darwin doesn't support .bss, but it does have .zerofill

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33303 91177308-0d34-0410-b5e6-96231b3b80d8

add new directive

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33302 91177308-0d34-0410-b5e6-96231b3b80d8

document that BSSSection can be null.
Add new ZeroFillDirective directive.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33301 91177308-0d34-0410-b5e6-96231b3b80d8

Document flag

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33300 91177308-0d34-0410-b5e6-96231b3b80d8

* Fix one more bug in PIC codegen: extra load is needed for *all*
non-statics.
* Introduce new option to output zero-initialized data to .bss section.
This can reduce size of binaries. Enable it by default for ELF &
Cygwin/Mingw targets. Probably, Darwin should be also added.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33299 91177308-0d34-0410-b5e6-96231b3b80d8

Revert patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33298 91177308-0d34-0410-b5e6-96231b3b80d8

The Regression directory is now gone.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33297 91177308-0d34-0410-b5e6-96231b3b80d8

Regression is gone, don't try to find it on clean target.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33296 91177308-0d34-0410-b5e6-96231b3b80d8

Make tblgen error more useful.  Patch by B. Scott Michel

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33295 91177308-0d34-0410-b5e6-96231b3b80d8

make doxygen comment much better.  Patch by B. Scott Michel!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33294 91177308-0d34-0410-b5e6-96231b3b80d8

Update for changes in location of Stacker.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33293 91177308-0d34-0410-b5e6-96231b3b80d8

remove obsolete comment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33292 91177308-0d34-0410-b5e6-96231b3b80d8

Create the specified TargetObjInfo and use it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33291 91177308-0d34-0410-b5e6-96231b3b80d8

Create/store/and delete the TargetObjInfo object.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33290 91177308-0d34-0410-b5e6-96231b3b80d8

Use the methods in the TargetObjInfo object instead of internal methods.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33289 91177308-0d34-0410-b5e6-96231b3b80d8

The TargetObjInfo object goes here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33288 91177308-0d34-0410-b5e6-96231b3b80d8

Removed methods which are now in the respective TargetObjInfo implementations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33287 91177308-0d34-0410-b5e6-96231b3b80d8

New "TargetObjInfo" class. This holds information that the object writers will
use to write things to the file. It's abstract so each target should implement
its own version for each writer type.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33286 91177308-0d34-0410-b5e6-96231b3b80d8

Fix this tool for use on Darwin which requires the file to come after the
commands. Linux is more forgiving.

Patch by Gordon Henriksen. Thanks, Gordon!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33285 91177308-0d34-0410-b5e6-96231b3b80d8

Regenerate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33284 91177308-0d34-0410-b5e6-96231b3b80d8

For PR1117:
Make the assembler generate a nice error message if a bad cast instruction
is attempted instead of asserting out. This is made possible by the
recently exposed method CastInst::castIsValid() which checks the validity
of any cast instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33283 91177308-0d34-0410-b5e6-96231b3b80d8

For PR1117:
Expose the previously hidden checkCast function as CastInst::castIsValid.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33282 91177308-0d34-0410-b5e6-96231b3b80d8

Test cases for PR1117.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33281 91177308-0d34-0410-b5e6-96231b3b80d8

For PR1094:
Adjust the use of SetVector for changes in SetVector's interface.
Patch by Gordon Henriksen.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33280 91177308-0d34-0410-b5e6-96231b3b80d8

For PR1094:
Make the SetVector::iterator be the vector's const_iterator.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33279 91177308-0d34-0410-b5e6-96231b3b80d8

For PR1074:
Remove the projects/Stacker directory. LLVM is now free of dependency
on llvm-gcc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33278 91177308-0d34-0410-b5e6-96231b3b80d8

For PR1074:
Adjust configuration for Stacker's new name: llvm-stacker.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33277 91177308-0d34-0410-b5e6-96231b3b80d8

Remove unused forward class declarations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33276 91177308-0d34-0410-b5e6-96231b3b80d8

Ignore the output directory.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33275 91177308-0d34-0410-b5e6-96231b3b80d8

Join two lines that caused awk to squak on some platforms.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33274 91177308-0d34-0410-b5e6-96231b3b80d8

Pass manager may require certain analysis. In such cases, initially
pass manager is last user.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33273 91177308-0d34-0410-b5e6-96231b3b80d8

Fix test cases. Patch by Guoling Han.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33272 91177308-0d34-0410-b5e6-96231b3b80d8

Remove this test case. LLVM doesn't currently support comparison of packed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33271 91177308-0d34-0410-b5e6-96231b3b80d8

Undo last check-in.
Remove setupPassManager() and its use.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33270 91177308-0d34-0410-b5e6-96231b3b80d8

Missed "<" :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33265 91177308-0d34-0410-b5e6-96231b3b80d8

Setup pass manager before scheduling required analysis.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33262 91177308-0d34-0410-b5e6-96231b3b80d8

