Jay Foad
79e18ed269
PR5207: Change APInt methods trunc(), sext(), zext(), sextOrTrunc() and
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zextOrTrunc(), and APSInt methods extend(), extOrTrunc() and new method
trunc(), to be const and to return a new value instead of modifying the
object in place.
llvm-svn: 121120
2010-12-07 08:25:19 +00:00
Benjamin Kramer
e2e8053264
APInt: microoptimize a few methods.
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llvm-svn: 120912
2010-12-04 18:05:36 +00:00
Jay Foad
789e8ac4f7
PR5207: Rename overloaded APInt methods set(), clear(), flip() to
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setAllBits(), setBit(unsigned), etc.
llvm-svn: 120564
2010-12-01 08:53:58 +00:00
Jay Foad
c663d7e4f6
PR5207: Make APInt::set(), APInt::clear() and APInt::flip() return void.
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llvm-svn: 120413
2010-11-30 09:02:01 +00:00
Dan Gohman
3f08bf5bea
Bounds-check APInt's operator[].
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llvm-svn: 119708
2010-11-18 17:14:56 +00:00
Chris Lattner
27d8b68afa
fix a bug I introduced, no idea how this didn't repro right.
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llvm-svn: 116462
2010-10-14 00:30:00 +00:00
Chris Lattner
451a0accb5
add uadd_ov/usub_ov to apint, consolidate constant folding
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logic to use the new APInt methods. Among other things this
implements rdar://8501501 - llvm.smul.with.overflow.i32 should constant fold
which comes from "clang -ftrapv", originally brought to my attention from PR8221.
llvm-svn: 116457
2010-10-14 00:05:07 +00:00
Chris Lattner
093d5fe0a9
constify these methods.
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llvm-svn: 116455
2010-10-13 23:54:10 +00:00
Chris Lattner
70a78ab2c5
add a few operations for signed operations that also
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return an overflow flag.
llvm-svn: 116452
2010-10-13 23:46:33 +00:00
Chris Lattner
ba9f26fade
stomp some more undefined behavior, PR7775.
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llvm-svn: 111337
2010-08-18 00:33:47 +00:00
Benjamin Kramer
da3e6cdb26
Don't pass StringRef by reference.
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llvm-svn: 108366
2010-07-14 22:38:02 +00:00
Chris Lattner
a1f4042939
improve portability to systems that don't have round, patch by
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Evzen Muller!
llvm-svn: 103877
2010-05-15 17:11:55 +00:00
Chris Lattner
ebe18a8f38
improve portability to minix, patch by
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Kees van Reeuwijk for PR6704
llvm-svn: 99677
2010-03-26 23:54:15 +00:00
Dan Gohman
177e2ae058
Fix minor style issues.
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llvm-svn: 99414
2010-03-24 19:38:02 +00:00
John McCall
69bc985550
Teach APFloat how to create both QNaNs and SNaNs and with arbitrary-width
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payloads. APFloat's internal folding routines always make QNaNs now,
instead of sometimes making QNaNs and sometimes SNaNs depending on the
type.
llvm-svn: 97364
2010-02-28 02:51:25 +00:00
Dan Gohman
92b6122204
Fix "the the" and similar typos.
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llvm-svn: 95781
2010-02-10 16:03:48 +00:00
John McCall
8bcabdeffc
Make APInt::countLeadingZerosSlowCase() treat the contents of padding bits
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as undefined. Fixes an assertion in APFloat::toString noticed by Dale.
llvm-svn: 95196
2010-02-03 03:42:44 +00:00
David Greene
70b4a7ebff
Change errs() to dbgs().
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llvm-svn: 92643
2010-01-05 01:28:52 +00:00
John McCall
dad4e2e4e5
Set Remainder before Quotient in case Quotient and LHS alias. The new
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order should be immune to such problems.
llvm-svn: 92124
2009-12-24 08:52:06 +00:00
Daniel Dunbar
378331a13d
Tabs -> spaces, and remove trailing whitespace.
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llvm-svn: 82355
2009-09-20 02:20:51 +00:00
Duncan Sands
10c1356bad
Remove some unused variables and methods warned about by
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icc (#177 , partial). Patch by Erick Tryzelaar.
llvm-svn: 81106
2009-09-06 08:33:48 +00:00
Chris Lattner
c02ffc37e0
remove the dead std::ostream APInt inserter
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llvm-svn: 79875
2009-08-23 23:11:28 +00:00
Erick Tryzelaar
e3280847cc
Clean up the APInt function getDigit.
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llvm-svn: 79602
2009-08-21 06:48:37 +00:00
Eric Christopher
972db4c0d3
Update error messages for '+'. Fix grammar and make the two
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negative checks resemble each other.
llvm-svn: 79595
2009-08-21 04:10:31 +00:00
Eric Christopher
8f257f5c7d
Fix trailing whitespace and 80-col violation.
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llvm-svn: 79594
2009-08-21 04:06:45 +00:00
Erick Tryzelaar
ff8b504eb3
Fix bug with APInt::getBitsNeeded with for base 10 numbers 0-9.
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llvm-svn: 79593
2009-08-21 03:15:28 +00:00
Erick Tryzelaar
11660bb729
Allow '+' to appear in APInt strings, and add more unit tests.
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llvm-svn: 79592
2009-08-21 03:15:14 +00:00
Daniel Dunbar
2cf5eb67b4
Switch to SmallString::str from SmallString::c_str, and remove
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SmallString::c_str.
llvm-svn: 79456
2009-08-19 20:07:03 +00:00
Daniel Dunbar
3a5a25d5d5
Convert APint::{fromString,APInt,getBitsNeeded} to use StringRef.
