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6558 Commits

Author SHA1 Message Date
Bill Wendling
640ccfdd49 Should have XFAILed this test. 
llvm-svn: 66086
 2009-03-04 22:29:34 +00:00
Bill Wendling
2eef9340a8 Temporarily revert r65994. It was causing rdar://6646455. 
llvm-svn: 66083
 2009-03-04 22:02:09 +00:00
Dan Gohman
31fb085c2e Re-apply 66008, now that the unfoldMemoryOperand bug is fixed. 
llvm-svn: 66058
 2009-03-04 19:44:21 +00:00
Chris Lattner
5051e7afde Fix PR3720 by properly propagating alignment information from memcpy/memmove 
onto element accesses.

llvm-svn: 66053
 2009-03-04 19:20:50 +00:00
Owen Anderson
fb7f64ea0d Add a restore folder, which shaves a dozen or so machineinstrs off oggenc. Update a testcase to check this. 
llvm-svn: 66029
 2009-03-04 08:52:31 +00:00
Evan Cheng
7d9019d0f3 Fix PR3666: isel calls to constant addresses. 
llvm-svn: 66024
 2009-03-04 06:48:53 +00:00
Eli Friedman
1bed40b86a PR3686: make the legalizer handle bitcast from i80 to x86 long double. 
llvm-svn: 66021
 2009-03-04 06:23:34 +00:00
Dan Gohman
6831e2c2a6 Revert r66004 for now; it's causing a variety of test failures. 
llvm-svn: 66008
 2009-03-04 03:54:19 +00:00
Evan Cheng
32eef2f73f Rename test. 
llvm-svn: 66006
 2009-03-04 02:47:25 +00:00
Dan Gohman
c6c669cc1e Teach the x86 backend to eliminate "test" instructions by using the EFLAGS 
result from add, sub, inc, and dec instructions in simple cases.

llvm-svn: 66004
 2009-03-04 02:33:24 +00:00
Evan Cheng
db402a7a49 Fix PR3701. 1. X86 target renamed eflags register to flags. This matches what llvm-gcc generates so codegen knows flags register is being clobbered by inline asm. 2. BURR scheduler should also check if inline asm nodes can clobber "live" physical registers. Previously it was only checking target nodes with implicit defs. 
llvm-svn: 65996
 2009-03-04 01:41:49 +00:00
Devang Patel
94ef615585 If a global constant is dead then global's debug info should not prevent the optimizer in deleting the global. And while deleting global, delete global's debug info also. 
llvm-svn: 65994
 2009-03-04 01:22:23 +00:00
Dale Johannesen
a6f7a45366 Make my earlier patch to skip debug intrinsics 
when counting work; it was only off by 1.

llvm-svn: 65993
 2009-03-04 01:20:34 +00:00
Bill Wendling
93eeea0493 The DAG combiner was performing a BT combine. The BT combine had a value of -1, 
so it changed it into a 31 via the TLO.ShrinkDemandedConstant() call. Then it
would go through the DAG combiner again. This time it had a value of 31, which
was turned into a -1 by TLI.SimplifyDemandedBits(). This would ping pong
forever.

Teach the TLO.ShrinkDemandedConstant() call not to lower a value if the demanded
value is an XOR of all ones.

llvm-svn: 65985
 2009-03-04 00:18:06 +00:00
Dale Johannesen
81b6cd8ce5 Instruction counters must skip the bitcasts that 
feed into llvm.dbg.declare nodes, as well as
the debug directives themselves.

llvm-svn: 65976
 2009-03-03 22:36:47 +00:00
Dale Johannesen
ceed180d4c When removing a store to an alloca that has only one 
use, check also for the case where it has two uses,
the other being a llvm.dbg.declare.  This is needed so
debug info doesn't affect codegen.

llvm-svn: 65970
 2009-03-03 21:26:39 +00:00
Bill Wendling
7fdda71ad7 Remove accidental check-ins in r65960. :-( 
llvm-svn: 65961
 2009-03-03 19:25:16 +00:00
Bill Wendling
8244b700bf Use > instead of >=. We want to promote aggregates of 128-bytes. 
llvm-svn: 65960
 2009-03-03 19:18:49 +00:00
Zhou Sheng
1e7e86fec4 Ignore the debug info intrinsics when adding instructions into alias sets. 
llvm-svn: 65934
 2009-03-03 06:02:04 +00:00
Dale Johannesen
04fe3500c1 Testcase for line number sinking in InstCombine. 
llvm-svn: 65911
 2009-03-03 01:10:01 +00:00
Devang Patel
e98e6bc27c If branch conditions' one successor is dominating another non-latch successor then this loop's iteration space can not be restricted. In this example block bb5 is always executed. 
llvm-svn: 65902
 2009-03-02 23:39:14 +00:00
Duncan Sands
51ce06c788 Fix PR3694: add an instcombine micro-optimization that helps 
clean up when using variable length arrays in llvm-gcc.

