Eli Friedman [Mon, 18 Apr 2011 05:02:31 +0000 (05:02 +0000)]
Make the StringMaps attached to MCContext use the MCContext's allocator;
reduces the number of calls to malloc().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129687
91177308-0d34-0410-b5e6-
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Anders Carlsson [Mon, 18 Apr 2011 04:55:06 +0000 (04:55 +0000)]
Use an empty ArrayRef instead of an empty std::vector for the Function::get overload that takes no parameters.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129686
91177308-0d34-0410-b5e6-
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NAKAMURA Takumi [Mon, 18 Apr 2011 01:17:51 +0000 (01:17 +0000)]
docs: Redefine Heading elements as below;
H1 ... Title (and might be Chapter in future)
H2 ... Section
H3 ... Subsection
H4 ... Sub-subsection
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129683
91177308-0d34-0410-b5e6-
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Chris Lattner [Sun, 17 Apr 2011 23:29:05 +0000 (23:29 +0000)]
introduce a new OpKind abstraction which wraps up operand flavors in a tidy little wrapper.
No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129680
91177308-0d34-0410-b5e6-
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Chris Lattner [Sun, 17 Apr 2011 22:24:13 +0000 (22:24 +0000)]
change OperandsSignature to use SmallVector<char> instead of std::vector<string>
since the strings are always exactly one character, and there are usually only 2-3 operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129678
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Chris Lattner [Sun, 17 Apr 2011 22:17:27 +0000 (22:17 +0000)]
since the VT is fixed for a ImmLeaf, there is no reason to expose it to the matching code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129677
91177308-0d34-0410-b5e6-
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Chris Lattner [Sun, 17 Apr 2011 22:12:55 +0000 (22:12 +0000)]
switch the rest of the x86 immediate patterns over to ImmLeaf,
simplifying them and exposing more information to tblgen. It would be nice
if other target authors adopted this as well, particularly arm since it has fastisel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129676
91177308-0d34-0410-b5e6-
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Chris Lattner [Sun, 17 Apr 2011 22:05:17 +0000 (22:05 +0000)]
now that predicates have a decent abstraction layer on them, introduce a new
kind of predicate: one that is specific to imm nodes. The predicate function
specified here just checks an int64_t directly instead of messing around with
SDNode's. The virtue of this is that it means that fastisel and other things
can reason about these predicates.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129675
91177308-0d34-0410-b5e6-
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Chris Lattner [Sun, 17 Apr 2011 21:38:24 +0000 (21:38 +0000)]
Rework our internal representation of node predicates to expose more
structure and fix some fixmes. We now have a TreePredicateFn class
that handles all of the decoding of these things. This is an internal
cleanup that has no impact on the code generated by tblgen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129670
91177308-0d34-0410-b5e6-
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Chris Lattner [Sun, 17 Apr 2011 21:36:19 +0000 (21:36 +0000)]
remove some debugging code I added.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129668
91177308-0d34-0410-b5e6-
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Chris Lattner [Sun, 17 Apr 2011 20:23:29 +0000 (20:23 +0000)]
1. merge fast-isel-shift-imm.ll into fast-isel-x86-64.ll
2. implement rdar://
9289501 - fast isel should fold trivial multiplies to shifts
3. teach tblgen to handle shift immediates that are different sizes than the
shifted operands, eliminating some code from the X86 fast isel backend.
4. Have FastISel::SelectBinaryOp use (the poorly named) FastEmit_ri_ function
instead of FastEmit_ri to simplify code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129666
91177308-0d34-0410-b5e6-
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Chris Lattner [Sun, 17 Apr 2011 17:47:38 +0000 (17:47 +0000)]
fix an x86 fast isel issue where we'd completely give up on folding an address
when we have a global variable base an an index. Instead, just give up on
folding the global variable.
Before we'd geenrate:
_test: ## @test
## BB#0:
movq _rtx_length@GOTPCREL(%rip), %rax
leaq (%rax), %rax
addq %rdi, %rax
movzbl (%rax), %eax
ret
now we generate:
_test: ## @test
## BB#0:
movq _rtx_length@GOTPCREL(%rip), %rax
movzbl (%rax,%rdi), %eax
ret
The difference is even more significant when there is a scale
involved.
