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Author SHA1 Message Date
Chris Lattner
8a4fa95cae Add support for calls that return two FP values in 
ST(0)/ST(1).

llvm-svn: 48634
 2008-03-21 06:38:26 +00:00
Chris Lattner
933d0d318b disable a bogus assertion. 
llvm-svn: 48633
 2008-03-21 06:01:05 +00:00
Chris Lattner
260473f983 Enable support for returning two long-double values in ST(0)/ST(1). 
This allows us to compile fp-stack-2results.ll into:

_test:
	fldz
	fld1
	ret

which returns 1 in ST(0) and 0 in ST(1).  This is needed for x86-64
_Complex long double.

llvm-svn: 48632
 2008-03-21 05:57:20 +00:00
Chris Lattner
96cdf21ed4 Teach masked value is zero about add and sub, and use MVIZ to 
simplify things like (X & 4) >> 1 == 2  --> (X & 4) == 4.

since it is obvious that the shift doesn't remove any bits.

llvm-svn: 48631
 2008-03-21 05:19:58 +00:00
Evan Cheng
4ae9fee64c Undo 48570. Correctly match mmx shift instructions with an immediate operand. 
llvm-svn: 48627
 2008-03-21 00:40:09 +00:00
Devang Patel
1b64c7d1e5 These passes preserve CFG. 
This patch fixes Benchmarks/Trimaran/enc-pc1/enc-pc1 failure reported by Grawp-PIC i386 nightly tester

llvm-svn: 48623
 2008-03-20 23:27:18 +00:00
Devang Patel
192124d0e6 Incorporate feedback. 
- Fix loop nest.
- Use RetVals.size()
- Check for null return value.

llvm-svn: 48605
 2008-03-20 18:30:32 +00:00
Gordon Henriksen
dca0a5c5dc C and Objective Caml bindings for mem2reg and reg2mem. 
Patch by Erick Tryzelaar.

llvm-svn: 48602
 2008-03-20 17:16:03 +00:00
Andrew Lenharth
6e32942dfa enable -analyze for andersens 
llvm-svn: 48601
 2008-03-20 15:36:44 +00:00
Zhou Sheng
fc7856f528 Take the old function's name. 
llvm-svn: 48588
 2008-03-20 08:05:05 +00:00
Nick Lewycky
3903f2f24e ubyte and sbyte? what are those? 
llvm-svn: 48585
 2008-03-20 06:19:51 +00:00
Chris Lattner
f166a78d79 add a note. 
llvm-svn: 48583
 2008-03-20 04:46:13 +00:00
Christopher Lamb
110f66ca68 Check even more carefully before applying this DAGCombine transform. 
llvm-svn: 48580
 2008-03-20 04:31:39 +00:00
Devang Patel
f15fe34521 Restore isCFGOnly property of various analysis passes. 
llvm-svn: 48579
 2008-03-20 02:25:21 +00:00
Evan Cheng
8ecb189245 Fix this xform: (sra (shl X, m), result_size) -> (sign_extend (trunc (shl X, result_size - n - m))) 
llvm-svn: 48578
 2008-03-20 02:18:41 +00:00
Chris Lattner
6c4486c5c7 detabify llvm, patch by Mike Stump! 
llvm-svn: 48577
 2008-03-20 01:22:40 +00:00
Devang Patel
e4f39224eb Keep track of analysis information inherited from Module pass manager. 
llvm-svn: 48576
 2008-03-20 01:09:53 +00:00
Scott Michel
e747d20130 Add more patterns to match in the integer comparison test harnesses. 
Fix bugs encountered, mostly due to range matching for immediates;
the CellSPU's 10-bit immediates are sign extended, covering a
larger range of unsigned values.

llvm-svn: 48575
 2008-03-20 00:51:36 +00:00
Evan Cheng
c5f34f6463 80 col violation. 
llvm-svn: 48573
 2008-03-20 00:20:23 +00:00
Evan Cheng
6f729b2820 Add intrinsics to match mmx shift builtin's with immediate operand. 
llvm-svn: 48569
 2008-03-19 23:38:52 +00:00
Devang Patel
c9c6d88ee5 Add comment. 
llvm-svn: 48567
 2008-03-19 23:05:52 +00:00
Andrew Lenharth
9d2ead09ba style and spelling 
llvm-svn: 48562
 2008-03-19 22:32:43 +00:00
Devang Patel
3af681c5fb #if 1 .. #endif markers do not add any value. 
llvm-svn: 48560
 2008-03-19 22:24:25 +00:00
Evan Cheng
5ef962445a Remove dead options. 
llvm-svn: 48556
 2008-03-19 22:02:26 +00:00
Devang Patel
5e8cbbea65 PassInfo keep tracks whether a pass is an analysis pass or not. 
llvm-svn: 48554
 2008-03-19 21:56:59 +00:00
Dan Gohman
c9dec33f3f Add support for multiple return values for the PPC target by 
converting call result lowering to use the CallingConvLowering
infastructure.

