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1261 Commits

Author SHA1 Message Date
Evan Cheng
2805dcc9a0 - Register scavenger should use MachineRegisterInfo and internal map to find the first use of a register after a given machine instruction. 
- When scavenging a register, in addition to the spill, insert a restore before the first use.
- Abort if client is looking to scavenge a register even when a previously scavenged register is still live.

llvm-svn: 59697
 2008-11-20 02:32:35 +00:00
Dan Gohman
60e2650b09 Revert r59640. It broke this test for builds that aren't 
configured with llvm-gcc.

llvm-svn: 59641
 2008-11-19 16:24:37 +00:00
Dan Gohman
1b9557279c Use %llvmgcc -xassembler instead of invoking as directly. This avoids 
problems for example when LLVM is built with --with-extra-options=-m64
and as defaults to x86-32 mode.

llvm-svn: 59640
 2008-11-19 16:02:14 +00:00
Owen Anderson
482ea64f7b Add support for rematerialization in pre-alloc-splitting. 
llvm-svn: 59587
 2008-11-19 04:28:29 +00:00
Evan Cheng
145b3db050 Register scavenger should process early clobber defs first. A dead early clobber def should not interfere with a normal def which happens one slot later. 
llvm-svn: 59559
 2008-11-18 22:28:38 +00:00
Duncan Sands
3f0dbb4ead Reapply r59464, this time using the correct type 
when softening FNEG.

llvm-svn: 59513
 2008-11-18 09:15:03 +00:00
Bill Wendling
8c9e9be673 A simple test for stack protectors. This should be valid on all platforms. 
llvm-svn: 59505
 2008-11-18 07:34:50 +00:00
Bill Wendling
33cf8ff597 Revert r59464. It was causing this failure: 
Running /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/test/CodeGen/XCore/dg.exp ...
FAIL: /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/test/CodeGen/XCore/fneg.ll
Failed with signal(SIGABRT) at line 1
while running:  llvm-as < /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/test/CodeGen/XCore/fneg.ll |  llc -march=xcore > fneg.ll.tmp1.s
Assertion failed: (VT.isFloatingPoint() && "Cannot create integer FP constant!"), function getConstantFP, file /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/lib/CodeGen/SelectionDAG/SelectionDAG.cpp, line 913.
0   llc                                 0x0092115c _ZN4llvm3sys18RemoveFileOnSignalERKNS0_4PathEPSs + 844
1   libSystem.B.dylib                   0x9217809b _sigtramp + 43
2   ???                                 0xffffffff 0x0 + 4294967295
3   libSystem.B.dylib                   0x921f0ec2 raise + 26
4   libSystem.B.dylib                   0x9220047f abort + 73
5   libSystem.B.dylib                   0x921f2063 __assert_rtn + 101
6   llc                                 0x005a5b0a _ZN4llvm12SelectionDAG13getConmake[1]: *** [check-local] Error 1
make: *** [check] Error 2

llvm-svn: 59487
 2008-11-18 01:49:24 +00:00
Duncan Sands
b13af5a714 Add soft float support for a bunch more operations. Original 
patch by Richard Osborne, tweaked and extended by your humble
servant.

llvm-svn: 59464
 2008-11-17 20:52:38 +00:00
Dale Johannesen
652c29e68d Remove these, which test for optimizations that 
are not currently done (cf PowerPC/README.txt).

llvm-svn: 59456
 2008-11-17 18:57:45 +00:00
Richard Osborne
2eb278eb4d Don't produce ADDC/ADDE when expanding SHL unless they are legal 
for the target. This fixes PR3080.

llvm-svn: 59450
 2008-11-17 17:34:31 +00:00
Lang Hames
cdccf43c58 Removed 2008-10-17-SpillerBug.ll as it does not provide an accurate test of PR2898. 
llvm-svn: 59431
 2008-11-16 23:30:12 +00:00
Lang Hames
66bb641598 2008-10-17-SpillerBug.ll is currently failing, but this doesn't reflect an actual regression of PR2898. This test should probably be removed. I've XFAILed it for now to keep buildbot quiet while this is considered. 
llvm-svn: 59415
 2008-11-16 13:11:09 +00:00
Mon P Wang
b6661b480b Improved shuffle normalization to avoid using extract/build when we 
can extract using different indexes for two vectors. Added a few tests
for vector shuffles.

llvm-svn: 59399
 2008-11-16 05:06:27 +00:00
Richard Osborne
c2b2d5e6cf [XCore] Fix expansion of 64 bit add/sub. Don't custom expand 
these operations if ladd/lsub are not available on the current
subtarget.

llvm-svn: 59305
 2008-11-14 15:59:19 +00:00
Richard Osborne
8f86bb4d20 Add XCore intrinsics for getid (returns thread id) and bitrev (reverses 
bits in a word).

llvm-svn: 59296
 2008-11-14 10:12:16 +00:00
Dan Gohman
0a3ae5c0f2 Remove the FlaggedNodes member from SUnit. Instead of requiring each SUnit 
to carry a SmallVector of flagged nodes, just calculate the flagged nodes
dynamically when they are needed.

