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Author SHA1 Message Date
Chris Lattner
a80d668215 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



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61985 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-09 07:47:06 +00:00
Chris Lattner
6d6b410698 Remove some old code that looks like a remanant from signed-types days. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61984 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-09 07:10:58 +00:00
Chris Lattner
2a99b482a6 Fix PR3298, a crash in Jump Threading. Apparently even 
jump threading can have bugs, who knew? ;-)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61983 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-09 06:08:12 +00:00
Chris Lattner
d62fc8817c this doesn't depend on the gcc early inliner anymore. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61982 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-09 05:49:27 +00:00
Chris Lattner
069c59c7d1 PR3290 is now fixed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61981 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-09 05:46:19 +00:00
Chris Lattner
46cd5a13e5 Fix part 3/2 of PR3290, making instcombine zap (gep(bitcast)) when possible. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61980 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-09 05:44:56 +00:00
Chris Lattner
a545778a77 this test should not run opt -std-compile-opts, it should run 
just llc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61979 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-09 05:32:00 +00:00
Chris Lattner
3bc6ced4c0 add a helper method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61978 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-09 05:27:40 +00:00
Chris Lattner
6688d75114 fit in 80 cols 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61977 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-09 04:58:01 +00:00
Chris Lattner
5840779cc9 move some code, check to see if the input to the GEP is a bitcast 
(which is constant time and cheap) before checking hasAllZeroIndices.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61976 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-09 04:53:57 +00:00
Dan Gohman
5446274bd2 Add load-folding table entries for MOVDQA. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61972 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-09 02:40:34 +00:00
Dan Gohman
b134709a58 Whitespace and other minor adjustments to make SSE instructions have 
the same formatting as their corresponding SSE2 instructions, for
consistency.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61971 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-09 02:27:34 +00:00
Dale Johannesen
e345566f8e Adjustments to last patch based on review. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61969 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-09 01:30:11 +00:00
Dan Gohman
24c047fa6b 61949 accidentally introduced an escaped newline. Fix this by making 
the comment a little more verbose.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61959 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-08 23:51:48 +00:00
Devang Patel
eb3fc28914 Convert DwarfWriter into a pass. 
Now Users request DwarfWriter through getAnalysisUsage() instead of creating an instance of DwarfWriter object directly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61955 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-08 23:40:34 +00:00
Dan Gohman
5d5ee80ea8 Delete unnecessary parens around return values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61950 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-08 22:19:34 +00:00
Dan Gohman
069f12a590 Fix the comment for lltok::backslash. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61949 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-08 22:18:13 +00:00
Dan Gohman
5d13665c09 Fix the path to llvm/Assembly/Parser.h in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61948 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-08 22:17:05 +00:00
Dan Gohman
a82a918507 Correct the form of the atomic opcode names in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61947 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-08 22:14:50 +00:00
Dale Johannesen
4362387c74 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61946 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-08 21:45:23 +00:00
Duncan Sands
86062afbc4 Use mayBeOverridden here, in anticipation of the 
day when more linkage types will be handled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61944 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-08 20:55:49 +00:00
Chris Lattner
0f2831c820 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61934 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-08 19:28:38 +00:00
Chris Lattner
1e407c338f 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()
                                      ^



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61933 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-08 19:05:36 +00:00
Chris Lattner
d7a97f06ae remove some exclusions that don't exist anymore. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61932 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-08 19:02:03 +00:00
Chris Lattner
012a03a1d4 this testcase is huge and hasn't regressed ever, I don't think it is worth keeping. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61931 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-08 19:01:45 +00:00
Devang Patel
9f8fcfc018 Add DebugInfo based APIs to record source line info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61928 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-08 17:19:22 +00:00
Misha Brukman
ce07e99dd6 * Moved author attribution to CREDITS.TXT 
* Removed trailing whitespace


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61927 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-08 16:40:25 +00:00
Misha Brukman
2a835f947a * Alphabetized #includes 
* Removed trailing whitespace


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61926 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-08 15:50:22 +00:00
Bill Wendling
6b223d71e5 Some generic clean-ups. Also make the StringMapEntryInitializer specialization apply only to the tests that are actually testing it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61923 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-08 09:31:36 +00:00
Bill Wendling
38593664b0 * Don't explicitly cast "0" to "void*". This doesn't work well with specialized 
StringMapEntryInitializer classes. Leave it for the compiler to figure out what
 the type is and what "0" should be transformed into.

