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Commit Graph

61 Commits

Author SHA1 Message Date
Victor Hernandez
fe5347d782 Enhance transform passes so that they apply the same tranforms to malloc calls as to MallocInst.
Reviewed by Dan Gohman.

llvm-svn: 82300
2009-09-18 22:35:49 +00:00
Chris Lattner
3ac0c58031 In C++, code is not allowed to call main. In C it is, this
simplifylibcalls optimization is thus valid for C++ but not C.
It's not important enough to worry about for C++ apps, so just
remove it.

rdar://7191924

llvm-svn: 80887
2009-09-03 05:19:59 +00:00
Chris Lattner
5f54c5bd1c eliminate VISIBILITY_HIDDEN from Transforms/Scalar. PR4861
llvm-svn: 80766
2009-09-02 06:11:42 +00:00
Dan Gohman
807652ac3a Fix SimplifyLibcalls and ValueTracking to check mayBeOverridden
before performing optimizations based on constant string values.

llvm-svn: 79384
2009-08-19 00:11:12 +00:00
Dan Gohman
3137ac23bc Make TargetData optional in SimplifyLibCalls.
llvm-svn: 79298
2009-08-18 00:48:13 +00:00
Owen Anderson
9df206d02d Push LLVMContexts through the IntegerType APIs.
llvm-svn: 78948
2009-08-13 21:58:54 +00:00
Owen Anderson
1dc40e205b Move a few more APIs back to 2.5 forms. The only remaining ones left to change back are
metadata related, which I'm waiting on to avoid conflicting with Devang.

llvm-svn: 77721
2009-07-31 20:28:14 +00:00
Owen Anderson
881d928f9b Move types back to the 2.5 API.
llvm-svn: 77516
2009-07-29 22:17:13 +00:00
Daniel Dunbar
89cb72a6bc Fix PR4645 which was fallout from the fix for PR4641.
- Call RAUW to delete all instructions (this is a patch from Nick Lewycky).

llvm-svn: 77512
2009-07-29 22:00:43 +00:00
Owen Anderson
0ce2151b36 Move ConstantExpr to 2.5 API.
llvm-svn: 77494
2009-07-29 18:55:55 +00:00
Nick Lewycky
e0524c1795 Bulk erasing instructions without RAUWing them is unsafe. Instead, break them
into a new BB that has no predecessors.

llvm-svn: 77433
2009-07-29 05:17:50 +00:00
Owen Anderson
aa8c94b051 Change ConstantArray to 2.5 API.
llvm-svn: 77347
2009-07-28 18:32:17 +00:00
Owen Anderson
256c2c250e Move ConstantFP construction back to the 2.5-ish API.
llvm-svn: 77247
2009-07-27 20:59:43 +00:00
Daniel Dunbar
64abfd0337 Remove Value::getNameLen
llvm-svn: 77148
2009-07-26 08:34:35 +00:00
Daniel Dunbar
75a66c519b Eliminate some uses of DOUT, cerr, and getNameStart().
llvm-svn: 77145
2009-07-26 07:49:05 +00:00
Daniel Dunbar
038a7f0d35 Remove Value::{isName, getNameRef}.
Also, change MDString to use a StringRef.

llvm-svn: 77098
2009-07-25 23:55:21 +00:00
Owen Anderson
cc33e89571 Revert the ConstantInt constructors back to their 2.5 forms where possible, thanks to contexts-on-types. More to come.
llvm-svn: 77011
2009-07-24 23:12:02 +00:00
Daniel Dunbar
b5adc13728 Convert StringMap to using StringRef for its APIs.
- Yay for '-'s and simplifications!

 - I kept StringMap::GetOrCreateValue for compatibility purposes, this can
   eventually go away. Likewise the StringMapEntry Create functions still follow
   the old style.

 - NIFC.

llvm-svn: 76888
2009-07-23 18:17:34 +00:00
Owen Anderson
cc287b28c9 Get rid of the Pass+Context magic.
llvm-svn: 76702
2009-07-22 00:24:57 +00:00
Eli Friedman
7b1597133d Fix simplifylibcalls memset recognition to work on 64-bit platforms
where int is 32 bits.

llvm-svn: 76293
2009-07-18 08:34:51 +00:00
Owen Anderson
21d2d69727 Move the ConstantInt uniquing table into LLVMContextImpl. This exposed a number of issues in
our current context-passing stuff, which is also fixed here

llvm-svn: 76089
2009-07-16 18:04:31 +00:00
Owen Anderson
1e5155161a Move more functionality over to LLVMContext.
llvm-svn: 75497
2009-07-13 20:58:05 +00:00
Owen Anderson
9331034838 Push LLVMContext _back_ through IRBuilder.
llvm-svn: 75040
2009-07-08 20:50:47 +00:00
Owen Anderson
332aae685b Switch GlobalVariable ctors to a sane API, where *either* a context or a module is required.
llvm-svn: 75025
2009-07-08 19:03:57 +00:00
Owen Anderson
7a1f69e433 Push LLVMContext through GlobalVariables and IRBuilder.
llvm-svn: 74985
2009-07-08 01:26:06 +00:00
Owen Anderson
a8ce571a68 Even more passes being LLVMContext'd.
llvm-svn: 74781
2009-07-03 19:42:02 +00:00
Chris Lattner
3a683c551f part of PR4405: disable a contentious optimization for
strcmp -> memcmp when the lengths of the strings are unknown.