Add a test case for bit accurate integer types in llvm-gcc. This is
XFAILed for now until llvm-gcc changes are committed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33261 91177308-0d34-0410-b5e6-96231b3b80d8

Cleanup. Comments added.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33260 91177308-0d34-0410-b5e6-96231b3b80d8

New test cases for bit accurate integers developed by Guoling Han.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33259 91177308-0d34-0410-b5e6-96231b3b80d8

Fix SMG2000 with the CBE: opaque types need names too.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33258 91177308-0d34-0410-b5e6-96231b3b80d8

document some subtlety

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33257 91177308-0d34-0410-b5e6-96231b3b80d8

Emit symbol type information for ELF/COFF targets

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33256 91177308-0d34-0410-b5e6-96231b3b80d8

Instead of yet another enum indicating the "assembly language flavor",
just use the one that's in the subtarget.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33255 91177308-0d34-0410-b5e6-96231b3b80d8

Fix PR918 by only using typedefs to name struct types.  This makes the later
type ordering stuff work better.  This fixes PR918 and
CodeGen/CBackend/2007-01-15-NamedArrayType.ll

Patch by Gordon Henriksen.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33254 91177308-0d34-0410-b5e6-96231b3b80d8

testcase for PR918

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33253 91177308-0d34-0410-b5e6-96231b3b80d8

add a note: we need whole-function selectiondags :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33252 91177308-0d34-0410-b5e6-96231b3b80d8

Fix PR1114 and CodeGen/Generic/2007-01-15-LoadSelectCycle.ll by being
careful when folding "c ? load p : load q" that C doesn't reach either load.
If so, folding this into load (c ? p : q) will induce a cycle in the graph.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33251 91177308-0d34-0410-b5e6-96231b3b80d8

new testcase for PR1114

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33250 91177308-0d34-0410-b5e6-96231b3b80d8

add options to view the dags before the first or second pass of dag combine.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33249 91177308-0d34-0410-b5e6-96231b3b80d8

Added a -mtriple flag to force darwin backend.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33248 91177308-0d34-0410-b5e6-96231b3b80d8

Make inline ASM the INTEL one if it's in that emission mode.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33247 91177308-0d34-0410-b5e6-96231b3b80d8

Fix for PR1095:
LLVM would miscompile ASM dialects when compiling for PPC. Added dialects for
the X86 and PPC backends. It defaults to "0", the first variant of a compound
inline asm expression.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33246 91177308-0d34-0410-b5e6-96231b3b80d8

Code refactoring.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33245 91177308-0d34-0410-b5e6-96231b3b80d8

Remove extra white spaces. Fix comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33244 91177308-0d34-0410-b5e6-96231b3b80d8

Do not record last users of Pass Manager.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33243 91177308-0d34-0410-b5e6-96231b3b80d8

Unbreak VC++ build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33242 91177308-0d34-0410-b5e6-96231b3b80d8

test darwin too! :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33241 91177308-0d34-0410-b5e6-96231b3b80d8

One more @ to remove.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33240 91177308-0d34-0410-b5e6-96231b3b80d8

make this more efficient in release builds (time and space)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33239 91177308-0d34-0410-b5e6-96231b3b80d8

Update documentation for parameter attributes for the syntax change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33238 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a regression in my isIntegral patch that broke 471.omnetpp.  This is
because TargetData::getTypeSize() returns the same for i1 and i8.  This fix
is not right for the full generality of bitwise types, but it fixes the
regression.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33237 91177308-0d34-0410-b5e6-96231b3b80d8

Don't print address of ETNode. Print the DFSNumIn which uniquely identifies
the basic block and is stable across runs in gdb or valgrind.

Make Node::update handle edges which dominate and are tighter than
existing edges.

Replace makeEqual's "squeeze theorem" code. Fixes miscompilation.

Gate the calls to defToOps and opsToDef. Before this, we were getting IG
edges about values which weren't even defined in the dominated area. This
reduces the size of the IG by about half.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33236 91177308-0d34-0410-b5e6-96231b3b80d8

Run an instcombine pass after inlining but before scalarrepl.  This allows
instcombine to clean up the code, which makes more code suitable for SRoA.
This helps C++ code in particular, e.g. speeding up tramp3d by 31%.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33235 91177308-0d34-0410-b5e6-96231b3b80d8

Implement InstCombine/phi.ll:test7, deletion of trivial value loops for
induction variables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33234 91177308-0d34-0410-b5e6-96231b3b80d8

new testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33233 91177308-0d34-0410-b5e6-96231b3b80d8

simplify some code now that types are signless

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33232 91177308-0d34-0410-b5e6-96231b3b80d8

delete stores to allocas with one use.  This is a trivial form of DSE which
often kicks in for ?: expressions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33231 91177308-0d34-0410-b5e6-96231b3b80d8

add a simple case where instcombine can detect and remove a dead alloca

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33230 91177308-0d34-0410-b5e6-96231b3b80d8

Constant fold llvm.powi.*.  This speeds up tramp3d--v4 by 9.5%

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33229 91177308-0d34-0410-b5e6-96231b3b80d8

add some notes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33228 91177308-0d34-0410-b5e6-96231b3b80d8

Regenerate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33227 91177308-0d34-0410-b5e6-96231b3b80d8

For PR1113:
Increment the counter after the second use, not after the first use. This
fixes PR1113.

