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20284 Commits

Author SHA1 Message Date
Neil Booth 49c6aab7b8 Use APInt::tcExtract. It's cleaner, and works :) 
llvm-svn: 42746
 2007-10-08 14:39:42 +00:00
Neil Booth b618216e56 Add a new function tcExtract for extracting a bignum from an 
arbitrary range of bits embedded in the middle of another bignum.
This kind of operation is desirable in many cases of software
floating point, e.g. converting bignum integers to floating point
numbers of fixed precision (you want to extract the precision most
significant bits).

Elsewhere, add an assertion, and exit the shift functions early if
the shift count is zero.

llvm-svn: 42745
 2007-10-08 13:47:12 +00:00
Owen Anderson 74529b7d5f Begin the process of allowing DomTree on MBB's. Step One: template DomTreeNode by making it a typedef of a templated DomTreeNodeBase. 
llvm-svn: 42743
 2007-10-08 07:44:39 +00:00
Evan Cheng 21a58a72c5 Kill cycle of an live range is always the last use index + 1. 
llvm-svn: 42742
 2007-10-08 06:59:30 +00:00
Gordon Henriksen 783f7bbabd C and Objective Caml bindings for getFunction and getNamedGlobal. Also enhanced 
the Objective Caml 'declare_*' functions to behave more or less like
getOrInsertFunction.

llvm-svn: 42740
 2007-10-08 03:45:09 +00:00
Chris Lattner b20757d578 disable this entirely: it is causing use of invalidated iterators and infinite looping. 
llvm-svn: 42739
 2007-10-07 22:00:31 +00:00
Chris Lattner 8dd66ab3b2 Fix many regressions on x86 by avoiding dereferencing the end iterator. 
llvm-svn: 42738
 2007-10-07 21:53:12 +00:00
Gordon Henriksen 751ebf7b9a C and Objective Caml bindings for GlobalVariable::isConstant. 
llvm-svn: 42736
 2007-10-07 17:31:42 +00:00
Neil Booth 03f58ab706 Add back convertFromSignExtendedInteger. 
llvm-svn: 42735
 2007-10-07 12:15:41 +00:00
Neil Booth ba205229e7 Now that convertFromUnsignedParts has a sane, constant interface, 
convertFromZeroExtendedInteger can be simplified as it doesn't need
to make a copy of the source bignum.

llvm-svn: 42734
 2007-10-07 12:10:57 +00:00
Neil Booth 6c1c8588ae Reimplement convertFromUnsignedInteger so it is passed a const bignum. 
It used to modify its argument in-place.

This interface is saner and the implementation more efficient.  It will
be needed for decimal->binary conversion.

llvm-svn: 42733
 2007-10-07 12:07:53 +00:00
Neil Booth 5f00973393 convertFromInteger, as originally written, expected sign-extended 
input.  APInt unfortunately zero-extends signed integers, so Dale
modified the function to expect zero-extended input.  Make this
assumption explicit in the function name.

llvm-svn: 42732
 2007-10-07 11:45:55 +00:00
Neil Booth d3985924f4 combineLostFractions does not need to be a member function 
llvm-svn: 42729
 2007-10-07 08:51:21 +00:00
Gordon Henriksen ffb4876cfb C and Objective Caml bindings for PATypeHolder. 
llvm-svn: 42713
 2007-10-07 00:13:35 +00:00
Gordon Henriksen c3d661a0ee Bindings for the verifier. 
llvm-svn: 42707
 2007-10-06 21:00:36 +00:00
Anton Korobeynikov 67ac2de8bf Oops, I really wanted to commit this part also :) 
llvm-svn: 42700
 2007-10-06 16:39:43 +00:00
Anton Korobeynikov c59496f737 Move merge code into new helper function. 
llvm-svn: 42699
 2007-10-06 16:17:49 +00:00
Gordon Henriksen ed7beaa3fa Adopting a uniform naming convention for type constructors in bindings. 
llvm-svn: 42698
 2007-10-06 16:05:20 +00:00
Gordon Henriksen 1046c73d12 Adopting a uniform naming convention for constant constructors in bindings. 
llvm-svn: 42697
 2007-10-06 15:11:06 +00:00
Gordon Henriksen 7ce3176696 Adding C and Ocaml bindings for ConstantExpr. 
llvm-svn: 42696
 2007-10-06 14:29:36 +00:00
Evan Cheng 0de312dd7d Reapply 42677. 
llvm-svn: 42692
 2007-10-06 08:19:55 +00:00
Neil Booth 32897f5eb0 Cleaner, more general exponent output. 
llvm-svn: 42690
 2007-10-06 07:29:25 +00:00
Chris Lattner 2a9bcb9ea7 silence warnings in no-assert build. 
llvm-svn: 42687
 2007-10-06 06:13:42 +00:00
Chris Lattner 82217bd155 revert evan's patch until the header is committed 
llvm-svn: 42686
 2007-10-06 06:08:17 +00:00
Evan Cheng f4b5d491df Added DAG xforms. e.g. 
(vextract (v4f32 s2v (f32 load $addr)), 0) -> (f32 load $addr) 
(vextract (v4i32 bc (v4f32 s2v (f32 load $addr))), 0) -> (i32 load $addr)
Remove x86 specific patterns.

