op_iterator-ify some loops, fix 80col violations

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52226 91177308-0d34-0410-b5e6-96231b3b80d8

Properly lower DYNAMIC_STACKALLOC - bracket all black magic with
CALLSEQ_BEGIN & CALLSEQ_END.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52225 91177308-0d34-0410-b5e6-96231b3b80d8

For now, avoid generating FP select instructions in order to speculatively execute integer arithmetic instructions. FP selects are more likely to be expensive (even compared to branch on fcmp). This is not a wonderful solution but I rather err on the side of conservative.

This fixes the heapsort performance regressions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52224 91177308-0d34-0410-b5e6-96231b3b80d8

Avoid duplicating loop header which leads to unnatural loops (and just seem like general badness to me, likely to cause code explosion).
Patch by Florian Brandner.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52223 91177308-0d34-0410-b5e6-96231b3b80d8

Don't send checkpoints to stderr for the vmcore.ml test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52218 91177308-0d34-0410-b5e6-96231b3b80d8

Teach instruction combining about the extractvalue. It can succesfully fold
useless insert-extract chains, similar to how it folds them for vectors.

Add a testcase for this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52217 91177308-0d34-0410-b5e6-96231b3b80d8

remove bogus comment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52216 91177308-0d34-0410-b5e6-96231b3b80d8

op_iterator-ify dropAllReferences

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52215 91177308-0d34-0410-b5e6-96231b3b80d8

Sometimes (rarely) nodes held in LegalizeTypes
maps can be deleted.  This happens when RAUW
replaces a node N with another equivalent node
E, deleting the first node.  Solve this by
adding (N, E) to ReplacedNodes, which is already
used to remap nodes to replacements.  This means
that deleted nodes are being allowed in maps,
which can be delicate: the memory may be reused
for a new node which might get confused with the
old deleted node pointer hanging around in the
maps, so detect this and flush out maps if it
occurs (ExpungeNode).  The expunging operation
is expensive, however it never occurs during
a llvm-gcc bootstrap or anywhere in the nightly
testsuite.  It occurs three times in "make check":
Alpha/illegal-element-type.ll,
PowerPC/illegal-element-type.ll and
X86/mmx-shift.ll.  If expunging proves to be too
expensive then there are other more complicated
ways of solving the problem.
In the normal case this patch adds the overhead
of a few more map lookups, which is hopefully
negligable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52214 91177308-0d34-0410-b5e6-96231b3b80d8

Better test for availability of __gnu_cxx::stdio_filebuf.
If this doesn't work, I'll write a configure test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52213 91177308-0d34-0410-b5e6-96231b3b80d8

Clarify a comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52212 91177308-0d34-0410-b5e6-96231b3b80d8

op_iterator-ify loops

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52191 91177308-0d34-0410-b5e6-96231b3b80d8

Small doc fix.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52190 91177308-0d34-0410-b5e6-96231b3b80d8

Use %link not %llvmgxx (which includes -c) to do the link.
The test still fails because an expected symbol is not
present, and I don't see why it should be.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52188 91177308-0d34-0410-b5e6-96231b3b80d8

Suppress ObjC FE warnings, which cause the test to fail.
Warnings are legitimate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52187 91177308-0d34-0410-b5e6-96231b3b80d8

Add -w to inhibit gcc warnings, which causes the
harness to fail the tests.  The warning all appear
legitimate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52186 91177308-0d34-0410-b5e6-96231b3b80d8

Fix parameter spelling:  sse not sse1

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52185 91177308-0d34-0410-b5e6-96231b3b80d8

Ignore stderr for some more tests that expect warnings there.

This fixes 2 testcases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52184 91177308-0d34-0410-b5e6-96231b3b80d8

Fix some more quoting issues in RUN lines, this time regarding unintended
variable expansions involving the $ character.

This fixes 4 tests that were not running properly before.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52183 91177308-0d34-0410-b5e6-96231b3b80d8

Fix some escaping and quoting in RUN lines, mainly involving { and <. In two
cases quoting of <{ didn't work out, so I changed the grep to check for }>
instead.

