Don't emit SAR X, 0  in the case of sdiv Y, 2

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21986 91177308-0d34-0410-b5e6-96231b3b80d8

Fix UnitTests/2005-05-13-SDivTwo.c

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21985 91177308-0d34-0410-b5e6-96231b3b80d8

switch to having the callee pop stack operands for fastcc.  This is currently buggy
do not use

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21984 91177308-0d34-0410-b5e6-96231b3b80d8

Tolerate instrs with extra args

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21982 91177308-0d34-0410-b5e6-96231b3b80d8

Add a note about SPARC V8.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21981 91177308-0d34-0410-b5e6-96231b3b80d8

allow RETI

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21980 91177308-0d34-0410-b5e6-96231b3b80d8

add support for fastcc and friends

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21979 91177308-0d34-0410-b5e6-96231b3b80d8

Minor fixes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21978 91177308-0d34-0410-b5e6-96231b3b80d8

treat TAILCALL nodes identically to CALL nodes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21977 91177308-0d34-0410-b5e6-96231b3b80d8

Build TAILCALL nodes in LowerCallTo, treat them like normal calls everywhere.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21976 91177308-0d34-0410-b5e6-96231b3b80d8

Added some missing platforms.
Fixed some wording to be more accurate (I hope).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21975 91177308-0d34-0410-b5e6-96231b3b80d8

More typo and wording fixes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21974 91177308-0d34-0410-b5e6-96231b3b80d8

Add reassociation, minor cleanups.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21973 91177308-0d34-0410-b5e6-96231b3b80d8

close off B< tag

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21972 91177308-0d34-0410-b5e6-96231b3b80d8

remove htmlisms

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21971 91177308-0d34-0410-b5e6-96231b3b80d8

fix typo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21970 91177308-0d34-0410-b5e6-96231b3b80d8

note how to disable inlining

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21969 91177308-0d34-0410-b5e6-96231b3b80d8

fix link to llvm-ar

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21968 91177308-0d34-0410-b5e6-96231b3b80d8

these don't use passes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21967 91177308-0d34-0410-b5e6-96231b3b80d8

this detail is not needed here

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21966 91177308-0d34-0410-b5e6-96231b3b80d8

update this manual

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21965 91177308-0d34-0410-b5e6-96231b3b80d8

Capitalize

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21964 91177308-0d34-0410-b5e6-96231b3b80d8

fix regression tests

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21963 91177308-0d34-0410-b5e6-96231b3b80d8

capitalize

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21962 91177308-0d34-0410-b5e6-96231b3b80d8

Minor corrections and clarifications.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21961 91177308-0d34-0410-b5e6-96231b3b80d8

clarify that these are v9 options

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21960 91177308-0d34-0410-b5e6-96231b3b80d8

hide this option

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21959 91177308-0d34-0410-b5e6-96231b3b80d8

Add an isTailCall flag to LowerCallTo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21958 91177308-0d34-0410-b5e6-96231b3b80d8

Handle TAILCALL node

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21957 91177308-0d34-0410-b5e6-96231b3b80d8

add TAILCALL node

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21956 91177308-0d34-0410-b5e6-96231b3b80d8

This passes on sparc

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21955 91177308-0d34-0410-b5e6-96231b3b80d8

* Make some warning messages stand out a bit by putting **** at the end
* Fix a typo that prevents BuildMode from being printed

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21954 91177308-0d34-0410-b5e6-96231b3b80d8

Fix the "stacker doesn't build without llvm-gcc" problem. The configure
script was defaulting the LLVMGCC variable to "llvm-gcc" if it couldn't
find llvm-gcc and --with-llvmgccdir was not specified. In this case, there
is no llvm-gcc available on the system so we shouldn't assume that the
user's path will find it any better than configure could. The fix is to
default it to an empty string. If LLVMGCC is empty, the makefiles will
avoid building things that depend on llvm-gcc and give a nice warning
message to that effect.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21953 91177308-0d34-0410-b5e6-96231b3b80d8

remove test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21952 91177308-0d34-0410-b5e6-96231b3b80d8

add 'ret imm' instruction

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21945 91177308-0d34-0410-b5e6-96231b3b80d8

The previous hack didn't work because tools-only isn't defined and isn't
a target at this level of build. There shouldn't be a problem with building
the runtime library without llvm-gcc because the Makefile.rules checks
for an empty LLVMGCC variable before building bytecode modules.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21942 91177308-0d34-0410-b5e6-96231b3b80d8

These tests are currently expected to fail.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21941 91177308-0d34-0410-b5e6-96231b3b80d8

