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Author SHA1 Message Date
Benjamin Kramer
df3070e83d Implement mulo x, 2 -> addo x, x in DAGCombiner. 
llvm-svn: 131800
 2011-05-21 18:31:55 +00:00
Benjamin Kramer
e55e27c161 Merge and FileCheckize test cases. 
llvm-svn: 131799
 2011-05-21 18:31:48 +00:00
Benjamin Kramer
24f75ab769 Revert "InstCombine: Turn mul.with.overflow(X, 2) into the cheaper add.with.overflow(X, X)" 
It's better to do this in codegen, mul.with.overflow(X, 2) is more canonical because it has only one use on "X".

llvm-svn: 131798
 2011-05-21 18:31:42 +00:00
Charles Davis
525855fe48 Don't allow .seh_handler and .seh_handlerdata directives inside chained 
unwind areas.

llvm-svn: 131795
 2011-05-21 17:36:25 +00:00
Charles Davis
7f9c007dce A handler for a function in the Win64 EH scheme can be both an unwind handler 
and an exception handler. Handle that case.

Also, add an 'Emitted' member to the MCWin64EHUnwindInfo struct. It will be
needed later.

llvm-svn: 131791
 2011-05-21 15:57:49 +00:00
Benjamin Kramer
51d1eac4bc InstCombine: Turn mul.with.overflow(X, 2) into the cheaper add.with.overflow(X, X) 
llvm-svn: 131789
 2011-05-21 09:22:06 +00:00
Cameron Zwarich
28ea8de263 Fix PR9978 by adding RIP to GR64_TC so it can be used as an address in PIC code. It 
is already in GR64 for the same reasons. Since it isn't allocatable it can't cause
any problems.

llvm-svn: 131787
 2011-05-21 04:13:49 +00:00
Akira Hatanaka
af8143cdde Use the correct register to access stack frame objects. 
llvm-svn: 131785
 2011-05-21 03:01:03 +00:00
Akira Hatanaka
6605a1e1a6 Insert instructions that copy $sp to or from $fp at the right locations. 
llvm-svn: 131784
 2011-05-21 02:29:26 +00:00
Dan Gohman
048c261e5d When BasicAA can determine that two pointers have the same base but 
differ by a dynamic offset, return PartialAlias instead of MayAlias.
See the comment in the code for details. This fixes PR9971.

llvm-svn: 131781
 2011-05-21 01:05:08 +00:00
Andrew Trick
9f867fd2dc Have Program::Wait return -2 for crashed and timeouts instead of embedding 
info in the error message. Per Dan's request.

llvm-svn: 131780
 2011-05-21 00:56:46 +00:00
Charles Davis
520128d52f Set the "LastFrameInst" field when streaming a .seh_setframe directive. This 
is needed for an upcoming patch.

llvm-svn: 131772
 2011-05-21 00:09:04 +00:00
Cameron Zwarich
00ec3d1f9f Fix PR9962 by properly constraining register classes in RemoveCopyByCommutingDef(). This 
actually fixes most of the VerifyCoalescing failures in test-suite.

llvm-svn: 131768
 2011-05-20 23:25:36 +00:00
Akira Hatanaka
66b7b0949f Change the order fixed objects are created in MipsTargetLowering::LowerCall in 
preparation for reversing StackDirection.

Fixed objects are created in the following order:  
 1. Incoming arguments passed on stack.
 2. va_arg objects (include both arguments that are passed in registers and
    pointer to the location of the first va_arg argument).
 3. $gp restore slot.
 4. Outgoing arguments passed on stack.
 5. Pointer to alloca'd space.

