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Author SHA1 Message Date
Eric Christopher
c9ebc75b88 Remove assert, add comment. 
llvm-svn: 115009
 2010-09-29 00:49:09 +00:00
Evan Cheng
7fffe3cf58 Assign bitwise binary instructions different itinerary classes from ALU instructions such as add / sub. 
llvm-svn: 115008
 2010-09-29 00:27:46 +00:00
Evan Cheng
39c462b4f1 Add support to model pipeline bypass / forwarding. 
llvm-svn: 115005
 2010-09-28 23:50:49 +00:00
Bill Wendling
b01224f53c And remove r114997's test. 
llvm-svn: 115003
 2010-09-28 23:24:18 +00:00
Bill Wendling
fc29f0d706 Revert r114997. It was causing a failure on darwin10-selfhost. 
llvm-svn: 115002
 2010-09-28 23:11:55 +00:00
Eric Christopher
2803dbc225 32-bit constant ints only for now. 
llvm-svn: 115001
 2010-09-28 22:47:54 +00:00
Oscar Fuentes
eb27a44982 Removed a bunch of unnecessary target_link_libraries. 
llvm-svn: 114999
 2010-09-28 22:39:14 +00:00
Oscar Fuentes
64441f124a Simplified LLVMConfig. 
llvm-svn: 114998
 2010-09-28 22:38:39 +00:00
Bill Wendling
13775375ed Fix a FIXME. _foo.eh symbols are currently always exported so that the linker 
knows about them. This is not necessary on 10.6 and later.

llvm-svn: 114997
 2010-09-28 22:36:56 +00:00
Dan Gohman
898f765c13 When an MDNode changes to become identical to another MDNode, 
delete the MDNode that changed, rather than the other MDNode.
This is less work, because it doesn't require the changed node
to be re-inserted into the uniquing map and it doesn't require
the is-function-local flag to be recomputed. Also, it avoids
trouble when the existing node is part of a complicated
data structure.

llvm-svn: 114996
 2010-09-28 22:07:19 +00:00
Owen Anderson
c34e1296b8 Add a subtarget hook for reporting the misprediction penalty. Use this to provide more precise 
cost modeling for if-conversion.  Now if only we had a way to estimate the misprediction probability.

Adjsut CodeGen/ARM/ifcvt10.ll.  The pipeline on Cortex-A8 is long enough that it is still profitable
to predicate an ldm, but the shorter pipeline on Cortex-A9 makes it unprofitable.

llvm-svn: 114995
 2010-09-28 21:57:50 +00:00
Eric Christopher
3024929d5a Integer materialization needed the same thinko change. 
llvm-svn: 114994
 2010-09-28 21:55:34 +00:00
Nick Lewycky
b9daeb2fd0 Resolve this GCC warning: 
ARMTargetMachine.cpp:53: error: control reaches end of non-void function

llvm-svn: 114992
 2010-09-28 21:40:26 +00:00
Anton Korobeynikov
f1be021755 User proper libcall names & condcodes while compiling for ARM EABI. 
Patch by Evzen Muller!

llvm-svn: 114991
 2010-09-28 21:39:26 +00:00
Dan Gohman
e6de2f7a66 Scope a varible inside an if statement, to make it clear that 
it's not used afterwards.

llvm-svn: 114986
 2010-09-28 21:02:55 +00:00
Owen Anderson
87245e5e04 Give the if-converter access to MachineLoopInfo, and use it to generate plausible branch prediction 
estimates.

llvm-svn: 114981
 2010-09-28 20:42:15 +00:00
Bill Wendling
6c49954a21 Fix spelling. 
llvm-svn: 114974
 2010-09-28 18:54:43 +00:00
Owen Anderson
c0e1200323 Part one of switching to using a more sane heuristic for determining if-conversion profitability. 
Rather than having arbitrary cutoffs, actually try to cost model the conversion.

For now, the constants are tuned to more or less match our existing behavior, but these will be
changed to reflect realistic values as this work proceeds.

llvm-svn: 114973
 2010-09-28 18:32:13 +00:00
Nick Lewycky
69d1069a4b Make ConstantRange::makeICmpRegion handle all the edge cases properly. This 
also fixes PR8250.

llvm-svn: 114972
 2010-09-28 18:18:36 +00:00
Devang Patel
e1f502ee26 Provide an interface to let FEs anchor debug info for types. 
llvm-svn: 114969
 2010-09-28 18:08:20 +00:00
Jim Grosbach
ad51f6522d Add target triple info to these tests to make the results comparable when 
hosted on different platforms.

llvm-svn: 114965
 2010-09-28 17:10:36 +00:00
Jim Grosbach
7915d03313 Factor out dbg_value comment printing and teach MC asm printing to use it. 
This should make the arm-linux self-host buildbot happy again.

