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Author SHA1 Message Date
Chris Lattner
2efbbb38ba Teach CodeGenPrepare to look through Bitcast instructions when attempting to 
optimize addressing modes.  This allows us to optimize things like isel-sink2.ll
into:

	movl	4(%esp), %eax
	cmpb	$0, 4(%eax)
	jne	LBB1_2	## F
LBB1_1:	## TB
	movl	$4, %eax
	ret
LBB1_2:	## F
	movzbl	7(%eax), %eax
	ret

instead of:

_test:
	movl	4(%esp), %eax
	cmpb	$0, 4(%eax)
	leal	4(%eax), %eax
	jne	LBB1_2	## F
LBB1_1:	## TB
	movl	$4, %eax
	ret
LBB1_2:	## F
	movzbl	3(%eax), %eax
	ret

This shrinks (e.g.) 403.gcc from 1133510 to 1128345 lines of .s.

Note that the 2008-10-16-SpillerBug.ll testcase is dubious at best, I doubt
it is really testing what it thinks it is.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60068 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-26 00:26:16 +00:00
Chris Lattner
6d235bb7a0 fix an over-reduced test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60067 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-26 00:12:08 +00:00
Chris Lattner
d87f570270 this doesn't need EH 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60066 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-26 00:03:26 +00:00
Nuno Lopes
0492c4929e ignore tests output 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60065 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-26 00:02:09 +00:00
Nuno Lopes
08d67c7763 change AnnotationManager to use 'const char*' instead of std::string. this fixes the leakage of those strings and avoids the creation of such strings in static cosntructors (should result in a little improvement of startup time) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60064 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-26 00:00:44 +00:00
Oscar Fuentes
75ea1933a5 CMake: Removed tools/llvmc2 directory hierarchy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60054 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-25 22:19:48 +00:00
Oscar Fuentes
63c956c083 CMake: llvmc2 is now known as llvmc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60052 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-25 22:18:49 +00:00
Mikhail Glushenkov
a606d1f34e Add a man page for llvmc. Really basic for now, will be updated later. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60049 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-25 21:38:38 +00:00
Mikhail Glushenkov
113ec35f7f Since the old llvmc was removed, rename llvmc2 to llvmc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60048 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-25 21:38:12 +00:00
Mikhail Glushenkov
d91487785f Make -fsyntax-only, -include and -emit-llvm work for C++ and Objective-C/C++. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60047 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-25 21:35:20 +00:00
Mikhail Glushenkov
536637fb75 docs: Add author info + fix incorrect code example. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60046 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-25 21:34:53 +00:00
Mikhail Glushenkov
ebdeca786d Small documentation update. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60045 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-25 21:34:29 +00:00
Mikhail Glushenkov
f80f0aacf9 Document the plugin priority feature. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60044 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-25 21:34:01 +00:00
Bill Wendling
740464e616 A simplification for checking whether the signs of the operands and sum differ. Thanks, Duncan. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60043 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-25 19:40:17 +00:00
Evan Cheng
88f2d6c167 convertToSignExtendedInteger should return opInvalidOp instead of asserting if sematics of float does not allow arithmetics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60042 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-25 19:00:29 +00:00
Dan Gohman
878ef1d5bc Suppress warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60041 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-25 18:53:54 +00:00
Chris Lattner
62810e3202 This method got renamed, thanks to Mattias Holm for pointing this out. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60039 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-25 18:34:50 +00:00
Scott Michel
18fae69723 CellSPU: 
(a) Remove conditionally removed code in SelectXAddr. Basically, hope for the
    best that the A-form and D-form address predicates catch everything before
    the code decides to emit a X-form address.
(b) Expand vector store test cases to include the usual suspects.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60034 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-25 17:29:43 +00:00
Nuno Lopes
21bfe0b448 add info about how to run the tests with valgrind 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60030 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-25 15:57:52 +00:00
Bill Wendling
a6af91ae12 Now with the correct type for the 0. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60016 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-25 08:19:22 +00:00
Bill Wendling
7ebfea4175 Get rid of unused variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60015 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-25 08:13:20 +00:00
Bill Wendling
c0062fb755 Hacker's Delight says, "Signed integer overflow of addition occurs if and only 
if the operands have the same sign and the sum has sign opposite to that of the
operands."


