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Author SHA1 Message Date
Chris Lattner
5563a38088 when the bitcode reader is referencing a paramattr, make sure to bump its refcount. 
llvm-svn: 48276
 2008-03-12 02:25:52 +00:00
Evan Cheng
ee092b2dfc Total brain cramp. 
llvm-svn: 48274
 2008-03-12 02:05:05 +00:00
Chris Lattner
1eca74f70e This is a simple fix for getting error messages from dlerror in 
LoadLibraryPermanently. The current code modifies the value of a pointer
that is passed by value, so the caller never gets the message.

Patch by Julien Lerouge!

llvm-svn: 48270
 2008-03-12 00:50:01 +00:00
Dale Johannesen
19b4c2dfaf One more bit of Altivec parameter passing. 
llvm-svn: 48269
 2008-03-12 00:49:20 +00:00
Anton Korobeynikov
192ff9b2d3 Be backward compatible 
llvm-svn: 48268
 2008-03-12 00:49:19 +00:00
Devang Patel
0b10747ac8 Check multiple return values. 
llvm-svn: 48267
 2008-03-12 00:32:32 +00:00
Dan Gohman
2a124430e9 Make this test x86-specific for now; targets that don't use 
the automated CallingConv code to handle return values typically
don't support multiple return values.

llvm-svn: 48265
 2008-03-12 00:25:14 +00:00
Dale Johannesen
460dc31418 Implement Altivec passing to varargs functions on ppc. 
llvm-svn: 48264
 2008-03-12 00:22:17 +00:00
Evan Cheng
1812351f99 Set NextMII after issuing a physical register spill. 
llvm-svn: 48263
 2008-03-12 00:14:07 +00:00
Devang Patel
9e4d8236fc Fix attribute handling. 
llvm-svn: 48262
 2008-03-12 00:07:03 +00:00
Evan Cheng
909992f970 Minor debug output bug. 
llvm-svn: 48261
 2008-03-12 00:02:46 +00:00
Dan Gohman
155ffdd955 Basic feature test for multiple return values in codegen. 
llvm-svn: 48260
 2008-03-11 23:53:16 +00:00
Anton Korobeynikov
a69bd8b0e6 Ultimately resolve aliases during linking, if possible 
llvm-svn: 48259
 2008-03-11 22:51:09 +00:00
Anton Korobeynikov
d2fd135594 Testcase for PR2137 
llvm-svn: 48258
 2008-03-11 22:43:42 +00:00
Anton Korobeynikov
55f54ba252 Correctly propagate thread-local flag from aliasee to alias. This fixes PR2137 
llvm-svn: 48257
 2008-03-11 22:38:53 +00:00
Dan Gohman
8e3c88c4e9 Use PassManagerBase instead of FunctionPassManager for functions 
that merely add passes. This allows them to be used with either
FunctionPassManager or PassManager, or even with a custom new
kind of pass manager.

llvm-svn: 48256
 2008-03-11 22:29:46 +00:00
Anton Korobeynikov
38bc6e43f7 Add helper for ultimate aliasee resoltion 
llvm-svn: 48255
 2008-03-11 22:28:56 +00:00
Devang Patel
54b2c77a4e Handle multiple ret values. 
llvm-svn: 48254
 2008-03-11 22:24:29 +00:00
Devang Patel
0fbeba7276 Initialize. 
llvm-svn: 48253
 2008-03-11 22:08:21 +00:00
Dan Gohman
34ea45f10d Check to see if a two-entry PHI block can be simplified 
before trying to merge the block into its predecessors.
This allows two-entry-phi-return.ll to be simplified
into a single basic block.

llvm-svn: 48252
 2008-03-11 21:53:06 +00:00
Dan Gohman
05907c9f06 Make this test more challenging to help it avoid being 
optimized away before it tests what it is intended to test.

llvm-svn: 48251
 2008-03-11 21:47:57 +00:00
Anton Korobeynikov
efa9405b94 Update testcase for recent aliases change 
llvm-svn: 48250
 2008-03-11 21:42:20 +00:00
Anton Korobeynikov
aa1433ab47 Honour aliases visibility during asm emission 
llvm-svn: 48249
 2008-03-11 21:41:14 +00:00
Anton Korobeynikov
9b16a36886 Honour aliases visibility when reading from/writing to bitcode 
llvm-svn: 48248
 2008-03-11 21:40:17 +00:00
Dan Gohman
f9f25bd41b Add a test to ensure that all-ones vectors are materialized with pcmpeqd. 
llvm-svn: 48247
 2008-03-11 21:37:00 +00:00
Evan Cheng
665363494f Transfer physical register spill info when load / store folding happens. 
llvm-svn: 48246
 2008-03-11 21:34:46 +00:00
Dan Gohman
1fece90de9 Use the correct value for InSignBit. 
llvm-svn: 48245
 2008-03-11 21:29:43 +00:00
Dan Gohman
55a443d612 Initial codegen support for functions and calls with multiple return values. 
llvm-svn: 48244
 2008-03-11 21:11:25 +00:00
Chris Lattner
fd2c24af72 Implement basic support for the 'f' register class constraint. This basically 
works, but probably won't if you mix it with 't' or 'u' yet.