This fixes rdar://
9289558 - total fail with addr mode formation at -O0/x86-64
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129664
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Chris Lattner [Sun, 17 Apr 2011 17:12:08 +0000 (17:12 +0000)]
fix an oversight which caused us to compile the testcase (and other
less trivial things) into a dummy lea. Before we generated:
_test: ## @test
movq _G@GOTPCREL(%rip), %rax
leaq (%rax), %rax
ret
now we produce:
_test: ## @test
movq _G@GOTPCREL(%rip), %rax
ret
This is part of rdar://
9289558
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129662
91177308-0d34-0410-b5e6-
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Chris Lattner [Sun, 17 Apr 2011 17:05:12 +0000 (17:05 +0000)]
tidy up and reduce indentation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129661
91177308-0d34-0410-b5e6-
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Chris Lattner [Sun, 17 Apr 2011 06:35:44 +0000 (06:35 +0000)]
Fix rdar://
9289512 - not folding load into compare at -O0
The basic issue here is that bottom-up isel is matching the branch
and compare, and was failing to fold the load into the branch/compare
combo. Fixing this (by allowing folding into any instruction of a
sequence that is selected) allows us to produce things like:
cmpb $0, 52(%rax)
je LBB4_2
instead of:
movb 52(%rax), %cl
cmpb $0, %cl
je LBB4_2
This makes the generated -O0 code run a bit faster, but also speeds up
compile time by putting less pressure on the register allocator and
generating less code.
This was one of the biggest classes of missing load folding. Implementing
this shrinks 176.gcc's c-decl.s (as a random example) by about 4% in (verbose-asm)
line count.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129656
91177308-0d34-0410-b5e6-
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Chris Lattner [Sun, 17 Apr 2011 06:03:19 +0000 (06:03 +0000)]
split a complex predicate out to a helper function. Simplify two for loops,
which don't need to check for falling off the end of a block *and* end of phi
nodes, since terminators are never phis.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129655
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Eli Friedman [Sun, 17 Apr 2011 02:36:27 +0000 (02:36 +0000)]
Remove working entry from README.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129654
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Chris Lattner [Sun, 17 Apr 2011 01:16:47 +0000 (01:16 +0000)]
fix rdar://
9289583 - fast isel should handle non-canonical commutative binops
allowing us to fold the immediate into the 'and' in this case:
int test1(int i) {
return 8&i;
}
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129653
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Eli Friedman [Sat, 16 Apr 2011 23:25:34 +0000 (23:25 +0000)]
PR9055: extend the fix to PR4050 (r70179) to apply to zext and anyext.
Returning a new node makes the code try to replace the old node, which
in the included testcase is killed by CSE.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129650
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Frits van Bommel [Sat, 16 Apr 2011 14:32:34 +0000 (14:32 +0000)]
Rename a misleadingly-named variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129644
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Frits van Bommel [Sat, 16 Apr 2011 14:31:50 +0000 (14:31 +0000)]
Add test cases for Jay's r129641 and fix a 32-bit-centric testcase in a file with a 64-bit datalayout.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129643
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Francois Pichet [Sat, 16 Apr 2011 14:20:39 +0000 (14:20 +0000)]
Unbreak the MSVC 2010 build.
For further information on this particular issue see: http://connect.microsoft.com/VisualStudio/feedback/details/520043/error-converting-from-null-to-a-pointer-type-in-std-pair
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129642
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Jay Foad [Sat, 16 Apr 2011 14:17:37 +0000 (14:17 +0000)]
Fix bug when checking phi operands in InstCombiner::visitPHINode(),
found by code inspection.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129641
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Francois Pichet [Sat, 16 Apr 2011 13:59:23 +0000 (13:59 +0000)]
MSVC needs the return 0 to compile.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129640
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Benjamin Kramer [Sat, 16 Apr 2011 10:30:47 +0000 (10:30 +0000)]
Remove unused variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129639
91177308-0d34-0410-b5e6-
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Benjamin Kramer [Sat, 16 Apr 2011 10:25:32 +0000 (10:25 +0000)]
Write out uint64_t as i{0..32},i{33..64} instead of i{0..32},0.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129638
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Nick Lewycky [Sat, 16 Apr 2011 04:25:36 +0000 (04:25 +0000)]
Don't use C++ comments in C code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129637
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Rafael Espindola [Sat, 16 Apr 2011 03:51:21 +0000 (03:51 +0000)]
Put each personality function in a section. This fixes the gnu ld warning:
error in foo.o; no .eh_frame_hdr table will be created.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129635
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Stuart Hastings [Sat, 16 Apr 2011 03:31:26 +0000 (03:31 +0000)]
Correct result when a branch condition is live across a block
boundary. <rdar://problem/
8933028>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129634
91177308-0d34-0410-b5e6-
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Evan Cheng [Sat, 16 Apr 2011 03:08:26 +0000 (03:08 +0000)]
Fix divmod libcall lowering. Convert to {S|U}DIVREM first and then expand the node to a libcall. rdar://
9280991
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129633
91177308-0d34-0410-b5e6-
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Rafael Espindola [Sat, 16 Apr 2011 02:06:46 +0000 (02:06 +0000)]
Fix cmake build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129632
91177308-0d34-0410-b5e6-
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Nick Lewycky [Sat, 16 Apr 2011 02:05:18 +0000 (02:05 +0000)]
Move the re-stemming function up top and use it where it's currently inlined.