This fixes 7 testcases that were not properly running before.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52182 91177308-0d34-0410-b5e6-96231b3b80d8

Remove double pipes in RUN commandlines.

This fixes 5 testcases that were not being run properly before.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52180 91177308-0d34-0410-b5e6-96231b3b80d8

Remove trailing whitespace after line continuations in test cases to them work.

This fixes two test cases that were not being run properly before.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52179 91177308-0d34-0410-b5e6-96231b3b80d8

Let some more tests ignore expected output on stderr.
Also, use > %t instead of -o %t for output in one test since that also works
when %t already exists.

This fixes 6 testcases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52178 91177308-0d34-0410-b5e6-96231b3b80d8

Remove some debug output from tblgen. This fixes a test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52177 91177308-0d34-0410-b5e6-96231b3b80d8

Fix some llvm-gcc warnings in testcases, mostly by adding includes or adding
declarations. These are the fixes that I was pretty confident about, there are
still a lot of other llvm-gcc warnings of which I'm not sure if they can be
safely ignored or fixed, without breaking the test case.

This fixes 11 testcases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52176 91177308-0d34-0410-b5e6-96231b3b80d8

For all RUN lines starting with "not", redirect stderr to /dev/null so tests
don't fail when (expected) error output is produced. This fixes 17 tests.

While I was there, I also made all RUN lines of the form "not llvm-as..." a bit
more consistent, they now all redirect stderr and stdout to /dev/null and use
input redirect to read their input.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52174 91177308-0d34-0410-b5e6-96231b3b80d8

Suppress the (stderr) output of -aa-eval, this fixes 5 tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52173 91177308-0d34-0410-b5e6-96231b3b80d8

Change llvm.exp so it no longer ignores some errors when executing dejagnu
tests. This breaks 80 tests in the tree.

The interesting part here is that this no longer ignores syntax errors
in RUN command lines. Some tests have not been working all the time because of
this.

The tricky part is that it now also views any stderr output as an error. This
can be suppressed in tcl 8.5, but let's not add this dependency. Instead, all
testcases should be changed to redirect stderr if they expect stderr output.
This holds in particular for lines like:
  ; RUN: not llvm-as < %s
where an error is expected (but I think I can solve this by modifying the not
script). Also, compilations resulting in warnings will now also fail (so
the warnings should be fixed, disabled or redirected...).

I'll continue with fixing the testcases that are broken now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52172 91177308-0d34-0410-b5e6-96231b3b80d8

adjust calls to ConstantFP::get to new API

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52165 91177308-0d34-0410-b5e6-96231b3b80d8

Convert several tests to use temporary files instead of redundantly
executing the test commands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52163 91177308-0d34-0410-b5e6-96231b3b80d8

Fix two more not-grep tests that were missing llvm-dis.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52159 91177308-0d34-0410-b5e6-96231b3b80d8

Teach isGAPlusOffset to respect a GlobalAddressSDNode's offset
value, which is something that apparently isn't used much.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52158 91177308-0d34-0410-b5e6-96231b3b80d8

Re-apply 52002, allowing the verifier to accept non-MRV struct return
types on functions, with adjustments so that it accepts both
new-style aggregate returns and old-style MRV returns, including those
with only a single member.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52157 91177308-0d34-0410-b5e6-96231b3b80d8

CodeGen support for aggregate-value function arguments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52156 91177308-0d34-0410-b5e6-96231b3b80d8

Update the build instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52153 91177308-0d34-0410-b5e6-96231b3b80d8

Various tweaks related to apint codegen.  No functionality
change for non-funky-sized integers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52151 91177308-0d34-0410-b5e6-96231b3b80d8

Handle empty aggregate values.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52150 91177308-0d34-0410-b5e6-96231b3b80d8

AsmParser support for immediate constant aggregate values.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52149 91177308-0d34-0410-b5e6-96231b3b80d8

CPPBackend support for extractvalue and insertvalue.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52147 91177308-0d34-0410-b5e6-96231b3b80d8