Also, rename some classes for simplicity and to more naturally be
reminscient of LLVM 1.9. This in preparation for additional classes that
will provide a scaled down model of the LLVM 1.9 IR.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33226 91177308-0d34-0410-b5e6-96231b3b80d8

rename Type::isIntegral to Type::isInteger, eliminating the old Type::isInteger.
rename Type::getIntegralTypeMask to Type::getIntegerTypeMask.

This makes naming much more consistent.  For example, there are now no longer any
instances of IntegerType that are not considered isInteger! :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33225 91177308-0d34-0410-b5e6-96231b3b80d8

regenerate

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33224 91177308-0d34-0410-b5e6-96231b3b80d8

teach VMCore to accept i1 add's and shifts

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33223 91177308-0d34-0410-b5e6-96231b3b80d8

eliminate calls to Type::isInteger, preferring isIntegral instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33222 91177308-0d34-0410-b5e6-96231b3b80d8

allow i1 to operators like shift and add.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33221 91177308-0d34-0410-b5e6-96231b3b80d8

Update code to eliminate calls to isInteger, calling isIntegral instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33220 91177308-0d34-0410-b5e6-96231b3b80d8

Change to match API changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33219 91177308-0d34-0410-b5e6-96231b3b80d8

Eliminate calls to isInteger, generalizing code and tightening checks as needed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33218 91177308-0d34-0410-b5e6-96231b3b80d8

Terminology change: drop 'integral' completely.  Now we just have integer,
which includes i1.  Change the semantics of the various instructions to
support i1 where they didn't before: for example, it is now legal [though
not terribly useful, as it is the same as xor] to add two i1 values.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33217 91177308-0d34-0410-b5e6-96231b3b80d8

Make use of isInteger vs isIntegral more explicit

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33216 91177308-0d34-0410-b5e6-96231b3b80d8

ensure these don't xpass if opt crashes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33215 91177308-0d34-0410-b5e6-96231b3b80d8

Fix correlated exprs regressions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33214 91177308-0d34-0410-b5e6-96231b3b80d8

don't discriminate against i1

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33213 91177308-0d34-0410-b5e6-96231b3b80d8

Regenerate

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33212 91177308-0d34-0410-b5e6-96231b3b80d8

Reorganize things a bit in preparation for rewrite. Although this looks
like a lot, its really only two changes:

1. Move stuff that should be private to .y out of the .h file.
2. Make all semantic values pointers.

This cleans up the silly destroy methods and changes them to delete. It
also moves the TypeInfo and ValueInfo classes into the .y where we can
modify them more readily because they have no clients any more.

This shouldn't result in any functional changes in llvm-upgrade.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33211 91177308-0d34-0410-b5e6-96231b3b80d8

Fix Analysis/Dominators/2006-10-02-BreakCritEdges.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33210 91177308-0d34-0410-b5e6-96231b3b80d8

Primitive types don't include integers any more, adjust.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33209 91177308-0d34-0410-b5e6-96231b3b80d8

instcombine has always been miscompiling fcmp x, x, disregarding possible
NANs.  This fixes PR1111 and Transforms/InstCombine/2007-01-14-FcmpSelf.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33208 91177308-0d34-0410-b5e6-96231b3b80d8

add accessors

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33207 91177308-0d34-0410-b5e6-96231b3b80d8

new testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33206 91177308-0d34-0410-b5e6-96231b3b80d8

verify that hidden visibility support never goes away

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33205 91177308-0d34-0410-b5e6-96231b3b80d8

Fix PR1110 and Analysis/Dominators/2007-01-14-BreakCritEdges.ll by being
more careful about unreachable code when updating dominator info.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33204 91177308-0d34-0410-b5e6-96231b3b80d8

testcase for pr1110

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33203 91177308-0d34-0410-b5e6-96231b3b80d8

No hidden visiblity on Mingw32/Cygwin

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33202 91177308-0d34-0410-b5e6-96231b3b80d8

clarify linkonce/weak linkage

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33201 91177308-0d34-0410-b5e6-96231b3b80d8

add support for hidden visibility to darwin/ppc and linux/ppc targets

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33200 91177308-0d34-0410-b5e6-96231b3b80d8

Fix an incorrect conversion of int -> i32

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33199 91177308-0d34-0410-b5e6-96231b3b80d8

add support for hidden visibility to darwin/x86

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33198 91177308-0d34-0410-b5e6-96231b3b80d8