b6b2164e28
add an x86 implementation of MCTargetExpr for
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representing @GOT and friends. Use it for
personality references as a first use.
llvm-svn: 95588
2010-02-08 22:09:08 +00:00
4268d6a7c3
When CodeGen'ing unoptimized code, there may be unfolded constant expressions
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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
bd374da130
In guaranteed tailcall mode, don't decline the tailcall optimization
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for blocks ending in "unreachable".
llvm-svn: 95565
2010-02-08 20:34:14 +00:00
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
c72f7882c0
Remove a large test case that (soon will) no longer make sense.
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llvm-svn: 95492
2010-02-06 09:00:30 +00:00
4536b9a904
Fix alignment on ppc linux. This fixes the build of crtend.o
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llvm-svn: 95477
2010-02-06 03:32:21 +00:00
d064aefefc
Do not emit callseq instructions around sibcalls. This eliminated some unnecessary stack adjustments.
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llvm-svn: 95475
2010-02-06 03:28:46 +00:00
5638c36efd
Handle AddrMode6 (for NEON load/stores) in Thumb2's rewriteT2FrameIndex.
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Radar 7614112.
llvm-svn: 95456
2010-02-06 00:24:38 +00:00
5f9ead2714
Don't unroll loops containing function calls.
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llvm-svn: 95454
2010-02-05 23:21:31 +00:00
994da1a479
Make test more fucused eliminating extraneous bits.
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llvm-svn: 95384
2010-02-05 11:21:05 +00:00
c8b4db77be
Fix test.
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llvm-svn: 95373
2010-02-05 06:37:00 +00:00
a366c61f77
Handle tail call with byval arguments.
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llvm-svn: 95351
2010-02-05 02:21:12 +00:00
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.
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rdar://7604000
llvm-svn: 95339
2010-02-05 01:27:11 +00:00
6510dc8dc3
An empty global constant (one of size 0) may have a section immediately
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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
c7c89b8325
Fix small bug in handling instructions with more than one implicitly defined operand.
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ProcessImplicitDefs would only mark one operand per instruction with <undef>.
This fixed PR6086.
llvm-svn: 95319
2010-02-04 18:46:28 +00:00
aeba2250a5
Re-enable x86 tail call optimization.
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llvm-svn: 95295
2010-02-04 06:47:24 +00:00
8228b11abc
add support for the sparcv9-*-* target triple to turn on
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64-bit sparc codegen. Patch by Nathan Keynes!
llvm-svn: 95293
2010-02-04 06:34:01 +00:00
f4139067ee
Speculatively disable x86 automatic tail call optimization while we track down a self-hosting issue.
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llvm-svn: 95259
2010-02-03 21:40:40 +00:00
112a871fe2
Make test less fragile
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llvm-svn: 95258
2010-02-03 21:39:04 +00:00
27a41d5473
Revert 94937 and move the noreturn check to codegen.
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llvm-svn: 95198
2010-02-03 03:55:59 +00:00
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
a466692552
Reapply 95050 with a tweak to check the register class.
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llvm-svn: 95183
2010-02-03 01:40:33 +00:00
dee74e2805
make these less sensitive to asm verbose changes by disabling it for them.
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llvm-svn: 95175
2010-02-03 00:48:53 +00:00
da431c76fb
Test revert 95050; there's a good chance it's causing
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buildbot failure.
llvm-svn: 95103
2010-02-02 18:52:56 +00:00
55afd2564c
Perform sibcall in some cases when arguments are passes memory. Look for cases
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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
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
a49d8e6d38
Fix PR6196. GV callee may not be a function.
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llvm-svn: 95017
2010-02-01 22:40:09 +00:00
36bca4e4ba
Update this test for a trivial register allocation difference.
...
llvm-svn: 94989
2010-02-01 19:00:32 +00:00
ed8ca56eeb
Undo r94946 now all the tests are passing again.
...
llvm-svn: 94970
2010-02-01 02:13:39 +00:00
7f62def0f9
Avoid recursive sibcall's.
...
llvm-svn: 94946
2010-01-31 06:44:49 +00:00
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
70f714fdbe
Allow more tailcall optimization: calls with inputs that are all passed in registers.
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llvm-svn: 94873
2010-01-30 01:22:00 +00:00
297a494f55
Catch more trivial tail call opportunities: no inputs and output types match.
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llvm-svn: 94804
2010-01-29 06:45:59 +00:00
cc9a6f0580
convert the last 3 targets to use EmitFunctionBody() now that
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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
346af88396
Fix a bug introduced by r94490 where it created a X86ISD::CMP whose output type is different from its inputs.
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This fixes PR6146.
llvm-svn: 94731
2010-01-28 01:57:22 +00:00
73de5fbfc3
Give AsmPrinter the most common expected implementation of
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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
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
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
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
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
dcb03f0f6b
Emit .comm alignment in bytes but .align in powers of 2 for ARM ELF.
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Original patch by Sandeep Patel and updated by me.
llvm-svn: 94582
2010-01-26 20:21:43 +00:00
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
555f61bf58
Implement cond ? -1 : 0 with sbb.
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llvm-svn: 94490
2010-01-26 02:00:44 +00:00
4cb52db485
Update test for darwin.
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llvm-svn: 94421
2010-01-25 15:32:10 +00:00
9b83727cfe
we removed support for darwin8 tools.
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llvm-svn: 94414
2010-01-25 07:43:40 +00:00
a1141dd6ab
Fix PR6134.
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We are not emitting alignments on Darwin for "bar". Not sure what is the
correct way to do it.
llvm-svn: 94400
2010-01-25 02:27:39 +00:00
75652a6f2b
Attempt to unbreak test on Linux. Chris, please check.
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llvm-svn: 94399
2010-01-25 00:54:13 +00:00
45dd2327cb
just remove this test, it is not reduced, is not clear what its testing for and
...
it is dying due to fragility in the asmprinter .s comments.
llvm-svn: 94372
2010-01-24 19:23:09 +00:00
4f45512c23
It seems better to scalarize vectors of size 1 instead of widening them.
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Add support to widen SETCC.
llvm-svn: 94342
2010-01-24 00:24:43 +00:00
586d997e98
Improved widening loads by adding support for wider loads if
...
the alignment allows. Fixed a bug where we didn't use a
vector load/store for PR5626.
llvm-svn: 94338
2010-01-24 00:05:03 +00:00
Chris Lattner