Patch by Nick Lewycky!

llvm-svn: 73751
2009-06-19 04:17:36 +00:00
Anton Korobeynikov
fed9dcc88c Revert IRBuilder CC propagation. Fix SimplifyLibCalls instead.
llvm-svn: 73715
2009-06-18 20:05:31 +00:00
Dan Gohman
5f6f8101d5 Split the Add, Sub, and Mul instruction opcodes into separate
integer and floating-point opcodes, introducing
FAdd, FSub, and FMul.

For now, the AsmParser, BitcodeReader, and IRBuilder all preserve
backwards compatability, and the Core LLVM APIs preserve backwards
compatibility for IR producers. Most front-ends won't need to change
immediately.

This implements the first step of the plan outlined here:
http://nondot.org/sabre/LLVMNotes/IntegerOverflow.txt

llvm-svn: 72897
2009-06-04 22:49:04 +00:00
Chris Lattner
8ac63163fe fix PR4284, a bug in simplifylibcalls handling memcmp. Patch by
Benjamin Kramer!

llvm-svn: 72625
2009-05-30 18:43:04 +00:00
Chris Lattner
927ebd34e2 Fix PR4206 - crash in simplify lib calls
llvm-svn: 71644
2009-05-13 06:26:11 +00:00
Chris Lattner
8ad1efdfe1 "There was a typo in my previous patch which leads to miscompilation of
strncat :(

strncat(foo, "bar", 99)
would be optimized to
memcpy(foo+strlen(foo), "bar", 100, 1)
instead of
memcpy(foo+strlen(foo), "bar", 4, 1)"

Patch by Benjamin Kramer!

llvm-svn: 68905
2009-04-12 18:22:33 +00:00
Chris Lattner
f03202e76d add some optimizations for strncpy/strncat and factor some
code.  Patch by Benjamin Kramer!

llvm-svn: 68885
2009-04-12 05:06:39 +00:00
Ed Schouten
ff25f858fd Let the strcat optimizer return the pointer to the start of the buffer,
instead of the place where it started to perform the string copy.

- PR3661
- Patch by Benjamin Kramer!

llvm-svn: 68443
2009-04-06 13:06:48 +00:00
Bill Wendling
5499163a0a Oops...I committed too much.
llvm-svn: 66867
2009-03-13 04:39:26 +00:00
Bill Wendling
02a239b837 Temporarily XFAIL this test.
llvm-svn: 66866
2009-03-13 04:37:11 +00:00
Nick Lewycky
9178be6059 Update the list of function annotations for nocapture. All of these came up
when I was looking at functions used by python.

Highlights include, better largefile support (64-bit file sizes on 32-bit
systems), fputs string is nocapture, popen/pclose added (popen being noalias
return), modf and frexp and friends. Also added some missing 'break' statements
and combined identical sections.

llvm-svn: 64615
2009-02-15 22:47:25 +00:00
Nick Lewycky
0a8e13fd8b Mark strto* as readonly when the endptr is null.
llvm-svn: 64460
2009-02-13 17:08:33 +00:00
Nick Lewycky
7ec551cfad On strtod and friends, mark 'endptr' nocapture in the function prototype, and
mark the first argument nocapture if endptr=NULL for each particular call.

llvm-svn: 64453
2009-02-13 15:31:46 +00:00
Nick Lewycky
1a40fb2473 Don't mark all args to strtod and friends as nocapture.
llvm-svn: 64352
2009-02-12 03:18:34 +00:00
Nick Lewycky
39fcb513ca Fix copy and pasted typos that prevented strtok_r, realloc, getenv, ungetc,
putc, puts, perror, vscanf and vsscanf from getting annotations.

Add annotations for eight printf functions, memalign, pread and pwrite.

On Linux, llvm-gcc sometimes renames strdup, getc, putc, strtok_r, scanf and
sscanf. Match the alternate function names.

Fix a crash annotating opendir.

Don't mark fsetpos's second parameter as nocapture. It's supposed to be
captured.

Do mark fopen's path and mode strings as nocapture. Mark ferror as readonly,
but not fileno which may set errno.

llvm-svn: 62456
2009-01-18 04:34:36 +00:00
Nick Lewycky
5616407df7 Move the libcall annotating part from doFinalization to doInitialization.
Finalization occurs after all the FunctionPasses in the group have run, which
is clearly not what we want.

