Eric Christopher
80bf1d5278
Add more optimizations for object size checking, enable handling of
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object size intrinsic and verify return type is correct. Collect various
code in one place.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89523 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-21 01:01:30 +00:00
Daniel Dunbar
f7751c134a
Revert "Add some rough optimizations for checking routines.", it buildeth not.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89482 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-20 20:17:30 +00:00
Eric Christopher
3bcaa8ac95
Add some rough optimizations for checking routines.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89479 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-20 19:57:37 +00:00
Duncan Sands
f63c41033a
CreateIntCast takes an "isSigned" parameter. Pass "true" for it, rather than
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a name.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88908 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-16 12:32:28 +00:00
Chris Lattner
74965f2279
fix PR5104: when printing a single character, return the result of
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putchar in case there is an error.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86515 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-09 04:57:04 +00:00
Benjamin Kramer
992a637297
Teach SimplifyLibCalls to fold memcmp calls with constant arguments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86141 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05 17:44:22 +00:00
Eric Christopher
7b5e61707a
Add objectsize intrinsic and hook it up through codegen. Doesn't
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do anything than return "I don't know" at the moment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85189 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 00:52:25 +00:00
Eric Christopher
37c8b86d43
80-column and whitespace fixes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83489 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-07 21:14:25 +00:00
Duncan Sands
ac53a0b272
Introduce and use convenience methods for getting pointer types
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where the element is of a basic builtin type. For example, to get
an i8* use getInt8PtrTy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83379 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-06 15:40:36 +00:00
Chris Lattner
cf0fe8d813
strength reduce a ton of type equality tests to check the typeid (Through
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the new predicates I added) instead of going through a context and doing a
pointer comparison. Besides being cheaper, this allows a smart compiler
to turn the if sequence into a switch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83297 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-05 05:54:46 +00:00
Dan Gohman
76926b6789
Fix SimplifyLibCalls to transfer attributes from callees rather than
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calls, since direct calls don't always reflect the attributes of their
callees.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82867 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-26 18:10:13 +00:00
Dan Gohman
a23643d5b7
Rename ConstantFP's getInf to getInfinity.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82823 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-25 23:40:21 +00:00
Dan Gohman
79cb840136
Transform pow(x, 0.5) to (x == -inf ? inf : fabs(sqrt(x))), which is
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typically faster then doing a general pow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82819 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-25 23:10:17 +00:00
Victor Hernandez
83d63919bd
Enhance transform passes so that they apply the same tranforms to malloc calls as to MallocInst.
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Reviewed by Dan Gohman.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82300 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-18 22:35:49 +00:00
Chris Lattner
e9f9a7e10e
In C++, code is not allowed to call main. In C it is, this
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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
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80887 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-03 05:19:59 +00:00
Chris Lattner
3e8b6631e6
eliminate VISIBILITY_HIDDEN from Transforms/Scalar. PR4861
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80766 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-02 06:11:42 +00:00
Dan Gohman
107f41fad5
Fix SimplifyLibcalls and ValueTracking to check mayBeOverridden
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before performing optimizations based on constant string values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79384 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-19 00:11:12 +00:00
Dan Gohman
f14d919742
Make TargetData optional in SimplifyLibCalls.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79298 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-18 00:48:13 +00:00
Owen Anderson
1d0be15f89
Push LLVMContexts through the IntegerType APIs.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78948 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-13 21:58:54 +00:00
Owen Anderson
a7235ea724
Move a few more APIs back to 2.5 forms. The only remaining ones left to change back are
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metadata related, which I'm waiting on to avoid conflicting with Devang.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77721 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31 20:28:14 +00:00
Owen Anderson
debcb01b0f
Move types back to the 2.5 API.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77516 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29 22:17:13 +00:00
Daniel Dunbar
473955f439
Fix PR4645 which was fallout from the fix for PR4641.
