Neil Booth
b7dea4cb36
Tweak RoundAwayFromZero the bit number below which is truncated, and make
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it const.
Preparation for APFloat -> hexadecimal string conversion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42576 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-03 15:16:41 +00:00
Dale Johannesen
cce23a4c35
Simplify and fix signed int -> FP conversions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42483 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-30 18:17:01 +00:00
Neil Booth
4f88170be0
Whitespace and compiler warning cleanup.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42373 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-26 21:33:42 +00:00
Dale Johannesen
0edc47ad7b
Make APFloat->int conversions deterministic even in
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cases with undefined behavior.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42328 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-25 23:07:07 +00:00
Dale Johannesen
902ff94aff
Fix long double<->shorter FP type conversions
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of zero, infinity, and NaNs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42298 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-25 17:25:00 +00:00
Neil Booth
c8db43ddaf
Handle storage complications of float->float conversions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42220 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-22 02:56:19 +00:00
Dale Johannesen
910993e8dc
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42210 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-21 22:09:37 +00:00
Dale Johannesen
a72a5a095d
Fix PR 1688. See comments there.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42181 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-20 23:47:58 +00:00
Dan Gohman
cb648f90a2
Remove spurious consts. This fixes warnings with compilers that
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are strict about such things.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41956 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-14 20:08:19 +00:00
Dale Johannesen
257500db04
Compensate for partCount change in Bogus definition
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(could break hash table in ConstantFP)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41874 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-12 01:22:05 +00:00
Dale Johannesen
3f6eb7419d
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).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41858 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-11 18:32:33 +00:00
Dale Johannesen
58c2e4c5fd
Fix mod so it actually works. Fix conversions to
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native types to handle denormals correctly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41726 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-05 20:39:49 +00:00
Dale Johannesen
e15c2db993
Oops, should be part of 41664; won't work very well without this piece.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41665 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-31 23:35:31 +00:00
Dale Johannesen
eaf089430e
Enhance APFloat to retain bits of NaNs (fixes oggenc).
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Use APFloat interfaces for more references, mostly
of ConstantFPSDNode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41632 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-31 04:03:46 +00:00
Dale Johannesen
f04afdbb48
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41587 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-30 00:23:21 +00:00
Dale Johannesen
12595d7b16
Poison APFloat::operator==. Replace existing uses with bitwiseIsEqual.
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This means backing out the preceding change to Constants.cpp, alas.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41378 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-24 22:09:56 +00:00
Dale Johannesen
d3b51fd170
Revised per review feedback from previous patch.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41353 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-24 05:08:11 +00:00
Chris Lattner
ada530b4f5
silence some warnings in an optimized build.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41352 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-24 03:02:34 +00:00
Dale Johannesen
343e770983
Change internal representation of ConstantFP to use APFloat.
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Interface to rest of the compiler unchanged, as yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41348 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-24 00:56:33 +00:00
Chris Lattner
b39cdde41d
initial checkin of Neil's APFloat work.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41203 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-20 22:49:32 +00:00