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6084 Commits

Author SHA1 Message Date
Chris Lattner
47f5751c80 Fix 3113: If we have a dead cyclic PHI, replace the whole thing 
with an undef.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59972 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-24 19:25:36 +00:00
Scott Michel
045a14503f CellSPU: 
(a) Slight rethink on i64 zero/sign/any extend code - use a shuffle to
    directly zero-extend i32 to i64, but use rotates and shifts for
    sign extension. Also ensure unified register consistency.
(b) Add new test harness for i64 operations: i64ops.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59970 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-24 18:20:46 +00:00
Scott Michel
104de4390b CellSPU: 
(a) Improve the extract element code: there's no need to do gymnastics with
    rotates into the preferred slot if a shuffle will do the same thing.
(b) Rename a couple of SPUISD pseudo-instructions for readability and better
    semantic correspondence.
(c) Fix i64 sign/any/zero extension lowering.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59965 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-24 17:11:17 +00:00
Bill Wendling
d21c6ef9d0 Test add-with-overflow with fast ISel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59945 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-24 05:23:38 +00:00
Nick Lewycky
02ff308aa1 Extend the 'noalias' attribute to function return values. This is intended to 
indicate functions that allocate, such as operator new, or list::insert. The
actual definition is slightly less strict (for now).

No changes to the bitcode reader/writer, asm printer or verifier were needed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59934 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-24 03:41:24 +00:00
Bill Wendling
def27392c1 Add support for llvm.uadd.with.overflow. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59926 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-24 01:38:29 +00:00
Scott Michel
7a1c9e9cb7 CellSPU: Fix bug 3056. Varadic extract_element was not implemented (nor was it 
ever conceived to occur).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59891 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-22 23:50:42 +00:00
Nick Lewycky
0c73079855 Optimize (x/y)*y into x-(x%y) in general. Div and rem are about the same, and 
a subtract is cheaper than a multiply. This generalizes an existing transform.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59800 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-21 07:33:58 +00:00
Scott Michel
9c0c6b2e4a CellSPU: 
(a) Fix bgs 3052, 3057
(b) Incorporate Duncan's suggestions re: i1 promotion
(c) Indentation updates.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59790 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-21 02:56:16 +00:00
Bill Wendling
52a5899fd9 Add generic test for add with overflow. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59781 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-21 02:15:51 +00:00
Dan Gohman
eac9cae45e Test -pre-RA-sched=fast too, for completeness. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59741 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-20 19:26:04 +00:00
Evan Cheng
d37c13cfd1 - 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59697 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-20 02:32:35 +00:00
Devang Patel
7fe1decf3a If there are two consecutive llvm.dbg.stoppoint calls then 
it is likely that the optimizer deleted code in between these
two intrinsics. Keep only the last llvm.dbg.stoppoint in this case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59657 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-19 18:56:50 +00:00
Dan Gohman
8b677d0b88 Revert r59640. It broke this test for builds that aren't 
configured with llvm-gcc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59641 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-19 16:24:37 +00:00
Dan Gohman
c738ac1d5d 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59640 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-19 16:02:14 +00:00
Owen Anderson
75fa96bb71 Add support for rematerialization in pre-alloc-splitting. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59587 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-19 04:28:29 +00:00
Daniel Dunbar
911cfdb7d7 LLVMC2: -emit-llvm stops compilation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59586 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-19 04:15:56 +00:00
Daniel Dunbar
ff6477b720 LLVMC2: Teach llvm_gcc_c tool about -include and -fsyntax-only. 
- Only focusing on llvm_gcc_c for now, eventually this needs to be
   refactored so it can be shared via all the gcc-like tools.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59582 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-19 02:59:00 +00:00
Evan Cheng
9c64bf3905 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59559 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-18 22:28:38 +00:00
Nick Lewycky
dd643f26c4 Add a utility function that detects whether a loop is guaranteed to be finite. 
Use it to safely handle less-than-or-equals-to exit conditions in loops. These
also occur when the loop exit branch is exit on true because SCEV inverses the
icmp predicate.

