Jim Laskey [Mon, 2 Oct 2006 13:01:17 +0000 (13:01 +0000)]
Debugging kruft
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30688
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Jim Laskey [Mon, 2 Oct 2006 12:28:07 +0000 (12:28 +0000)]
Update documentaion of node annotation (coloring) in viewGraph.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30687
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Jim Laskey [Mon, 2 Oct 2006 12:26:53 +0000 (12:26 +0000)]
Add ability to annotate (color) nodes in a viewGraph.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30686
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Chris Lattner [Sun, 1 Oct 2006 22:46:33 +0000 (22:46 +0000)]
Fixme is already done
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30685
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Chris Lattner [Sun, 1 Oct 2006 22:36:45 +0000 (22:36 +0000)]
Teach globalsmodref-aa to track scalar pointer global variables which point
to unaliased allocations. Use this information to disambiguate pointers loaded
from them. This is a very common case, so it's worthwhile to handle efficiently.
This implements Analysis/GlobalsModRef/indirect-global.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30684
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Chris Lattner [Sun, 1 Oct 2006 22:35:45 +0000 (22:35 +0000)]
New testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30683
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Chris Lattner [Sun, 1 Oct 2006 19:40:58 +0000 (19:40 +0000)]
Fix a bug from r1.391 of this file, where we checked the size instead of
the alignment when promoting allocations. This implements
InstCombine/cast.ll:test32
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30682
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Chris Lattner [Sun, 1 Oct 2006 19:39:45 +0000 (19:39 +0000)]
new testcase, malloc should be promoted to [2 x double].
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30681
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Chris Lattner [Sat, 30 Sep 2006 23:32:50 +0000 (23:32 +0000)]
Fix debug output
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30680
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Chris Lattner [Sat, 30 Sep 2006 23:32:09 +0000 (23:32 +0000)]
Implement SRA of heap allocations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30679
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Chris Lattner [Sat, 30 Sep 2006 22:20:34 +0000 (22:20 +0000)]
Override use_back in instruction/basicblock to provide more type information.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30678
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Chris Lattner [Sat, 30 Sep 2006 21:31:26 +0000 (21:31 +0000)]
Add a version of the globalvariable ctor that inserts at a specific location.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30677
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Chris Lattner [Sat, 30 Sep 2006 19:40:30 +0000 (19:40 +0000)]
Add some ifdef'd out debug info
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30676
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Chris Lattner [Sat, 30 Sep 2006 00:24:20 +0000 (00:24 +0000)]
Stacker doesn't build universal right.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30675
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Evan Cheng [Fri, 29 Sep 2006 22:05:10 +0000 (22:05 +0000)]
Not needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30674
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Rafael Espindola [Fri, 29 Sep 2006 21:20:16 +0000 (21:20 +0000)]
add floating point registers
implement SINT_TO_FP
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30673
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Chris Lattner [Fri, 29 Sep 2006 18:47:13 +0000 (18:47 +0000)]
Move CompileCommonOpts to the end of the list so that EXTRA_OPTIONS=-O0 will
override the optimization level.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30672
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Chris Lattner [Fri, 29 Sep 2006 18:43:14 +0000 (18:43 +0000)]
Define this in the correct n/s
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30671
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Chris Lattner [Fri, 29 Sep 2006 17:34:56 +0000 (17:34 +0000)]
Adjust this to the wonky syntax that GCC expects.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30670
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Jim Laskey [Fri, 29 Sep 2006 17:31:45 +0000 (17:31 +0000)]
Wrong directory.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30669
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Chris Lattner [Thu, 28 Sep 2006 23:45:00 +0000 (23:45 +0000)]
Minor cleanups
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30668
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Chris Lattner [Thu, 28 Sep 2006 23:38:07 +0000 (23:38 +0000)]
Now that ConstantBool::True/False are gone, we can modify Type.cpp to
eliminate its static dtors, without having code that depends on order of
initialization. Eliminate static ctors/dtors from Type.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30667
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Chris Lattner [Thu, 28 Sep 2006 23:36:21 +0000 (23:36 +0000)]
Eliminate ConstantBool::True and ConstantBool::False. Instead, provide
ConstantBool::getTrue() and ConstantBool::getFalse().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30666
