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Author SHA1 Message Date
Chris Lattner
d8db8b6952 Teach FoldBitCast to be able to handle bitcasts from (e.g.) i128 -> <4 x float>. 
This allows us to simplify this:
union vec2d {
    double e[2];
    double v __attribute__((vector_size(16)));
};
typedef union vec2d vec2d;

static vec2d a={{1,2}}, b={{3,4}};
    
vec2d foo () {
    return (vec2d){ .v = a.v + b.v * (vec2d){{5,5}}.v };
}

down to:

define %0 @foo() nounwind ssp {
entry:
  %mrv5 = insertvalue %0 undef, double 1.600000e+01, 0 ; <%0> [#uses=1]
  %mrv6 = insertvalue %0 %mrv5, double 2.200000e+01, 1 ; <%0> [#uses=1]
  ret %0 %mrv6
}

instead of:

define %0 @foo() nounwind ssp {
entry:
  %mrv5 = insertvalue %0 undef, double extractelement (<2 x double> fadd (<2 x double> fmul (<2 x double> bitcast (<1 x i128> <i128 85174437667405312423031577302488055808> to <2 x double>), <2 x double> <double 3.000000e+00, double 4.000000e+00>), <2 x double> <double 1.000000e+00, double 2.000000e+00>), i32 0), 0 ; <%0> [#uses=1]
  %mrv6 = insertvalue %0 %mrv5, double extractelement (<2 x double> fadd (<2 x double> fmul (<2 x double> bitcast (<1 x i128> <i128 85174437667405312423031577302488055808> to <2 x double>), <2 x double> <double 3.000000e+00, double 4.000000e+00>), <2 x double> <double 1.000000e+00, double 2.000000e+00>), i32 1), 1 ; <%0> [#uses=1]
  ret %0 %mrv6
}

llvm-svn: 85040
 2009-10-25 06:15:37 +00:00
Chris Lattner
d80c1f61d2 move FoldBitCast earlier in the file, and use it instead of 
ConstantExpr::getBitCast in various places.

llvm-svn: 85039
 2009-10-25 06:08:26 +00:00
Chris Lattner
f6cb8d6b90 refactor FoldBitCast to reduce nesting and to always return a constantexpr 
instead of returning null on failure.  No functionality change.

llvm-svn: 85038
 2009-10-25 06:02:57 +00:00
Nick Lewycky
cacdc4d65a Remove ICmpInst::isSignedPredicate which was a reimplementation 
CmpInst::isSigned.

llvm-svn: 85037
 2009-10-25 05:20:17 +00:00
Nick Lewycky
a16e115bd4 Sink isTrueWhenEqual from ICmpInst to CmpInst. Add a matching isFalseWhenEqual 
which is equal to !isTrueWhenEqual for ints but not for floats.

llvm-svn: 85036
 2009-10-25 03:50:03 +00:00
Daniel Dunbar
499815e9f9 lit: Add --config-prefix option, to override default config file names. 
llvm-svn: 85035
 2009-10-25 03:30:55 +00:00
Nick Lewycky
242c20ffde Indent. 
llvm-svn: 85034
 2009-10-25 03:22:00 +00:00
Mikhail Glushenkov
ef7afeb176 Regenerate. 
llvm-svn: 85031
 2009-10-25 01:44:24 +00:00
Mikhail Glushenkov
5f133de5c2 Document OptionPreprocessor. 
llvm-svn: 85030
 2009-10-25 01:44:11 +00:00
Mikhail Glushenkov
98921da4dd Add a test for OptionPreprocessor. 
llvm-svn: 85029
 2009-10-25 01:43:50 +00:00
Daniel Dunbar
69b298e1c2 lit: Allow use of /dev/null in redirects on Windows (replace by a temporary 
file).

llvm-svn: 85028
 2009-10-25 01:37:26 +00:00
Jim Grosbach
7af2399458 When the scavenger is looking for a good candidate location to restore from a 
spill, it should avoid doing so inside the live range of a virtual register.

llvm-svn: 85026
 2009-10-25 00:45:07 +00:00
Dan Gohman
06621f065a Update these tests to match what Loop::print now prints. 
llvm-svn: 85021
 2009-10-24 23:52:07 +00:00
Dan Gohman
07044648b2 MapValue doesn't needs its LLVMContext argument. 
llvm-svn: 85020
 2009-10-24 23:37:16 +00:00
Dan Gohman
1e96c6acaf Rename isLoopExit to isLoopExiting, for consistency with the wording 
used elsewhere - an exit block is a block outside the loop branched to
from within the loop. An exiting block is a block inside the loop that
branches out.

