Commit Graph

366 Commits

Author SHA1 Message Date
Evan Cheng
1902a129a5 Private linkage support for PPC / Darwin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62955 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-25 06:32:01 +00:00
Evan Cheng
ee5c2b8ba2 Fix PPC ISD::Declare isel and eliminate the need for PPCTargetLowering::LowerGlobalAddress to check if isVerifiedDebugInfoDesc() is true. Given the recent changes, it would falsely return true for a lot of GlobalAddressSDNode's.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62373 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-16 22:57:32 +00:00
Rafael Espindola
bb46f52027 Add the private linkage.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62279 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-15 20:18:42 +00:00
Chris Lattner
a545778a77 this test should not run opt -std-compile-opts, it should run
just llc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61979 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-09 05:32:00 +00:00
Chris Lattner
aca3e68dd8 rename a file to follow naming conventions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61550 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-02 01:52:35 +00:00
Evan Cheng
5379f412bc Fix PR3149. If an early clobber def is a physical register and it is tied to an input operand, it effectively extends the live range of the physical register. Currently we do not have a good way to represent this.
172     %ECX<def> = MOV32rr %reg1039<kill>
180     INLINEASM <es:subl $5,$1
        sbbl $3,$0>, 10, %EAX<def>, 14, %ECX<earlyclobber,def>, 9, %EAX<kill>,
36, <fi#0>, 1, %reg0, 0, 9, %ECX<kill>, 36, <fi#1>, 1, %reg0, 0
188     %EAX<def> = MOV32rr %EAX<kill>
196     %ECX<def> = MOV32rr %ECX<kill>
204     %ECX<def> = MOV32rr %ECX<kill>
212     %EAX<def> = MOV32rr %EAX<kill>
220     %EAX<def> = MOV32rr %EAX
228     %reg1039<def> = MOV32rr %ECX<kill>

The early clobber operand ties ECX input to the ECX def.

The live interval of ECX is represented as this:
%reg20,inf = [46,47:1)[174,230:0)  0@174-(230) 1@46-(47)

The right way to represent this is something like
%reg20,inf = [46,47:2)[174,182:1)[181:230:0)  0@174-(182) 1@181-230 @2@46-(47)

Of course that won't work since that means overlapping live ranges defined by two val#.

The workaround for now is to add a bit to val# which says the val# is redefined by a early clobber def somewhere. This prevents the move at 228 from being optimized away by SimpleRegisterCoalescing::AdjustCopiesBackFrom.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61259 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-19 20:58:01 +00:00
Rafael Espindola
2f6fea90a5 Fix bug 3202.
The EH_frame and .eh symbols are now private, except for darwin9 and earlier.
The patch also fixes the definition of PrivateGlobalPrefix on pcc linux.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61242 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-19 10:55:56 +00:00
Evan Cheng
09dc9c0c83 We have decided not to support inline asm where an output operand with a matching input operand with incompatible type (i.e. either one is a floating point and the other is an integer or the sizes of the types differ). SelectionDAGBuild will catch these and exit with an error.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61092 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16 18:21:39 +00:00
Evan Cheng
ae94e59416 Re-did 60519. It turns out Darwin's handling of hidden visibility symbols are a bit more complicate than I expected. Both declarations and weak definitions still need a stub indirection. However, the stubs are in data section and they contain the addresses of the actual symbols.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60571 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-05 01:06:39 +00:00
Evan Cheng
96da041949 Remove a (what appears to be) overly strict assertion. Here is what happened:
1. ppcf128 select is expanded to f64 select's.
2. f64 select operand 0 is an i1 truncate, it's promoted to i32 zero_extend.
3. f64 select is updated. It's changed back to a "NewNode" and being re-analyzed.
4. f64 select operands are being processed. Operand 0 is a "NewNode". It's being expunged out of ReplacedValues map.
5. ExpungeNode tries to remap f64 select and notice it's a "NewNode" and assert.
Duncan, please take a look. Thanks.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60443 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-02 21:57:09 +00:00
Duncan Sands
af7852f094 Check that running the DAG combiner between type
and operation legalization does something useful.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60108 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-26 16:44:30 +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
Dale Johannesen
3dd42cfe12 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58876 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-08 00:49:19 +00:00
Dale Johannesen
c4c7a6a3fb Xfail an incorrect test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58875 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-08 00:40:24 +00:00
Dan Gohman
33a9cb4f40 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58777 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-05 22:56:47 +00:00
Duncan Sands
e59416efb8 Fix PR3011: LegalizeTypes support for scalarizing
SELECT_CC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58706 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-04 17:31:08 +00:00
Duncan Sands
06f0aff69e Add a bunch of libcalls for ppcf128 that were somehow
completely forgotten about when writing LegalizeTypes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58508 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-31 14:06:52 +00:00
Duncan Sands
d383ff313b Testcase for PR2986.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58456 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-30 20:34:30 +00:00
Chris Lattner
db97348400 add testcase for PR2964
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58393 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-29 18:42:22 +00:00
Duncan Sands
57760d96e2 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58329 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-28 15:00:32 +00:00
Duncan Sands
42d4499a16 Turn off LegalizeTypes for this test for the
moment, while waiting for a proper solution.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58324 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-28 09:55:04 +00:00
Duncan Sands
1acb29c8ea Fix a testcase provided by Bill in which the node
id could end up being wrong mostly because of
forgetting to remap new nodes that morphed into
processed nodes through CSE.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58323 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-28 09:38:36 +00:00
Chris Lattner
4af2c40c63 rename vec_spat -> vec_splat, pointed out by duncan
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58260 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-27 18:28:24 +00:00
Chris Lattner
629b52697b remove eh output from this test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58196 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-26 18:53:07 +00:00
Chris Lattner
2a0b96c2c7 Reapply r57699 with a fix to not crash on asms with multiple results. Unlike
the previous patch this one actually passes make check.