llvm-svn: 42677
 2007-10-06 02:46:29 +00:00
Dale Johannesen f864ac96d8 Next powerpc long double bits. Comparisons work, 
although not well, and shortening FP converts.

llvm-svn: 42672
 2007-10-06 01:24:11 +00:00
Neil Booth c8b650ab14 Fix and clarify some comments. 
llvm-svn: 42670
 2007-10-06 00:43:45 +00:00
Neil Booth 0ea72a9a91 Generalize tcFullMultiply so that the operands can be of differing 
part widths.  Also, return the number of parts actually required to
hold the result's value.
Remove an over-cautious condition from rounding of float->hex conversion.

llvm-svn: 42669
 2007-10-06 00:24:48 +00:00
Gordon Henriksen 1d0d24c4fd Wrapping Value::dump. 
llvm-svn: 42668
 2007-10-06 00:08:49 +00:00
Gordon Henriksen 7330acdec7 Removing the silly CHelpers header by rolling wrap and unwrap into the C 
bindings headers themselves, hidden behind #ifdef __cplusplus.

llvm-svn: 42666
 2007-10-05 23:59:36 +00:00
Evan Cheng 1151ffde70 Commute x86 cmove instructions by swapping the operands and change the condition 
to its inverse.
Testing this as llcbeta

llvm-svn: 42661
 2007-10-05 23:13:21 +00:00
Evan Cheng 42a13757de This is done. 
llvm-svn: 42656
 2007-10-05 22:34:59 +00:00
Evan Cheng 484cab7a2f Enable convertToThreeAddress for X86 by default. 
llvm-svn: 42655
 2007-10-05 22:31:10 +00:00
Devang Patel a69f987b66 Fix bug in updating dominance frontier after loop 
unswitch when frontier includes basic blocks that 
are not inside loop.

llvm-svn: 42654
 2007-10-05 22:29:34 +00:00
Evan Cheng d3ccf00870 INC64_32r -> LEA64_32r is better than INC64_32r -> LEA32r, but it still can 
cause performance degradation.

llvm-svn: 42653
 2007-10-05 21:55:32 +00:00
Evan Cheng fa2c828687 In 64-bit mode, avoid using leal with 32-bit 32-bit address size, e.g. 
leal 1(%ecx), %edi, which requires 67H prefix.

llvm-svn: 42647
 2007-10-05 20:34:26 +00:00
Dale Johannesen c0154c06d6 First round of ppc long double. call/return and 
basic arithmetic works.
Rename RTLIB long double functions to distinguish
different flavors of long double; the lib functions
have different names, alas.

llvm-svn: 42644
 2007-10-05 20:04:43 +00:00
Evan Cheng aac0f8e351 Add support to convert more 64-bit instructions to 3-address instructions. 
llvm-svn: 42642
 2007-10-05 18:20:36 +00:00
Evan Cheng 97eba74a52 ADC and SBB uses EFLAGS. 
llvm-svn: 42640
 2007-10-05 17:59:57 +00:00
Dan Gohman 43c29dce18 Change a few more spaces to tabs in assembly output. 
llvm-svn: 42638
 2007-10-05 15:58:41 +00:00
Dan Gohman b074f23dff Change a space to a tab in the assembly output of a .globl directive 
for consistency.

llvm-svn: 42637
 2007-10-05 15:54:58 +00:00
Dan Gohman 12334acbfb Legalize support for MUL_LOHI and DIVREM. 
llvm-svn: 42636
 2007-10-05 14:17:22 +00:00
Dan Gohman 2682bb6df2 Fix a typo in a comment. 
llvm-svn: 42635
 2007-10-05 14:11:58 +00:00
Dan Gohman 1a77dfba15 Provide names for MUL_LOHI and DIVREM operators. 
llvm-svn: 42634
 2007-10-05 14:11:04 +00:00
Evan Cheng a8a9c15e30 Testing convertToThreeeAddress as X86 llcbeta. 
llvm-svn: 42630
 2007-10-05 08:04:01 +00:00
Evan Cheng 84d0ebc10a Chain producing nodes cannot be moved, not chain reading nodes. 
llvm-svn: 42627
 2007-10-05 01:42:35 +00:00
Evan Cheng 991cf47221 Oops. Didn't mean to leave this in. 
llvm-svn: 42626
 2007-10-05 01:39:40 +00:00
Evan Cheng 79e9713b11 If a node that defines a physical register that is expensive to copy. The 
scheduler will try a number of tricks in order to avoid generating the
copies. This may not be possible in case the node produces a chain value
that prevent movement. Try unfolding the load from the node before to allow
it to be moved / cloned.

llvm-svn: 42625
 2007-10-05 01:39:18 +00:00
Evan Cheng a851e2b92e Added storeRegToAddr, loadRegFromAddr, and unfoldMemoryOperand's. 
llvm-svn: 42624
 2007-10-05 01:34:55 +00:00
Evan Cheng 6912b50958 Not needed any more. 
llvm-svn: 42623
 2007-10-05 01:34:14 +00:00