The local-liveness change is due to a trivial scheduling change where
the scheduler arbitrary decision differently.

llvm-svn: 59273
 2008-11-13 23:24:17 +00:00
Dale Johannesen
cc7dc0ec70 testcase for PR 1779. 
llvm-svn: 59268
 2008-11-13 22:17:10 +00:00
Duncan Sands
117397c8dd Correct some thinkos in the expansion of ADD/SUB 
when the target does not support ADDC/SUBC.  This
fixes PR3044.

llvm-svn: 59120
 2008-11-12 08:23:26 +00:00
Dale Johannesen
a2cd0724ea Fix the testb optimization so x86 also bootstraps. 
Reenable test.

llvm-svn: 59101
 2008-11-12 02:00:35 +00:00
Andrew Lenharth
d096adcb5f fix another libgcc blocker 
llvm-svn: 59026
 2008-11-11 06:06:07 +00:00
Bill Wendling
97ad53032e Un-XFAIL tests now that they're fixed. 
llvm-svn: 59023
 2008-11-11 04:44:42 +00:00
Bill Wendling
e27327ae95 r59009 broke these tests. XFAIL for now. 
llvm-svn: 59010
 2008-11-11 00:36:10 +00:00
Bill Wendling
891f177dd0 Temporarily revert r58979 and related patch. It's causing a failure in X86 bootstrap: 
Comparing stages 2 and 3
warning: ./cc1-checksum.o differs
warning: ./cc1obj-checksum.o differs
warning: ./cc1objplus-checksum.o differs
warning: ./cc1plus-checksum.o differs
Bootstrap comparison failure!
./alias.o differs
./alloc-pool.o differs
./attribs.o differs
./bb-reorder.o differs
./bitmap.o differs
./build/errors.o differs
./build/genattrtab.o differs
./build/genautomata.o differs
./build/genemit.o differs
./build/genextract.o differs
...

-bw

llvm-svn: 59003
 2008-11-10 21:22:06 +00:00
Duncan Sands
22e8a45a01 Fix PR2667: add soft float support for sint_to_fp/uint_to_fp 
where the argument is an apint, or smaller than the minimum
size for which there is a libcall (i32). 

llvm-svn: 58994
 2008-11-10 17:36:26 +00:00
Duncan Sands
1d0b7dccf7 When promoting the result of fp_to_uint/fp_to_sint, 
inform the optimizers that the result must be zero/
sign extended from the smaller type.  For example,
if a fp to unsigned i16 is promoted to fp to i32,
then we are allowed to assume that the extra 16 bits
are zero (because the result of fp to i16 is undefined
if the result does not fit in an i16).  This is
quite aggressive, but should help the optimizers
produce better code.  This requires correcting a
test which thought that fp_to_uint is some kind
of truncation, which it is not: in the testcase
(which does fp to i1), either the fp value converts
to 0 or 1 or the result is undefined, which is
quite different to truncation.

llvm-svn: 58991
 2008-11-10 17:28:30 +00:00
Dale Johannesen
28c0044273 Reenable test. 
llvm-svn: 58980
 2008-11-10 07:30:32 +00:00
Duncan Sands
3bc55fc46f XFAIL this while waiting for a fix. 
llvm-svn: 58934
 2008-11-09 13:07:47 +00:00
Scott Michel
d168ef3d26 CellSPU: Update expected counts on expected patterns 
llvm-svn: 58927
 2008-11-09 01:03:41 +00:00
Dale Johannesen
2487d3100b Generated code for generic expansion of SETUGT etc. 
is noticeably worse than previous PPC-specific code.
Since the latter was also wrong in some cases and
correctness is more important than efficiency, I'm
disabling this test temporarily while I fix it.

llvm-svn: 58876
 2008-11-08 00:49:19 +00:00
Dale Johannesen
5c10f4178e Xfail an incorrect test. 
llvm-svn: 58875
 2008-11-08 00:40:24 +00:00
Richard Osborne
f4fb6eaf71 Add basic test for XCore backend 
llvm-svn: 58841
 2008-11-07 11:24:12 +00:00
Dale Johannesen
64f40545b3 Testcase for testb optimization. 
llvm-svn: 58827
 2008-11-07 01:30:18 +00:00
Dan Gohman
aeaf83cfb8 Make ISel ignore dead nodes. The DAGCombiner normally eliminates 
dead nodes, but in this case its missing one. Fixing the DAGCombiner
is desirable, but it's somewhat involved.