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Chris Lattner [Thu, 28 Sep 2006 23:35:22 +0000 (23:35 +0000)]
Eliminate ConstantBool::True and ConstantBool::False. Instead, provide
ConstantBool::getTrue() and ConstantBool::getFalse().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30665
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Chris Lattner [Thu, 28 Sep 2006 23:34:49 +0000 (23:34 +0000)]
Eliminate ConstantBool::True and ConstantBool::False. Instead, provideConstantBool::getTrue() and ConstantBool::getFalse().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30664
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Chris Lattner [Thu, 28 Sep 2006 23:33:12 +0000 (23:33 +0000)]
update comments
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30663
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Chris Lattner [Thu, 28 Sep 2006 23:32:43 +0000 (23:32 +0000)]
wrap long lines
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30662
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Chris Lattner [Thu, 28 Sep 2006 23:24:48 +0000 (23:24 +0000)]
simplify code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30661
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Chris Lattner [Thu, 28 Sep 2006 23:19:29 +0000 (23:19 +0000)]
Simplify some code, reformat break's
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30660
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Chris Lattner [Thu, 28 Sep 2006 23:17:41 +0000 (23:17 +0000)]
simplify code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30659
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Chris Lattner [Thu, 28 Sep 2006 23:14:29 +0000 (23:14 +0000)]
Simplify some code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30658
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Owen Anderson [Thu, 28 Sep 2006 23:02:22 +0000 (23:02 +0000)]
Another attempt at making ArgPromotion smarter. This patch no longer breaks Burg.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30657
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Chris Lattner [Thu, 28 Sep 2006 22:58:25 +0000 (22:58 +0000)]
simplify code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30656
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Chris Lattner [Thu, 28 Sep 2006 22:50:29 +0000 (22:50 +0000)]
simplify code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30655
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Reid Spencer [Thu, 28 Sep 2006 21:36:21 +0000 (21:36 +0000)]
Use the -emit-llvm switch to generate LLVM assembly that can be parsed
by the test case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30654
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Reid Spencer [Thu, 28 Sep 2006 21:20:05 +0000 (21:20 +0000)]
Add a test case for PR902.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30653
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Chris Lattner [Thu, 28 Sep 2006 20:48:45 +0000 (20:48 +0000)]
Shift amounts are always 32-bits, even in 64-bit mode. This fixes
CodeGen/PowerPC/2006-09-28-shift_64.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30652
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Chris Lattner [Thu, 28 Sep 2006 20:48:17 +0000 (20:48 +0000)]
new testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30651
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Reid Spencer [Thu, 28 Sep 2006 19:28:24 +0000 (19:28 +0000)]
Fix PR902:
Errors are generated with the YYERROR macro which can only be called from
a production (inside yyparse) because of the goto statement in the macro.
This lead to several situations where GEN_ERROR was not called but
GenerateError was used instead (because it doesn't use YYERROR). However,
in such situations, catching the error much later (e.g. at the end of
the production) is not sufficient because LLVM can assert on invalid data
before the end of the production is reached. The solution is to ensure that
the CHECK_FOR_ERROR macro (which invokes YYERROR if there's an error) is
used as soon as possible after a call to GenerateError has been made.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30650
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Chris Lattner [Thu, 28 Sep 2006 18:58:02 +0000 (18:58 +0000)]
Testcase for PR924
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30649
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Evan Cheng [Thu, 28 Sep 2006 18:52:32 +0000 (18:52 +0000)]
TargetRegisterClass specifies the desired spill alignment. However, it cannot be honored if stack alignment is smaller.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30648
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Jim Laskey [Thu, 28 Sep 2006 18:45:11 +0000 (18:45 +0000)]
Fix search file for -release.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30647
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Jim Laskey [Thu, 28 Sep 2006 17:49:20 +0000 (17:49 +0000)]
Add support for -release-asserts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30646
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Reid Spencer [Thu, 28 Sep 2006 16:53:47 +0000 (16:53 +0000)]
Provide a gdb usage fix provided by Zhongzing Xu.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30645
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Bill Wendling [Thu, 28 Sep 2006 07:10:24 +0000 (07:10 +0000)]
"Once more into the breach, dear friends, once more, or fill the wall up
with our English dead."