llvm-svn: 85019
 2009-10-24 23:34:26 +00:00
Dan Gohman
3c62b33053 Delete a spurious semicolon. 
llvm-svn: 85018
 2009-10-24 23:24:45 +00:00
Dan Gohman
6e2d1c608b Make these tests more interesting by using 
-verify-dom-info and -verify-loop-info, which enable additional
(expensive) consistency checks.

llvm-svn: 85017
 2009-10-24 23:23:04 +00:00
Dan Gohman
477456910a Rewrite LoopRotation's SSA updating code using SSAUpdater. 
llvm-svn: 85016
 2009-10-24 23:19:52 +00:00
Daniel Dunbar
e66bb298d4 lit: Support '>>' redirections when executing scripts internally. 
llvm-svn: 85014
 2009-10-24 20:32:49 +00:00
Daniel Dunbar
59d81da39c Update CMake dependencies. 
llvm-svn: 85013
 2009-10-24 20:32:43 +00:00
Daniel Dunbar
d98eb10494 Teach macho-dump to dump UUIDs. 
llvm-svn: 85012
 2009-10-24 20:32:36 +00:00
Dan Gohman
e970f8a450 Make DominanceFrontierBase::print's output prettier. 
llvm-svn: 85011
 2009-10-24 20:01:11 +00:00
Dan Gohman
d60e3bf386 Make DominanceFrontier::addBasicBlock return the iterator for the newly 
inserted block.

llvm-svn: 85010
 2009-10-24 19:57:58 +00:00
Dan Gohman
a4883a3903 Add an explicit keyword. 
llvm-svn: 85009
 2009-10-24 19:56:23 +00:00
Sanjiv Gupta
ec0d345a46 Revert back 85006 for now as it breaks PIC16 tests. 
llvm-svn: 85008
 2009-10-24 18:19:41 +00:00
Sanjiv Gupta
1fcb847e01 Adding support for placing global objects in shared data memory. 
llvm-svn: 85006
 2009-10-24 18:02:44 +00:00
Chris Lattner
5f456758c6 various cleanups suggested by Duncan 
llvm-svn: 84993
 2009-10-24 05:27:19 +00:00
Chris Lattner
9a1f5c9f90 fix PR5287, a serious regression from my previous patches. Thanks to 
Duncan for the nice tiny testcase.

llvm-svn: 84992
 2009-10-24 05:22:15 +00:00
Victor Hernandez
e8998896f5 Auto-upgrade free instructions to calls to the builtin free function. 
Update all analysis passes and transforms to treat free calls just like FreeInst.
Remove RaiseAllocations and all its tests since FreeInst no longer needs to be raised.

llvm-svn: 84987
 2009-10-24 04:23:03 +00:00
Evan Cheng
0e5c6b3b69 80 col violation. 
llvm-svn: 84986
 2009-10-24 02:07:42 +00:00
Anton Korobeynikov
0e56d9fdb7 Add some asserts to catch copyRegToReg() fails early 
llvm-svn: 84983
 2009-10-24 00:27:00 +00:00
Jim Grosbach
e295e49760 Restrict Thumb1 register allocation to low registers, even for instructions that 
can access the hi regs. Our prologue and epilogue code doesn't know how to
properly handle save/restore of the hi regs, so things go badly when we alloc
them.

llvm-svn: 84982
 2009-10-24 00:19:24 +00:00
Evan Cheng
82de095652 Identity copies should not contribute to spill weight. 
llvm-svn: 84978
 2009-10-23 23:09:19 +00:00
Jim Grosbach
5b5a404677 FIXME no longer applies. R12 and R3 are available for allocation 
llvm-svn: 84977
 2009-10-23 23:07:42 +00:00
Jeffrey Yasskin
8ff8b897a5 Fix http://llvm.org/PR4822: allow module deletion after a function has been 
compiled.

When functions are compiled, they accumulate references in the JITResolver's
stub maps. This patch removes those references when the functions are
destroyed.  It's illegal to destroy a Function when any thread may still try to
call its machine code.