llvm-svn: 131767
 2011-05-20 23:22:14 +00:00
Charles Davis
445c467ced Fix typo. When will I learn? 
llvm-svn: 131765
 2011-05-20 22:23:34 +00:00
Eli Friedman
dfd96ebe52 Add fast-isel support for byval calls on x86. 
llvm-svn: 131764
 2011-05-20 22:21:04 +00:00
Charles Davis
989cc73ef3 Add .pdata and .xdata sections to the COFF TLOF implementation. 
llvm-svn: 131763
 2011-05-20 22:13:55 +00:00
Jim Grosbach
909aff492f No reason not to allow defining the CFA as a reg w/ offset zero. 
llvm-svn: 131760
 2011-05-20 21:50:09 +00:00
Akira Hatanaka
84f0431846 In CC_MipsO32, allocate a stack space regardless of whether the argument is 
passed in register or on the stack.

llvm-svn: 131758
 2011-05-20 21:39:54 +00:00
Jim Grosbach
c4a65b2613 Fix typo. 
llvm-svn: 131757
 2011-05-20 21:35:39 +00:00
Jim Grosbach
b2b33616c0 Add support for frame info use of the .cfi_def_cfa directive. 
llvm-svn: 131756
 2011-05-20 21:23:17 +00:00
Jim Grosbach
8c02dcbe8e Add missing leading \t when printing .cfi_def_cfa in the asmstreamer. 
llvm-svn: 131755
 2011-05-20 21:22:37 +00:00
Akira Hatanaka
cc6174d5a5 Define functions that get/set maximum call frame size. 
llvm-svn: 131752
 2011-05-20 20:11:17 +00:00
Rafael Espindola
f114810ec8 adds some attributes to attribute section when cpu is "xscale" 
(this is what used in Android NDK, when architecture is ARMv5)

patch by Koan-Sin Tan

llvm-svn: 131751
 2011-05-20 20:10:34 +00:00
Rafael Espindola
27dbdbdf4c fixes target address tBL and tBLX and sets relocation type 
of tBL/tBLX to R_ARM_THM_CALL (ARM ELF 4.7.1.6)

Patch by koan-sin tan.

llvm-svn: 131748
 2011-05-20 20:01:01 +00:00
Argyrios Kyrtzidis
d58ffb7e7d Add asserts in StringRef to make sure we avoid undefined behavior: 
-strlen should not be called with NULL. Also guarantee that StringRef's Length is 0 if Data is NULL.
-memcmp should not be called with NULL (even if size is 0)

Patch by Matthieu Monrocq!

llvm-svn: 131747
 2011-05-20 19:24:12 +00:00
Stuart Hastings
e3158f93ec Re-commit 131641 with fixes; de-pseudoize MOVSX16rr8 and friends. 
rdar://problem/8614450

llvm-svn: 131746
 2011-05-20 19:04:40 +00:00
Akira Hatanaka
89801a318c Make $fp and $ra callee-saved registers and let PrologEpilogInserter handle 
saving and restoring them.

llvm-svn: 131745
 2011-05-20 18:39:33 +00:00
Andrew Trick
3352db291f indvars: Prototyping Sign/ZeroExtend elimination without canonical IVs. 
No functionality enabled by default. Use -disable-iv-rewrite.
Extended IVUsers to keep track of the phi that represents the users' IV.
Added the WidenIV transform to replace a narrow IV with a wide IV
by doing a one-for-one replacement of IV users instead of expanding the
SCEV expressions. [sz]exts are removed and truncs are inserted.

llvm-svn: 131744
 2011-05-20 18:25:42 +00:00
Charles Davis
6b8caffdb2 Now that they're implemented, make the Win64 EH MCAsmStreamer methods call 
super.

llvm-svn: 131743
 2011-05-20 18:19:22 +00:00
Chad Rosier
fa78ec1a3e Fixed regression due to commit 131709, which disables vararg tail call optimizations on Win64 
llvm-svn: 131740
 2011-05-20 17:49:39 +00:00
Evan Cheng
9dbb570612 Revert accidental commit. 
llvm-svn: 131739
 2011-05-20 17:38:48 +00:00
Charles Davis
5e5cc95580 "Implement" the HandlerData Win64 EH method in the base MCStreamer. 
There's really nothing to implement. All this really does is swap to a
pseudo-section that later gets written to the unwind info struct. That
needs to be implemented in the object streamers.