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- Patch by Erick Tryzelaar, with some edits (and a bug fix) from me.
llvm-svn: 78885
2009-08-13 02:33:34 +00:00
Dale Johannesen
85f81b93cb
Add attempted idiotproofing comment per review.
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llvm-svn: 78825
2009-08-12 18:04:11 +00:00
Dale Johannesen
edc3ef6a0b
Fix a nondeterministic bug in APInt::roundToDouble;
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when !isSingleWord() but getActiveBits() is small,
we were using the pointer value instead of the low
word of the integer value.
llvm-svn: 78821
2009-08-12 17:42:34 +00:00
Torok Edwin
f955a6ef49
llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable.
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This adds location info for all llvm_unreachable calls (which is a macro now) in
!NDEBUG builds.
In NDEBUG builds location info and the message is off (it only prints
"UREACHABLE executed").
llvm-svn: 75640
2009-07-14 16:55:14 +00:00
Daniel Dunbar
8338833066
Switch to raw_ostream.
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llvm-svn: 75451
2009-07-13 05:27:30 +00:00
Torok Edwin
ae8a3ff177
assert(0) -> LLVM_UNREACHABLE.
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Make llvm_unreachable take an optional string, thus moving the cerr<< out of
line.
LLVM_UNREACHABLE is now a simple wrapper that makes the message go away for
NDEBUG builds.
llvm-svn: 75379
2009-07-11 20:10:48 +00:00
Dan Gohman
148d3bb9b4
Reapply 74494, this time removing the conflicting definition of operator<<
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in APIntTest.cpp.
llvm-svn: 74550
2009-06-30 20:10:56 +00:00
Bill Wendling
1121a4ce5e
Temporarily revert r74494. It was causing failures in the unit tests.
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llvm-svn: 74515
2009-06-30 07:05:27 +00:00
Dan Gohman
f207911974
Define an operator<< for APInt to be used with std::ostream.
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This will allow it to be used in unittests that use gtest's
EXPECT_EQ.
llvm-svn: 74494
2009-06-30 01:28:08 +00:00
Evan Cheng
dd4f34ed9a
80 column violation.
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llvm-svn: 72235
2009-05-21 23:47:47 +00:00
Mike Stump
6666fa7a2c
Fix whitespacing (space after switch).
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llvm-svn: 71738
2009-05-13 23:23:20 +00:00
Jay Foad
9768cabf4a
Move helper functions for optimizing division by constant into the APInt
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class.
llvm-svn: 70488
2009-04-30 10:15:35 +00:00
Chris Lattner
d68b203337
Fix PR4040: APInt's string constructor is too strict
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patch by Jeff Yasskin!
llvm-svn: 70058
2009-04-25 18:34:04 +00:00
Dan Gohman
770f4158e5
Use CHAR_BIT instead of hard-coding 8 in several places where it
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is appropriate. This helps visually differentiate host-oriented
calculations from target-oriented calculations.
llvm-svn: 68227
2009-04-01 18:45:54 +00:00
Duncan Sands
45d4adde66
Fix comment typo.
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llvm-svn: 67302
2009-03-19 11:37:15 +00:00
Stuart Hastings
4ee393a21a
Fix a hashing bug in APInt. A certain pathological testcase (too
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large for the testsuite) took over six minutes to compile on my Mac.
The patched LLVM-GCC compiles that testcase in three seconds (GCC
takes less than one second). This hash function is more complex
(about 35 instructions on x86) than what Chris wanted, but I expect it
will be well-behaved with arbitrary inputs.
Thank you to everyone who responded to my previous request for advice.
llvm-svn: 66962
2009-03-13 21:51:13 +00:00
Torok Edwin
47c303034d
APInt's countLeadingOnes() was broken for negative i128 values,
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causing assertion failures in getSExtValue().
Fix it by making highWordBits actually contain what its name says,
and add some more unit-tests for APInt.
This fixes PR3419.
llvm-svn: 63107
2009-01-27 18:06:03 +00:00
Chris Lattner
ca83aa289a
Remove uses of uint32_t in favor of 'unsigned' for better
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compatibility with cygwin. Patch by Jay Foad!
llvm-svn: 62695
2009-01-21 18:09:24 +00:00
Nick Lewycky
b98042a414
Fix typo, sentence fragment.
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llvm-svn: 62512
2009-01-19 17:42:33 +00:00
Chris Lattner
3d1cdfc99e
rearrange some code.
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llvm-svn: 57384
2008-10-11 22:07:19 +00:00
Chris Lattner
fe3155fc62
Switch the asmprinter (.ll) and all the stuff it requires over to
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use raw_ostream instead of std::ostream. Among other goodness,
this speeds up llvm-dis of kc++ with a release build from 0.85s
to 0.49s (88% faster).
Other interesting changes:
1) This makes Value::print be non-virtual.
2) AP[S]Int and ConstantRange can no longer print to ostream directly,
use raw_ostream instead.
3) This fixes a bug in raw_os_ostream where it didn't flush itself
when destroyed.
4) This adds a new SDNode::print method, instead of only allowing "dump".
A lot of APIs have both std::ostream and raw_ostream versions, it would
be useful to go through and systematically anihilate the std::ostream
versions.
This passes dejagnu, but there may be minor fallout, plz let me know if
so and I'll fix it.
llvm-svn: 55263
2008-08-23 22:23:09 +00:00
Chris Lattner
c9fdd97035
Move the fast-path (<=i64) cases of various APInt methods inline
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and the slow-path cases out of line. This speeds up instcombine
a bit in real world cases. Patch contributed by m-s.
llvm-svn: 55063
2008-08-20 17:02:31 +00:00