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129 Commits

Author SHA1 Message Date
Nick Lewycky
16490a3bf1 Detabify this file. 
llvm-svn: 107637
 2010-07-06 03:53:43 +00:00
Gabor Greif
016e24ce4c use ArgOperand API 
llvm-svn: 107278
 2010-06-30 12:42:43 +00:00
Gabor Greif
29b71efff8 use ArgOperand API 
llvm-svn: 106731
 2010-06-24 10:42:46 +00:00
Rafael Espindola
6ccafc9391 Make sure that simplify libcalls does not replace a call with one calling 
convention with a new call with a different calling convention.

llvm-svn: 106134
 2010-06-16 19:34:01 +00:00
Benjamin Kramer
f600dc2eed simplify-libcalls: fold strncmp(x, y, 1) -> memcmp(x, y, 1) 
The memcmp will be optimized further and even the pathological case
'strstr(x, "x") == x' generates optimal code now.

llvm-svn: 106097
 2010-06-16 10:30:29 +00:00
Benjamin Kramer
21a49e9375 simplify-libcalls: fold strstr(a, b) == a -> strncmp(a, b, strlen(b)) == 0 
llvm-svn: 106047
 2010-06-15 21:34:25 +00:00
Benjamin Kramer
40bf97c59d Kill unneeded SExt. 
llvm-svn: 104692
 2010-05-26 09:45:04 +00:00
Benjamin Kramer
0acbf37982 Properly promote operands when optimizing a single-character memcmp. 
llvm-svn: 104648
 2010-05-25 22:53:43 +00:00
Eric Christopher
e78496e5f1 Revert 101465, it broke internal OpenGL testing. 
Probably the best way to know that all getOperand() calls have been handled
is to replace that API instead of updating.

llvm-svn: 101579
 2010-04-16 23:37:20 +00:00
Gabor Greif
e7d6812008 reapply r101434 
with a fix for self-hosting

rotate CallInst operands, i.e. move callee to the back
of the operand array

the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary

llvm-svn: 101465
 2010-04-16 15:33:14 +00:00
Gabor Greif
cd116e8c6a back out r101423 and r101397, they break llvm-gcc self-host on darwin10 
llvm-svn: 101434
 2010-04-16 01:16:20 +00:00
Gabor Greif
2e18d34d80 reapply r101364, which has been backed out in r101368 
with a fix

rotate CallInst operands, i.e. move callee to the back
of the operand array

the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary

llvm-svn: 101397
 2010-04-15 20:51:13 +00:00
Gabor Greif
6022150477 back out r101364, as it trips the linux nightlybot on some clang C++ tests 
llvm-svn: 101368
 2010-04-15 12:46:56 +00:00
Gabor Greif
428ca23bbd rotate CallInst operands, i.e. move callee to the back 
of the operand array

the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary

llvm-svn: 101364
 2010-04-15 10:49:53 +00:00
Mon P Wang
484bbe6aa9 Reapply address space patch after fixing an issue in MemCopyOptimizer. 
Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset,
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)

llvm-svn: 100304
 2010-04-04 03:10:48 +00:00
Mon P Wang
0ccf050ca3 Revert r100191 since it breaks objc in clang 
llvm-svn: 100199
 2010-04-02 18:43:02 +00:00
Mon P Wang
a01350755e Reapply address space patch after fixing an issue in MemCopyOptimizer. 
Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset,
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)

llvm-svn: 100191
 2010-04-02 18:04:15 +00:00
Bob Wilson
aae933cc81 Revert Mon Ping's change 99928, since it broke all the llvm-gcc buildbots. 
llvm-svn: 99948
 2010-03-30 22:27:04 +00:00
Mon P Wang
9351ea594a Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset, 
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)
A update of langref will occur in a subsequent checkin.

llvm-svn: 99928
 2010-03-30 20:55:56 +00:00
Evan Cheng
6ef7ae33a5 Move OptChkCall off LibCallOptimization into StrCpyOpt. 
llvm-svn: 99418
 2010-03-24 20:19:04 +00:00
Evan Cheng
1144c23330 Teach simplify libcall to transform __strcpy_chk to __memcpy_chk to enable optimizations down stream. 
llvm-svn: 99282
 2010-03-23 15:48:04 +00:00
Benjamin Kramer
94c90c236b str[r]chr returns its pointer argument so we cannot mark it as nocapture. Thanks to Duncan for spotting my mistake. 
llvm-svn: 98671
 2010-03-16 20:33:15 +00:00
Benjamin Kramer
4b48f8274f Mark str[r]chr readonly. 
llvm-svn: 98663
 2010-03-16 19:36:43 +00:00
Eric Christopher
a671e4f7aa Migrate _chk call lowering from SimplifyLibCalls to InstCombine. Stub 
out the remainder of the calls that we should lower in some way and
move the tests to the new correct directory. Fix up tests that are now
optimized more than they were before by -instcombine.