Abort on an unrecognized opcode.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52146 91177308-0d34-0410-b5e6-96231b3b80d8

Update the CPP backend for the ConstantFP::get API change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52144 91177308-0d34-0410-b5e6-96231b3b80d8

Remove some DAG combiner assumptions about sizes
of integer types.  Fix the isMask APInt method to
actually work (hopefully) rather than crashing
because it adds apints of different bitwidths.
It looks like isShiftedMask is also broken, but
I'm leaving that one to the APInt people (it is
not used anywhere).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52142 91177308-0d34-0410-b5e6-96231b3b80d8

Test that prune-eh doesn't make deductions based
on bodies of functions with weak linkage.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52141 91177308-0d34-0410-b5e6-96231b3b80d8

add support for PIC on linux x86-64

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52139 91177308-0d34-0410-b5e6-96231b3b80d8

lower calls to abs to inline code, PR2337

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52138 91177308-0d34-0410-b5e6-96231b3b80d8

Fix PR2411, where ip constant prop would propagate the
result of a weak function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52137 91177308-0d34-0410-b5e6-96231b3b80d8

Small formatting changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52136 91177308-0d34-0410-b5e6-96231b3b80d8

use 'continue' to make the function linker simpler.  When linking a strong
function into a weak function, zap the weak function body so that the
strong one overrides it.  This fixes PR2410

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52135 91177308-0d34-0410-b5e6-96231b3b80d8

minor changes to short circuit the 'no linkage' case earlier for
function bodies.  We now don't try to unify types or handling type
mismatches if when linking an internal foo to an external foo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52134 91177308-0d34-0410-b5e6-96231b3b80d8

simplify function visibility handling.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52133 91177308-0d34-0410-b5e6-96231b3b80d8

Create dirs as needed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52131 91177308-0d34-0410-b5e6-96231b3b80d8

removed two implicitly closed </p> tags to get it validate

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52123 91177308-0d34-0410-b5e6-96231b3b80d8

Update with new release.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52121 91177308-0d34-0410-b5e6-96231b3b80d8

Add a note in the API Changes section about the ConstantFP::get change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52119 91177308-0d34-0410-b5e6-96231b3b80d8

Use proper icon :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52118 91177308-0d34-0410-b5e6-96231b3b80d8

Fix few validations errors

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52117 91177308-0d34-0410-b5e6-96231b3b80d8

Add footer

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52116 91177308-0d34-0410-b5e6-96231b3b80d8

Remove obsolete CompilerDriver.html and provie a new one, based on autogenerated file form
LLVMC-Reference.rst

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52115 91177308-0d34-0410-b5e6-96231b3b80d8

linkify, this requires pulling CodeGenerator.html into 2.3.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52114 91177308-0d34-0410-b5e6-96231b3b80d8

Add a simple, but efficient, generic scoped hash table

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52112 91177308-0d34-0410-b5e6-96231b3b80d8

grammaro

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52111 91177308-0d34-0410-b5e6-96231b3b80d8

final edits from me, simplify the ia64 section.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52110 91177308-0d34-0410-b5e6-96231b3b80d8

more edits

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52109 91177308-0d34-0410-b5e6-96231b3b80d8

Add notes about two known X86-64 limitations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52108 91177308-0d34-0410-b5e6-96231b3b80d8

several edits

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52107 91177308-0d34-0410-b5e6-96231b3b80d8

Add some links to doxygen documentation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52106 91177308-0d34-0410-b5e6-96231b3b80d8

Describe MachineMemOperands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52105 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a grammero.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52104 91177308-0d34-0410-b5e6-96231b3b80d8

Revert a bad edit from r52095.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52103 91177308-0d34-0410-b5e6-96231b3b80d8

add vmkit and rewrite clang section

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52102 91177308-0d34-0410-b5e6-96231b3b80d8

start edits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52100 91177308-0d34-0410-b5e6-96231b3b80d8

add more notes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52099 91177308-0d34-0410-b5e6-96231b3b80d8

