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2869 Commits

Author SHA1 Message Date
Chris Lattner
78360a8184 move tests that depend on the x86 backend out of codegen/generic, 
and remove a few old and unreduced ones.  Fixes PR5624. 

llvm-svn: 95656
 2010-02-09 06:41:03 +00:00
Chris Lattner
4660c225a2 make target independent. 
llvm-svn: 95655
 2010-02-09 06:36:30 +00:00
Chris Lattner
933509287b merge a target-specific add test into x86 directory. 
llvm-svn: 95654
 2010-02-09 06:35:50 +00:00
Chris Lattner
015ecd85d4 merge another test in, drop the trivially constant folded cases. 
llvm-svn: 95653
 2010-02-09 06:33:27 +00:00
Chris Lattner
c77b9eb31c consolidate and filecheckize two tests. 
llvm-svn: 95652
 2010-02-09 06:24:00 +00:00
Chris Lattner
534e1667a0 merge two tests, make target independent. 
llvm-svn: 95651
 2010-02-09 06:19:20 +00:00
Chris Lattner
ae67ca33ed convert to filecheck. 
llvm-svn: 95608
 2010-02-08 23:47:34 +00:00
Chris Lattner
b6b2164e28 add an x86 implementation of MCTargetExpr for 
representing @GOT and friends.  Use it for
personality references as a first use.

llvm-svn: 95588
 2010-02-08 22:09:08 +00:00
Dan Gohman
4268d6a7c3 When CodeGen'ing unoptimized code, there may be unfolded constant expressions 
in global initializers. Instead of aborting, attempt to fold them on the
spot. If folding succeeds, emit the folded expression instead.

This fixes PR6255.

llvm-svn: 95583
 2010-02-08 22:02:38 +00:00
Dan Gohman
bd374da130 In guaranteed tailcall mode, don't decline the tailcall optimization 
for blocks ending in "unreachable".

llvm-svn: 95565
 2010-02-08 20:34:14 +00:00
Evan Cheng
ea5c6be766 Run codegen dce pass for all targets at all optimization levels. Previously it's 
only run for x86 with fastisel. I've found it being very effective in
eliminating some obvious dead code as result of formal parameter lowering
especially when tail call optimization eliminated the need for some of the loads
from fixed frame objects. It also shrinks a number of the tests. A couple of
tests no longer make sense and are now eliminated.

llvm-svn: 95493
 2010-02-06 09:07:11 +00:00
Evan Cheng
c72f7882c0 Remove a large test case that (soon will) no longer make sense. 
llvm-svn: 95492
 2010-02-06 09:00:30 +00:00
Rafael Espindola
4536b9a904 Fix alignment on ppc linux. This fixes the build of crtend.o 
llvm-svn: 95477
 2010-02-06 03:32:21 +00:00
Evan Cheng
d064aefefc Do not emit callseq instructions around sibcalls. This eliminated some unnecessary stack adjustments. 
llvm-svn: 95475
 2010-02-06 03:28:46 +00:00
Bob Wilson
5638c36efd Handle AddrMode6 (for NEON load/stores) in Thumb2's rewriteT2FrameIndex. 
Radar 7614112.

llvm-svn: 95456
 2010-02-06 00:24:38 +00:00
Jakob Stoklund Olesen
5f9ead2714 Don't unroll loops containing function calls. 
llvm-svn: 95454
 2010-02-05 23:21:31 +00:00
Bill Wendling
994da1a479 Make test more fucused eliminating extraneous bits. 
llvm-svn: 95384
 2010-02-05 11:21:05 +00:00
Evan Cheng
c8b4db77be Fix test. 
llvm-svn: 95373
 2010-02-05 06:37:00 +00:00
Evan Cheng
a366c61f77 Handle tail call with byval arguments. 
llvm-svn: 95351
 2010-02-05 02:21:12 +00:00
Evan Cheng
3b245876c0 When the scheduler unfold a load folding instruction it move some of the predecessors to the unfolded load. It decides what gets moved to the load by checking whether the new load is using the predecessor as an operand. The check neglects the cases whether the predecessor is a flagged scheduling unit. 
rdar://7604000

llvm-svn: 95339
 2010-02-05 01:27:11 +00:00
Bill Wendling
6510dc8dc3 An empty global constant (one of size 0) may have a section immediately 
following it. However, the EmitGlobalConstant method wasn't emitting a body for
the constant. The assembler doesn't like that. Before, we were generating this:

  .zerofill __DATA, __common, __cmd, 1, 3

This fix puts us back to that semantic.

llvm-svn: 95336
 2010-02-05 00:17:02 +00:00
Jakob Stoklund Olesen
c7c89b8325 Fix small bug in handling instructions with more than one implicitly defined operand. 
ProcessImplicitDefs would only mark one operand per instruction with <undef>.
This fixed PR6086.

llvm-svn: 95319
 2010-02-04 18:46:28 +00:00
Evan Cheng
aeba2250a5 Re-enable x86 tail call optimization. 
llvm-svn: 95295
 2010-02-04 06:47:24 +00:00
Chris Lattner
8228b11abc add support for the sparcv9-*-* target triple to turn on 
64-bit sparc codegen.  Patch by Nathan Keynes!