No! Really! Serious this time...It was how the vreg uses were being
adjusted that was causing hte Olden tests to fail. I corrected this and
the Olden and Regression tests all passed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30644
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Chris Lattner [Thu, 28 Sep 2006 06:17:10 +0000 (06:17 +0000)]
refactor critical edge breaking out into the SplitCritEdgesForPHIConstants method.
This is a baby step towards fixing PR925.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30643
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Chris Lattner [Thu, 28 Sep 2006 06:01:17 +0000 (06:01 +0000)]
add a note about a general improvement to the code generator
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30642
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Chris Lattner [Thu, 28 Sep 2006 00:38:19 +0000 (00:38 +0000)]
remove reference to dead method
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30641
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Chris Lattner [Thu, 28 Sep 2006 00:37:43 +0000 (00:37 +0000)]
remove dead method
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30640
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Chris Lattner [Thu, 28 Sep 2006 00:35:06 +0000 (00:35 +0000)]
Use the new ManagedStatic class to explicitly manage static variables, eliminating static ctors/dtors
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30639
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Chris Lattner [Thu, 28 Sep 2006 00:31:55 +0000 (00:31 +0000)]
new helper class to provide more explicit management of static ctor/dtors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30638
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Chris Lattner [Thu, 28 Sep 2006 00:11:54 +0000 (00:11 +0000)]
re-re-revert this, back to the right revision. It currently breaks bisort/mst
in olden among others.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30637
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Evan Cheng [Thu, 28 Sep 2006 00:10:27 +0000 (00:10 +0000)]
PEI now place callee save spills closest to the address pointed to by the
incoming stack. This allows X86 backend to use push / pop in epilogue /
prologue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30636
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Evan Cheng [Thu, 28 Sep 2006 00:07:19 +0000 (00:07 +0000)]
- Added a hook processFunctionBeforeCalleeSaveScn(). This is called by PEI just
before it determines which callee-save registers are to be spilled. This allows
the target to make changes such as forcing certain physical registers to be
spilled.
- Modified comments. It's important to note the order of registers in the array
returns by getCalleeSaveRegs() determines the order of callee save spill code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30635
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Chris Lattner [Thu, 28 Sep 2006 00:04:21 +0000 (00:04 +0000)]
re-revert this patch, bisort and mst are still broken in Olden.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30634
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Bill Wendling [Wed, 27 Sep 2006 22:37:35 +0000 (22:37 +0000)]
Reapplying this patch. With the newest commits, the error in Olden/bisort
has disappeared.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30633
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Chris Lattner [Wed, 27 Sep 2006 18:29:38 +0000 (18:29 +0000)]
silence warnings in release build
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30631
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Devang Patel [Wed, 27 Sep 2006 17:18:05 +0000 (17:18 +0000)]
Fix DFS walk.
Fix http://llvm.org/bugs/show_bug.cgi?id=923
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30630
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Chris Lattner [Wed, 27 Sep 2006 16:59:16 +0000 (16:59 +0000)]
Temporarily revert this. This breaks Olden/bisort on PPC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30628
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Jim Laskey [Wed, 27 Sep 2006 16:55:19 +0000 (16:55 +0000)]
Make sure C++ protection shows up in debug info
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30626
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Chris Lattner [Wed, 27 Sep 2006 16:44:09 +0000 (16:44 +0000)]
This:
AggregateString += "\0\0";
Doesn't add two nuls to the AggregateString (for obvious reasons), which
broke the asmprinter when the first character of an asm string was not
literal text.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30625
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Bill Wendling [Wed, 27 Sep 2006 09:04:15 +0000 (09:04 +0000)]
PR878: Instead of calculating the vreg to PHI use count everytime we get
a function, do it up front in linear time (going through all of the
instructions once). We create a map out of them. Then it's no problem to
use the information in it during elimination...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30624
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Chris Lattner [Wed, 27 Sep 2006 04:58:23 +0000 (04:58 +0000)]
set DEBUG_TYPE right
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30623
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Devang Patel [Wed, 27 Sep 2006 02:58:44 +0000 (02:58 +0000)]
Add llvm.org/bugs/show_bug.cgi?id=923 test case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30622
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Chris Lattner [Wed, 27 Sep 2006 02:55:21 +0000 (02:55 +0000)]
Use abstract private/comment directives, to increase portability to ppc/linux
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30621
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Chris Lattner [Wed, 27 Sep 2006 00:06:07 +0000 (00:06 +0000)]
Add support for ${:private} which prints "L" on darwin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30620
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Chris Lattner [Tue, 26 Sep 2006 23:59:50 +0000 (23:59 +0000)]
Add support for ${:comment}, which expands to the current target's comment
character, and ${:uid} which expands to a unique ID for the MachineInstr.
