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Author SHA1 Message Date
Chris Lattner
6075477174 fix a critical bug where the generated table would say 
"1 strings to match" in a comment, which isn't gramatic.

llvm-svn: 113140
 2010-09-06 03:11:10 +00:00
Chris Lattner
b58e070f0c update cmake 
llvm-svn: 113139
 2010-09-06 02:58:25 +00:00
Chris Lattner
df487455cb factor the snazzy string matcher code that Daniel hates 
out of AsmMatcherEmitter.cpp into its own class.

llvm-svn: 113137
 2010-09-06 02:01:51 +00:00
Chris Lattner
9feb462669 slightly improve the runtime and code size of the Intrinsics info table by not 
comparing the "llvm." prefix in the memcmp, and not storing it in the string literal.

llvm-svn: 113136
 2010-09-06 01:44:44 +00:00
Chris Lattner
7576ffb974 speed up -gvn 3.4% on the testcase in PR7023 
llvm-svn: 113135
 2010-09-06 01:26:29 +00:00
Chris Lattner
4100881939 Teach loop rotate to hoist trivially invariant instructions 
in the duplicated block instead of duplicating them.  

Duplicating them into the end of the loop and the preheader 
means that we got a phi node in the header of the loop, 
which prevented LICM from hoisting them.  GVN would
usually come around later and merge the duplicated 
instructions so we'd get reasonable output... except that
anything dependent on the shoulda-been-hoisted value can't
be hoisted.  In PR5319 (which this fixes), a memory value
didn't get promoted.

llvm-svn: 113134
 2010-09-06 01:10:22 +00:00
Chris Lattner
818045f208 pull a simple method out of LICM into a new 
Loop::hasLoopInvariantOperands method. Remove
a useless and confusing Loop::isLoopInvariant(Instruction)
method, which didn't do what you thought it did.

No functionality change.

llvm-svn: 113133
 2010-09-06 01:05:37 +00:00
Chris Lattner
df0d49314e fit in 80 columns and don't crash on exit, fixes PR8080 
llvm-svn: 113123
 2010-09-05 23:09:30 +00:00
Chris Lattner
c0e5368884 remove some dead code. t2addrmode_imm8s4 is never used in a 
pattern, so there is no need to define a matching function.

llvm-svn: 113122
 2010-09-05 22:51:11 +00:00
Chris Lattner
92429b2601 fix inconsistent formatting. 
llvm-svn: 113121
 2010-09-05 22:43:56 +00:00
Chris Lattner
0bae45de26 cleanups: mark stuff static, only tagdecls should be in anon namespaces. 
llvm-svn: 113120
 2010-09-05 21:25:43 +00:00
Chris Lattner
bd47c48735 cleanups. 
llvm-svn: 113119
 2010-09-05 21:18:45 +00:00
Chris Lattner
091212f130 some random notes. 
llvm-svn: 113118
 2010-09-05 20:49:45 +00:00
Chris Lattner
6c08c3b321 add a comment about where this should eventually move. 
llvm-svn: 113117
 2010-09-05 20:33:40 +00:00
Chris Lattner
908d8e9de2 update this. 
llvm-svn: 113116
 2010-09-05 20:22:09 +00:00
Chris Lattner
e54b9e2332 more cleanups 
llvm-svn: 113115
 2010-09-05 20:13:07 +00:00
Chris Lattner
41d0913a1d Change lower atomic pass to use IntrinsicInst to simplify it a bit. 
llvm-svn: 113114
 2010-09-05 20:10:47 +00:00
Chris Lattner
fc6bf7cb34 eliminate some non-obvious casts. UndefValue isa Constant. 
llvm-svn: 113113
 2010-09-05 20:03:09 +00:00
Chris Lattner
4dccd368f3 fix PR8063, a crash in globalopt in the malloc analysis code. 
llvm-svn: 113109
 2010-09-05 17:20:46 +00:00
Lang Hames
af037cded6 Added initialisers for reduction rule counters. 
llvm-svn: 113108
 2010-09-05 13:42:32 +00:00
Nick Lewycky
d48f0c5718 Fix warning reported by MSVC++ builder. 
llvm-svn: 113106
 2010-09-05 09:11:38 +00:00
Nick Lewycky
97d03432c5 Switch FnSet to containing the ComparableFunction instead of a pointer to one. 
This reduces malloc traffic (yay!) and removes MergeFunctionsEqualityInfo.

llvm-svn: 113105
 2010-09-05 09:00:32 +00:00
Nick Lewycky
b505af7ec4 Fix many bugs when merging weak-strong and weak-weak pairs. We now merge all 
strong functions first to make sure they're the canonical definitions and then
do a second pass looking only for weak functions.

llvm-svn: 113104
 2010-09-05 08:22:49 +00:00
Chris Lattner
684ae57b8e implement rdar://6653118 - fastisel should fold loads where possible. 
Since mem2reg isn't run at -O0, we get a ton of reloads from the stack,
for example, before, this code:

int foo(int x, int y, int z) {
  return x+y+z;
}

used to compile into:

_foo:                                   ## @foo
	subq	$12, %rsp
	movl	%edi, 8(%rsp)
	movl	%esi, 4(%rsp)
	movl	%edx, (%rsp)
	movl	8(%rsp), %edx
	movl	4(%rsp), %esi
	addl	%edx, %esi
	movl	(%rsp), %edx
	addl	%esi, %edx
	movl	%edx, %eax
	addq	$12, %rsp
	ret

Now we produce:

_foo:                                   ## @foo
	subq	$12, %rsp
	movl	%edi, 8(%rsp)
	movl	%esi, 4(%rsp)
	movl	%edx, (%rsp)
	movl	8(%rsp), %edx
	addl	4(%rsp), %edx    ## Folded load
	addl	(%rsp), %edx     ## Folded load
	movl	%edx, %eax
	addq	$12, %rsp
	ret