llvm-svn: 58777
 2008-11-05 22:56:47 +00:00
Evan Cheng
1378d6c7a9 Add more vector move low and zero-extend patterns. 
llvm-svn: 58752
 2008-11-05 06:04:51 +00:00
Evan Cheng
59112bc108 Actually ARM / Mac OS X does have UINTTOFP_I64_F{64|32} libcalls. 
llvm-svn: 58725
 2008-11-04 22:19:55 +00:00
Evan Cheng
45496b349f Custom lower bit_convert i64 -> f64 into FMDRR. This is now happening with legalizetypes. 
llvm-svn: 58714
 2008-11-04 19:57:48 +00:00
Duncan Sands
58ebf09772 Fix PR3011: LegalizeTypes support for scalarizing 
SELECT_CC.

llvm-svn: 58706
 2008-11-04 17:31:08 +00:00
Dan Gohman
0ba8aad1af The ANDMask node folds to a constant, and isn't the node that needs to 
have its node id set. The new and and shift nodes are the nodes that need
the IDs. This fixes PR2982.

llvm-svn: 58655
 2008-11-03 23:43:55 +00:00
Dan Gohman
edf3dc97c2 Change how extended types are represented in MVTs. Instead of fiddling 
bits, use a union of a SimpleValueType enum and a regular Type*.

This increases the size of MVT on 64-bit hosts from 32 bits to 64 bits.
In most cases, this doesn't add significant overhead. There are places
in codegen that use arrays of MVTs, so these are now larger, but
they're small in common cases.

This eliminates restrictions on the size of integer types and vector
types that can be represented in codegen. As the included testcase
demonstrates, it's now possible to codegen very large add operations.
There are still some complications with using very large types. PR2880
is still open so they can't be used as return values on normal targets,
there are no libcalls defined for very large integers so operations
like multiply and divide aren't supported.

This also introduces a minimal tablgen Type library, capable of
handling IntegerType and VectorType. This will allow parts of
TableGen that don't depend on using SimpleValueType values to handle
arbitrary integer and vector types.

llvm-svn: 58623
 2008-11-03 17:56:27 +00:00
Duncan Sands
a9047944bc Make VAARG work with x86 long double (which is 
10 bytes long, but is passed in 12/16 bytes).

llvm-svn: 58608
 2008-11-03 11:51:11 +00:00
Duncan Sands
d2500010a3 Add a bunch of libcalls for ppcf128 that were somehow 
completely forgotten about when writing LegalizeTypes.

llvm-svn: 58508
 2008-10-31 14:06:52 +00:00
Dan Gohman
481e1fd0a6 Use MOVSSmr instead of EXTRACTPSmr in the case of extracting 
vector element 0 for a store, as it's smaller and faster.

llvm-svn: 58483
 2008-10-31 00:57:24 +00:00
Duncan Sands
1903629c49 Testcase for PR2986. 
llvm-svn: 58456
 2008-10-30 20:34:30 +00:00
Scott Michel
5b588212d8 Resolve bug 2947: vararg-marked functions must spill registers R3-R79 to stack 
so that va_start/va_arg/et.al. will walk arguments correctly for Cell SPU.

N.B.: Because neither clang nor llvm-gcc-4.2 can be built for CellSPU, this is
still unexorcised code.

llvm-svn: 58415
 2008-10-30 01:51:48 +00:00
Chris Lattner
a99dc2692a add testcase for PR2964 
llvm-svn: 58393
 2008-10-29 18:42:22 +00:00
Duncan Sands
fd032c5bef Fix PR2977: LegalizeTypes support for expanding 
VAARG.

llvm-svn: 58379
 2008-10-29 14:25:28 +00:00
Evan Cheng
6125b9e097 - More pre-split fixes: spill slot live interval computation bug; restore point bug. 
- If a def is spilt, remember its spill index to allow its reuse.

llvm-svn: 58375
 2008-10-29 08:39:34 +00:00
Duncan Sands
a64641fbd2 Fix darwin ppc llvm-gcc build breakage: intercept 
ppcf128 to i32 conversion and expand it into a code
sequence like in LegalizeDAG.  This needs custom
ppc lowering of FP_ROUND_INREG, so turn that on and
make it work with LegalizeTypes.  Probably PPC should
simply custom lower the original conversion.

llvm-svn: 58329
 2008-10-28 15:00:32 +00:00
Duncan Sands
da35d6f7d6 Turn off LegalizeTypes for this test for the 
moment, while waiting for a proper solution.

llvm-svn: 58324
 2008-10-28 09:55:04 +00:00