Break the arc-profile code out to a function like the notes emission code is,
and reorder the functions in the file.
The only functionality change is that we no longer modify the Module when the
Module has no debug info to use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129631
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Nick Lewycky [Sat, 16 Apr 2011 01:20:23 +0000 (01:20 +0000)]
Rename LineProfiling to GCOVProfiling to more accurately represent what it
does. Also mostly implement it. Still a work-in-progress, but generates legal
output on crafted test cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129630
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Devang Patel [Sat, 16 Apr 2011 00:11:51 +0000 (00:11 +0000)]
Introduce support to encode Objective-C property information in debugging information generated for an interface.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129624
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Johnny Chen [Fri, 15 Apr 2011 22:52:15 +0000 (22:52 +0000)]
Thumb2 BFC was insufficiently encoded.
rdar://problem/
9292717
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129619
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Johnny Chen [Fri, 15 Apr 2011 22:49:08 +0000 (22:49 +0000)]
A8.6.315 VLD3 (single 3-element structure to all lanes)
The a bit must be encoded as 0.
rdar://problem/
9292625
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129618
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Akira Hatanaka [Fri, 15 Apr 2011 22:23:09 +0000 (22:23 +0000)]
Re-enable test o32_cc_vararg.ll.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129616
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Douglas Gregor [Fri, 15 Apr 2011 22:04:07 +0000 (22:04 +0000)]
Initial work to improve documentation for Clang's diagnostics, from Matthieu Monrocq
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129613
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Akira Hatanaka [Fri, 15 Apr 2011 21:51:11 +0000 (21:51 +0000)]
Reverse unnecessary changes made in r129606 and r129608. There is no change in functionality.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129612
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Cameron Zwarich [Fri, 15 Apr 2011 21:24:38 +0000 (21:24 +0000)]
Add ORR and EOR to the CMP peephole optimizer. It's hard to get isel to generate
a case involving EOR, so I only added a test for ORR.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129610
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Douglas Gregor [Fri, 15 Apr 2011 21:21:31 +0000 (21:21 +0000)]
Fix some broken links, from Matthieu Monrocq
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129609
91177308-0d34-0410-b5e6-
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Akira Hatanaka [Fri, 15 Apr 2011 21:06:38 +0000 (21:06 +0000)]
Fix lines that exceed 80 columns. There is no change in functionality.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129608
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Rafael Espindola [Fri, 15 Apr 2011 21:06:27 +0000 (21:06 +0000)]
Add this test back for Darwin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129607
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Akira Hatanaka [Fri, 15 Apr 2011 21:00:26 +0000 (21:00 +0000)]
Fix lines that have incorrect indentation or exceed 80 columns. There is no change in functionality.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129606
91177308-0d34-0410-b5e6-
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Cameron Zwarich [Fri, 15 Apr 2011 20:45:00 +0000 (20:45 +0000)]
The AND instruction leaves the V flag unmodified, so it falls victim to the same
problem as all of the other instructions we fold with CMPs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129602
91177308-0d34-0410-b5e6-
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Rafael Espindola [Fri, 15 Apr 2011 20:34:45 +0000 (20:34 +0000)]
Fix cmake build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129601
91177308-0d34-0410-b5e6-
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Rafael Espindola [Fri, 15 Apr 2011 20:32:03 +0000 (20:32 +0000)]
Some refactoring suggested by Anton Korobeynikov.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129600
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Cameron Zwarich [Fri, 15 Apr 2011 20:28:28 +0000 (20:28 +0000)]
Add missing register forms of instructions to the ARM CMP-folding code. This
fixes <rdar://problem/
9287901>.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129599
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Akira Hatanaka [Fri, 15 Apr 2011 19:52:08 +0000 (19:52 +0000)]
Add pass that expands pseudo instructions into target instructions after register allocation. Define pseudos that get expanded into mtc1 or mfc1 instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129594
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Evan Cheng [Fri, 15 Apr 2011 19:35:46 +0000 (19:35 +0000)]
Increase SubtargetFeatureKV Value and Implies fields to 64 bits since some targets are getting very close to 32 subtarget features. Also teach tablegen to error when there are more than 64 features to guard against undefined behavior. rdar://
9282332
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129590
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Joerg Sonnenberger [Fri, 15 Apr 2011 19:25:31 +0000 (19:25 +0000)]
Add encoding tests for flds/filds
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129589
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Lenny Maiorani [Fri, 15 Apr 2011 17:56:50 +0000 (17:56 +0000)]
Implements StringRef::compare with bounds. It is behaves similarly to strncmp(). Unit tests also included.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129582
91177308-0d34-0410-b5e6-
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Jakob Stoklund Olesen [Fri, 15 Apr 2011 17:24:49 +0000 (17:24 +0000)]
Teach the SplitKit blitter to handle multiply defined values as well.
