15:33:22 +00:00
Misha Brukman
4113ed635d
Ignore dangling symlinks in getDirectoryContents()
...
Thanks to Markus Oberhumer for the patch!
llvm-svn: 21370
2005-04-20 04:04:07 +00:00
Misha Brukman
1e88051ee8
Initialize fields mode, uid, and gid.
...
Patch by Markus Oberhumer. Thanks!
llvm-svn: 21369
2005-04-20 03:55:35 +00:00
Misha Brukman
e69c186935
Align comments together for consistency
...
llvm-svn: 21368
2005-04-20 03:52:59 +00:00
Chris Lattner
145f1ec0a4
Wrap some long lines.
...
Make IPSCCP strip off dead constant exprs that are using functions, making
them appear as though their address is taken. This allows us to propagate
some more pool descriptors, lowering the overhead of pool alloc.
llvm-svn: 21363
2005-04-19 19:16:19 +00:00