* Un-disable the unit tests which test the StringMapEntryInitializer class.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61922 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-08 08:26:46 +00:00
Chris Lattner
e5d7178b82 the new scalarrepl changes are optimizing away a temporary alloca in 
check242, which invalidates this test.  This test is an x86-32 ABI test 
that is trying to be run in a target-independent way, which is not going
to work very well.  Just remove the test.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61921 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-08 07:58:23 +00:00
Bill Wendling
1ed3663b49 80-column violation fix. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61919 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-08 07:35:39 +00:00
Chris Lattner
9fee08fce7 add some more crazy strlen and memcpy stuff I noticed in spec. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61918 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-08 07:34:55 +00:00
Chris Lattner
ffb08f569b add some notes about strlen craziness in eon. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61917 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-08 06:52:57 +00:00
Misha Brukman
538fbb5086 Remove extra blank line and space. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61916 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-08 06:11:51 +00:00
Chris Lattner
5ffe6acd57 This implements the second half of the fix for PR3290, handling 
loads from allocas that cover the entire aggregate.  This handles
some memcpy/byval cases that are produced by llvm-gcc.  This triggers
a few times in kc++ (with std::pair<std::_Rb_tree_const_iterator
<kc::impl_abstract_phylum*>,bool>) and once in 176.gcc (with %struct..0anon).




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61915 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-08 05:42:05 +00:00
Misha Brukman
8bb5e99013 * Added unittests for StringMap 
* Fixed but in StringMap::clear()
* Removed trailing whitespace

Original patch by Talin.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61914 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-08 04:48:20 +00:00
Devang Patel
2ec78c4a63 Add APIs to record regions and variables. 
Again, shamelessly copied from MMI.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61912 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-08 02:49:34 +00:00
Devang Patel
7a6e5a3531 Add APIs to manage scope using DebugInfo interface. 
This is a shameless copy of similar APIs from MachineModuleInfo. The copy from MMI will be deleted in near future.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61908 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-08 02:33:41 +00:00
Misha Brukman
e21a6bae80 * Fixed spelling of "sentinel" 
* Removed trailing whitespace


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61907 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-08 02:21:23 +00:00
Misha Brukman
5539a1ecda Use VIM's built-in shorthand for whitespace in regex. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61906 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-08 02:17:30 +00:00
Misha Brukman
cb5852d1f7 Be sure to ignore the end-of-line character when considering trailing 
whitespace.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61905 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-08 02:16:13 +00:00
Misha Brukman
ef5dc7072f Removed trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61904 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-08 02:11:55 +00:00
Bob Wilson
86e34fb20c Fix failure messages in Verifier::PerformTypeCheck. The argument numbers 
passed in to this function changed to support multiple return values,
leading to some incorrect argument numbers in the failure messages.
With this change, the ArgNo values used for return values and parameters are
disjoint, and the new IntrinsicParam function translates those ArgNo values
to strings that can be used in the messages.  This also fixes a few places
where PerformTypeCheck did not return false following calls to CheckFailed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61903 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-08 01:56:06 +00:00
Oscar Fuentes
ba811e5d6c CMake: removed lib/VMCore/DebugInfoBuilder.cpp. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61900 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-08 00:18:52 +00:00
Bob Wilson
850168c370 Assert that VectorType::getTruncatedElementVectorType is not used with 
odd bit-width vector elements.  Add a check in the verifier for this also.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61899 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-07 23:44:27 +00:00
Chris Lattner
71c3f45990 remove DebugInfoBuilder, it has been subsumed by Analysis/DebugInfo.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61898 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-07 23:25:06 +00:00
Misha Brukman
93c65c8378 Fix off-by-one error in traversing an array; this fixes a test. 
The error was reported by gcc-4.3.0 during compilation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61896 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-07 23:07:29 +00:00
Gabor Greif
fdede435b9 revert to functionally equivalent formulation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61895 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-07 23:07:22 +00:00
Gabor Greif
8fe53b733b use the obvious getters 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61893 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-07 22:39:29 +00:00