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Author SHA1 Message Date
Chris Lattner
d2011c4015 Make a couple of cleanups to the instcombine bitcast/gep 
canonicalization transform based on duncan's comments:

1) improve the comment about %.
2) within our index loop make sure the offset stays 
   within the *type size*, instead of within the *abi size*.
   This allows us to reason explicitly about landing in tail
   padding and means that issues like non-zero offsets into
   [0 x foo] types don't occur anymore.

llvm-svn: 62045
 2009-01-11 20:15:20 +00:00
Nick Lewycky
4d1c04a4ea Use the spiffy new getAlignmentFromAttrs function. 
llvm-svn: 62039
 2009-01-11 17:02:06 +00:00
Evan Cheng
e280fcfbbc CheckForPhysRegDependency should not return copy cost. It's not used. No functionality change. 
llvm-svn: 62036
 2009-01-11 08:53:35 +00:00
Bill Wendling
1c5828d337 Fix naming of file. 
llvm-svn: 62035
 2009-01-11 01:25:51 +00:00
Dan Gohman
473e732586 Fix the example syntax for named sections. 
llvm-svn: 62033
 2009-01-11 00:40:00 +00:00
Evan Cheng
47dfb8c719 This is a dup of pr2659.ll. 
llvm-svn: 62029
 2009-01-10 19:06:32 +00:00
Bill Wendling
d88988a11e Adding unittests for SmallVector. Test by Talin. 
llvm-svn: 62025
 2009-01-10 12:56:31 +00:00
Evan Cheng
ce292ad389 80 col violation. 
llvm-svn: 62024
 2009-01-10 03:33:22 +00:00
Devang Patel
a350457725 Reduce initial small vector sizes. 
llvm-svn: 62023
 2009-01-10 02:42:49 +00:00
Devang Patel
77332761ef Fix thinko. Create parent scope if parent descriptor is *not* null. 
llvm-svn: 62022
 2009-01-10 02:34:18 +00:00
Evan Cheng
411c48b7d2 Duplicated node may produce a non-physical register def. 
llvm-svn: 62015
 2009-01-09 22:44:02 +00:00
Evan Cheng
84945aba0b Add test case from PR2659. 
llvm-svn: 62006
 2009-01-09 21:01:31 +00:00
Evan Cheng
7a918ea197 Minor debug output tweak. 
llvm-svn: 62005
 2009-01-09 20:42:34 +00:00
Misha Brukman
5837493db7 This has been replaced by llvm/utils/lint/cpp_lint.py, which is more 
comprehensive and can support more complex style analysis.

llvm-svn: 62002
 2009-01-09 19:46:41 +00:00
Misha Brukman
da77da48f3 Removed trailing whitespace. 
llvm-svn: 62000
 2009-01-09 19:25:42 +00:00
Devang Patel
7fd7643d23 Request DwarfWriter. This will be used to handle dbg_* intrinsics. 
llvm-svn: 61999
 2009-01-09 19:11:50 +00:00
Chris Lattner
0030a3f5d4 fix typo Duncan noticed. 
llvm-svn: 61997
 2009-01-09 18:31:39 +00:00
Chris Lattner
1219b4e6bc Fix PR3304 
llvm-svn: 61995
 2009-01-09 18:18:43 +00:00
Misha Brukman
71c7e40966 Removed trailing whitespace from Makefiles. 
llvm-svn: 61991
 2009-01-09 16:44:42 +00:00
Mikhail Glushenkov
f6b520e88a Support llvmc plugins in out-of-tree projects. 
llvm-svn: 61990
 2009-01-09 16:31:01 +00:00
Mikhail Glushenkov
6761ea2676 Add a --check-graph option to llvmc. 
llvm-svn: 61989
 2009-01-09 16:16:27 +00:00
Dan Gohman
a707c0dafe PR2659 was fixed by r61847. Add the testcase as a regression test. 
llvm-svn: 61986
 2009-01-09 08:16:12 +00:00
Chris Lattner
660c094906 Implement rdar://6480391, extending of equality icmp's to avoid a truncation. 
I noticed this in the code compiled for a routine using std::map, which produced
this code:
	%25 = tail call i32 @memcmp(i8* %24, i8* %23, i32 6) nounwind readonly
	%.lobit.i = lshr i32 %25, 31		; <i32> [#uses=1]
	%tmp.i = trunc i32 %.lobit.i to i8		; <i8> [#uses=1]
	%toBool = icmp eq i8 %tmp.i, 0		; <i1> [#uses=1]
	br i1 %toBool, label %bb3, label %bb4
which compiled to:

	call	L_memcmp$stub
	shrl	$31, %eax
	testb	%al, %al
	jne	LBB1_11	## 

with this change, we compile it to:

	call	L_memcmp$stub
	testl	%eax, %eax
	js	LBB1_11

This triggers all the time in common code, with patters like this:

	%169 = and i32 %ply, 1		; <i32> [#uses=1]
	%170 = trunc i32 %169 to i8		; <i8> [#uses=1]
	%toBool = icmp ne i8 %170, 0		; <i1> [#uses=1]