"Fix PR2356 on PowerPC: if we have an input and output that are tied together
that have different sizes (e.g. i32 and i64) make sure to reserve registers for
the bigger operand."



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57771 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-18 18:49:30 +00:00
Dan Gohman
95915730de Revert r57699. It's causing regressions in
test/CodeGen/X86/2008-09-17-inline-asm-1.ll
and a few others, and it breaks the llvm-gcc build.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57747 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-18 01:03:45 +00:00
Chris Lattner
0c52644cd8 Fix PR2356 on PowerPC: if we have an input and output that are tied together
that have different sizes (e.g. i32 and i64) make sure to reserve registers for
the bigger operand.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57699 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17 17:52:49 +00:00
Bill Wendling
eabb8866d8 Testcase for PR1638.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57590 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15 18:27:15 +00:00
Dan Gohman
e7aa7baa76 Split this test and move it into target-specific directories.
This fixes failures on configurations that don't have one or the
other targets enabled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56926 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-01 19:46:30 +00:00
Dale Johannesen
8e3455ba17 Remove SelectionDag early allocation of registers
for earlyclobbers.  Teach Local RA about earlyclobber,
and add some tests for it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56592 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-24 23:13:09 +00:00
Bill Wendling
7795932d41 Add trampoline support to PPC. GCC simply calls the "__trampoline_setup"
function with appropriate parameters. This allows us to support blocks on PPC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56267 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-17 00:30:57 +00:00
Evan Cheng
ee9e1b0a85 On some targets, non-move instructions can become move instructions because of coalescing. e.g.
vr2 = OR vr0, vr1
=>
vr2 = OR vr1, vr1   // after coalescing vr0 with vr1

Update the value# of the destination register with the copy instruction if that happens.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56165 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-12 18:13:14 +00:00
Dale Johannesen
c4db7276e0 Testcases for ppc atomics.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55556 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-30 00:54:31 +00:00
Mon P Wang
5ad0bf658a In lowering SELECT_CC, removed cases where we can't flip the true and false when the compare value has a NaN
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55499 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-28 21:04:05 +00:00
Dale Johannesen
8bb2ef4760 Adjust grep's for new code sequence.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55320 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-25 18:53:58 +00:00
Evan Cheng
982a05955a Fix a catastrophic PPC64 ABI bug: i32 operands which are passed in memory (all of the parameter registers are used) are loaded from sp offsets that were off by 4.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53979 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-24 08:17:07 +00:00
Dan Gohman
e8be6c6391 Add a new function, ReplaceAllUsesOfValuesWith, which handles bulk
replacement of multiple values. This is slightly more efficient
than doing multiple ReplaceAllUsesOfValueWith calls, and theoretically
could be optimized even further. However, an important property of this
new function is that it handles the case where the source value set and
destination value set overlap. This makes it feasible for isel to use
SelectNodeTo in many very common cases, which is advantageous because
SelectNodeTo avoids a temporary node and it doesn't require CSEMap
updates for users of values that don't change position.

Revamp MorphNodeTo, which is what does all the work of SelectNodeTo, to
handle operand lists more efficiently, and to correctly handle a number
of corner cases to which its new wider use exposes it.

