Make a single `NoFPElim' switch available to all targets.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14296 91177308-0d34-0410-b5e6-96231b3b80d8

* Make indentation consistent at 2 chars
* Doxygenify function comments
* Wrap code at 80 cols

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14295 91177308-0d34-0410-b5e6-96231b3b80d8

This file is no longer applicable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14294 91177308-0d34-0410-b5e6-96231b3b80d8

Let's be consistent: listing format `os/arch'.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14293 91177308-0d34-0410-b5e6-96231b3b80d8

llvm/IntrinsicLowering.h => llvm/CodeGen/IntrinsicLowering.h

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14292 91177308-0d34-0410-b5e6-96231b3b80d8

Handle shifts >= 32 bits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14291 91177308-0d34-0410-b5e6-96231b3b80d8

Intrinsic::isnan has gone away, support for it commented out.
Intrinsic::isunordered has arrived, and we just use the standard lowering
pass for it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14290 91177308-0d34-0410-b5e6-96231b3b80d8

Convert tabs to spaces.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14289 91177308-0d34-0410-b5e6-96231b3b80d8

Type::getPrimitiveID() -> getTypeID()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14288 91177308-0d34-0410-b5e6-96231b3b80d8

Type::getPrimitiveID() -> getTypeID()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14287 91177308-0d34-0410-b5e6-96231b3b80d8

Initial revision

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14283 91177308-0d34-0410-b5e6-96231b3b80d8

Mention the requirement of dlcompat for MacOS X.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14282 91177308-0d34-0410-b5e6-96231b3b80d8

Rename Interval class to LiveInterval to avoid conflicting with the already
existing llvm::Interval class.

Patch contributed by Vladimir Prus!
http://mail.cs.uiuc.edu/pipermail/llvmbugs/2004-June/000710.html

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14281 91177308-0d34-0410-b5e6-96231b3b80d8

Make ConstantBool act like a 1 bit ConstantInt, in order to simplify client
code.  Patch contributed by Vladimir Prus.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14280 91177308-0d34-0410-b5e6-96231b3b80d8

Nullify this test as it causes infinite loop in optimized nightly test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14279 91177308-0d34-0410-b5e6-96231b3b80d8

*FINALLY* Fix a really nasty nondeterministic bug that has been haunting us
since May 1st.  In this code, the pred iterator was being invalidated sometimes
causing the wrong entries to be added to PHI nodes.

The fix for this is to defererence and safe the *PI value before we hack on
branch instructions, which changes use/def chains, which SOMETIMES invalidates
the iterator.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14278 91177308-0d34-0410-b5e6-96231b3b80d8

Comment out the isnan stuff until we get a proper autoconf test for it
breaking the build on sparc is not acceptable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14277 91177308-0d34-0410-b5e6-96231b3b80d8

Make order of argument addition deterministic.  In particular, the layout
of ConstantInt objects in memory used to determine which order arguments
were added in in some cases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14276 91177308-0d34-0410-b5e6-96231b3b80d8

REALLY fix PR378: crash in scalar evolution analysis

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14275 91177308-0d34-0410-b5e6-96231b3b80d8

Added a note about requiring QMTest 2.0.3 instead of any other version.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14274 91177308-0d34-0410-b5e6-96231b3b80d8

Bug fixed

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14273 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a bug in my change last night that caused a few test failures.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14270 91177308-0d34-0410-b5e6-96231b3b80d8

IntrinsicLowering.cpp now lives in lib/CodeGen/

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14269 91177308-0d34-0410-b5e6-96231b3b80d8

Update path

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14268 91177308-0d34-0410-b5e6-96231b3b80d8

Header moved into the CodeGen directory

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14267 91177308-0d34-0410-b5e6-96231b3b80d8

Move the IntrinsicLowering header into the CodeGen directory, as per PR346

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14266 91177308-0d34-0410-b5e6-96231b3b80d8

Move the IntrinsicLowering header into the CodeGen directory

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14265 91177308-0d34-0410-b5e6-96231b3b80d8

Start moving IntrinsicLowering out of VMCore into libcodegen, as per PR346

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14264 91177308-0d34-0410-b5e6-96231b3b80d8

