Neil Booth
1ca1f80b38
Tweak RoundAwayFromZero the bit number below which is truncated, and make
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it const.
Preparation for APFloat -> hexadecimal string conversion.
llvm-svn: 42576
2007-10-03 15:16:41 +00:00
Dale Johannesen
28a2c4a9c4
Simplify and fix signed int -> FP conversions.
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llvm-svn: 42483
2007-09-30 18:17:01 +00:00
Neil Booth
9acbf5aaf9
Whitespace and compiler warning cleanup.
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llvm-svn: 42373
2007-09-26 21:33:42 +00:00
Dale Johannesen
e7439eff5a
Make APFloat->int conversions deterministic even in
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cases with undefined behavior.
llvm-svn: 42328
2007-09-25 23:07:07 +00:00
Dale Johannesen
4f55d9fe0f
Fix long double<->shorter FP type conversions
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of zero, infinity, and NaNs.
llvm-svn: 42298
2007-09-25 17:25:00 +00:00
Neil Booth
a8d7269269
Handle storage complications of float->float conversions.
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llvm-svn: 42220
2007-09-22 02:56:19 +00:00
Dale Johannesen
4230512f32
Change APFloat::convertFromInteger to take the incoming
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bit width instead of number of words allocated, which
makes it actually work for int->APF conversions.
Adjust callers. Add const to one of the APInt constructors
to prevent surprising match when called with const
argument.
llvm-svn: 42210
2007-09-21 22:09:37 +00:00
Dale Johannesen
146a0ea071
Fix PR 1688. See comments there.
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llvm-svn: 42181
2007-09-20 23:47:58 +00:00
Dan Gohman
58c468fb09
Remove spurious consts. This fixes warnings with compilers that
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are strict about such things.
llvm-svn: 41956
2007-09-14 20:08:19 +00:00
Dale Johannesen
521988b604
Compensate for partCount change in Bogus definition
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(could break hash table in ConstantFP)
llvm-svn: 41874
2007-09-12 01:22:05 +00:00
Dale Johannesen
245dceb06d
Add APInt interfaces to APFloat (allows directly
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access to bits). Use them in place of float and
double interfaces where appropriate.
First bits of x86 long double constants handling
(untested, probably does not work).
llvm-svn: 41858
2007-09-11 18:32:33 +00:00
Dale Johannesen
728687c423
Fix mod so it actually works. Fix conversions to
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native types to handle denormals correctly.
llvm-svn: 41726
2007-09-05 20:39:49 +00:00
Dale Johannesen
689d17d282
Oops, should be part of 41664; won't work very well without this piece.
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llvm-svn: 41665
2007-08-31 23:35:31 +00:00
Dale Johannesen
3cf889f75e
Enhance APFloat to retain bits of NaNs (fixes oggenc).
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Use APFloat interfaces for more references, mostly
of ConstantFPSDNode.
llvm-svn: 41632
2007-08-31 04:03:46 +00:00
Dale Johannesen
d246b2ca5c
Change LegalFPImmediates to use APFloat.
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Add APFloat interfaces to ConstantFP, SelectionDAG.
Fix integer bit in double->APFloat conversion.
Convert LegalizeDAG to use APFloat interface in
ConstantFPSDNode uses.
llvm-svn: 41587
2007-08-30 00:23:21 +00:00
Dale Johannesen
bdea32d812
Poison APFloat::operator==. Replace existing uses with bitwiseIsEqual.
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This means backing out the preceding change to Constants.cpp, alas.
llvm-svn: 41378
2007-08-24 22:09:56 +00:00
Dale Johannesen
918c33c67a
Revised per review feedback from previous patch.
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llvm-svn: 41353
2007-08-24 05:08:11 +00:00
Chris Lattner
3da18eb22a
silence some warnings in an optimized build.
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llvm-svn: 41352
2007-08-24 03:02:34 +00:00
Dale Johannesen
a719a60609
Change internal representation of ConstantFP to use APFloat.
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Interface to rest of the compiler unchanged, as yet.
llvm-svn: 41348
2007-08-24 00:56:33 +00:00
Chris Lattner
fe02c1f97f
initial checkin of Neil's APFloat work.
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llvm-svn: 41203
2007-08-20 22:49:32 +00:00