This also means that we have to make sure that we apply the right param 
attributes when creating a new function.

Also, add a missed optimization: strdup and strndup. NoCapture and 
NoAlias return!

llvm-svn: 61658
2009-01-05 00:07:50 +00:00
Nick Lewycky
6685977938 Run a post-pass that marks known function declarations by name.
llvm-svn: 61632
2009-01-04 20:27:34 +00:00
Nick Lewycky
8fd2389593 Turn strcmp into memcmp, such as strcmp(P, "x") --> memcmp(P, "x", 2).
llvm-svn: 61297
2008-12-21 00:19:21 +00:00
Eli Friedman
2bc3921ce2 Optimize memmove and memset into the LLVM builtins. Note that these
only show up in code from front-ends besides llvm-gcc, like clang.

llvm-svn: 60287
2008-11-30 08:32:11 +00:00
Chris Lattner
08bdf9dfab reapply Sanjiv's patch to genericize memcpy/memset/memmove to take an
arbitrary integer width for the count.

llvm-svn: 59823
2008-11-21 16:42:48 +00:00
Bill Wendling
4c5afef830 Revert r59802. It was breaking the build of llvm-gcc:
g++ -m32 -c -g -DIN_GCC -W -Wall -Wwrite-strings -Wmissing-format-attribute -fno-common -mdynamic-no-pic -DHAVE_CONFIG_H -Wno-unused -DTARGET_NAME=\"i386-apple-darwin9.5.0\" -I. -I. -I../../llvm-gcc.src/gcc -I../../llvm-gcc.src/gcc/. -I../../llvm-gcc.src/gcc/../include -I./../intl -I../../llvm-gcc.src/gcc/../libcpp/include  -I../../llvm-gcc.src/gcc/../libdecnumber -I../libdecnumber -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.obj/include -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/include -DENABLE_LLVM -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.obj/../llvm.src/include  -D_DEBUG  -D_GNU_SOURCE -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS   -I. -I. -I../../llvm-gcc.src/gcc -I../../llvm-gcc.src/gcc/. -I../../llvm-gcc.src/gcc/../include -I./../intl -I../../llvm-gcc.src/gcc/../libcpp/include  -I../../llvm-gcc.src/gcc/../libdecnumber -I../libdecnumber -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.obj/include -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/include ../../llvm-gcc.src/gcc/llvm-types.cpp -o llvm-types.o
../../llvm-gcc.src/gcc/llvm-convert.cpp: In member function 'void TreeToLLVM::EmitMemCpy(llvm::Value*, llvm::Value*, llvm::Value*, unsigned int)':
../../llvm-gcc.src/gcc/llvm-convert.cpp:1496: error: 'memcpy_i32' is not a member of 'llvm::Intrinsic'
../../llvm-gcc.src/gcc/llvm-convert.cpp:1496: error: 'memcpy_i64' is not a member of 'llvm::Intrinsic'
../../llvm-gcc.src/gcc/llvm-convert.cpp: In member function 'void TreeToLLVM::EmitMemMove(llvm::Value*, llvm::Value*, llvm::Value*, unsigned int)':
../../llvm-gcc.src/gcc/llvm-convert.cpp:1512: error: 'memmove_i32' is not a member of 'llvm::Intrinsic'
../../llvm-gcc.src/gcc/llvm-convert.cpp:1512: error: 'memmove_i64' is not a member of 'llvm::Intrinsic'
../../llvm-gcc.src/gcc/llvm-convert.cpp: In member function 'void TreeToLLVM::EmitMemSet(llvm::Value*, llvm::Value*, llvm::Value*, unsigned int)':
../../llvm-gcc.src/gcc/llvm-convert.cpp:1528: error: 'memset_i32' is not a member of 'llvm::Intrinsic'
../../llvm-gcc.src/gcc/llvm-convert.cpp:1528: error: 'memset_i64' is not a member of 'llvm::Intrinsic'
make[3]: *** [llvm-convert.o] Error 1
make[3]: *** Waiting for unfinished jobs....
rm fsf-funding.pod gcov.pod gfdl.pod cpp.pod gpl.pod gcc.pod
make[2]: *** [all-stage1-gcc] Error 2
make[1]: *** [stage1-bubble] Error 2
make: *** [all] Error 2

llvm-svn: 59809
2008-11-21 09:09:41 +00:00
Sanjiv Gupta
89a7e67578 Make mem[cpy,move,set] intrinsics overloaded.
llvm-svn: 59802
2008-11-21 07:49:09 +00:00
Dale Johannesen
bbd799c544 Add intrinsic forms of pow and exp2. The non-intrinsic
forms remain to handle older IR files, but will go away soon.

llvm-svn: 55781
2008-09-04 18:30:46 +00:00
Dan Gohman
e1f9be27bc Tidy up several unbeseeming casts from pointer to intptr_t.
llvm-svn: 55779
2008-09-04 17:05:41 +00:00