Force x86 backend

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21940 91177308-0d34-0410-b5e6-96231b3b80d8

Realize that we don't support fmod directly, fixing CodeGen/Generic/print-arith-fp.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21939 91177308-0d34-0410-b5e6-96231b3b80d8

Don't build runtime if tools-only :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21938 91177308-0d34-0410-b5e6-96231b3b80d8

fix buggy test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21937 91177308-0d34-0410-b5e6-96231b3b80d8

Fix buggy test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21936 91177308-0d34-0410-b5e6-96231b3b80d8

let dj run this

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21935 91177308-0d34-0410-b5e6-96231b3b80d8

fixed test case

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21934 91177308-0d34-0410-b5e6-96231b3b80d8

Do not CopyFromReg physregs for live-in values.  Instead, create a vreg for
each live in, and copy the regs from the vregs.  As the very first thing we
do in the function, insert copies from the pregs to the vregs.  This fixes
problems where the token chain of CopyFromReg was not enough to allow reordering
of the copyfromreg nodes and other unchained nodes (e.g. div, which clobbers
eax on intel).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21932 91177308-0d34-0410-b5e6-96231b3b80d8

Emit function entry code after lowering hte arguments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21931 91177308-0d34-0410-b5e6-96231b3b80d8

Allow targets to emit code into the entry block of each function

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21930 91177308-0d34-0410-b5e6-96231b3b80d8

add a new method

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21929 91177308-0d34-0410-b5e6-96231b3b80d8

calling a function with the wrong CC is undefined, turn it into an unreachable
instruction.  This is useful for catching optimizers that don't preserve
calling conventions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21928 91177308-0d34-0410-b5e6-96231b3b80d8

allow a virtual register to be associated with live-in values.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21927 91177308-0d34-0410-b5e6-96231b3b80d8

Make sure that decompression checks for the case that bzip2 returns
BZ_OK (meaning more data is expected) but there is no more input data. In
this case, the input file is probably truncated. Generate an exception that
indicates this case when its detected.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21926 91177308-0d34-0410-b5e6-96231b3b80d8

When lowering invokes to calls, amke sure to preserve the calling conv.  This
fixes Ptrdist/anagram with x86 llcbeta

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21925 91177308-0d34-0410-b5e6-96231b3b80d8

Prefer int 0 instead of long 0 for GEP arguments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21924 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a problem that nate reduced for me.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21923 91177308-0d34-0410-b5e6-96231b3b80d8

rename variables and functions to match renamed DAG nodes.  Bonus feature:
I can actually remember which one is which now!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21922 91177308-0d34-0410-b5e6-96231b3b80d8

disable this test for now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21920 91177308-0d34-0410-b5e6-96231b3b80d8

do not call expandop on the same value more than once.  This fixes
X86/2004-02-22-Casts.llx

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21919 91177308-0d34-0410-b5e6-96231b3b80d8

add a correct run line

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21918 91177308-0d34-0410-b5e6-96231b3b80d8

fix a bad typeo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21917 91177308-0d34-0410-b5e6-96231b3b80d8

update comment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21916 91177308-0d34-0410-b5e6-96231b3b80d8

rename the ADJCALLSTACKDOWN/ADJCALLSTACKUP nodes to be CALLSEQ_START/BEGIN.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21915 91177308-0d34-0410-b5e6-96231b3b80d8

reg test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21914 91177308-0d34-0410-b5e6-96231b3b80d8

Add a new -enable-x86-fastcc option that enables passing the first
two integer values in registers for the fastcc calling conv.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21912 91177308-0d34-0410-b5e6-96231b3b80d8

* Remove reference to llvm-fefw
* Fix copyright line

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21910 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-fefw doesn't exist (yet)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21907 91177308-0d34-0410-b5e6-96231b3b80d8

Remove extraneous `U ' in copyright line

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21906 91177308-0d34-0410-b5e6-96231b3b80d8

* Fix wording of the warning
* Add autoindent, smartindent, and smarttab options to the file

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21905 91177308-0d34-0410-b5e6-96231b3b80d8

Remove extraneous colons after program names for consistency

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21904 91177308-0d34-0410-b5e6-96231b3b80d8

Shameless update of copyright years.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21903 91177308-0d34-0410-b5e6-96231b3b80d8

Fix this test on Solaris.
Solaris grep is more traditional and (AFAIK) does not support regexs.
Also, single quotes should disable all shell interpretation, so no
backslashes should be needed (and, in fact, keep Solaris from working).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21902 91177308-0d34-0410-b5e6-96231b3b80d8

