1a32ede6fd
move an optimization for memcmp out of simplifylibcalls and into
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SDISel. This optimization was causing simplifylibcalls to
introduce type-unsafe nastiness. This is the first step, I'll be
expanding the memcmp optimizations shortly, covering things that
we really really wouldn't want simplifylibcalls to do.
llvm-svn: 92098
2009-12-24 00:37:38 +00:00
efebb234b7
reorder to follow a normal fall-through style, no functionality change.
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llvm-svn: 92084
2009-12-23 23:24:51 +00:00
fdb33458fc
Update objectsize intrinsic and associated dependencies. Fix
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lowering code and update testcases.
llvm-svn: 91979
2009-12-23 02:51:48 +00:00
ab6a0d60d5
Whitespace fixes.
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llvm-svn: 91875
2009-12-22 01:23:51 +00:00
f278addbdc
reapply my strstr optimization. I have reproduced the x86-64 bootstrap
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miscompile (i386.o miscompares) but it happens both with and without
this patch.
llvm-svn: 91532
2009-12-16 09:32:05 +00:00
177be32334
revert my strstr optimization, I'm told it breaks x86-64 bootstrap.
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Will reapply with a fix when I get a chance.
llvm-svn: 91486
2009-12-16 00:46:02 +00:00
26ab363361
optimize strstr, PR5783
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llvm-svn: 91438
2009-12-15 19:14:40 +00:00
24aba42d04
add some other xforms that should be done as part of PR5783
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llvm-svn: 91428
2009-12-15 09:05:13 +00:00
eea42c7b51
tidy up, remove dependence on order of evaluation of function args from EmitMemCpy.
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llvm-svn: 90297
2009-12-02 06:05:42 +00:00
0c7bd96de2
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.
llvm-svn: 89523
2009-11-21 01:01:30 +00:00
f87c75706f
Revert "Add some rough optimizations for checking routines.", it buildeth not.
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llvm-svn: 89482
2009-11-20 20:17:30 +00:00
cf97d01dff
Add some rough optimizations for checking routines.
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llvm-svn: 89479
2009-11-20 19:57:37 +00:00
e5de4a9ad6
CreateIntCast takes an "isSigned" parameter. Pass "true" for it, rather than
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a name.
llvm-svn: 88908
2009-11-16 12:32:28 +00:00
feeabde753
fix PR5104: when printing a single character, return the result of
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putchar in case there is an error.
llvm-svn: 86515
2009-11-09 04:57:04 +00:00
b971445ab7
Teach SimplifyLibCalls to fold memcmp calls with constant arguments.
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llvm-svn: 86141
2009-11-05 17:44:22 +00:00
7a50b280c1
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.
llvm-svn: 85189
2009-10-27 00:52:25 +00:00
5b741f3d14
80-column and whitespace fixes.
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llvm-svn: 83489
2009-10-07 21:14:25 +00:00
9ed7b16bf3
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.
llvm-svn: 83379
2009-10-06 15:40:36 +00:00
fdd8790718
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.
llvm-svn: 83297
2009-10-05 05:54:46 +00:00
62995c71a2
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.
llvm-svn: 82867
2009-09-26 18:10:13 +00:00
394468dc8e
Rename ConstantFP's getInf to getInfinity.
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llvm-svn: 82823
2009-09-25 23:40:21 +00:00
5ffd53892d
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.
llvm-svn: 82819
2009-09-25 23:10:17 +00:00
5d034499ad
Enhance transform passes so that they apply the same tranforms to malloc calls as to MallocInst.
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Reviewed by Dan Gohman.
llvm-svn: 82300
2009-09-18 22:35:49 +00:00
27266f164f
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
llvm-svn: 80887
2009-09-03 05:19:59 +00:00
2dd09dbdf7
eliminate VISIBILITY_HIDDEN from Transforms/Scalar. PR4861
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llvm-svn: 80766
2009-09-02 06:11:42 +00:00
dea2358c68
Fix SimplifyLibcalls and ValueTracking to check mayBeOverridden
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before performing optimizations based on constant string values.
llvm-svn: 79384
2009-08-19 00:11:12 +00:00
9f2b3db428
Make TargetData optional in SimplifyLibCalls.
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llvm-svn: 79298
2009-08-18 00:48:13 +00:00
55f1c09e31
Push LLVMContexts through the IntegerType APIs.
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llvm-svn: 78948
2009-08-13 21:58:54 +00:00
5a1acd9912
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.
llvm-svn: 77721
2009-07-31 20:28:14 +00:00
4056ca9568
Move types back to the 2.5 API.
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llvm-svn: 77516
2009-07-29 22:17:13 +00:00
98ddd164d8
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).
llvm-svn: 77512
2009-07-29 22:00:43 +00:00
487375e9a2
Move ConstantExpr to 2.5 API.
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llvm-svn: 77494
2009-07-29 18:55:55 +00:00
f82326b984
Bulk erasing instructions without RAUWing them is unsafe. Instead, break them
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into a new BB that has no predecessors.
llvm-svn: 77433
2009-07-29 05:17:50 +00:00
c2c7932c64
Change ConstantArray to 2.5 API.
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llvm-svn: 77347
2009-07-28 18:32:17 +00:00
69c464dec4
Move ConstantFP construction back to the 2.5-ish API.
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llvm-svn: 77247
2009-07-27 20:59:43 +00:00
ca414c7cae
Remove Value::getNameLen
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llvm-svn: 77148
2009-07-26 08:34:35 +00:00
9813b0b025
Eliminate some uses of DOUT, cerr, and getNameStart().
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llvm-svn: 77145
2009-07-26 07:49:05 +00:00
e03eecb75f
Remove Value::{isName, getNameRef}.
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Also, change MDString to use a StringRef.
llvm-svn: 77098
2009-07-25 23:55:21 +00:00
edb4a70325
Revert the ConstantInt constructors back to their 2.5 forms where possible, thanks to contexts-on-types. More to come.
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llvm-svn: 77011
2009-07-24 23:12:02 +00:00
5bf72e20eb
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.
llvm-svn: 76888
2009-07-23 18:17:34 +00:00
47db941fd3
Get rid of the Pass+Context magic.
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llvm-svn: 76702
2009-07-22 00:24:57 +00:00
ff9bf97ceb
Fix simplifylibcalls memset recognition to work on 64-bit platforms
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where int is 32 bits.
llvm-svn: 76293
2009-07-18 08:34:51 +00:00
20b34ac794
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
llvm-svn: 76089
2009-07-16 18:04:31 +00:00
542619e6d5
Move more functionality over to LLVMContext.
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llvm-svn: 75497
2009-07-13 20:58:05 +00:00
a771459bb1
Push LLVMContext _back_ through IRBuilder.
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llvm-svn: 75040
2009-07-08 20:50:47 +00:00
b17f32945f
Switch GlobalVariable ctors to a sane API, where *either* a context or a module is required.
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llvm-svn: 75025
2009-07-08 19:03:57 +00:00
5948fdf68b
Push LLVMContext through GlobalVariables and IRBuilder.
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llvm-svn: 74985
2009-07-08 01:26:06 +00:00
340288c621
Even more passes being LLVMContext'd.
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llvm-svn: 74781
2009-07-03 19:42:02 +00:00
87a222c5c8
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!
llvm-svn: 73751
2009-06-19 04:17:36 +00:00
6ee547bb1b
Revert IRBuilder CC propagation. Fix SimplifyLibCalls instead.
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llvm-svn: 73715
2009-06-18 20:05:31 +00:00
Chris Lattner