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25215 Commits

Author SHA1 Message Date
Dan Gohman 7847142f26 Correct the name of isTrapping in comments. 
llvm-svn: 57606
 2008-10-15 22:56:21 +00:00
Anton Korobeynikov 006659f08d Also properly handle linking of strong alias and weak global 
llvm-svn: 57595
 2008-10-15 20:10:50 +00:00
Anton Korobeynikov 82dd61114d Properly handle linking of strong alias with weak function, this fixes PR2883 
llvm-svn: 57594
 2008-10-15 20:10:08 +00:00
Dan Gohman c7e00ba60f Fix a missing space after the return type in invoke statements. 
This fixes PR2894.

llvm-svn: 57589
 2008-10-15 18:02:08 +00:00
Chris Lattner 9b83197b76 move PR1941 here. 
llvm-svn: 57586
 2008-10-15 16:33:52 +00:00
Chris Lattner 6d275fd6e1 move PR1604 here. 
llvm-svn: 57582
 2008-10-15 16:06:03 +00:00
Chris Lattner 843dacc937 move PR1488 into this file. 
llvm-svn: 57579
 2008-10-15 16:02:15 +00:00
Nuno Lopes 6cbd4430cc regenerate 
llvm-svn: 57577
 2008-10-15 12:05:02 +00:00
Nuno Lopes 99f3dc6798 fix memleak in GetForwardRefForGlobal() 
llvm-svn: 57576
 2008-10-15 12:04:36 +00:00
Nuno Lopes 6f6e4e94be regenerate 
llvm-svn: 57575
 2008-10-15 11:20:21 +00:00
Nuno Lopes a4a546cb40 fix memleak in getTypeVal() 
llvm-svn: 57574
 2008-10-15 11:19:34 +00:00
Nuno Lopes bb683f953e regenerate 
llvm-svn: 57573
 2008-10-15 11:11:12 +00:00
Nuno Lopes 48e9028000 fix memleak in ResolveTypeTo() 
llvm-svn: 57572
 2008-10-15 11:10:21 +00:00
Dan Gohman 29ad439782 Now that predicates can be composed, simplify several of 
the predicates by extending simple predicates to create
more complex predicates instead of duplicating the logic
for the simple predicates.

This doesn't reduce much redundancy in DAGISelEmitter.cpp's
generated source yet; that will require improvements to
DAGISelEmitter.cpp's instruction sorting, to make it more
effectively group nodes with similar predicates together.

llvm-svn: 57565
 2008-10-15 06:50:19 +00:00
Chris Lattner 3f399451cd regenerate 
llvm-svn: 57561
 2008-10-15 06:16:57 +00:00
Chris Lattner 25f74dc574 Fix the .ll grammar rules to allow any type before an 'i32', not just an 
integer type.  Invalid things like 'float 42' are now rejected by the
semantic analysis in the productions not the parser.  This fixes PR2733.

llvm-svn: 57560
 2008-10-15 06:16:45 +00:00
Chris Lattner 9535c94015 regenerate 
llvm-svn: 57559
 2008-10-15 06:03:48 +00:00
Chris Lattner d253878724 Eliminate the "IntType ::= INTTYPE" production, just use 
INTTYPE everywhere.

llvm-svn: 57558
 2008-10-15 06:03:37 +00:00
Chris Lattner 117792afec add a note 
llvm-svn: 57557
 2008-10-15 05:53:25 +00:00
Chris Lattner ddb17ce4be add support for folding immediates into stores when they 
are due to argument passing in calls.  This is significant because
it hits all immediate arguments to calls on x86-32.

llvm-svn: 57556
 2008-10-15 05:38:32 +00:00
Chris Lattner 3ba293564a fold immediates into stores in simple cases, this produces diffs like 
this:

-	movl	$0, %eax
-	movl	%eax, _yy_n_chars
+	movl	$0, _yy_n_chars

llvm-svn: 57555
 2008-10-15 05:30:52 +00:00
Chris Lattner e388725aef fold compare of null pointer into compare with 0. 
llvm-svn: 57553
 2008-10-15 05:18:04 +00:00
Chris Lattner a0f9d4972f Some minor cleanups: 
1. Compute action in X86SelectSelect based on MVT instead of type.
2. Use TLI.getValueType(..) instead of MVT::getVT(..) because the former
   handles pointers and the later doesn't.
3. Don't pass TLI into isTypeLegal, since it already has access to it as 
   an ivar.

#2 gives fast isel some minor new functionality: handling load/stores of
pointers.

llvm-svn: 57552
 2008-10-15 05:07:36 +00:00
Chris Lattner 74e012839d Use switch on VT instead of Type* comparisons. 
llvm-svn: 57551
 2008-10-15 04:32:45 +00:00
Chris Lattner dc1c380f23 Use X86FastEmitCompare for FCMP_OEQ and FCMP_UNE: it doesn't 
change the generated code, but makes the code simpler.

llvm-svn: 57550
 2008-10-15 04:29:23 +00:00
Chris Lattner d46b9510b6 refactor compare emission out into a new X86FastEmitCompare method, 
which makes it easy to share the compare/imm folding logic with 'setcc'.
This shaves a bunch of instructions off the common select case, which
happens a lot in llvm-gcc.

llvm-svn: 57549
 2008-10-15 04:26:38 +00:00
Chris Lattner 88f4754f8f Fold immediates into compares when possible, producing "cmp $4, %eax" instead of 
loading 4 into a register and then doing the compare.

