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6552 Commits

Author SHA1 Message Date
Eli Friedman
27759f41ca PR3686: make the legalizer handle bitcast from i80 to x86 long double. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66021 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 06:23:34 +00:00
Dan Gohman
29582d1223 Revert r66004 for now; it's causing a variety of test failures. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66008 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 03:54:19 +00:00
Evan Cheng
10029df79a Rename test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66006 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 02:47:25 +00:00
Dan Gohman
12bbc52aa7 Teach the x86 backend to eliminate "test" instructions by using the EFLAGS 
result from add, sub, inc, and dec instructions in simple cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66004 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 02:33:24 +00:00
Evan Cheng
599a6a88ce 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65996 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 01:41:49 +00:00
Devang Patel
7f6179d1d8 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65994 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 01:22:23 +00:00
Dale Johannesen
0d6596b7bf Make my earlier patch to skip debug intrinsics 
when counting work; it was only off by 1.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65993 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 01:20:34 +00:00
Bill Wendling
36ae6c1827 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65985 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 00:18:06 +00:00
Dale Johannesen
4ded40a44d Instruction counters must skip the bitcasts that 
feed into llvm.dbg.declare nodes, as well as
the debug directives themselves.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65976 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 22:36:47 +00:00
Dale Johannesen
4945c65784 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65970 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 21:26:39 +00:00
Bill Wendling
1c85503e38 Remove accidental check-ins in r65960. :-( 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65961 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 19:25:16 +00:00
Bill Wendling
3aaf5d9933 Use > instead of >=. We want to promote aggregates of 128-bytes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65960 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 19:18:49 +00:00
Zhou Sheng
7e4286eb7c Ignore the debug info intrinsics when adding instructions into alias sets. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65934 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 06:02:04 +00:00
Dale Johannesen
1d62705847 Testcase for line number sinking in InstCombine. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65911 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 01:10:01 +00:00
Devang Patel
cf42ee42b1 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65902 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-02 23:39:14 +00:00
Duncan Sands
5b7cfb02f7 Fix PR3694: add an instcombine micro-optimization that helps 
clean up when using variable length arrays in llvm-gcc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65832 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-02 09:18:21 +00:00
Nate Begeman
cbd88adea6 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



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65791 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-01 23:44:07 +00:00
Duncan Sands
358f24943a Functions marked malloc are noalias return. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65775 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-01 16:19:31 +00:00
Duncan Sands
d14e9e78e4 Adjust this test for recent llvm-gcc changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65771 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-01 15:01:51 +00:00
Evan Cheng
870b80722f 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65752 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-01 02:03:43 +00:00
Chris Lattner
890484984b tweak this to accept asmprinter changes. I have no way to verify this, hopefully 
the buildbot will work.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65750 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-01 01:28:40 +00:00
Chris Lattner
f6f0bdfec3 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65743 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-01 00:53:13 +00:00
Chris Lattner
585cfb6821 adjust for asmprinter change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65741 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-01 00:26:51 +00:00
Chris Lattner
3aa8f6bc11 adjust for asmprinter change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65740 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-01 00:25:46 +00:00
Chris Lattner
13397b97ee adjust test to make it more robust 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65739 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-01 00:24:40 +00:00
Chris Lattner
413fd2304d 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65738 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-01 00:03:38 +00:00
Chris Lattner
d3fc0a15c7 one less space, fixes failure with rebuilt llvm-gcc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65728 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-28 22:20:02 +00:00
Bill Wendling
da3e7057cc There is a way to specify targets that should succeed. It's the "XTARGET" 
keyword.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65692 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-28 12:11:01 +00:00
Evan Cheng
c8bb37a50a Last commit accidentially deleted this code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65679 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-28 06:02:14 +00:00
Stuart Hastings
7cbb95fa69 Unable to say "TARGET: *-*-darwin*"; falling back to "XFAIL: linux,ia64,alpha,sparc". 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65667 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-28 00:56:37 +00:00
Stuart Hastings
b1789b003c Testcase to insure C strings go to the cstring 
section. Darwin-specific.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65655 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-27 22:35:12 +00:00
Rafael Espindola
9a58023c6c 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.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65632 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-27 13:37:18 +00:00
Evan Cheng
98f122fc40 Make sure this test passes on linux-ppc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65600 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-27 00:51:50 +00:00
Dan Gohman
30fe9e4444 Update another test for the LoopInfo::print changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65598 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-27 00:20:19 +00:00
Dan Gohman
d4b3a37f96 Update this test for the LoopInfo::print changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65597 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-27 00:17:49 +00:00
Evan Cheng
efc783951c MachineLICM CSE should match destination register classes; avoid hoisting implicit_def's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65592 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-27 00:02:22 +00:00
Chris Lattner
cd45eaa80a 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65564 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-26 19:19:26 +00:00
Zhou Sheng
a8d57fe96b Ignore dbg info intrinsics when folding conditional branch to 
conditional branch predecessors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65509 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-26 06:56:37 +00:00
Evan Cheng
236aa8a503 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65499 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-26 03:12:02 +00:00
Evan Cheng
04cf3e39f3 The last commit was overly conservative. It's ok to reuse value that's already marked livein. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65498 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-26 03:02:21 +00:00
Julien Lerouge
1aa1f74a09 Fix a typo that prevents hello.mm from running (and runs hello.m twice). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65493 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-26 00:16:33 +00:00
Evan Cheng
a87008d90b Revert BuildVectorSDNode related patches: 65426, 65427, and 65296. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65482 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-25 22:49:59 +00:00
Chris Lattner
58b1ac76d4 Fix PR3667 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65464 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-25 18:20:01 +00:00
Duncan Sands
411c285404 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65463 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-25 18:10:49 +00:00
Zhou Sheng
9a7c743fc0 Don't block basic block with only SwitchInst to fold into predecessors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65456 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-25 15:34:27 +00:00
Dan Gohman
46bdfb0e6b Rename ScalarEvolution's getIterationCount to getBackedgeTakenCount, 
to more accurately describe what it does. Expand its doxygen comment
to describe what the backedge-taken count is and how it differs
from the actual iteration count of the loop. Adjust names and
comments in associated code accordingly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65382 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-24 18:55:53 +00:00
Bill Wendling
5aa4977fba - Use the "Fast" flag instead of "OptimizeForSize" to determine whether to emit 
a DBG_LABEL or not. We want to fall back to the original way of emitting debug
  info when we're in -O0/-fast mode.
- Add plumbing in to pass the "Fast" flag to places that need it.
- XFAIL DebugInfo/deaddebuglabel.ll. This is finding 11 labels instead of 8. I
  need to investigate still.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65367 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-24 02:35:30 +00:00
Dan Gohman
85937de26b Add a testcase for the problem fixed in r65289. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65365 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-24 02:17:42 +00:00
Dan Gohman
0001e56f15 Fix a ValueTracking rule: RHS means operand 1, not 0. Add a simple 
ashr instcombine to help expose this code. And apply the fix to
SelectionDAG's copy of this code too.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65364 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-24 02:00:40 +00:00
Bill Wendling
d1d1c8b3d5 Un-XFAIL this test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65355 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-24 00:37:28 +00:00