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60014 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-25 08:12:19 +00:00
Chris Lattner
3b48501adc Teach MatchScaledValue to handle Scales by 1 with MatchAddr (which 
can recursively match things) and scales by 0 by ignoring them.
This triggers once in 403.gcc, saving 1 (!!!!) instruction in the 
whole huge app.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60013 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-25 07:25:26 +00:00
Chris Lattner
88a5c832ac significantly refactor all the addressing mode matching logic 
into a new AddressingModeMatcher class.  This makes it easier
to reason about and reduces passing around of stuff, but has
no functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60012 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-25 07:09:13 +00:00
Chris Lattner
bb3204a440 refactor all the constantexpr/instruction handling code out into a 
new FindMaximalLegalAddressingModeForOperation helper method.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60011 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-25 05:15:49 +00:00
Chris Lattner
7ad1c7342b another minor tweak 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60010 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-25 04:47:41 +00:00
Chris Lattner
088a1e84ea minor cleanups no functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60009 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-25 04:42:10 +00:00
Oscar Fuentes
b6c2202786 CMake: Documented two cmake variables. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60008 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-25 04:23:36 +00:00
Scott Michel
50843c0741 CellSPU: Relax constraints on when to generate a X-form address, evidently 
they were too tight according to bug 3126.

Fix bug 3126.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60006 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-25 04:03:47 +00:00
Scott Michel
97d0a603e6 CellSPU: test should use shlqby, not shlqbyi 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60001 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-25 01:30:37 +00:00
Bill Wendling
39ccca3260 XFAIL this test. A recent CellSPU check-in broke it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60000 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-25 00:56:34 +00:00
Dan Gohman
21d9003087 Initial support for anti-dependence breaking. Currently this code does not 
introduce any new spilling; it just uses unused registers.

Refactor the SUnit topological sort code out of the RRList scheduler and
make use of it to help with the post-pass scheduler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59999 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-25 00:52:40 +00:00
Scott Michel
662165d224 CellSPU: Fix mnemonic typo in pattern; "shlqbyi" -> "shlqby". 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59998 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-25 00:23:16 +00:00
Bill Wendling
9822296b18 Testcase for constant CFStrings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59992 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-24 23:28:09 +00:00
Chris Lattner
85fa13c02d rearrange and tidy some code, no functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59990 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-24 22:44:16 +00:00
Chris Lattner
4744d85c50 minor cleanups to debug code, no functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59989 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-24 22:40:05 +00:00
Chris Lattner
8d0d603a0b reenable test 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59986 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-24 21:27:20 +00:00
Chris Lattner
ae297f8da5 reenable the right part of the code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59985 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-24 21:26:21 +00:00
Bill Wendling
612e0b701f Temporarily XFAIL this test. r59976 and r59972 broke it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59981 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-24 20:43:33 +00:00
Dan Gohman
ad38b6e4e5 Move the scheduler constructor functions to SchedulerRegistry.h, to 
simplify header dependencies for front-ends that just want to choose
a scheduler and don't need all the scheduling machinery declarations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59978 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-24 19:53:21 +00:00
Dan Gohman
d59b083d22 Fix an unused-parameter warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59977 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-24 19:51:59 +00:00
Chris Lattner
7f2d6efbaa revert an accidental commit, this fixes the regression on test/CodeGen/X86/isel-sink.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59976 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-24 19:40:34 +00:00
Chris Lattner
47f5751c80 Fix 3113: If we have a dead cyclic PHI, replace the whole thing 
with an undef.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59972 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-24 19:25:36 +00:00
Bill Wendling
41ea7e7eb3 - Make lowering of "add with overflow" customizable by back-ends. 
- Mark "add with overflow" as having a custom lowering for X86. Give it a null
  lowering representation for now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59971 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-24 19:21:46 +00:00
Scott Michel
045a14503f CellSPU: 
(a) Slight rethink on i64 zero/sign/any extend code - use a shuffle to
    directly zero-extend i32 to i64, but use rotates and shifts for
    sign extension. Also ensure unified register consistency.
(b) Add new test harness for i64 operations: i64ops.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59970 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-24 18:20:46 +00:00
Dan Gohman
942b8c8533 Check in the rest of this change. The isAntiDep flag needs to be passed 
to removePred because an SUnit can both data-depend and anti-depend
on the same SUnit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59969 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-24 17:33:52 +00:00
Dan Gohman
974b5f53f7 Pass the isAntiDep argument. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59968 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-24 17:24:27 +00:00
Dan Gohman
cb72dd6776 Run post-RA scheduling after branch folding, as it tends to 
obscure tail-merging opportunities.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59967 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-24 17:22:52 +00:00
Dan Gohman
f003276ee6 Fix a few HTML tidiness issues. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59966 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-24 17:18:39 +00:00
Scott Michel
104de4390b CellSPU: 
(a) Improve the extract element code: there's no need to do gymnastics with
    rotates into the preferred slot if a shuffle will do the same thing.
(b) Rename a couple of SPUISD pseudo-instructions for readability and better
    semantic correspondence.
(c) Fix i64 sign/any/zero extension lowering.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59965 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-24 17:11:17 +00:00