Do not sort SCEV objects by address: instead sort by complexity and group
by address.  This prevents the resultant SCEV objects from depending on
where in memory other scev objects happen to live.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14263 91177308-0d34-0410-b5e6-96231b3b80d8

Make use of BinaryOperator::create* methods to shrinkify code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14262 91177308-0d34-0410-b5e6-96231b3b80d8

Add methods like BinaryOperator::createAdd that take an instruction to insert
before.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14261 91177308-0d34-0410-b5e6-96231b3b80d8

Fix the inliner to be deterministic, not letting its output depend on the
relative location of Function objects in memory.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14260 91177308-0d34-0410-b5e6-96231b3b80d8

Make fpcmp handle running off of the beginning or end of the file correctly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14259 91177308-0d34-0410-b5e6-96231b3b80d8

Add some DEBUG output to the simplifycfg routines
Fix another non-deterministic behavior, this one should actually speed up the
code though as it was doing silly things.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14258 91177308-0d34-0410-b5e6-96231b3b80d8

A utility to search the LLVM source tree for a grep pattern. This is a
replacement for getsrcs.sh which now generates too much text to put on a
Linux command line. The approach taken with llvmgrep is to execute a find
command and execute a grep on each file that matches the name pattern. The
arguments to this script are the same as those of egrep. Note that the -H
and -n options to egrep will always be passed so that you always get the
file and line number of matches.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14255 91177308-0d34-0410-b5e6-96231b3b80d8

Now that dominator tree children are built in determinstic order, this horrible code
can go away

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14254 91177308-0d34-0410-b5e6-96231b3b80d8

compute dominator tree children in a deterministic order that does not depend
on the address of BasicBlock objects in memory.  This eliminates stuff like this:

 Inorder Dominator Tree:
   [1]  %entry
     [2]  %loopentry
-      [3]  %loopexit
       [3]  %no_exit
-        [4]  %endif
         [4]  %then
+        [4]  %endif
+      [3]  %loopexit
       [3]  %return

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14253 91177308-0d34-0410-b5e6-96231b3b80d8

Print out immediate dominators in program order, not in random order based on the address
of BasicBlock objects

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14252 91177308-0d34-0410-b5e6-96231b3b80d8

This will hopefully fix a heisenbug that Vladimir Merzliakov is running
into valiantly trying to compile stuff on freebsd.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14251 91177308-0d34-0410-b5e6-96231b3b80d8

Add a note about GCC 3.3.2 optimization bug that causes llc to spin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14250 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a nasty bug, noticed by Reid

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14249 91177308-0d34-0410-b5e6-96231b3b80d8

Fix one source of nondeterminism in the -licm pass: the hoist pass
was processing blocks in whatever order they happened to end up in the
dominator tree data structure.  Force an ordering.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14248 91177308-0d34-0410-b5e6-96231b3b80d8

Change to use the StableBasicBlockNumbering class

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14247 91177308-0d34-0410-b5e6-96231b3b80d8

Initial checkin of the StableBasicBlockNumbering, a little helper class for computing
(strangely enough) a stable (determinstic) numbering for basic blocks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14246 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a tiny bug in the -no-aa pass, in which it did not ever get a target data.
This is a regression from 1.2, though noone uses -no-aa anyway

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14245 91177308-0d34-0410-b5e6-96231b3b80d8

Do not let the numbering of PHI nodes placed in the function depend on
non-deterministic things like the ordering of blocks in the dominance
frontier of a BB.  Unfortunately, I don't know of a better way to solve
this problem than to explicitly sort the BB's in function-order before
processing them.  This is guaranteed to slow the pass down a bit, but
is absolutely necessary to get usable diffs between two different tools
executing the mem2reg or scalarrepl pass.

Before this, bazillions of spurious diff failures occurred all over the
place due to the different order of processing PHIs:

-       %tmp.111 = getelementptr %struct.Connector_struct* %upcon.0.0, uint 0, uint 0
+       %tmp.111 = getelementptr %struct.Connector_struct* %upcon.0.1, uint 0, uint 0

Now, the diffs match.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14244 91177308-0d34-0410-b5e6-96231b3b80d8

Do not sort by the address of LLVM ConstantInt* objects.  This produces
nondeterministic results that depend on where these objects land in memory.
Instead, sort by the value of the constant, which is stable.