Remove comparison methods for MVT.  The main cause
of apint codegen failure is the DAG combiner doing
the wrong thing because it was comparing MVT's using
< rather than comparing the number of bits.  Removing
the < method makes this mistake impossible to commit.
Instead, add helper methods for comparing bits and use
them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52098 91177308-0d34-0410-b5e6-96231b3b80d8

Limit the icmp+phi merging optimization to the cases where it is profitable:
don't make i1 phis when it won't be possible to eliminate them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52097 91177308-0d34-0410-b5e6-96231b3b80d8

add some html escapes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52096 91177308-0d34-0410-b5e6-96231b3b80d8

Using llc always rather than sometimes using LLC.
Try to improve language in various places.  Use
X86 always rather than sometimes using x86.  Add
some minor Ada info.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52095 91177308-0d34-0410-b5e6-96231b3b80d8

Fix spelling.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52094 91177308-0d34-0410-b5e6-96231b3b80d8

Remove invalid test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52093 91177308-0d34-0410-b5e6-96231b3b80d8

Add win64

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52091 91177308-0d34-0410-b5e6-96231b3b80d8

This was fixed

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52090 91177308-0d34-0410-b5e6-96231b3b80d8

add some notes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52087 91177308-0d34-0410-b5e6-96231b3b80d8

Added FP instruction formats.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52086 91177308-0d34-0410-b5e6-96231b3b80d8

Temporarily reverting r52056. It's causing PPC to fail to bootstrap.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52085 91177308-0d34-0410-b5e6-96231b3b80d8

Added support for FP Registers

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52079 91177308-0d34-0410-b5e6-96231b3b80d8

Update VC project files, patch by Cédric Venet!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52077 91177308-0d34-0410-b5e6-96231b3b80d8

Speculatively execute a block when the the block is the then part of a triangle shape and it contains a single, side effect free, cheap instruction. The branch is eliminated by adding a select instruction. i.e.

Turn
BB:
    %t1 = icmp
    br i1 %t1, label %BB1, label %BB2
BB1:
    %t3 = add %t2, c
    br label BB2
BB2:
=>
BB:
    %t1 = icmp
    %t4 = add %t2, c
    %t3 = select i1 %t1, %t2, %t3

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52073 91177308-0d34-0410-b5e6-96231b3b80d8

Fix run line.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52072 91177308-0d34-0410-b5e6-96231b3b80d8

Revert r52046. It broke cbe on x86 / Mac OS X.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52071 91177308-0d34-0410-b5e6-96231b3b80d8

CodeGen support for insertvalue and extractvalue, and for loads and
stores of aggregate values.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52069 91177308-0d34-0410-b5e6-96231b3b80d8

Connect successors before creating the DAG node for the branch.  This has
no visible functionality change, but enables a future patch where node creation
will update the CFG if it decides to create an unconditional rather than a conditional branch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52067 91177308-0d34-0410-b5e6-96231b3b80d8

get rid of ExtractValueInst::init's Value argument, it is already passed to the UnaryInstruction ctor

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52064 91177308-0d34-0410-b5e6-96231b3b80d8

Typo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52062 91177308-0d34-0410-b5e6-96231b3b80d8

make ExtractValueInst derived from UnaryInstruction

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52061 91177308-0d34-0410-b5e6-96231b3b80d8

Enable stack coloring by default.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52057 91177308-0d34-0410-b5e6-96231b3b80d8

PPC preferred loop alignment is 16.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52056 91177308-0d34-0410-b5e6-96231b3b80d8

LoopSimplify preserves AA.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52053 91177308-0d34-0410-b5e6-96231b3b80d8

Print debug message only if there are dead passes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52052 91177308-0d34-0410-b5e6-96231b3b80d8

Include loop deletion and the ADCE rewrite in the release notes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52048 91177308-0d34-0410-b5e6-96231b3b80d8

Testcase for PR2418

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52047 91177308-0d34-0410-b5e6-96231b3b80d8

Handle assembler identifiers specially in CBE. This fixes PR2418.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52046 91177308-0d34-0410-b5e6-96231b3b80d8