llvm-svn: 65832
 2009-03-02 09:18:21 +00:00
Nate Begeman
6b41d33726 Fix a problem with DAGCombine on 64b targets where folding 
extracts + build_vector into a shuffle would fail, because the
type of the new build_vector would not be legal.  Try harder to
create a legal build_vector type.  Note: this will be totally 
irrelevant once vector_shuffle no longer takes a build_vector for
shuffle mask.

New:
_foo:
	xorps	%xmm0, %xmm0
	xorps	%xmm1, %xmm1
	subps	%xmm1, %xmm1
	mulps	%xmm0, %xmm1
	addps	%xmm0, %xmm1
	movaps	%xmm1, 0

Old:
_foo:
	xorps	%xmm0, %xmm0
	movss	%xmm0, %xmm1
	xorps	%xmm2, %xmm2
	unpcklps	%xmm1, %xmm2
	pshufd	$80, %xmm1, %xmm1
	unpcklps	%xmm1, %xmm2
	pslldq	$16, %xmm2
	pshufd	$57, %xmm2, %xmm1
	subps	%xmm0, %xmm1
	mulps	%xmm0, %xmm1
	addps	%xmm0, %xmm1
	movaps	%xmm1, 0

llvm-svn: 65791
 2009-03-01 23:44:07 +00:00
Duncan Sands
b55953cfc0 Functions marked malloc are noalias return. 
llvm-svn: 65775
 2009-03-01 16:19:31 +00:00
Duncan Sands
2a1baecb38 Adjust this test for recent llvm-gcc changes. 
llvm-svn: 65771
 2009-03-01 15:01:51 +00:00
Evan Cheng
276f9b02c5 Minor optimization: 
Look for situations like this:                                                                                                                                                              
%reg1024<def> = MOV r1                                                                                                                                                                      
%reg1025<def> = MOV r0                                                                                                                                                                      
%reg1026<def> = ADD %reg1024, %reg1025                                                                                                                                                      
r0            = MOV %reg1026                                                                                                                                                                
Commute the ADD to hopefully eliminate an otherwise unavoidable copy.

llvm-svn: 65752
 2009-03-01 02:03:43 +00:00
Chris Lattner
50be1d46f2 tweak this to accept asmprinter changes. I have no way to verify this, hopefully 
the buildbot will work.

llvm-svn: 65750
 2009-03-01 01:28:40 +00:00
Chris Lattner
a9611661b0 Fix a pretty awesome bug that only happened in a strange case with anonymous 
types.  This was reading the uint for the keyword after the token was advanced.

llvm-svn: 65743
 2009-03-01 00:53:13 +00:00
Chris Lattner
76fd170cbc adjust for asmprinter change. 
llvm-svn: 65741
 2009-03-01 00:26:51 +00:00
Chris Lattner
f8c9dfe644 adjust for asmprinter change. 
llvm-svn: 65740
 2009-03-01 00:25:46 +00:00
Chris Lattner
3680a9598e adjust test to make it more robust 
llvm-svn: 65739
 2009-03-01 00:24:40 +00:00
Chris Lattner
f270618038 Fix a long-standing bug and misfeature of the disassembler: when dealing with a 
stripped .bc file, it didn't make any attempt to try to reuse anonymous types.
This causes an amazing type explosion due to types getting duplicated everywhere
they are referenced and other problems.

This also caused correctness issues, because opaque types are unique for each time
they are uttered in the file.  This means that stripping a .bc file could produce
a .ll file that could not be assembled (e.g. 2009-02-28-StripOpaqueName.ll).