More can be added if/when they are needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30619
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Chris Lattner [Tue, 26 Sep 2006 23:47:10 +0000 (23:47 +0000)]
Actually, name the method PrintSpecial to match other stuff in AsmPrinter.h
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30618
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Chris Lattner [Tue, 26 Sep 2006 23:45:08 +0000 (23:45 +0000)]
Add support for ${:foo} syntax, where "foo" is passed into "printSpecial" and
has no associated operand. This is useful for portably encoding stuff like
the comment character into an asm string.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30617
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Evan Cheng [Tue, 26 Sep 2006 22:29:31 +0000 (22:29 +0000)]
Rename function. It's determining which callee-save registers to save.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30616
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Andrew Lenharth [Tue, 26 Sep 2006 20:02:30 +0000 (20:02 +0000)]
Comments on JumpTableness
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30615
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Jim Laskey [Tue, 26 Sep 2006 17:44:58 +0000 (17:44 +0000)]
Load chain check is not needed
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30613
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Jim Laskey [Tue, 26 Sep 2006 09:32:41 +0000 (09:32 +0000)]
Chain can be any operand
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30611
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Jim Laskey [Tue, 26 Sep 2006 08:14:06 +0000 (08:14 +0000)]
Wrong size for load
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30610
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Jim Laskey [Tue, 26 Sep 2006 07:37:42 +0000 (07:37 +0000)]
Can't move a load node if it's chain is not used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30609
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Chris Lattner [Tue, 26 Sep 2006 03:57:53 +0000 (03:57 +0000)]
Various random and minor code cleanups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30608
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Chris Lattner [Tue, 26 Sep 2006 03:44:20 +0000 (03:44 +0000)]
test that the no_dead_strip directive is emitted on darwin-x86
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30607
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Chris Lattner [Tue, 26 Sep 2006 03:41:59 +0000 (03:41 +0000)]
print the preds of each MBB
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30606
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Chris Lattner [Tue, 26 Sep 2006 03:39:53 +0000 (03:39 +0000)]
Compile:
int x __attribute__((used));
to:
.data
.comm _x,4 ; 'x'
.no_dead_strip _x
on both x86 and ppc darwin targets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30605
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Chris Lattner [Tue, 26 Sep 2006 03:38:18 +0000 (03:38 +0000)]
Add support for targets that want to do something with the llvm.used list,
because they have an aggressive linker that does dead code stripping.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30604
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Chris Lattner [Mon, 25 Sep 2006 22:38:36 +0000 (22:38 +0000)]
order this properly to avoid warnings in TargetAsmInfo.cpp. Add a comment
in a format that matches every other ivars in this class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30603
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Jim Laskey [Mon, 25 Sep 2006 21:11:32 +0000 (21:11 +0000)]
Accidental enable of bad code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30601
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Jim Laskey [Mon, 25 Sep 2006 19:32:58 +0000 (19:32 +0000)]
Fix chain dropping in load and drop unused stores in ret blocks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30600
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John Criswell [Mon, 25 Sep 2006 19:12:01 +0000 (19:12 +0000)]
Regression test for PR#922.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30599
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Chris Lattner [Mon, 25 Sep 2006 17:12:14 +0000 (17:12 +0000)]
more notes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30598
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Jim Laskey [Mon, 25 Sep 2006 16:29:54 +0000 (16:29 +0000)]
Core antialiasing for load and store.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30597