llvm-svn: 57548
 2008-10-15 04:13:29 +00:00
Chris Lattner 47bef25c01 more minor refactoring of X86SelectBranch, no functionality change. 
llvm-svn: 57547
 2008-10-15 04:02:26 +00:00
Chris Lattner 0ce717ac6b factor buildmi calls in X86SelectBranch 
llvm-svn: 57546
 2008-10-15 03:58:05 +00:00
Chris Lattner f32ce221e4 factor some more BuildMI's in X86SelectCmp 
llvm-svn: 57545
 2008-10-15 03:52:54 +00:00
Chris Lattner a3596db462 factor some BuildMI calls, no functionality change. 
llvm-svn: 57544
 2008-10-15 03:47:17 +00:00
Dan Gohman 4459c4250d Adjust whitespace in debug messages to be more consistent 
with other debug messages.

llvm-svn: 57543
 2008-10-15 02:57:38 +00:00
Evan Cheng 3b0f5e4d61 - Add target lowering hooks that specify which setcc conditions are illegal, 
i.e. conditions that cannot be checked with a single instruction. For example,
SETONE and SETUEQ on x86.
- Teach legalizer to implement *illegal* setcc as a and / or of a number of
legal setcc nodes. For now, only implement FP conditions. e.g. SETONE is
implemented as SETO & SETNE, SETUEQ is SETUO | SETEQ.
- Move x86 target over.

llvm-svn: 57542
 2008-10-15 02:05:31 +00:00
Dan Gohman e7ced74558 FastISel support for exception-handling constructs. 
- Move the EH landing-pad code and adjust it so that it works
   with FastISel as well as with SDISel.
 - Add FastISel support for @llvm.eh.exception and
   @llvm.eh.selector.

llvm-svn: 57539
 2008-10-14 23:54:11 +00:00
Daniel Dunbar 0f8155ae4e Prevent assert when using '"' in names (via hexadecimal). 
Update LangRef to mention \xx quoting in names.

llvm-svn: 57538
 2008-10-14 23:51:43 +00:00
Daniel Dunbar 389529a7df Change getLLVMName to use raw_ostream & PrintLLVMName. 
- Avoids duplicated quotification code.
 - Remove QuoteNameIfNeeded.
 - No functionality change.

llvm-svn: 57537
 2008-10-14 23:28:09 +00:00
Dale Johannesen 28106756af Accept -march=i586, because gcc does (a synonym 
for pentium).  Fixes
gcc.target/i386/20000720-1.c
gcc.target/i386/pr26826.c

llvm-svn: 57528
 2008-10-14 22:06:33 +00:00
Evan Cheng 07d53b1d33 Rename LoadX to LoadExt. 
llvm-svn: 57526
 2008-10-14 21:26:46 +00:00
Jim Grosbach b7c01f5f48 Update ARM Insn encoding to get endian-ness to match the documentation (31-0 left to right) 
llvm-svn: 57524
 2008-10-14 20:36:24 +00:00
Dan Gohman 9c4b7d5c4f Fix command-line option printing to print two spaces where needed, 
instead of requiring all "short description" strings to begin with
two spaces. This makes these strings less mysterious, and it fixes
some cases where short description strings mistakenly did not
begin with two spaces.

llvm-svn: 57521
 2008-10-14 20:25:08 +00:00
Evan Cheng d885f6e139 Combine (fcmp cc0 x, y) | (fcmp cc1 x, y) into a single fcmp when possible. 
llvm-svn: 57515
 2008-10-14 18:44:08 +00:00
Evan Cheng ce70752b11 - Somehow I forgot about one / une. 
- Renumber fcmp predicates to match their icmp counterparts.
- Try swapping operands to expose more optimization opportunities.

llvm-svn: 57513
 2008-10-14 18:13:38 +00:00
Evan Cheng c36231b95e Fix indentation. 
llvm-svn: 57508
 2008-10-14 17:15:39 +00:00
Evan Cheng 67786cce66 Optimize anding of two fcmp into a single fcmp if the operands are the same. e.g. uno && ueq -> ueq 
ord && olt -> olt
     ord && ueq -> oeq

llvm-svn: 57507
 2008-10-14 17:15:11 +00:00
Nuno Lopes a67f06b9c7 little optimization: reuse getPointerToGlobalIfAvailable(CGV) value in emitGlobals() 
llvm-svn: 57484
 2008-10-14 10:04:52 +00:00
Dan Gohman 56b6885104 When doing the very-late shift-and address-mode optimization, 
create a new DAG node to represent the new shift to keep the
DAG consistent, even though it'll almost always be folded into
the address.

If a user of the resulting address has multiple uses, the
nodes may get revisited by a later MatchAddress call, in which
case DAG inconsistencies do matter.

This fixes PR2849.

llvm-svn: 57465
 2008-10-13 20:52:04 +00:00
Evan Cheng da9b752883 FIX PR2794. Make sure SIGN_EXTEND_INREG nodes introduced by LegalizeSetCCOperands are leglized. Patch by Richard Pennington. 
llvm-svn: 57460
 2008-10-13 18:46:18 +00:00
Evan Cheng 4c499c4fa6 Also update sub-register intervals after a trivial computation is rematt'ed for a copy instruction. PR2775. 
llvm-svn: 57458
 2008-10-13 18:35:52 +00:00
Matthijs Kooijman f7d3cb5435 Make InstructionCombining::getBitCastOperand() recognize GEP instructions and 
constant expression with all zero indices as being the same as a bitcast.

llvm-svn: 57442
 2008-10-13 15:17:01 +00:00
Matthijs Kooijman 43686a6665 * Make TargetLowering not crash when TargetMachine::getTargetAsmInfo() returns 
null. This assumes that any target that does not have AsmInfo, does not
   support "LocAndDot".

llvm-svn: 57438
 2008-10-13 12:41:46 +00:00