 	%7 = lshr i32 %6, 24		; <i32> [#uses=1]
	%9 = trunc i32 %7 to i8		; <i8> [#uses=1]
	%10 = icmp ne i8 %9, 0		; <i1> [#uses=1]

etc

llvm-svn: 61985
 2009-01-09 07:47:06 +00:00
Chris Lattner
1ce1f9e7cd Remove some old code that looks like a remanant from signed-types days. 
llvm-svn: 61984
 2009-01-09 07:10:58 +00:00
Chris Lattner
6140ea4f18 Fix PR3298, a crash in Jump Threading. Apparently even 
jump threading can have bugs, who knew? ;-)

llvm-svn: 61983
 2009-01-09 06:08:12 +00:00
Chris Lattner
c421c547d2 this doesn't depend on the gcc early inliner anymore. 
llvm-svn: 61982
 2009-01-09 05:49:27 +00:00
Chris Lattner
c8cc13c98e PR3290 is now fixed. 
llvm-svn: 61981
 2009-01-09 05:46:19 +00:00
Chris Lattner
5ce930d116 Fix part 3/2 of PR3290, making instcombine zap (gep(bitcast)) when possible. 
llvm-svn: 61980
 2009-01-09 05:44:56 +00:00
Chris Lattner
4166afffa7 this test should not run opt -std-compile-opts, it should run 
just llc.

llvm-svn: 61979
 2009-01-09 05:32:00 +00:00
Chris Lattner
5902eb8ea6 add a helper method. 
llvm-svn: 61978
 2009-01-09 05:27:40 +00:00
Chris Lattner
4e48f0fb7b fit in 80 cols 
llvm-svn: 61977
 2009-01-09 04:58:01 +00:00
Chris Lattner
0e8e8e4926 move some code, check to see if the input to the GEP is a bitcast 
(which is constant time and cheap) before checking hasAllZeroIndices.

llvm-svn: 61976
 2009-01-09 04:53:57 +00:00
Dan Gohman
a487b137a8 Add load-folding table entries for MOVDQA. 
llvm-svn: 61972
 2009-01-09 02:40:34 +00:00
Dan Gohman
0e86745357 Whitespace and other minor adjustments to make SSE instructions have 
the same formatting as their corresponding SSE2 instructions, for
consistency.

llvm-svn: 61971
 2009-01-09 02:27:34 +00:00
Dale Johannesen
eb1316a896 Adjustments to last patch based on review. 
llvm-svn: 61969
 2009-01-09 01:30:11 +00:00
Dan Gohman
ff89414349 61949 accidentally introduced an escaped newline. Fix this by making 
the comment a little more verbose.

llvm-svn: 61959
 2009-01-08 23:51:48 +00:00
Devang Patel
747d4b38ad Convert DwarfWriter into a pass. 
Now Users request DwarfWriter through getAnalysisUsage() instead of creating an instance of DwarfWriter object directly.

llvm-svn: 61955
 2009-01-08 23:40:34 +00:00
Dan Gohman
321b716d84 Delete unnecessary parens around return values. 
llvm-svn: 61950
 2009-01-08 22:19:34 +00:00
Dan Gohman
88a0d4277d Fix the comment for lltok::backslash. 
llvm-svn: 61949
 2009-01-08 22:18:13 +00:00
Dan Gohman
831bc48415 Fix the path to llvm/Assembly/Parser.h in a comment. 
llvm-svn: 61948
 2009-01-08 22:17:05 +00:00
Dan Gohman
a3b6f1c02d Correct the form of the atomic opcode names in a comment. 
llvm-svn: 61947
 2009-01-08 22:14:50 +00:00
Dale Johannesen
4c25cb12ea Do not inline functions with (dynamic) alloca into 
functions that don't already have a (dynamic) alloca.
Dynamic allocas cause inefficient codegen and we shouldn't
propagate this (behavior follows gcc).  Two existing tests
assumed such inlining would be done; they are hacked by
adding an alloca in the caller, preserving the point of
the tests.

llvm-svn: 61946
 2009-01-08 21:45:23 +00:00
Duncan Sands
51e12762d5 Use mayBeOverridden here, in anticipation of the 
day when more linkage types will be handled.

llvm-svn: 61944
 2009-01-08 20:55:49 +00:00
Chris Lattner
5a8a2b046d ValueTracker can't assume that an alloca with no specified alignment 
will get its preferred alignment.  It has to be careful and cautiously assume
it will just get the ABI alignment.  This prevents instcombine from rounding
up the alignment of a load/store without adjusting the alignment of the alloca.

llvm-svn: 61934
 2009-01-08 19:28:38 +00:00
Chris Lattner
e16e141b70 one more crash from PR3281, we now diagnose: 
llvm-as: t.ll:2:39: function may not return opaque type
  %"bwmoyl" = tail call coldcc opaque @g()
                                      ^
llvm-svn: 61933
 2009-01-08 19:05:36 +00:00
Chris Lattner
456f75a745 remove some exclusions that don't exist anymore. 
llvm-svn: 61932
 2009-01-08 19:02:03 +00:00
Chris Lattner
853f4978ea this testcase is huge and hasn't regressed ever, I don't think it is worth keeping. 
llvm-svn: 61931
 2009-01-08 19:01:45 +00:00
Devang Patel
97863f513c Add DebugInfo based APIs to record source line info. 
llvm-svn: 61928
 2009-01-08 17:19:22 +00:00
Misha Brukman
ae1566f744 * Moved author attribution to CREDITS.TXT 
* Removed trailing whitespace

llvm-svn: 61927
 2009-01-08 16:40:25 +00:00
Misha Brukman
cada42bb4e * Alphabetized #includes 
* Removed trailing whitespace

llvm-svn: 61926
 2009-01-08 15:50:22 +00:00