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- Call RAUW to delete all instructions (this is a patch from Nick Lewycky).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77512 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29 22:00:43 +00:00
Owen Anderson
baf3c40440
Move ConstantExpr to 2.5 API.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77494 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29 18:55:55 +00:00
Nick Lewycky
0efa921736
Bulk erasing instructions without RAUWing them is unsafe. Instead, break them
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into a new BB that has no predecessors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77433 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29 05:17:50 +00:00
Owen Anderson
1fd7096407
Change ConstantArray to 2.5 API.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77347 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-28 18:32:17 +00:00
Owen Anderson
6f83c9c6ef
Move ConstantFP construction back to the 2.5-ish API.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77247 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-27 20:59:43 +00:00
Daniel Dunbar
f0443c1eb4
Remove Value::getNameLen
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77148 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-26 08:34:35 +00:00
Daniel Dunbar
93b67e40de
Eliminate some uses of DOUT, cerr, and getNameStart().
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77145 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-26 07:49:05 +00:00
Daniel Dunbar
03d7651c36
Remove Value::{isName, getNameRef}.
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Also, change MDString to use a StringRef.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77098 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-25 23:55:21 +00:00
Owen Anderson
eed707b1e6
Revert the ConstantInt constructors back to their 2.5 forms where possible, thanks to contexts-on-types. More to come.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77011 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-24 23:12:02 +00:00
Daniel Dunbar
6316fbcb04
Convert StringMap to using StringRef for its APIs.
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- 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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76888 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-23 18:17:34 +00:00
Owen Anderson
e922c02019
Get rid of the Pass+Context magic.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76702 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-22 00:24:57 +00:00
Eli Friedman
62bb413435
Fix simplifylibcalls memset recognition to work on 64-bit platforms
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where int is 32 bits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76293 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-18 08:34:51 +00:00
Owen Anderson
001dbfebcb
Move the ConstantInt uniquing table into LLVMContextImpl. This exposed a number of issues in
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our current context-passing stuff, which is also fixed here
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76089 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-16 18:04:31 +00:00
Owen Anderson
73c6b7127a
Move more functionality over to LLVMContext.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75497 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-13 20:58:05 +00:00
Owen Anderson
d1fbd14294
Push LLVMContext _back_ through IRBuilder.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75040 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-08 20:50:47 +00:00
Owen Anderson
e9b11b4313
Switch GlobalVariable ctors to a sane API, where *either* a context or a module is required.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75025 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-08 19:03:57 +00:00
Owen Anderson
3d29df3e8a
Push LLVMContext through GlobalVariables and IRBuilder.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74985 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-08 01:26:06 +00:00
Owen Anderson
fa5cbd6d0f
Even more passes being LLVMContext'd.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74781 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-03 19:42:02 +00:00
Chris Lattner
849832c0fb
part of PR4405: disable a contentious optimization for
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strcmp -> memcmp when the lengths of the strings are unknown.
Patch by Nick Lewycky!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73751 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-19 04:17:36 +00:00
Anton Korobeynikov
9547cdfa35
Revert IRBuilder CC propagation. Fix SimplifyLibCalls instead.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73715 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 20:05:31 +00:00
Dan Gohman
ae3a0be92e
Split the Add, Sub, and Mul instruction opcodes into separate
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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
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72897 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-04 22:49:04 +00:00
Chris Lattner
0e98e4d299
fix PR4284, a bug in simplifylibcalls handling memcmp. Patch by
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Benjamin Kramer!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72625 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-30 18:43:04 +00:00
Chris Lattner
bcc2e7dc2c
Fix PR4206 - crash in simplify lib calls
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71644 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-13 06:26:11 +00:00
Chris Lattner
5db4cdfc56
"There was a typo in my previous patch which leads to miscompilation of
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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!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68905 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-12 18:22:33 +00:00
Chris Lattner
f5b6bc7f0e
add some optimizations for strncpy/strncat and factor some
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code. Patch by Benjamin Kramer!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68885 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-12 05:06:39 +00:00
Ed Schouten
b5e0a96a8d
Let the strcat optimizer return the pointer to the start of the buffer,
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instead of the place where it started to perform the string copy.
- PR3661
- Patch by Benjamin Kramer!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68443 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-06 13:06:48 +00:00
Bill Wendling
0582ae99ba
Oops...I committed too much.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66867 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-13 04:39:26 +00:00
Bill Wendling
c7a09ab311
Temporarily XFAIL this test.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66866 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-13 04:37:11 +00:00
Nick Lewycky
225f747486
Update the list of function annotations for nocapture. All of these came up
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64615 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-15 22:47:25 +00:00