The transferValues() function can now handle both singly and multiply defined
values, as long as the resulting live range is known. Only rematerialized values
have their live range recomputed by extendRange().
The updateSSA() function can now insert PHI values in bulk across multiple
values in multiple target registers in one pass. The list of blocks received
from transferValues() is in layout order which seems to work well for the
iterative algorithm. Blocks from extendRange() are still in reverse BFS order,
but this function is used so rarely now that it doesn't matter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129580
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Jakob Stoklund Olesen [Fri, 15 Apr 2011 17:24:46 +0000 (17:24 +0000)]
Remember to set flag.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129579
91177308-0d34-0410-b5e6-
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Rafael Espindola [Fri, 15 Apr 2011 15:11:06 +0000 (15:11 +0000)]
Add 129518 back with a fix for when we are producing eh just because of debug info.
Change ELF systems to use CFI for producing the EH tables. This reduces the
size of the clang binary in Debug builds from 690MB to 679MB.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129571
91177308-0d34-0410-b5e6-
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Chris Lattner [Fri, 15 Apr 2011 05:18:47 +0000 (05:18 +0000)]
Fix a ton of comment typos found by codespell. Patch by
Luis Felipe Strano Moraes!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129558
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NAKAMURA Takumi [Fri, 15 Apr 2011 03:35:57 +0000 (03:35 +0000)]
Revert r129518, "Change ELF systems to use CFI for producing the EH tables. This reduces the"
It broke several builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129557
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Evan Cheng [Fri, 15 Apr 2011 01:31:00 +0000 (01:31 +0000)]
Fix another fcopysign lowering bug. If src is f64 and destination is f32, don't
forget to right shift the source by 32 first. rdar://
9287902
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129556
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Johnny Chen [Fri, 15 Apr 2011 00:35:08 +0000 (00:35 +0000)]
For t2BFI, both Inst{26} and Inst{5} "should" be 0.
Ref: I.1 Instruction encoding diagrams and pseudocode
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129552
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Michael J. Spencer [Fri, 15 Apr 2011 00:32:41 +0000 (00:32 +0000)]
Add 3DNow! intrinsics.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129551
91177308-0d34-0410-b5e6-
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Johnny Chen [Fri, 15 Apr 2011 00:10:45 +0000 (00:10 +0000)]
The ARM disassembler did not handle the alignment correctly for VLD*DUP* instructions
(single element or n-element structure to all lanes).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129550
91177308-0d34-0410-b5e6-
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Evan Cheng [Thu, 14 Apr 2011 23:27:44 +0000 (23:27 +0000)]
Follow up on r127913. Fix Thumb revsh isel. rdar://
9286766
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129548
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Eli Friedman [Thu, 14 Apr 2011 22:41:27 +0000 (22:41 +0000)]
Add an instcombine for constructs like a | -(b != c); a select is more
canonical, and generally leads to better code. Found while looking at
an article about saturating arithmetic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129545
91177308-0d34-0410-b5e6-
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Owen Anderson [Thu, 14 Apr 2011 21:35:50 +0000 (21:35 +0000)]
Fix an infinite alternation in JumpThreading where two transforms would repeatedly undo each other. The solution is to perform more aggressive constant folding to make one of the edges just folded away rather than trying to thread it.
Fixes <rdar://problem/
9284786>.
