Jeffrey Yasskin
3ba292dbc2
Add APInt(numBits, ArrayRef<uint64_t> bigVal) constructor to prevent future ambiguity
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errors like the one corrected by r135261. Migrate all LLVM callers of the old
constructor to the new one.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135431 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-18 21:45:40 +00:00
Ted Kremenek
cf886188fb
add option for literal formatting to APInt::toString()
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toString() now takes an optional bool argument that,
depending on the radix, adds the appropriate prefix
to the integer's string representation that makes it into a
meaningful C literal, e.g.:
hexademical: '-f' becomes '-0xf'
octal: '77' becomes '077'
binary: '110' becomes '0b110'
Patch by nobled@dreamwidth.org !
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133032 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-15 00:51:55 +00:00
Chris Lattner
c4cb237ca6
fix a bug for hosts without round, PR8893.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131842 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-22 06:03:53 +00:00
Chris Lattner
7a2bdde0a0
Fix a ton of comment typos found by codespell. Patch by
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Luis Felipe Strano Moraes!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129558 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-15 05:18:47 +00:00
Frits van Bommel
6208610fd6
Constant folding support for calls to umul.with.overflow(), basically identical to the smul.with.overflow() code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128379 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-27 14:26:13 +00:00
Benjamin Kramer
d9103df51b
Add an argument to APInt's magic udiv calculation to specify the number of bits that are known zero in the divided number.
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This will come in handy soon.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127828 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-17 20:39:06 +00:00
Cameron Zwarich
8d7285d0e5
The signed version of our "magic number" computation for the integer approximation
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of a constant had a minor typo introduced when copying it from the book, which
caused it to favor negative approximations over positive approximations in many
cases. Positive approximations require fewer operations beyond the multiplication.
In the case of division by 3, we still generate code that is a single instruction
larger than GCC's code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126097 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 00:22:02 +00:00
Jay Foad
40f8f6264d
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121120 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-07 08:25:19 +00:00
Benjamin Kramer
fd6d53fbad
APInt: microoptimize a few methods.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120912 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-04 18:05:36 +00:00
Jay Foad
7a874ddda0
PR5207: Rename overloaded APInt methods set(), clear(), flip() to
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setAllBits(), setBit(unsigned), etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120564 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-01 08:53:58 +00:00
Jay Foad
a99793c5ea
PR5207: Make APInt::set(), APInt::clear() and APInt::flip() return void.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120413 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 09:02:01 +00:00
Dan Gohman
078d967e0a
Bounds-check APInt's operator[].
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119708 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-18 17:14:56 +00:00
Chris Lattner
a5bbde8efd
fix a bug I introduced, no idea how this didn't repro right.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116462 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-14 00:30:00 +00:00
Chris Lattner
eafc5cb80d
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116457 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-14 00:05:07 +00:00
Chris Lattner
0a0a585e6b
constify these methods.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116455 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-13 23:54:10 +00:00
Chris Lattner
f2ddc64c87
add a few operations for signed operations that also
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return an overflow flag.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116452 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-13 23:46:33 +00:00
Chris Lattner
5083912dd7
stomp some more undefined behavior, PR7775.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111337 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-18 00:33:47 +00:00
Benjamin Kramer
38e59891ee
Don't pass StringRef by reference.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108366 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-14 22:38:02 +00:00
Chris Lattner
4c297c9153
improve portability to systems that don't have round, patch by
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Evzen Muller!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103877 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-15 17:11:55 +00:00
Chris Lattner
67eadb397a
improve portability to minix, patch by
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Kees van Reeuwijk for PR6704
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99677 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-26 23:54:15 +00:00
Dan Gohman
16e02097d2
Fix minor style issues.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99414 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-24 19:38:02 +00:00
John McCall
e12b73816b
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97364 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-28 02:51:25 +00:00
Dan Gohman
f451cb870e
Fix "the the" and similar typos.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95781 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-10 16:03:48 +00:00
John McCall
281d051921
Make APInt::countLeadingZerosSlowCase() treat the contents of padding bits
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as undefined. Fixes an assertion in APFloat::toString noticed by Dale.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95196 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03 03:42:44 +00:00
David Greene
465abed388
Change errs() to dbgs().
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92643 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05 01:28:52 +00:00
John McCall
d73bf5987a
Set Remainder before Quotient in case Quotient and LHS alias. The new
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order should be immune to such problems.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92124 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-24 08:52:06 +00:00
Daniel Dunbar
a279bc3da5
Tabs -> spaces, and remove trailing whitespace.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82355 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-20 02:20:51 +00:00
Duncan Sands
b7c5bdf843
Remove some unused variables and methods warned about by
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icc (#177 , partial). Patch by Erick Tryzelaar.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81106 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-06 08:33:48 +00:00
Chris Lattner
91021d3390
remove the dead std::ostream APInt inserter
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79875 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-23 23:11:28 +00:00
Erick Tryzelaar
56c39eb232
Clean up the APInt function getDigit.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79602 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-21 06:48:37 +00:00
Eric Christopher
e250f2a5ee
Update error messages for '+'. Fix grammar and make the two
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negative checks resemble each other.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79595 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-21 04:10:31 +00:00
Eric Christopher
d37eda8c1d
Fix trailing whitespace and 80-col violation.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79594 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-21 04:06:45 +00:00
Erick Tryzelaar
ae8f78d4de
Fix bug with APInt::getBitsNeeded with for base 10 numbers 0-9.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79593 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-21 03:15:28 +00:00
Erick Tryzelaar
bb97531a5a
Allow '+' to appear in APInt strings, and add more unit tests.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79592 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-21 03:15:14 +00:00
Daniel Dunbar
dddfd34e32
Switch to SmallString::str from SmallString::c_str, and remove
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SmallString::c_str.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79456 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-19 20:07:03 +00:00
Daniel Dunbar
689ad6ef3f
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78885 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-13 02:33:34 +00:00
Dale Johannesen
4e97a0f0cb
Add attempted idiotproofing comment per review.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78825 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-12 18:04:11 +00:00
Dale Johannesen
39c177d8b7
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78821 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-12 17:42:34 +00:00
Torok Edwin
c23197a26f
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").
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75640 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-14 16:55:14 +00:00
Daniel Dunbar
a53902b258
Switch to raw_ostream.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75451 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-13 05:27:30 +00:00
Torok Edwin
c25e7581b9
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75379 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-11 20:10:48 +00:00
Dan Gohman
38a253ddf7
Reapply 74494, this time removing the conflicting definition of operator<<
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in APIntTest.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74550 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-30 20:10:56 +00:00
Bill Wendling
527b6e6292
Temporarily revert r74494. It was causing failures in the unit tests.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74515 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-30 07:05:27 +00:00
Dan Gohman
670031666c
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74494 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-30 01:28:08 +00:00
Evan Cheng
cf69a743b7
80 column violation.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72235 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-21 23:47:47 +00:00
Mike Stump
f3dc0c048a
Fix whitespacing (space after switch).
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71738 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-13 23:23:20 +00:00
Jay Foad
4e5ea553d0
Move helper functions for optimizing division by constant into the APInt
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class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70488 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-30 10:15:35 +00:00
Chris Lattner
38300e91f5
Fix PR4040: APInt's string constructor is too strict
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patch by Jeff Yasskin!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70058 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-25 18:34:04 +00:00
Dan Gohman
de551f91d8
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68227 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-01 18:45:54 +00:00
Duncan Sands
bf5836b075
Fix comment typo.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67302 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-19 11:37:15 +00:00