llvm-svn: 95293
 2010-02-04 06:34:01 +00:00
Evan Cheng
f4139067ee Speculatively disable x86 automatic tail call optimization while we track down a self-hosting issue. 
llvm-svn: 95259
 2010-02-03 21:40:40 +00:00
Evan Cheng
112a871fe2 Make test less fragile 
llvm-svn: 95258
 2010-02-03 21:39:04 +00:00
Evan Cheng
27a41d5473 Revert 94937 and move the noreturn check to codegen. 
llvm-svn: 95198
 2010-02-03 03:55:59 +00:00
Evan Cheng
40905b4302 Allow all types of callee's to be tail called. But avoid automatic tailcall if the callee is a result of bitcast to avoid losing necessary zext / sext etc. 
llvm-svn: 95195
 2010-02-03 03:28:02 +00:00
Dale Johannesen
a466692552 Reapply 95050 with a tweak to check the register class. 
llvm-svn: 95183
 2010-02-03 01:40:33 +00:00
Chris Lattner
dee74e2805 make these less sensitive to asm verbose changes by disabling it for them. 
llvm-svn: 95175
 2010-02-03 00:48:53 +00:00
Dale Johannesen
da431c76fb Test revert 95050; there's a good chance it's causing 
buildbot failure.

llvm-svn: 95103
 2010-02-02 18:52:56 +00:00
Evan Cheng
55afd2564c Perform sibcall in some cases when arguments are passes memory. Look for cases 
where callee's arguments are already in the caller's own caller's stack and
they line up perfectly. e.g.

extern int foo(int a, int b, int c);

int bar(int a, int b, int c) {
  return foo(a, b, c);
}

llvm-svn: 95053
 2010-02-02 02:22:50 +00:00
Dale Johannesen
c84816a62e Make local RA smarter about reusing input register of a copy 
as output.  Needed for (functional) correctness in inline asm,
and should be generally beneficial.  7361612.

llvm-svn: 95050
 2010-02-02 02:08:02 +00:00
Evan Cheng
a49d8e6d38 Fix PR6196. GV callee may not be a function. 
llvm-svn: 95017
 2010-02-01 22:40:09 +00:00
Dan Gohman
36bca4e4ba Update this test for a trivial register allocation difference. 
llvm-svn: 94989
 2010-02-01 19:00:32 +00:00
Evan Cheng
ed8ca56eeb Undo r94946 now all the tests are passing again. 
llvm-svn: 94970
 2010-02-01 02:13:39 +00:00
Evan Cheng
7f62def0f9 Avoid recursive sibcall's. 
llvm-svn: 94946
 2010-01-31 06:44:49 +00:00
Anton Korobeynikov
25df248382 Fix a gross typo: ARMv6+ may or may not support unaligned memory operations. 
Even if they are suported by the core, they can be disabled
(this is just a configuration bit inside some register).

Allow unaligned memops on darwin and conservatively disallow them otherwise.

llvm-svn: 94889
 2010-01-30 14:08:12 +00:00
Evan Cheng
70f714fdbe Allow more tailcall optimization: calls with inputs that are all passed in registers. 
llvm-svn: 94873
 2010-01-30 01:22:00 +00:00
Evan Cheng
297a494f55 Catch more trivial tail call opportunities: no inputs and output types match. 
llvm-svn: 94804
 2010-01-29 06:45:59 +00:00
Chris Lattner
cc9a6f0580 convert the last 3 targets to use EmitFunctionBody() now that 
it has before/end body hooks.

 lib/Target/Alpha/AsmPrinter/AlphaAsmPrinter.cpp |   49 ++-----------
 lib/Target/Mips/AsmPrinter/MipsAsmPrinter.cpp   |   87 ++++++------------------
 lib/Target/XCore/AsmPrinter/XCoreAsmPrinter.cpp |   56 +++------------
 test/CodeGen/XCore/ashr.ll                      |    2 
 4 files changed, 48 insertions(+), 146 deletions(-)

llvm-svn: 94741
 2010-01-28 06:22:43 +00:00
Evan Cheng
346af88396 Fix a bug introduced by r94490 where it created a X86ISD::CMP whose output type is different from its inputs. 
This fixes PR6146.

llvm-svn: 94731
 2010-01-28 01:57:22 +00:00
Chris Lattner
73de5fbfc3 Give AsmPrinter the most common expected implementation of 
runOnMachineFunction, and switch PPC to use EmitFunctionBody.
The two ppc asmprinters now don't heave to define 
runOnMachineFunction.

llvm-svn: 94722
 2010-01-28 01:28:58 +00:00
Chris Lattner
565896b9eb emit a 0 byte instead of a noop if a function is empty on darwin. 
"0" is nice and target independent.

llvm-svn: 94718
 2010-01-28 01:06:32 +00:00
Chandler Carruth
4fe7a3bc08 Quick fix to a test that is currently failing on every Linux build bot. No idea 
if this is the "correct" fix, but it seems a strict improvement.

llvm-svn: 94675
 2010-01-27 10:36:15 +00:00
Evan Cheng
85476f304c Perform trivial tail call optimization for callees with "C" ABI. These are done 
even when -tailcallopt is not specified and it does not require changing ABI.
First case is the most trivial one. Perform tail call optimization when both
the caller and callee do not return values and when the callee does not take
any input arguments.

llvm-svn: 94664
 2010-01-27 06:25:16 +00:00
Chris Lattner
b657c4cdc3 emit jump table an alias ".set" directives through MCStreamer as 
assignments.

.set x, a-b

is the same as:

x = a-b

llvm-svn: 94596
 2010-01-26 21:53:08 +00:00
Rafael Espindola
dcb03f0f6b Emit .comm alignment in bytes but .align in powers of 2 for ARM ELF. 
Original patch by Sandeep Patel and updated by me.

llvm-svn: 94582
 2010-01-26 20:21:43 +00:00
Chris Lattner
3dd38a8112 eliminate MCAsmInfo::NeedsSet: we now just use .set on any platform 
that has it.

llvm-svn: 94581
 2010-01-26 20:20:43 +00:00
Evan Cheng
555f61bf58 Implement cond ? -1 : 0 with sbb. 
llvm-svn: 94490
 2010-01-26 02:00:44 +00:00