This patch also updates r83987 to use ValueMap instead of explicit CallbackVHs
and fixes a couple "do stuff inside assert()" bugs from r84522.

llvm-svn: 84975
 2009-10-23 22:37:43 +00:00
Victor Hernandez
8428eb5720 Remove AllocationInst. Since MallocInst went away, AllocaInst is the only subclass of AllocationInst, so it no longer is necessary. 
llvm-svn: 84969
 2009-10-23 21:09:37 +00:00
Jeffrey Yasskin
bc5f122491 Fix stylistic and documentation problems in ValueMap found by Nick Lewycky and 
Evan Cheng.

llvm-svn: 84967
 2009-10-23 20:54:00 +00:00
Dan Gohman
b15fee5666 APInt-ify the gep scaling code, so that it correctly handles the case where 
the scale overflows pointer-sized arithmetic. This fixes PR5281.

llvm-svn: 84954
 2009-10-23 17:57:43 +00:00
Dan Gohman
ad2555c9a3 Make LoopDeletion check the maximum backedge taken count, rather than the 
exact backedge taken count, when checking for infinite loops. This allows
it to delete loops with multiple exit conditions.

llvm-svn: 84952
 2009-10-23 17:10:01 +00:00
Chris Lattner
d1dbcae98f some stuff is done, we still have constantexpr simplification to do. 
llvm-svn: 84943
 2009-10-23 07:00:55 +00:00
Chris Lattner
4874f5bce5 teach libanalysis to simplify vector loads with bitcast sources. This 
implements something out of Target/README.txt producing:

_foo:                                                       ## @foo
	movl	4(%esp), %eax
	movapd	LCPI1_0, %xmm0
	movapd	%xmm0, (%eax)
	ret	$4

instead of:

_foo:                                                       ## @foo
	movl	4(%esp), %eax
	movapd	_b, %xmm0
	mulpd	LCPI1_0, %xmm0
	addpd	_a, %xmm0
	movapd	%xmm0, (%eax)
	ret	$4

llvm-svn: 84942
 2009-10-23 06:57:37 +00:00
Chris Lattner
2ee1f0f0b5 enhance FoldReinterpretLoadFromConstPtr to handle loads of up to 32 
bytes (i256).

llvm-svn: 84941
 2009-10-23 06:50:36 +00:00
Chris Lattner
b1d2706a4c teach libanalysis to fold int and fp loads from almost arbitrary 
non-type-safe constant initializers.  This sort of thing happens
quite a bit for 4-byte loads out of string constants, unions, 
bitfields, and an interesting endianness check from sqlite, which
is something like this:

const int sqlite3one = 1;
# define SQLITE_BIGENDIAN    (*(char *)(&sqlite3one)==0)
# define SQLITE_LITTLEENDIAN (*(char *)(&sqlite3one)==1)
# define SQLITE_UTF16NATIVE (SQLITE_BIGENDIAN?SQLITE_UTF16BE:SQLITE_UTF16LE)

all of these macros now constant fold away.

This implements PR3152 and is based on a patch started by Eli, but heavily
modified and extended.

llvm-svn: 84936
 2009-10-23 06:23:49 +00:00
Tanya Lattner
16727944b3 Add 2.6 release note. 
llvm-svn: 84934
 2009-10-23 06:20:06 +00:00
Evan Cheng
aa03d9926d Update tests for 84931. 
llvm-svn: 84932
 2009-10-23 05:58:34 +00:00
Evan Cheng
0db11ae5a2 X86 needs critical path anti-dependency breaking. 
llvm-svn: 84931
 2009-10-23 05:57:35 +00:00
Dale Johannesen
3f91e235b8 Commit fixes for half precision I noted in review, so 
they don't get lost; I don't think the originator has
write access.

llvm-svn: 84928
 2009-10-23 04:02:51 +00:00
Bill Wendling
7d48a41864 This is passing on Darwin PPC. 
llvm-svn: 84921
 2009-10-23 01:37:01 +00:00
Victor Hernandez
48872a3306 Minor code cleanup. 
llvm-svn: 84919
 2009-10-23 00:59:10 +00:00
Bill Wendling
283fb69c0a Neuter stack protectors by only checking character arrays. This is what GCC 
does.

llvm-svn: 84916
 2009-10-23 00:01:05 +00:00