Fewer instructions and less register use = faster compiles.

llvm-svn: 113102
 2010-09-05 02:18:34 +00:00
Jakob Stoklund Olesen
14f6dc4465 Remove dead code. 
Clobber ranges are no longer used when joining physical registers.
Instead, all aliases are checked for interference.

llvm-svn: 113084
 2010-09-04 21:09:33 +00:00
Chris Lattner
6c6f196725 fix this to work with allocators that have reference type with compilers 
that diagnose invalid references to references.

llvm-svn: 113078
 2010-09-04 18:45:02 +00:00
Chris Lattner
238e7c2fbe dead method. 
llvm-svn: 113077
 2010-09-04 18:19:16 +00:00
Chris Lattner
c3d0385834 delete dead code. 
llvm-svn: 113075
 2010-09-04 18:17:16 +00:00
Chris Lattner
8df3ffd7ac zap dead code. 
llvm-svn: 113073
 2010-09-04 18:12:00 +00:00
Chris Lattner
b5f94883b0 remove dead code, mblaze uses SelectAddrRegImm/SelectAddrRegReg, 
not SelectAddr

llvm-svn: 113072
 2010-09-04 18:02:47 +00:00
Chris Lattner
f92de84645 zap dead code. 
llvm-svn: 113071
 2010-09-04 17:45:58 +00:00
Bruno Cardoso Lopes
8d76bbe31c Remove the last bit of isShuffleMaskLegal checks and improve the comment regarding mmx shuffles 
llvm-svn: 113059
 2010-09-04 02:58:56 +00:00
Bruno Cardoso Lopes
fccf00be8c make explicit that we not handle several mmx shuffles 
llvm-svn: 113058
 2010-09-04 02:50:13 +00:00
Dan Gohman
e1ad0ebbcc Fix LoopSimplify to notify ScalarEvolution when splitting a loop backedge 
into an inner loop, as the new loop iteration may differ substantially.
This fixes PR8078.

llvm-svn: 113057
 2010-09-04 02:42:48 +00:00
Bruno Cardoso Lopes
0562140ec3 Emit target specific nodes to handle palignr. Do not touch it for MMX versions yet. 
llvm-svn: 113056
 2010-09-04 02:36:07 +00:00
Bruno Cardoso Lopes
73651844b2 Emit target specific nodes to handle splats starting at zero indicies 
llvm-svn: 113055
 2010-09-04 02:02:14 +00:00
Bruno Cardoso Lopes
483bb7eed2 Emit target specific nodes for isPSHUFHWMask and isPSHUFLWMask 
llvm-svn: 113050
 2010-09-04 01:36:45 +00:00
Bruno Cardoso Lopes
742030b3db Emit target specific nodes for isSHUFPMask 
llvm-svn: 113048
 2010-09-04 01:22:57 +00:00
Bruno Cardoso Lopes
3e3169873e Previous isMOVLMask matching already emits targets nodes, remove check 
llvm-svn: 113047
 2010-09-04 00:50:08 +00:00
Bruno Cardoso Lopes
b867456bfc One more check from the original isShuffleMaskLegal goes away 
llvm-svn: 113045
 2010-09-04 00:46:16 +00:00
Bruno Cardoso Lopes
3081ae493b Remove a duplicated but useless check that i've inserted in the previous commit. 
llvm-svn: 113044
 2010-09-04 00:43:12 +00:00
Bruno Cardoso Lopes
22775e6e65 Refactor some code and remove the extra checks for unpckl_undef and unpckh_undef 
llvm-svn: 113043
 2010-09-04 00:39:43 +00:00
Chris Lattner
2b77a2a167 fix a bug in my licm rewrite when a load from the promoted memory 
location is being re-stored to the memory location.  We would get
a dangling pointer from the SSAUpdate data structure and miss a 
use.  This fixes PR8068

llvm-svn: 113042
 2010-09-04 00:12:30 +00:00
Bruno Cardoso Lopes
5d71537f4a Remove check for unpckh mask 
llvm-svn: 113035
 2010-09-03 23:32:47 +00:00
Bruno Cardoso Lopes
d9d2ed558e Remove check for unpckl mask 
llvm-svn: 113034
 2010-09-03 23:31:50 +00:00
Bruno Cardoso Lopes
ecfa52b251 Inline isShuffleMaskLegal into LowerVECTOR_SHUFFLE, so we can start 
checking each standalone condition and decide whether emit target
specific nodes or remove the condition if it's already matched before.

llvm-svn: 113031
 2010-09-03 23:24:06 +00:00
Owen Anderson
94d98b12c8 Propagate non-local comparisons. Fixes PR1757. 
llvm-svn: 113025
 2010-09-03 22:47:08 +00:00
Eric Christopher
5dfc130a4b Reapply this increase to the number of virtual registers. All of the 
various breakages appear to be dealt with.

Patch by Pekka Jääskeläinen.

llvm-svn: 113024
 2010-09-03 22:46:31 +00:00
Dan Gohman
96e1af24f6 Disable the asserts that check that normalization is perfectly 
invertible. ScalarEvolution's folding routines don't always succeed
in canonicalizing equal expressions to a single canonical form, and
this can cause these asserts to fail, even though there's no actual
correctness problem. This fixes PR8066.

llvm-svn: 113021
 2010-09-03 22:12:56 +00:00
Bruno Cardoso Lopes
01dc6f1195 Reapply considered harmfull part of rr112934 and r112942. 
"Use target specific nodes instead of relying in unpckl and
unpckh pattern fragments during isel time. Also place a
depth limit in getShuffleScalarElt.

llvm-svn: 113020
 2010-09-03 22:09:41 +00:00