This commit also includes a change to the encoding of post-isel opcodes
in SDNodes; now instead of being sandwiched between the target-independent
pre-isel opcodes and the target-dependent pre-isel opcodes, post-isel
opcodes are now represented as negative values. This makes it possible
to test if an opcode is pre-isel or post-isel without having to know
the size of the current target's post-isel instruction set.

These changes speed up llc overall by 3% and reduce memory usage by 10%
on the InstructionCombining.cpp testcase with -fast and -regalloc=local.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53728 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-17 19:10:17 +00:00
Duncan Sands
79ada108dd LegalizeTypes support for what seems to be the
only missing ppc long double operations: FNEG
and FP_EXTEND.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53723 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-17 17:35:14 +00:00
Duncan Sands
17991c3234 The atomic.cmp.swap promotion logic is wrong: it
simply does the atomic.cmp.swap on the larger type,
which means it blows away whatever is sitting in
the bytes just after the memory location, i.e.
causes a buffer overflow.  This really requires
target specific code, which is why LegalizeTypes
doesn't try to handle this case generically.  The
existing (wrong) code in LegalizeDAG will go away
automatically once the type legalization code is
removed from LegalizeDAG so I'm leaving it there
for the moment.  Meanwhile, don't test for this
feature.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53669 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-16 08:09:48 +00:00
Duncan Sands
295a7cddbd LegalizeTypes support for fabs on ppc long double.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53613 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-15 15:02:44 +00:00
Duncan Sands
c07e6e53f7 LegalizeTypes support for promotion of bswap.
In LegalizeDAG the value is zero-extended to
the new type before byte swapping.  It doesn't
matter how the extension is done since the new
bits are shifted off anyway after the swap, so
extend by any old rubbish bits.  This results
in the final assembler for the testcase being
one line shorter.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53604 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-15 10:18:22 +00:00
Duncan Sands
8d56a6f4d8 LegalizeTypes support for promotion of SIGN_EXTEND_INREG.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53603 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-15 10:14:24 +00:00
Chris Lattner
85e7ac0353 Fix an altivec constant miscompilation that Duncan found through
his work on legalizetypes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53410 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-10 16:33:38 +00:00
Dan Gohman
95d110920e Refactor the tablegen DAGISelEmitter code for outputing calls to
getTargetNode and SelectNodeTo to reduce duplication, and to
make some of the getTargetNode code available to SelectNodeTo.
Use SelectNodeTo instead of getTargetNode in several new
interesting cases, as it mutates nodes in place instead of
creating new ones.

This triggers some scheduling behavior differences due to nodes
being presented to the scheduler in a different order. Some of the
arbitrary scheduling decisions it makes are now arbitrarily made
differently. This is visible in CodeGen/PowerPC/LargeAbsoluteAddr.ll,
where a trivial scheduling difference led to a trivial register
allocation difference.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53203 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-07 21:00:17 +00:00
Mon P Wang
2887310630 Added MemOperands to Atomic operations since Atomics touches memory.
Added abstract class MemSDNode for any Node that have an associated MemOperand
Changed atomic.lcs => atomic.cmp.swap, atomic.las => atomic.load.add, and
atomic.lss => atomic.load.sub


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52706 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-25 08:15:39 +00:00
Bill Wendling
ebcba612b5 This situation can occur:
,------.
    |      |
    |      v
    |   t2 = phi ... t1 ...
    |      |
    |      v
    |   t1 = ...
    |  ... = ... t1 ...
    |      |
    `------'

where there is a use in a PHI node that's a predecessor to the defining
block. We don't want to mark all predecessors as having the value "alive" in
this case. Also, the assert was too restrictive and didn't handle this case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52655 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-23 23:41:14 +00:00
Duncan Sands
a1ace76c70 Support for load/store of expanded float types. I
don't know if a truncating store is possible here,
but added support for it anyway.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52577 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21 17:00:47 +00:00
Evan Cheng
c8af52c898 ISD::UNDEF should be expanded recursively / iteratively.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52508 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-19 22:01:11 +00:00
Gabor Greif
f6cadc440c sabre brings to my attention that the 'tr' suffix is also obsolete
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51349 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-20 21:00:03 +00:00
Gabor Greif
722243bd40 Rename the last test with .llx extension to .ll, resolve duplicate test by renaming to isnan2. Now that no test has llx ending there is no need to search for them from dg.exp too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51328 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-20 19:52:04 +00:00