llvm-svn: 48243
 2008-03-11 19:50:13 +00:00
Chris Lattner
4458eecb7a coalesce away 80-bit floating point copies. 
llvm-svn: 48241
 2008-03-11 19:30:09 +00:00
Chris Lattner
aa2287714e convert a massive if statement to a switch. 
llvm-svn: 48240
 2008-03-11 19:28:17 +00:00
Chris Lattner
b3fefb1e5c start handling the 'f' x87 constraint. 
llvm-svn: 48239
 2008-03-11 19:06:29 +00:00
Devang Patel
0c7fb89803 Skip functions that return multiple values. 
llvm-svn: 48233
 2008-03-11 18:04:06 +00:00
Dale Johannesen
c03216ac3e The feature this is testing did not work in the general case, 
and has been removed.

llvm-svn: 48232
 2008-03-11 17:48:26 +00:00
Devang Patel
5f5912ba27 Fix getOperand() for ReturnInst. 
llvm-svn: 48229
 2008-03-11 17:35:03 +00:00
Devang Patel
cb8f342ea8 Become multiple return value aware. 
Right now, the pass does not optimize tail recursions 
involving multiple return values.

llvm-svn: 48228
 2008-03-11 17:33:32 +00:00
Devang Patel
e163bda565 Add TODO reminder. 
llvm-svn: 48227
 2008-03-11 17:32:05 +00:00
Dan Gohman
2b0112a65a Give PassManager and FunctionPassManager a common base class, with 
add(Pass *) as a pure virtual member function. This will allow all
the various addPassesTo* functions in LLVM to avoid hard-coding what
type of PassManager is used. 

llvm-svn: 48226
 2008-03-11 16:41:42 +00:00
Dan Gohman
54b152cbbf Fix typos in comments. 
llvm-svn: 48225
 2008-03-11 16:18:48 +00:00
Christopher Lamb
4d5034cf91 Missed part of recommit. 
llvm-svn: 48224
 2008-03-11 10:27:36 +00:00
Christopher Lamb
74f4d837df Recommitting parts of r48130. These do not appear to cause the observed failures. 
llvm-svn: 48223
 2008-03-11 10:09:17 +00:00
Christopher Lamb
97376d2df6 Recommitting changes after more testing. These appear to cause no problems. 
llvm-svn: 48222
 2008-03-11 09:33:47 +00:00
Evan Cheng
794f4ee703 Use TargetRegisterInfo::getPhysicalRegisterRegClass. Remove duplicated code. 
llvm-svn: 48221
 2008-03-11 07:55:13 +00:00
Evan Cheng
318a01e5fb If there are multiple register classes that a register belongs to, return the super-class (e.g. on x86, returns GR32, not GR32_). 
llvm-svn: 48220
 2008-03-11 07:54:14 +00:00
Evan Cheng
6a30fc4e94 Learn how to xfail a test. 
llvm-svn: 48219
 2008-03-11 07:51:31 +00:00
Evan Cheng
af1c76846d When the register allocator runs out of registers, spill a physical register around the def's and use's of the interval being allocated to make it possible for the interval to target a register and spill it right away and restore a register for uses. This likely generates terrible code but is before than aborting. 
llvm-svn: 48218
 2008-03-11 07:19:34 +00:00
Evan Cheng
53213ba056 In 32-bit mode, mark 64-bit GPR's as unallocatable. 
llvm-svn: 48217
 2008-03-11 07:16:00 +00:00
Evan Cheng
9ae65a13c3 XFAIL due to Dale's change. 
llvm-svn: 48216
 2008-03-11 07:15:44 +00:00
Duncan Sands
1b059ad5d5 Some LegalizeTypes code factorization and minor 
enhancements.

llvm-svn: 48215
 2008-03-11 06:41:14 +00:00
Chris Lattner
3241d0df37 compile: double test() {} 
into:

_test:
	fldz
	ret

instead of:

_test:
	subl	$12, %esp
	#IMPLICIT_DEF %xmm0
	movsd	%xmm0, (%esp)
	fldl	(%esp)
	addl	$12, %esp
	ret

llvm-svn: 48213
 2008-03-11 06:21:08 +00:00