Before this patch, the -simplifycfg pass run from two different compilers
could cause different code to be generated, though it was semantically the
same:

@@ -12258,8 +12258,8 @@
        %s_addr.1 = phi sbyte* [ %s, %entry ], [ %inc.0, %no_exit ]             ; <sbyte*> [#uses=5]
        %tmp.1 = load sbyte* %s_addr.1          ; <sbyte> [#uses=1]
        switch sbyte %tmp.1, label %no_exit [
-                sbyte 0, label %loopexit
                 sbyte 46, label %loopexit
+                sbyte 0, label %loopexit
        ]

We need to stomp all of this stuff out.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14243 91177308-0d34-0410-b5e6-96231b3b80d8

Do not loop over uses as we delete them.  This causes iterators to be
invalidated out from under us.  This bug goes back to revision 1.1: scary.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14242 91177308-0d34-0410-b5e6-96231b3b80d8

Bug fixed

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14241 91177308-0d34-0410-b5e6-96231b3b80d8

Test for PR374

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14240 91177308-0d34-0410-b5e6-96231b3b80d8

Fix relative link to the CVS mirrors.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14239 91177308-0d34-0410-b5e6-96231b3b80d8

Add link to the CVS mirror hosted by Reid

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14238 91177308-0d34-0410-b5e6-96231b3b80d8

Add link documenting shared/static library differences across platforms.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14237 91177308-0d34-0410-b5e6-96231b3b80d8

Bug fixed

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14236 91177308-0d34-0410-b5e6-96231b3b80d8

Capitalize Cygwin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14235 91177308-0d34-0410-b5e6-96231b3b80d8

* Fix file header and name
* Order #includes alphabetically

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14234 91177308-0d34-0410-b5e6-96231b3b80d8

Use the machine-independent method of querying the page size.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14233 91177308-0d34-0410-b5e6-96231b3b80d8

Add a target-independent way to query page size.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14232 91177308-0d34-0410-b5e6-96231b3b80d8

.zero doesn't work in the Solaris assembler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14231 91177308-0d34-0410-b5e6-96231b3b80d8

Get rid of selects the easy way

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14230 91177308-0d34-0410-b5e6-96231b3b80d8

Make visitAllocaInst() look more like its X86 counterpart.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14229 91177308-0d34-0410-b5e6-96231b3b80d8

Mess around with allocation order. In particular, I think we ought to be
using the local & in regs first because they are not clobbered by calls.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14228 91177308-0d34-0410-b5e6-96231b3b80d8

JMPL has a delay slot.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14227 91177308-0d34-0410-b5e6-96231b3b80d8

Clean up the commented-out F3_3 stuff.
Replace it with a working class for FP instrs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14226 91177308-0d34-0410-b5e6-96231b3b80d8

Fix jmpl.
Add some FP moves.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14225 91177308-0d34-0410-b5e6-96231b3b80d8

Support printing base+offset pairs where the offset is a register.
Use this for printing the jmpl indirect-call instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14224 91177308-0d34-0410-b5e6-96231b3b80d8

Support intrinsic calls (although no particular intrinsics are supported yet).
Support indirect calls.
Support returning a float value.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14223 91177308-0d34-0410-b5e6-96231b3b80d8

Calls to __builtin_isunordered and friends no longer cause llvmgcc to ICE.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14222 91177308-0d34-0410-b5e6-96231b3b80d8

Implement Transforms/InstCombine/and.ll:test17, a common case that
occurs due to unordered comparison macros in math.h

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14221 91177308-0d34-0410-b5e6-96231b3b80d8

New test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14220 91177308-0d34-0410-b5e6-96231b3b80d8

Do not function resolve intrinsics.  This prevents warnings and possible bad
things from happening due to

declare bool %llvm.isunordered(double, double)
declare bool %llvm.isunordered(float, float)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14219 91177308-0d34-0410-b5e6-96231b3b80d8

Test that C99 unordered comparison functions are not being turned into libc calls

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14218 91177308-0d34-0410-b5e6-96231b3b80d8

Add load instructions for floating-point registers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14217 91177308-0d34-0410-b5e6-96231b3b80d8

Support alloca instructions.
Support copying floating-point constants to registers.
Add assertion to visitCallInst to abort if we hit a NULL calledFunction, for now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14216 91177308-0d34-0410-b5e6-96231b3b80d8