Discovered with CSmith.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129538
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Mon P Wang [Thu, 14 Apr 2011 19:20:42 +0000 (19:20 +0000)]
Cleanup r129509 based on comments by Chris
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129532
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Johnny Chen [Thu, 14 Apr 2011 19:13:28 +0000 (19:13 +0000)]
Add sanity checkings for Thumb2 Load/Store Register Exclusive family of operations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129531
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Chris Lattner [Thu, 14 Apr 2011 18:47:18 +0000 (18:47 +0000)]
move PR9661 out to here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129527
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Owen Anderson [Thu, 14 Apr 2011 17:30:49 +0000 (17:30 +0000)]
Fix another instance of the DAG combiner not using the correct type for the RHS of a shift.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129522
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Daniel Dunbar [Thu, 14 Apr 2011 15:21:16 +0000 (15:21 +0000)]
tests: Remove a FrontendC test which is no longer valid.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129519
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Rafael Espindola [Thu, 14 Apr 2011 15:18:53 +0000 (15:18 +0000)]
Change ELF systems to use CFI for producing the EH tables. This reduces the
size of the clang binary in Debug builds from 690MB to 679MB.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129518
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Michael J. Spencer [Thu, 14 Apr 2011 14:33:36 +0000 (14:33 +0000)]
Fix whitespace and tabs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129517
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Mon P Wang [Thu, 14 Apr 2011 08:04:01 +0000 (08:04 +0000)]
Cleanup r129472 by using a utility routine as suggested by Eli.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129509
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Andrew Trick [Thu, 14 Apr 2011 05:15:06 +0000 (05:15 +0000)]
In the pre-RA scheduler, maintain cmp+br proximity.
This is done by pushing physical register definitions close to their
use, which happens to handle flag definitions if they're not glued to
the branch. This seems to be generally a good thing though, so I
didn't need to add a target hook yet.
The primary motivation is to generate code closer to what people
expect and rule out missed opportunity from enabling macro-op
fusion. As a side benefit, we get several 2-5% gains on x86
benchmarks. There is one regression:
SingleSource/Benchmarks/Shootout/lists slows down be -10%. But this is
an independent scheduler bug that will be tracked separately.
See rdar://problem/
9283108.
Incidentally, pre-RA scheduling is only half the solution. Fixing the
later passes is tracked by:
<rdar://problem/
8932804> [pre-RA-sched] on x86, attempt to schedule CMP/TEST adjacent with condition jump
Fixes:
<rdar://problem/
9262453> Scheduler unnecessary break of cmp/jump fusion
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129508
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Andrew Trick [Thu, 14 Apr 2011 05:05:36 +0000 (05:05 +0000)]
Documented bugpoint --compile-custom --compile-command.
I've used it a few times to reduce unit tests and gotten one request for information on it. It's not easy to use correctly because bugpoint doesn't tell you when you're doing it wrong.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129507
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Chris Lattner [Thu, 14 Apr 2011 04:21:42 +0000 (04:21 +0000)]
add a minor missed dag combine that is blocking mid-level optimization
improvements, that will lead to fixing PR6627.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129504
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Chris Lattner [Thu, 14 Apr 2011 04:12:47 +0000 (04:12 +0000)]
sink a call into its only use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129503
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Chris Lattner [Thu, 14 Apr 2011 02:44:53 +0000 (02:44 +0000)]
rework FoldBranchToCommonDest to exit earlier when there is a bonus
instruction around, reducing work.
Greatly simplify handling of debug instructions. There is no need to
build up a vector of them and then move them into the one predecessor
if we're processing a block. Instead just rescan the block and *copy*
them into the pred. If a block gets merged into multiple preds, this
will retain more debug info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129502
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Chris Lattner [Thu, 14 Apr 2011 02:27:25 +0000 (02:27 +0000)]
fix a couple -Wsign-compare warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129501
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Bill Wendling [Thu, 14 Apr 2011 01:46:37 +0000 (01:46 +0000)]
As Dan pointed out, movzbl, movsbl, and friends are nicer than their alias
(movzx/movsx) because they give more information. Revert that part of the patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129498
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Bill Wendling [Thu, 14 Apr 2011 01:11:51 +0000 (01:11 +0000)]
Have the X86 back-end emit the alias instead of what's being aliased. In most
cases, it's much nicer and more informative reading the alias.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129497
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Bill Wendling [Wed, 13 Apr 2011 23:36:21 +0000 (23:36 +0000)]
Add an option to not print the alias of an instruction. It defaults to "print
the alias".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129485
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Owen Anderson [Wed, 13 Apr 2011 23:22:23 +0000 (23:22 +0000)]
During post-legalization DAG combining, be careful to only create shifts where the RHS is of the legal type for the new operation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129484
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Johnny Chen [Wed, 13 Apr 2011 21:59:01 +0000 (21:59 +0000)]
Thumb disassembler did not handle tBRIND (indirect branch) properly.
