78b505b065
Move APInt::operator[] inline.
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llvm-svn: 152692
2012-03-14 00:38:15 +00:00
4c6a918cda
Move APInt::operator! inline, it's small and fuses well with surrounding code when inlined.
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llvm-svn: 152688
2012-03-14 00:01:35 +00:00
3870bc4805
Inline a trivial helper function.
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llvm-svn: 152577
2012-03-12 21:18:53 +00:00
0f90695e31
Replace a hand-coded leading one counting loop with the magic from MathExtras.h.
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llvm-svn: 152545
2012-03-11 19:32:35 +00:00
71bd7d1e54
Replace the hashing functions on APInt and APFloat with overloads of the
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new hash_value infrastructure, and replace their implementations using
hash_combine. This removes a complete copy of Jenkin's lookup3 hash
function (which is both significantly slower and lower quality than the
one implemented in hash_combine) along with a somewhat scary xor-only
hash function.
Now that APInt and APFloat can be passed directly to hash_combine,
simplify the rest of the LLVMContextImpl hashing to use the new
infrastructure.
llvm-svn: 152004
2012-03-04 12:02:57 +00:00
0dca5d8f8c
Fix undefined behavior.
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llvm-svn: 151385
2012-02-24 19:06:15 +00:00
bb893fea6b
Add r149110 back with a fix for when the vector and the int have the same
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width.
llvm-svn: 149151
2012-01-27 23:33:07 +00:00
2aae94fa70
Fix APInt::rotl and APInt::rotr so that they work correctly. Found while writing some code that tried to use them.
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llvm-svn: 147134
2011-12-22 03:15:35 +00:00
1c419ff50d
APInt: update asserts for base-36
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Hexatridecimal was added in r139695.
And fix the unittest that now triggers the assert.
llvm-svn: 146754
2011-12-16 20:36:31 +00:00
54c9462c77
Fix unreachable return & simplify some branches.
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llvm-svn: 145627
2011-12-01 20:58:30 +00:00
4f9a8081c3
Correctly byte-swap APInts with bit-widths greater than 64.
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llvm-svn: 145111
2011-11-23 21:33:37 +00:00
195464184e
Fix APInt::operator*= so that it computes the correct result for large integers where there is unsigned overflow. Fix APFloat::toString so that it doesn't depend on the incorrect behavior in common cases (and computes the correct result in some rare cases). Fixes PR11086.
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llvm-svn: 141441
2011-10-07 23:40:49 +00:00
c98ac850eb
U is good enough
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llvm-svn: 140166
2011-09-20 18:33:29 +00:00
e4e20f43e4
Eliminate sign-comparison warnings in APInt
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llvm-svn: 140158
2011-09-20 18:11:52 +00:00
c20a3ebba0
Silence -Wsign-compare warnings from GCC.
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llvm-svn: 140043
2011-09-19 20:08:54 +00:00
663c068d46
Add APInt support for converting to/from hexatridecimal strings
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llvm-svn: 139695
2011-09-14 15:54:46 +00:00
7a16288157
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.
llvm-svn: 135431
2011-07-18 21:45:40 +00:00
b05f02e956
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 !
llvm-svn: 133032
2011-06-15 00:51:55 +00:00
9f1d2ded13
fix a bug for hosts without round, PR8893.
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llvm-svn: 131842
2011-05-22 06:03:53 +00:00
0ab5e2cded
Fix a ton of comment typos found by codespell. Patch by
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Luis Felipe Strano Moraes!
llvm-svn: 129558
2011-04-15 05:18:47 +00:00
0bb2ad2cf7
Constant folding support for calls to umul.with.overflow(), basically identical to the smul.with.overflow() code.
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llvm-svn: 128379
2011-03-27 14:26:13 +00:00
09a51bab5d
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.
llvm-svn: 127828
2011-03-17 20:39:06 +00:00
8731d0cc83
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.
llvm-svn: 126097
2011-02-21 00:22:02 +00:00
583abbc4df
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
f1a04edb42
APInt: microoptimize a few methods.
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llvm-svn: 120912
2010-12-04 18:05:36 +00:00
25a5e4ca1f
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
15084f085d
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
5ed61fe6a1
Bounds-check APInt's operator[].
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llvm-svn: 119708
2010-11-18 17:14:56 +00:00
b9681ad442
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
698661c741
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
2c819b0358
constify these methods.
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llvm-svn: 116455
2010-10-13 23:54:10 +00:00
79bdd88fa4
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
b91c903f46
stomp some more undefined behavior, PR7775.
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llvm-svn: 111337
2010-08-18 00:33:47 +00:00
92d8998348
Don't pass StringRef by reference.
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llvm-svn: 108366
2010-07-14 22:38:02 +00:00
9e01b615a4
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
35a069b3a5
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
b452d4e9e4
Fix minor style issues.
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llvm-svn: 99414
2010-03-24 19:38:02 +00:00
dcb9a7ad3d
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
4a618827de
Fix "the the" and similar typos.
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llvm-svn: 95781
2010-02-10 16:03:48 +00:00
df951bddb8
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
f32fcb4d31
Change errs() to dbgs().
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llvm-svn: 92643
2010-01-05 01:28:52 +00:00
bd8d1e35a6
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
7d6781b0fe
Tabs -> spaces, and remove trailing whitespace.
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llvm-svn: 82355
2009-09-20 02:20:51 +00:00
2fbeaf084f
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
96cffa63a2
remove the dead std::ostream APInt inserter
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llvm-svn: 79875
2009-08-23 23:11:28 +00:00
6096409238
Clean up the APInt function getDigit.
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llvm-svn: 79602
2009-08-21 06:48:37 +00:00
43a1decc8c
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
820256bc99
Fix trailing whitespace and 80-col violation.
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llvm-svn: 79594
2009-08-21 04:06:45 +00:00
dadb1571b7
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
1264bcb4de
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
Benjamin Kramer