This patch fixes both of these issues.

llvm-svn: 65738
 2009-03-01 00:03:38 +00:00
Chris Lattner
d3bb67a595 one less space, fixes failure with rebuilt llvm-gcc. 
llvm-svn: 65728
 2009-02-28 22:20:02 +00:00
Bill Wendling
0b35200185 There is a way to specify targets that should succeed. It's the "XTARGET" 
keyword.

llvm-svn: 65692
 2009-02-28 12:11:01 +00:00
Evan Cheng
9c3ce7905e Last commit accidentially deleted this code. 
llvm-svn: 65679
 2009-02-28 06:02:14 +00:00
Stuart Hastings
2df75807ab Unable to say "TARGET: *-*-darwin*"; falling back to "XFAIL: linux,ia64,alpha,sparc". 
llvm-svn: 65667
 2009-02-28 00:56:37 +00:00
Stuart Hastings
ccf3b20973 Testcase to insure C strings go to the cstring 
section. Darwin-specific.

llvm-svn: 65655
 2009-02-27 22:35:12 +00:00
Rafael Espindola
880e63bf01 Refactor TLS code and add some tests. The tests and expected results are: 
pic |  declaration | linkage  | visibility |

!pic |  declaration | external | default    | tls1.ll     tls2.ll     | local exec
 pic |  declaration | external | default    | tls1-pic.ll tls2-pic.ll | general dynamic
!pic | !declaration | external | default    | tls3.ll     tls4.ll     | initial exec
 pic | !declaration | external | default    | tls3-pic.ll tls4-pic.ll | general dynamic

!pic |  declaration | external | hidden     | tls7.ll     tls8.ll     | local exec
 pic |  declaration | external | hidden     | X                       | local dynamic
!pic | !declaration | external | hidden     | tls9.ll     tls10.ll    | local exec
 pic | !declaration | external | hidden     | X                       | local dynamic

!pic |  declaration | internal | default    | tls5.ll     tls6.ll     | local exec
 pic |  declaration | internal | default    | X                       | local dynamic

The ones marked with an X have not been implemented since local dynamic is not implemented.

llvm-svn: 65632
 2009-02-27 13:37:18 +00:00
Evan Cheng
257e065df6 Make sure this test passes on linux-ppc. 
llvm-svn: 65600
 2009-02-27 00:51:50 +00:00
Dan Gohman
9385e139d0 Update another test for the LoopInfo::print changes. 
llvm-svn: 65598
 2009-02-27 00:20:19 +00:00
Dan Gohman
06c6037d9f Update this test for the LoopInfo::print changes. 
llvm-svn: 65597
 2009-02-27 00:17:49 +00:00
Evan Cheng
0ca6e3dba5 MachineLICM CSE should match destination register classes; avoid hoisting implicit_def's. 
llvm-svn: 65592
 2009-02-27 00:02:22 +00:00
Chris Lattner
1f9a1fc2dd make sure that make fully evaluates variables when determining how compile_c and 
friends should work.  This fixes 2006-11-30-Pubnames.cpp and friends on darwin
with the new -mmacosx-version-min change.

llvm-svn: 65564
 2009-02-26 19:19:26 +00:00
Zhou Sheng
670d50e102 Ignore dbg info intrinsics when folding conditional branch to 
conditional branch predecessors.

llvm-svn: 65509
 2009-02-26 06:56:37 +00:00
Evan Cheng
4014a9a5b8 ADDS{D|S}rr_Int and MULS{D|S}rr_Int are not commutable. The users of these intrinsics expect the high bits will not be modified. 
llvm-svn: 65499
 2009-02-26 03:12:02 +00:00
Evan Cheng
86fc9440db The last commit was overly conservative. It's ok to reuse value that's already marked livein. 
llvm-svn: 65498
 2009-02-26 03:02:21 +00:00
Julien Lerouge
980b081d2a Fix a typo that prevents hello.mm from running (and runs hello.m twice). 
llvm-svn: 65493
 2009-02-26 00:16:33 +00:00
Evan Cheng
ec34226c2b Revert BuildVectorSDNode related patches: 65426, 65427, and 65296. 
llvm-svn: 65482
 2009-02-25 22:49:59 +00:00
Chris Lattner
1443cb8f77 Fix PR3667 
llvm-svn: 65464
 2009-02-25 18:20:01 +00:00
Duncan Sands
4111c9d34c Check that records with a known constant size are not 
copied field by LLVM field if the record has a variable
sized field in it.  The problem is that the LLVM field
will not completely cover the variable sized gcc field.

llvm-svn: 65463
 2009-02-25 18:10:49 +00:00