LowerCallTo now takes the cc to use

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21901 91177308-0d34-0410-b5e6-96231b3b80d8

Pass calling convention to use into lower call to

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21900 91177308-0d34-0410-b5e6-96231b3b80d8

Pass in Calling Convention to use into LowerCallTo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21899 91177308-0d34-0410-b5e6-96231b3b80d8

Enable pattern isel by default

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21898 91177308-0d34-0410-b5e6-96231b3b80d8

fix expansion of ct[lt]z nodes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21896 91177308-0d34-0410-b5e6-96231b3b80d8

Expand 64-bit ctlz/cttz nodes for 32-bit targets

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21895 91177308-0d34-0410-b5e6-96231b3b80d8

Fix uint->fp casts on PPC, allowing UnitTests/2005-05-12-Int64ToFP to
work on it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21894 91177308-0d34-0410-b5e6-96231b3b80d8

Correct a detail with the alloca instruction.
Functions do not exit with invoke; they exit with unwind.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21893 91177308-0d34-0410-b5e6-96231b3b80d8

Allow something to be legalized multiple times.  This can be used to reduce
legalization iteration

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21892 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed some typos.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21891 91177308-0d34-0410-b5e6-96231b3b80d8

Oops, don't do this after we figure out where to insert the call chains.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21890 91177308-0d34-0410-b5e6-96231b3b80d8

Make sure to expand all nodes, avoiding unintentional node duplication.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21889 91177308-0d34-0410-b5e6-96231b3b80d8

handle a common case generated by the uint64 -> FP code path better

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21888 91177308-0d34-0410-b5e6-96231b3b80d8

add fixme

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21887 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a really horrible problem that causes the JIT to miscompile any program
that use 64-bit integers on 32-bit hosts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21886 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a problem where early legalization can cause token chain problems.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21885 91177308-0d34-0410-b5e6-96231b3b80d8

These targets don't like setcc

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21884 91177308-0d34-0410-b5e6-96231b3b80d8

Add a little hook

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21883 91177308-0d34-0410-b5e6-96231b3b80d8

Make legalize a bit more efficient, and canonicalize sub X, C -> add X, -C

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21882 91177308-0d34-0410-b5e6-96231b3b80d8

Add testcase for legalizing ISD::CTTZ efficiently.  On PPC, ctlz(int) is
now codegen'd as this:

        addi r2, r3, -1
        andc r2, r2, r3
        cntlzw r2, r2
        subfic r3, r2, 32
        blr

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21881 91177308-0d34-0410-b5e6-96231b3b80d8

Necessary changes to codegen cttz efficiently on PowerPC
1. Teach LegalizeDAG how to better legalize CTTZ if the target doesn't have
   CTPOP, but does have CTLZ
2. Teach PPC32 how to do sub x, const -> add x, -const for valid consts
3. Teach PPC32 how to do and (xor a, -1) b -> andc b, a
4. Teach PPC32 that ISD::CTLZ -> PPC::CNTLZW

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21880 91177308-0d34-0410-b5e6-96231b3b80d8

Regression test for PR#563.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21879 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed issue that  broke ssa.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21878 91177308-0d34-0410-b5e6-96231b3b80d8

fix some GCC 4 warnings

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21877 91177308-0d34-0410-b5e6-96231b3b80d8

Added support for decomposing constant expressions containing shr and shl
instructions.
Review of this commit would be greatly appreciated.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21876 91177308-0d34-0410-b5e6-96231b3b80d8

Fix lowering of ctlz, so now UnitTests/2005-05-11-Popcount-ffs-fls passes
with the CBE

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21875 91177308-0d34-0410-b5e6-96231b3b80d8

Fix lowering of cttz to work with signed values

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21874 91177308-0d34-0410-b5e6-96231b3b80d8

fix and concisify intinsic lowering for ctpop.  Unfortunately, this code
looks completely untested. :(

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21873 91177308-0d34-0410-b5e6-96231b3b80d8

Fix the last remaining bug preventing us from switching the X86 BE over
from the simple isel to the pattern isel.  This forces inserted libcalls
to serialize against other function calls, which was breaking
UnitTests/2005-05-12-Int64ToFP.  Hopefully this will fix issues on other
targets as well.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21872 91177308-0d34-0410-b5e6-96231b3b80d8

Do not memoize ADJCALLSTACKDOWN nodes, provide a method to hack on them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21871 91177308-0d34-0410-b5e6-96231b3b80d8