llvm-svn: 114964
 2010-09-28 17:05:56 +00:00
Rafael Espindola
c604f87ba4 On elf, undefined symbols can start with .L. 
llvm-svn: 114958
 2010-09-28 16:19:11 +00:00
Oscar Fuentes
b8b0209acb Use the canonical library name for library PIC16Passes. 
llvm-svn: 114953
 2010-09-28 14:24:47 +00:00
Oscar Fuentes
748691cf20 Added library LLVMPIC16passes to CMake build. 
llvm-svn: 114952
 2010-09-28 14:02:45 +00:00
Oscar Fuentes
3c58c66484 Added PTX target to the CMake build. 
llvm-svn: 114951
 2010-09-28 14:02:36 +00:00
Oscar Fuentes
cd481d2723 Add ARM Disassembler to the CMake build. 
llvm-svn: 114949
 2010-09-28 11:48:19 +00:00
Che-Liang Chiou
cf3ce50cc0 Remove trailing spaces of MipsMachineFunction.h 
llvm-svn: 114948
 2010-09-28 10:06:53 +00:00
Che-Liang Chiou
6a72cc8a38 Remove trailing spaces of MipsTargetObjectFile.cpp 
llvm-svn: 114947
 2010-09-28 09:55:24 +00:00
Eric Christopher
bff0f1805f 80-col fixups. 
llvm-svn: 114943
 2010-09-28 04:18:29 +00:00
Bob Wilson
dc396388cb Add a command line option "-arm-strict-align" to disallow unaligned memory 
accesses for ARM targets that would otherwise allow it.  Radar 8465431.

llvm-svn: 114941
 2010-09-28 04:09:35 +00:00
Eric Christopher
92ed90ad1a Rework builtin handling and call setup. The builtin handling 
now takes a libcall operand, sets up the arguments correctly and
handles stack adjustments.

llvm-svn: 114934
 2010-09-28 01:21:42 +00:00
Eric Christopher
7d87a75fa4 Fix typo. 
llvm-svn: 114931
 2010-09-28 00:35:33 +00:00
Eric Christopher
fee68ebd81 Fix fp constant loads to have a destination register. 
llvm-svn: 114930
 2010-09-28 00:35:09 +00:00
Devang Patel
0a414c918a Remove dead argument. 
llvm-svn: 114920
 2010-09-27 23:15:27 +00:00
Owen Anderson
4e6951b92f Weight loop unrolling counts by nesting depth. Unrolling deeply nested loops tends to cause high 
register pressure and thus excess spills, which we don't currently recover from well.  This should
be re-evaluated in the future if our ability to generate good spills/splits improves.

Partial fix for <rdar://problem/7635585>.

llvm-svn: 114919
 2010-09-27 22:58:54 +00:00
Jim Grosbach
ffbf83e49f Enable the MC-ized ARM asm printer. Passing all local tests, so it's time to 
enable it for real. Leaving the CL option in place to it's easy to disable it
again if (when) testers find something I've missed.

llvm-svn: 114915
 2010-09-27 22:28:11 +00:00
Rafael Espindola
c4d0ee0b96 Write relocations in the end of the file. This matches what gas does and 
makes files easier to diff.

llvm-svn: 114898
 2010-09-27 22:04:54 +00:00
Jim Grosbach
0d15b006f7 ARM-mode eh.sjlj.longjmp MC lowering 
llvm-svn: 114896
 2010-09-27 21:47:04 +00:00
Rafael Espindola
442f81681e Make sure .text doesn't produce extra alignment. 
llvm-svn: 114895
 2010-09-27 21:40:27 +00:00
Jakob Stoklund Olesen
c9755c5213 Don't try to constant fold libm functions with non-finite arguments. 
Usually we wouldn't do this anyway because llvm_fenv_testexcept would return an
exception, but we have seen some cases where neither errno nor fenv detect an
exception on arm-linux.

llvm-svn: 114893
 2010-09-27 21:29:20 +00:00
Jim Grosbach
8cf10ca1cc Enable the MC-ized ARM asm printer. Passing all local tests, so it's time to 
enable it for real. Leaving the CL option in place to it's easy to disable it
again if (when) testers find something I've missed.

llvm-svn: 114892
 2010-09-27 21:28:44 +00:00
Rafael Espindola
f987d204d5 Factor symbol value computation into a function. 
llvm-svn: 114891
 2010-09-27 21:23:02 +00:00
Michael J. Spencer
13fb9cadcb MC-COFF: Fix signed/unsigned comparison. 
llvm-svn: 114888
 2010-09-27 21:17:39 +00:00
Chris Lattner
e97177677b reapply developer policy changes after discussion. 
llvm-svn: 114886
 2010-09-27 21:17:15 +00:00
Bill Wendling
3e1b942231 Add a new scope type "LTO_SYMBOL_SCOPE_DEFAULT_CAN_BE_HIDDEN" for the 
"linker_private_weak_auto_def" linkage type for LTO.

llvm-svn: 114868
 2010-09-27 20:17:45 +00:00
Daniel Dunbar
1f022a72ba Hard to imagine there are still people using inferior compilers. 
llvm-svn: 114862
 2010-09-27 20:12:58 +00:00
Daniel Dunbar
7179426193 MC/AsmParser: Handle exponents in floating point literals. 
llvm-svn: 114861
 2010-09-27 20:12:52 +00:00
Jakob Stoklund Olesen
cfed90fe40 Revert "Disable codegen prepare critical edge splitting. Machine instruction passes now" 
This reverts revision 114633. It was breaking llvm-gcc-i386-linux-selfhost.

It seems there is a downstream bug that is exposed by
-cgp-critical-edge-splitting=0. When that bug is fixed, this patch can go back
in.

Note that the changes to tailcallfp2.ll are not reverted. They were good are
required.

llvm-svn: 114859
 2010-09-27 18:43:48 +00:00
Jakob Stoklund Olesen
51362ba70e Explicitly disable CGP critical edge splitting for this test so it won't break 
by reenabling it temporarily.

llvm-svn: 114858
 2010-09-27 18:43:43 +00:00