Use it again to handle non-zero strides, but only with an unsigned comparison
in the exit condition.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59528 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-18 15:10:54 +00:00
Duncan Sands
51d83fdd89 Reapply r59464, this time using the correct type 
when softening FNEG.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59513 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-18 09:15:03 +00:00
Bill Wendling
c4ae87ac76 A simple test for stack protectors. This should be valid on all platforms. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59505 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-18 07:34:50 +00:00
Bill Wendling
8f55b3d67d 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



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59487 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-18 01:49:24 +00:00
Devang Patel
13877bf6c2 Give SIToFPInst preference over UIToFPInst because it is faster on platforms that are widely used. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59476 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-18 00:40:02 +00:00
Devang Patel
cd40233429 While handling floating point IVs lift restrictions on initial value and increment value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59471 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-17 23:27:13 +00:00
Duncan Sands
7fed65a68d Add soft float support for a bunch more operations. Original 
patch by Richard Osborne, tweaked and extended by your humble
servant.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59464 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-17 20:52:38 +00:00
Dale Johannesen
3d631c2d5d Remove these, which test for optimizations that 
are not currently done (cf PowerPC/README.txt).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59456 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-17 18:57:45 +00:00
Richard Osborne
104de6cf7b Don't produce ADDC/ADDE when expanding SHL unless they are legal 
for the target. This fixes PR3080.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59450 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-17 17:34:31 +00:00
Lang Hames
1aed723261 Removed 2008-10-17-SpillerBug.ll as it does not provide an accurate test of PR2898. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59431 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-16 23:30:12 +00:00
Lang Hames
684bd46a57 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59415 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-16 13:11:09 +00:00
Mon P Wang
c7849c22f4 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59399 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-16 05:06:27 +00:00
Chris Lattner
a74cefa6d3 Handle the case where there is no "not". It is possible it got 
folded into the select.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59389 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-16 04:25:26 +00:00
Chris Lattner
6093b36f47 make this actually test what it is trying to. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59386 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-16 04:21:51 +00:00
Nick Lewycky
d72a81ee64 Don't brute-force analyze cubic or higher polynomials. 
If this patch causes a performance regression for anyone, please let me know,
and it can be fixed in a different way with much more effort.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59384 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-16 04:14:25 +00:00
Nick Lewycky
70c44f0cce Correct this error message. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59370 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-15 17:50:47 +00:00
Richard Osborne
223fd6efc8 [XCore] Fix expansion of 64 bit add/sub. Don't custom expand 
these operations if ladd/lsub are not available on the current
subtarget.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59305 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-14 15:59:19 +00:00
Richard Osborne
1d8f975890 Add XCore intrinsics for getid (returns thread id) and bitrev (reverses 
bits in a word).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59296 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-14 10:12:16 +00:00
Dan Gohman
d23e0f81bc 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59273 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-13 23:24:17 +00:00
Dale Johannesen
e4f309e582 testcase for PR 1779. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59268 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-13 22:17:10 +00:00
Bill Wendling
241085aa38 Added testcase for r59214. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59218 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-13 04:09:04 +00:00
Tanya Lattner
02fa4f4e01 Add test case for ptr annotation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59142 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-12 16:12:27 +00:00
Duncan Sands
245146b58a Correct some thinkos in the expansion of ADD/SUB 
when the target does not support ADDC/SUBC.  This
fixes PR3044.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59120 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-12 08:23:26 +00:00
Dale Johannesen
cbf7cf50ec Fix the testb optimization so x86 also bootstraps. 
Reenable test.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59101 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-12 02:00:35 +00:00
Andrew Lenharth
683a922653 fix another libgcc blocker 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59026 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-11 06:06:07 +00:00
Bill Wendling
935e8e9afe Un-XFAIL tests now that they're fixed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59023 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-11 04:44:42 +00:00
Bill Wendling
080098e311 r59009 broke these tests. XFAIL for now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59010 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-11 00:36:10 +00:00
Bill Wendling
d0ab34bf8f 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59003 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-10 21:22:06 +00:00
Devang Patel
d4e7f44319 If the sign of exit condition and split condition does not match 
then do not split loop index.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58995 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-10 19:48:34 +00:00
Duncan Sands
f509224510 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). 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58994 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-10 17:36:26 +00:00
Duncan Sands
a29c13086a 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58991 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-10 17:28:30 +00:00