llvm-svn: 131734
 2011-05-20 16:06:22 +00:00
Benjamin Kramer
83096d1db1 Rename the "sandybridge" subtarget to "corei7-avx", for GCC compatibility. 
llvm-svn: 131730
 2011-05-20 15:11:26 +00:00
Benjamin Kramer
63248bc95b Remove noisy semicolons. 
llvm-svn: 131724
 2011-05-20 09:20:25 +00:00
Cameron Zwarich
a487989a73 Fix PR9960 by teaching SimpleRegisterCoalescing::AdjustCopiesBackFrom() to preserve 
the phikill flag.

llvm-svn: 131717
 2011-05-20 03:54:04 +00:00
Andrew Trick
650ac8d64f indvars: minor cleanup in preparation for sign/zero extend elimination. 
llvm-svn: 131716
 2011-05-20 03:37:48 +00:00
Akira Hatanaka
9736ffe863 Fix bug in which nodes that write to argument registers do not get glued with the JALR node. Patch by Sasa Stankovic 
llvm-svn: 131714
 2011-05-20 02:30:51 +00:00
Akira Hatanaka
bbb0805af2 Remove code that creates unnecessary frame objects. 
llvm-svn: 131711
 2011-05-20 01:45:06 +00:00
Akira Hatanaka
e96ba812ae Define variables and functions in MipsFunctionInfo. 
This is the first of a series of patches that attempt to simplify handling of 
stack frame objects. 

llvm-svn: 131710
 2011-05-20 01:17:58 +00:00
Chad Rosier
a5f0bb3719 Don't attempt to tail call optimize for Win64. 
llvm-svn: 131709
 2011-05-20 00:59:28 +00:00
Evan Cheng
a3f5204c82 Revert r131664 and fix it in instcombine instead. rdar://9467055 
llvm-svn: 131708
 2011-05-20 00:54:37 +00:00
Cameron Zwarich
4e8f708cbb Fix PR9955 by only attaching load memory operands to load instructions and 
similarly for stores. Now "make check" passes with the MachineVerifier forced
on with the VerifyCoalescing option!

llvm-svn: 131705
 2011-05-19 23:44:34 +00:00
Eli Friedman
ecdbb58b95 Add fast-isel support for zeroext and signext ret instructions on x86. 
llvm-svn: 131689
 2011-05-19 22:16:13 +00:00
Rafael Espindola
97c81eee80 Looks like OS X assemblers (including MC) don't like 
foo:
bar = foo
.quad bar

Avoid producing it. Fixes PR9951.

llvm-svn: 131687
 2011-05-19 22:05:56 +00:00
Rafael Espindola
c03bb178a0 Misc code refactorings: 
* Remove unnecessary arguments now that ForceExpAbs is a method.
* Use ForceExpAbs in EmitAbsValue.

llvm-svn: 131683
 2011-05-19 21:40:34 +00:00
Eric Christopher
74a9e350d2 Oddly people want to use the 'r' constraint for fp constants on x86. 
Fixes rdar://9218925
Fixes PR9601

llvm-svn: 131682
 2011-05-19 21:33:47 +00:00
Charles Davis
300a470f45 Implement the EndProlog Win64 EH method on the base MCStreamer. 
llvm-svn: 131679
 2011-05-19 21:24:54 +00:00
Cameron Zwarich
e876d96b4e Fix PR9947 by placing OPFL_MemRefs on the node using memory operands rather than 
the root if there is only one such node. This leaves only 2 verifier failures in
the entire test suite when running "make check".

llvm-svn: 131677
 2011-05-19 21:13:30 +00:00
Eli Friedman
97fda21a43 Fix up this test to use explicit triples (Win64 passes a different number of arguments in registers). 
llvm-svn: 131676
 2011-05-19 21:13:08 +00:00