llvm-svn: 48552
 2008-03-19 21:39:28 +00:00
Andrew Lenharth
febb9d6e5a llvm-ld deserves disable-verify too. opt shouldn't have all the fun options. 
llvm-svn: 48550
 2008-03-19 20:49:51 +00:00
Arnold Schwaighofer
19a78545d9 Don't loose incoming argument registers. Fix documentation style. 
llvm-svn: 48545
 2008-03-19 16:39:45 +00:00
Duncan Sands
486fdbb67f Fix comment. 
llvm-svn: 48543
 2008-03-19 10:59:59 +00:00
Christopher Lamb
958b0494c3 Fix X86's isTruncateFree to not claim that truncate to i1 is free. This fixes Bill's testcase that failed for r48491. 
llvm-svn: 48542
 2008-03-19 08:30:06 +00:00
Tanya Lattner
52e5896b3f Upgrade tests. 
llvm-svn: 48538
 2008-03-19 07:28:33 +00:00
Tanya Lattner
f0dc625b4f Upgrade tests. 
llvm-svn: 48536
 2008-03-19 05:39:35 +00:00
Chris Lattner
1642451cf7 add some convenience methods for creating GEP instructions and 
struct types.  Patch by David Chisnall, with some tweaks.

llvm-svn: 48531
 2008-03-19 05:06:05 +00:00
Tanya Lattner
be72114460 Upgrade tests to not use llvm-upgrade. 
llvm-svn: 48530
 2008-03-19 04:36:04 +00:00
Tanya Lattner
88c66b1027 Upgrade tests to not use llvm-upgrade. 
llvm-svn: 48529
 2008-03-19 04:14:49 +00:00
Gordon Henriksen
e4b3339de8 C bindings for Module-, Function-, and BasicBlock::iterator. 
llvm-svn: 48528
 2008-03-19 03:47:18 +00:00
Tanya Lattner
0721aaa8f7 Remove llvm-upgrade and update tests. 
llvm-svn: 48527
 2008-03-19 03:47:13 +00:00
Evan Cheng
e9aa507edc Fixed a coalescer bug caused by a typo. 
llvm-svn: 48526
 2008-03-19 02:26:36 +00:00
Gordon Henriksen
15006d5da0 C and Objective Caml bindings for the various getParent methods of the IR. 
Based on Erick Tryzelaar's patch.

llvm-svn: 48523
 2008-03-19 01:11:35 +00:00
Evan Cheng
3d9309c11d Fix live variables issues: 
1. If part of a register is re-defined, an implicit kill and an implicit def are added to denote read / mod / write. However, this should only be necessary if the register is actually read later. This is a performance issue.
2. If a sub-register is being defined, and it doesn't have a previous use, do not add a implicit kill to the last use of a super-register:
   = EAX, AX<imp-use,kill>
...
AX =
In this case, EAX is live but AX is killed, this is wrong and will cause the coalescer to do bad things.

llvm-svn: 48521
 2008-03-19 00:52:20 +00:00
Devang Patel
38f181fa8c Do not use virtual function to identify an analysis pass. 
llvm-svn: 48520
 2008-03-19 00:48:41 +00:00
Bill Wendling
7ae70d6441 On Darwin, GCC issues a ".globl" for something that has a "visibility protected" 
attribute instead of ".protected".

llvm-svn: 48516
 2008-03-18 23:38:12 +00:00
Evan Cheng
5ac87b837e Fix a x86-64 isel lowering bug that's been around forever. A x86-64 varargs function implicitly reads X86::AL, don't clobber it! 
llvm-svn: 48515
 2008-03-18 23:36:35 +00:00
Scott Michel
f20fbe8a93 Note that gcc 4.0.1 will trip internal LLVM asserts (e.g., pred_iterator) if compiling 
for Release with optimization levels greater than -O0.

llvm-svn: 48513
 2008-03-18 23:13:26 +00:00
Bill Wendling
c8f3fc7c3d It might be nice to have this run as x86 on non-x86 platforms... 
llvm-svn: 48511
 2008-03-18 22:38:22 +00:00
Bill Wendling
5ea2aec3ac Temporarily revert r48491. It's breaking test/CodeGen/X86/xorl.ll. 
llvm-svn: 48510
 2008-03-18 22:29:51 +00:00
Daniel Berlin
0f20fa71ba Fix PR 2160 by making sure arguments to external functions get marked as pointing to anything 
llvm-svn: 48509
 2008-03-18 22:22:53 +00:00
Tanya Lattner
240dd2a657 Do not pass -g flag when compiling tests, so remove the C.Flags. This only happens if you have a debug build of llvm. 
llvm-svn: 48498
 2008-03-18 19:59:04 +00:00
Dale Johannesen
7f51ebc90c Make conversions of i8/i16 to ppcf128 work. 
llvm-svn: 48493
 2008-03-18 17:28:38 +00:00
Scott Michel
889ee011f7 Dial down gcc's warnings: don't use 0UL when 0U suffices (and when the 
variables and methods themselves only use unsigned.)

llvm-svn: 48492
 2008-03-18 16:55:06 +00:00