rdar://problem/
9280370
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129480
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Mon P Wang [Wed, 13 Apr 2011 21:40:02 +0000 (21:40 +0000)]
Vectors with different number of elements of the same element type can have
the same allocation size but different primitive sizes(e.g., <3xi32> and
<4xi32>). When ScalarRepl promotes them, it can't use a bit cast but
should use a shuffle vector instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129472
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Johnny Chen [Wed, 13 Apr 2011 21:35:49 +0000 (21:35 +0000)]
Check for unallocated instruction encodings when disassembling Thumb Branch instructions (tBcc and t2Bcc).
rdar://problem/
9280470
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129471
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Johnny Chen [Wed, 13 Apr 2011 21:04:32 +0000 (21:04 +0000)]
The LDR*T/STR*T (unpriviledged load/store) operations don't take SP or PC as Rt.
rdar://problem/
9279440
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129469
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Cameron Zwarich [Wed, 13 Apr 2011 21:01:19 +0000 (21:01 +0000)]
Fix a typo in an ARM-specific DAG combine. This fixes <rdar://problem/
9278274>.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129468
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Benjamin Kramer [Wed, 13 Apr 2011 20:41:43 +0000 (20:41 +0000)]
Fix format string warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129467
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Cameron Zwarich [Wed, 13 Apr 2011 20:36:04 +0000 (20:36 +0000)]
Fix a regression caused by r102515 where explicit alignment on globals is
ignored. There was a test to catch this, but it was just blindly updated in
a large change. This fixes another part of <rdar://problem/
9275290>.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129466
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Devang Patel [Wed, 13 Apr 2011 19:47:41 +0000 (19:47 +0000)]
Fix debug message.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129463
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Johnny Chen [Wed, 13 Apr 2011 19:46:05 +0000 (19:46 +0000)]
Check the corner cases for t2LDRSHi12 correctly and mark invalid encodings as such.
rdar://problem/
9276651
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129462
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Devang Patel [Wed, 13 Apr 2011 19:41:17 +0000 (19:41 +0000)]
Remove extra bytes that were added for gdb. We do not have good poiner to understand actual reason behind this fixme. Spot checking suggest that newer gdb does not need this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129461
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Nick Lewycky [Wed, 13 Apr 2011 18:46:22 +0000 (18:46 +0000)]
Use positive values since the value type is unsigned. Fixes a warning on the
llvm-gcc-native-mingw32 builder.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129457
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Johnny Chen [Wed, 13 Apr 2011 17:51:02 +0000 (17:51 +0000)]
Fix a bug where for t2MOVCCi disassembly, the TIED_TO register operand was not properly handled.
rdar://problem/
9276427
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129456
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Johnny Chen [Wed, 13 Apr 2011 16:56:08 +0000 (16:56 +0000)]
Forgot to add this change for llvm.org/viewvc/llvm-project?view=rev&revision=129387.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129451
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Junjie Gu [Wed, 13 Apr 2011 16:45:49 +0000 (16:45 +0000)]
Fixed the revision 129449.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129450
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Junjie Gu [Wed, 13 Apr 2011 16:15:29 +0000 (16:15 +0000)]
Passing unroll parameters (unroll-count, threshold, and partial unroll) via LoopUnroll class's ctor. Doing so
will allow multiple context with different loop unroll parameters to run. This is a minor change and no effect
on existing application.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129449
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Jim Grosbach [Wed, 13 Apr 2011 15:49:40 +0000 (15:49 +0000)]
Load multiple object files and link them via RuntimeDyld in llvm-rtdyld.
Relocations between the object modules are properly resolved, as in the
following trivial example:
$ cat t.c
int foo();
int main() {
return foo();
}
$ cat foo.c
int foo() {
return 65;
}
$ clang -c t.c -fno-asynchronous-unwind-tables
$ clang -c foo.c -fno-asynchronous-unwind-tables
$ llvm-rtdyld t.o foo.o ; echo $?
loaded '_main' at: 0x10015c000
65
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129448
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Rafael Espindola [Wed, 13 Apr 2011 15:44:58 +0000 (15:44 +0000)]
Add the alias analysis to the C api.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129447
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Jim Grosbach [Wed, 13 Apr 2011 15:38:30 +0000 (15:38 +0000)]
Allow user-specified program entry point for llvm-rtdyld.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129446
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