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Andrew Lenharth [Mon, 25 Sep 2006 14:04:53 +0000 (14:04 +0000)]
Fix
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30596
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Andrew Lenharth [Sun, 24 Sep 2006 19:46:56 +0000 (19:46 +0000)]
Fix jump tables to match gcc (and the ABI and whatnot)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30594
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Andrew Lenharth [Sun, 24 Sep 2006 19:45:58 +0000 (19:45 +0000)]
Add support for other relocation bases to jump tables, as well as custom asm directives
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30593
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Andrew Lenharth [Sun, 24 Sep 2006 19:42:02 +0000 (19:42 +0000)]
basic jump table test
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30592
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Andrew Lenharth [Sun, 24 Sep 2006 13:13:10 +0000 (13:13 +0000)]
jump table note
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30591
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Evan Cheng [Sun, 24 Sep 2006 05:22:38 +0000 (05:22 +0000)]
PIC jump table entries are always 32-bit. This fixes PIC jump table support on X86-64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30590
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Nick Lewycky [Sun, 24 Sep 2006 00:08:16 +0000 (00:08 +0000)]
Enable 'predsimplify' optimization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30589
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Nick Lewycky [Sat, 23 Sep 2006 15:13:08 +0000 (15:13 +0000)]
Style changes only. Remove dead code, fix a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30588
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Chris Lattner [Sat, 23 Sep 2006 08:19:21 +0000 (08:19 +0000)]
Be far more careful when splitting a loop header, either to form a preheader
or when splitting loops with a common header into multiple loops. In particular
the old code would always insert the preheader before the old loop header. This
is disasterous in cases where the loop hasn't been rotated. For example, it can
produce code like:
.. outside the loop...
jmp LBB1_2 #bb13.outer
LBB1_1: #bb1
movsd 8(%esp,%esi,8), %xmm1
mulsd (%edi), %xmm1
addsd %xmm0, %xmm1
addl $24, %edi
incl %esi
jmp LBB1_3 #bb13
LBB1_2: #bb13.outer
leal (%edx,%eax,8), %edi
pxor %xmm1, %xmm1
xorl %esi, %esi
LBB1_3: #bb13
movapd %xmm1, %xmm0
cmpl $4, %esi
jl LBB1_1 #bb1
Note that the loop body is actually LBB1_1 + LBB1_3, which means that the
loop now contains an uncond branch WITHIN it to jump around the inserted
loop header (LBB1_2). Doh.
This patch changes the preheader insertion code to insert it in the right
spot, producing this code:
... outside the loop, fall into the header ...
LBB1_1: #bb13.outer
leal (%edx,%eax,8), %esi
pxor %xmm0, %xmm0
xorl %edi, %edi
jmp LBB1_3 #bb13
LBB1_2: #bb1
movsd 8(%esp,%edi,8), %xmm0
mulsd (%esi), %xmm0
addsd %xmm1, %xmm0
addl $24, %esi
incl %edi
LBB1_3: #bb13
movapd %xmm0, %xmm1
cmpl $4, %edi
jl LBB1_2 #bb1
Totally crazy, no branch in the loop! :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30587
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Chris Lattner [Sat, 23 Sep 2006 07:40:52 +0000 (07:40 +0000)]
Teach UpdateDomInfoForRevectoredPreds to handle revectored preds that are not
reachable, making it general purpose enough for use by InsertPreheaderForLoop.
Eliminate custom dominfo updating code in InsertPreheaderForLoop, using
UpdateDomInfoForRevectoredPreds instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30586
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Chris Lattner [Sat, 23 Sep 2006 06:09:45 +0000 (06:09 +0000)]
remove misleading comment
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30585
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Chris Lattner [Sat, 23 Sep 2006 04:03:45 +0000 (04:03 +0000)]
add method, correct comment
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30584
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Evan Cheng [Fri, 22 Sep 2006 21:43:59 +0000 (21:43 +0000)]
Delete dead code; fix 80 col violations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30583
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Rafael Espindola [Fri, 22 Sep 2006 11:36:17 +0000 (11:36 +0000)]
add a note
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30581
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