Commit Graph

19 Commits

Author SHA1 Message Date
Duncan Sands
8991d51ddc Adding missing methods for creating Add, Mul, Neg and Sub with NUW.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95086 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02 12:53:04 +00:00
Dan Gohman
411984810e Add utility routines for NSW multiply.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91664 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-18 03:10:26 +00:00
Dan Gohman
bdc46c6af5 Add utility routines for creating integer negation operators with NSW set.
Integer negation only overflows with INT_MIN, but that's an important case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91662 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-18 02:58:50 +00:00
Daniel Dunbar
5a325e3663 Use ExtractElementInst::Create instead of new; patch by Artur Pietrek!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89606 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-22 18:27:43 +00:00
Duncan Sands
3548ea8e90 For the NSWSub support in the builder to actually be useable,
there need to be corresponding changes to the constant folders,
done in this patch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82862 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-26 15:35:35 +00:00
Dan Gohman
6e7ad95868 Revert 80959. It isn't sufficient to solve the full problem. And it
introduced regressions in the Ocaml bindings tests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80969 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-03 23:34:49 +00:00
Dan Gohman
e56a94ef91 Remove the API for creating ConstantExprs with the nsw, nuw, inbounds,
and exact flags. Because ConstantExprs are uniqued, creating an
expression with this flag causes all expressions with the same operands
to have the same flag, which may not be safe. Add, sub, mul, and sdiv
ConstantExprs are usually folded anyway, so the main interesting flag
here is inbounds, and the constant folder already knows how to set the
inbounds flag automatically in most cases, so there isn't an urgent need
for the API support.

This can be reconsidered in the future, but for now just removing these
API bits eliminates a source of potential trouble with little downside.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80959 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-03 22:17:40 +00:00
Dan Gohman
d6474fa1f1 Add convenience functions for creating nsw add operators.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78707 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-11 20:20:39 +00:00
Dan Gohman
e2574d3215 Add convenience functions for creating inbounds GEPs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78695 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-11 17:57:01 +00:00
Benjamin Kramer
12ddd40953 Make LLVMContext and LLVMContextImpl classes instead of structs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78690 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-11 17:45:13 +00:00
Benjamin Kramer
754bdacf46 Fix struct/class mismatch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78686 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-11 17:27:20 +00:00
Dan Gohman
59c4f5c2fc Add convenience functions for creating exact sdiv operators, and
use them in CreatePtrDiff.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78682 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-11 17:05:24 +00:00
Dan Gohman
7f4151bc69 ConstantFolder and NoFolder no longer require their Context members.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78673 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-11 15:56:12 +00:00
Owen Anderson
baf3c40440 Move ConstantExpr to 2.5 API.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77494 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29 18:55:55 +00:00
Owen Anderson
c7d2ce7047 Push LLVMContext through the PatternMatch API.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75255 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-10 17:35:01 +00:00
Nick Lewycky
7f6aa2b162 Remove the vicmp and vfcmp instructions. Because we never had a release with
these instructions, no autoupgrade or backwards compatibility support is
provided.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74991 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-08 03:04:38 +00:00
Dan Gohman
ae3a0be92e Split the Add, Sub, and Mul instruction opcodes into separate
integer and floating-point opcodes, introducing
FAdd, FSub, and FMul.

For now, the AsmParser, BitcodeReader, and IRBuilder all preserve
backwards compatability, and the Core LLVM APIs preserve backwards
compatibility for IR producers. Most front-ends won't need to change
immediately.

This implements the first step of the plan outlined here:
http://nondot.org/sabre/LLVMNotes/IntegerOverflow.txt


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72897 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-04 22:49:04 +00:00
Dan Gohman
5a9a4bf7f2 Fix the name of the include guard to match the filename.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58310 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-28 00:52:46 +00:00
Duncan Sands
9d8658a129 Rename this, in case people think that NullFolder
has something to do with folding null values.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54725 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-13 08:56:48 +00:00