Fix printing of Argument objects, problem found by Patrick Meredith

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14215 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase for GCC unordered comparison builtins

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14214 91177308-0d34-0410-b5e6-96231b3b80d8

Codegen sub C, X a little bit better for register pressure.  Instead of

mov REG, C
sub REG, X

generate:

neg X
add X, C

which uses one less reg

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14213 91177308-0d34-0410-b5e6-96231b3b80d8

Fold setcc instructions into select and branches that are not in the same BB as
the setcc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14212 91177308-0d34-0410-b5e6-96231b3b80d8

Make storeRegToStackSlot slightly shorter.
Make copyRegToReg return 1 instead of -1.
Edit a comment in emitPrologue().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14211 91177308-0d34-0410-b5e6-96231b3b80d8

Set the isBranch and isTerminator flags on branch instructions correctly.
Add a FIXME about the (currently unused) JMPL instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14210 91177308-0d34-0410-b5e6-96231b3b80d8

Emit stores correctly; don't fail an assertion.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14209 91177308-0d34-0410-b5e6-96231b3b80d8

Support generating machine instructions for Phi nodes (based on x86, but with
modifications for 1 LLVM BB --> many MBBs).
Fix store operand order: make it always be Base, Offset, SrcReg (think
"[ Base + Offset ] = SrcReg").
Rewrite visitBranchInst() to be even dumber (but working) -- give up on
the branch fallthrough trick, for the time being.
Make visitSetCondInst() work.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14208 91177308-0d34-0410-b5e6-96231b3b80d8

Recognize more branches.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14207 91177308-0d34-0410-b5e6-96231b3b80d8

I love the smell of a freshly broken PowerPC build in the morning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14206 91177308-0d34-0410-b5e6-96231b3b80d8

Make debugging dumps w/ multiple MachineBBs for a given LLVM BB readable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14205 91177308-0d34-0410-b5e6-96231b3b80d8

Do not fold loads into instructions if it is used more than once.  In particular
we do not want to fold the load in cases like this:

  X = load
    = add A, X
    = add B, X

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14204 91177308-0d34-0410-b5e6-96231b3b80d8

Fix compilation problem on freebsd.  Problem noted by Vladimir Merzliakov in
PR371

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14203 91177308-0d34-0410-b5e6-96231b3b80d8

Use addGlobalAddress and addMBB for call & branch targets instead of addPCDisp.
Abort if we see a PCRelativeDisp MachineOperand, to be safe. This matches
the X86 backend.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14202 91177308-0d34-0410-b5e6-96231b3b80d8

Rename Type::PrimitiveID to TypeId and ::getPrimitiveID() to ::getTypeID()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14201 91177308-0d34-0410-b5e6-96231b3b80d8

Rename Type::PrimitiveID to TypeId and ::getPrimitiveID() to ::getTypeID()
Delete two functions that are now methods on the Type class

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14200 91177308-0d34-0410-b5e6-96231b3b80d8

Minor cleanup

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14199 91177308-0d34-0410-b5e6-96231b3b80d8

Make header comment fit within 80 cols.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14198 91177308-0d34-0410-b5e6-96231b3b80d8

Since the Great LLVM Tool Renaming(tm), we no longer have collisions between our
assembler/linker and the system equivalents.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14197 91177308-0d34-0410-b5e6-96231b3b80d8

Fix typo in DEBUG printout.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14196 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a recent regression in Applications/sgefa that Alkis pointed out to me.
The vector may actually be empty if the register that we are marking as
recently used is not actually allocatable.  This happens for physical registers
that are not allocatable, like the ST(x) registers on X86.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14195 91177308-0d34-0410-b5e6-96231b3b80d8

Add int ferror(FILE *)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14194 91177308-0d34-0410-b5e6-96231b3b80d8

I'm afraid this doesn't exist.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14193 91177308-0d34-0410-b5e6-96231b3b80d8

Um, did someone make a typo or something?

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14192 91177308-0d34-0410-b5e6-96231b3b80d8

isnan is dead

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14191 91177308-0d34-0410-b5e6-96231b3b80d8

llvm.isnan is dead, long live llvm.isunordered!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14190 91177308-0d34-0410-b5e6-96231b3b80d8