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47209 Commits

Author SHA1 Message Date
Chris Lattner 1a1acc2191 fix PR9856, an incorrectly conservative assertion: a global can be 
"stored once" even if its address is compared.

llvm-svn: 131849
 2011-05-22 07:15:13 +00:00
Chris Lattner f0d59072de fix PR9841 by having GVN not process dead loads. This was 
causing it to get into infinite loops when it would widen a 
load (which can necessarily leave around dead loads).

llvm-svn: 131847
 2011-05-22 07:03:34 +00:00
Chris Lattner 9f1d2ded13 fix a bug for hosts without round, PR8893. 
llvm-svn: 131842
 2011-05-22 06:03:53 +00:00
Chris Lattner bbc40ac474 move PR9408 here. 
llvm-svn: 131841
 2011-05-22 05:45:06 +00:00
Nick Lewycky a68ec83b36 Teach the inliner to emit llvm.lifetime.start/end, to scope the local variables 
of the inlinee to the code representing the original function.

llvm-svn: 131838
 2011-05-22 05:22:10 +00:00
Chris Lattner 1d068cc0b0 switch to using a smallvector to avoid allocations for most normal size instructions. 
llvm-svn: 131837
 2011-05-22 04:53:24 +00:00
Chris Lattner 0388fb0ee2 tidy some things up. 
llvm-svn: 131836
 2011-05-22 04:52:24 +00:00
Charles Davis bc2daa0f93 Implement emission of all Win64 exception tables. Make the COFF streamer emit 
these tables.

llvm-svn: 131833
 2011-05-22 04:15:07 +00:00
Charles Davis 1c8bd5ad7e Make the COFF streamer emit unwind info when processing a .seh_handlerdata 
directive.

Implement emission of Win64 EH unwind info.

Pull in <cassert> in MCWin64EH.h so it can use the assert() macro.

llvm-svn: 131832
 2011-05-22 03:01:05 +00:00
Charles Davis e636022b4d Don't allow unaligned offsets and sizes in the Win64 EH directives. 
Also, fix threshold for 'Big' register saves.

llvm-svn: 131830
 2011-05-22 00:56:20 +00:00
Chris Lattner 6078926e26 random comment cleanups. 
llvm-svn: 131829
 2011-05-22 00:50:53 +00:00
Chris Lattner b5865ded27 remove StandardPasses, it has been replaced with PassManagerBuilder 
llvm-svn: 131827
 2011-05-22 00:30:45 +00:00
Chris Lattner 04120e9567 eliminate dependence on StandardPasses.h. The code generator's pass pipeline 
should eventually convert to PMBuilder, but I don't plan to do this.

llvm-svn: 131819
 2011-05-22 00:13:44 +00:00
Nick Lewycky babca9aee9 Add CreateLifetimeStart and CreateLifetimeEnd to the IRBuilder, with plans to 
use these soon.

llvm-svn: 131812
 2011-05-21 23:14:36 +00:00
Duncan Sands 5ec65765e6 Revert commit 131781, to see if it fixes the x86-64 dragonegg buildbot. 
Original log message:
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: 131809
 2011-05-21 20:54:46 +00:00
Chris Lattner 4c0d9e2249 add a copy ctor to TargetLibraryInfo. 
llvm-svn: 131806
 2011-05-21 20:09:13 +00:00
Eli Friedman 3de2ddc578 PR7952: Make isa<> use the same logic as cast<>, so that they both work 
consistently.

llvm-svn: 131803
 2011-05-21 19:13:10 +00:00
Benjamin Kramer e30b70073a X86: smulo -> add is now done target-independently in DAGCombiner, remove the patterns. 
llvm-svn: 131801
 2011-05-21 18:32:01 +00:00
Benjamin Kramer 2fd48f2730 Implement mulo x, 2 -> addo x, x in DAGCombiner. 
llvm-svn: 131800
 2011-05-21 18:31:55 +00:00
Benjamin Kramer fda5dc4968 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 6879634efd 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 8e8f59bdfb 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 691731eb9c 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 faeb520c97 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 2df6c010aa Use the correct register to access stack frame objects. 
llvm-svn: 131785
 2011-05-21 03:01:03 +00:00
Akira Hatanaka f084fcd7fe 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 8b20187c82 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 d5d0764b3b 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 54254008ba 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 d7ee0fcac9 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 0837692ac6 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 1a1d4777b9 Fix typo. When will I learn? 
llvm-svn: 131765
 2011-05-20 22:23:34 +00:00
Eli Friedman 60afcc2a6f Add fast-isel support for byval calls on x86. 
llvm-svn: 131764
 2011-05-20 22:21:04 +00:00
Charles Davis bc1feb1f25 Add .pdata and .xdata sections to the COFF TLOF implementation. 
llvm-svn: 131763
 2011-05-20 22:13:55 +00:00
Jim Grosbach 8aded86edb 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 7c619f174a 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 17c1d13ee4 Fix typo. 
llvm-svn: 131757
 2011-05-20 21:35:39 +00:00
Jim Grosbach 83c4bb157a 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 860b03b5f9 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 cae19e8671 Define functions that get/set maximum call frame size. 
llvm-svn: 131752
 2011-05-20 20:11:17 +00:00
Rafael Espindola 652bfdb1ab 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 1866808384 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
Stuart Hastings 91f1d24736 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 43407fe633 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 f44aadf0fd 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 9a115a4bd2 Now that they're implemented, make the Win64 EH MCAsmStreamer methods call 
super.

llvm-svn: 131743
 2011-05-20 18:19:22 +00:00
Evan Cheng 4fcd8250ae Revert accidental commit. 
llvm-svn: 131739
 2011-05-20 17:38:48 +00:00
Charles Davis 24b31b6b7d "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 0bf26746d9 Rename the "sandybridge" subtarget to "corei7-avx", for GCC compatibility. 
llvm-svn: 131730
 2011-05-20 15:11:26 +00:00
Benjamin Kramer cc7a928885 Remove noisy semicolons. 
llvm-svn: 131724
 2011-05-20 09:20:25 +00:00