llvm-svn: 97875
 2010-03-06 10:50:38 +00:00
Eric Christopher
dfb465a816 Move SimplifyLibCalls's LibCall builders to a separate file so they 
can be used in more places.  Add an argument for the TargetData that
most of them need. Update for the getInt8PtrTy() change.  Should be
no functionality change.

llvm-svn: 97844
 2010-03-05 22:25:30 +00:00
Evan Cheng
3346ea1d4e Safely turn memset_chk etc. to non-chk variant if the known object size is >= memset / memcpy / memmove size. 
llvm-svn: 97828
 2010-03-05 20:59:47 +00:00
Eric Christopher
3e3c445c81 Move GetStringLength and helper from SimplifyLibCalls to ValueTracking. 
No functionality change.

llvm-svn: 97793
 2010-03-05 06:58:57 +00:00
Duncan Sands
1b33dd3c83 There are two ways of checking for a given type, for example isa<PointerType>(T) 
and T->isPointerTy().  Convert most instances of the first form to the second form.
Requested by Chris.

llvm-svn: 96344
 2010-02-16 11:11:14 +00:00
Duncan Sands
2acaf3609c Uniformize the names of type predicates: rather than having isFloatTy and 
isInteger, we now have isFloatTy and isIntegerTy.  Requested by Chris!

llvm-svn: 96223
 2010-02-15 16:12:20 +00:00
Eric Christopher
ac28e14b77 Recommit this, looks like it wasn't the cause. 
llvm-svn: 95165
 2010-02-03 00:21:58 +00:00
Eric Christopher
f070aae6f7 Hopefully temporarily revert this. 
llvm-svn: 95154
 2010-02-02 23:01:31 +00:00
Eric Christopher
575fe8690d Re-add strcmp and known size object size checking optimization. 
Passed bootstrap and nightly test run here.

llvm-svn: 95145
 2010-02-02 22:10:43 +00:00
Eric Christopher
02559754dc Don't need to check the last argument since it'll always be bool. We also 
don't use TargetData here.

llvm-svn: 95040
 2010-02-02 00:51:45 +00:00
Eric Christopher
48f2aae32f More indentation/tabification fixes. 
llvm-svn: 95036
 2010-02-02 00:13:06 +00:00
Eric Christopher
1004836336 Untabify previous commit. 
llvm-svn: 95035
 2010-02-02 00:06:55 +00:00
Eric Christopher
9e9e599070 Formatting. 
llvm-svn: 95027
 2010-02-01 23:25:03 +00:00
Eric Christopher
47d90f7adb Revert my last couple of patches. They appear to have broken bison. 
llvm-svn: 94841
 2010-01-29 21:16:24 +00:00
Eric Christopher
f01379e6c2 Make strcpy_chk lower to strcpy if we have a safe size. 
llvm-svn: 94783
 2010-01-29 01:37:11 +00:00
Eric Christopher
bc8f2b1a56 Reapply 94059 while fixing the calling convention setup 
for strcpy.

llvm-svn: 94287
 2010-01-23 05:29:06 +00:00
Bob Wilson
8d14b72877 Revert 94059. It is breaking the MultiSource/Benchmarks/Prolangs-C/bison 
test on ARM.

llvm-svn: 94198
 2010-01-22 19:16:40 +00:00
Eric Christopher
939ad8be86 Add strcpy_chk -> strcpy support for "don't know" object size 
answers.  This will update as object size checking gets better information.

llvm-svn: 94059
 2010-01-21 01:04:38 +00:00
Eric Christopher
0574ce70c3 Move the object size intrinsic optimization to inst-combine and make 
it work for any integer size return type.

llvm-svn: 92853
 2010-01-06 20:04:44 +00:00
Mikhail Glushenkov
f7e36a1fe2 Formatting. 
llvm-svn: 92831
 2010-01-06 09:20:39 +00:00
Benjamin Kramer
0ba7479f2c Move remaining stuff to the isInteger predicate. 
llvm-svn: 92771
 2010-01-05 21:05:54 +00:00
David Greene
bb6730f5ac Change errs() to dbgs(). 
llvm-svn: 92615
 2010-01-05 01:27:21 +00:00
Mikhail Glushenkov
38e36d577a 80-col violations, trailing whitespace. 
llvm-svn: 92470
 2010-01-04 07:55:25 +00:00
Chris Lattner
5d3919d5f9 move an optimization for memcmp out of simplifylibcalls and into 
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
Chris Lattner
7dbb93e430 reorder to follow a normal fall-through style, no functionality change. 
llvm-svn: 92084
 2009-12-23 23:24:51 +00:00
Eric Christopher
ce677a909d Update objectsize intrinsic and associated dependencies. Fix 
lowering code and update testcases.

llvm-svn: 91979
 2009-12-23 02:51:48 +00:00
Eric Christopher
c1b128aa04 Whitespace fixes. 
llvm-svn: 91875
 2009-12-22 01:23:51 +00:00