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Author SHA1 Message Date
Chris Lattner
59d52a3dfe disable SmallVectorImpl's copy constructor. This prevents a class 
of base class slicing bugs reported on irc


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106028 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 18:59:43 +00:00
Bob Wilson
6fb124bee9 IfConversion's AnalyzeBlocks method always returns false; clean it up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106027 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 18:57:15 +00:00
Jim Grosbach
288694f430 fix naming 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106024 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 18:53:34 +00:00
Jakob Stoklund Olesen
1b2f94c621 Fix an exotic bug that only showed up in an internal test case. 
SimpleRegisterCoalescing::JoinIntervals() uses CoalescerPair to determine if a
copy is coalescable, and in very rare cases it can return true where LHS is not
live - the coalescable copy can come from an alias of the physreg in LHS.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106021 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 18:49:14 +00:00
Bob Wilson
669db04130 Fix a comment typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106015 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 18:19:27 +00:00
Daniel Dunbar
f19f6a9deb Remove stray semi-colon. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106009 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 17:47:24 +00:00
Bob Wilson
4ffd22d810 Add some missing checks for the case where the extract_subregs are 
combined to an insert_subreg, i.e., where the destination register is larger
than the source.  We need to check that the subregs can be composed for that
case in a symmetrical way to the case when the destination is smaller.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106004 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 17:27:54 +00:00
Jakob Stoklund Olesen
75ac4d9c2d Avoid processing early clobbers twice in RegAllocFast. 
Early clobbers defining a virtual register were first alocated to a physreg and
then processed as a physreg EC, spilling the virtreg.

This fixes PR7382.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105998 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 16:20:57 +00:00
Jakob Stoklund Olesen
40d07bbebb Add CoalescerPair helper class. 
Given a copy instruction, CoalescerPair can determine which registers to
coalesce in order to eliminate the copy. It deals with all the subreg fun to
determine a tuple (DstReg, SrcReg, SubIdx) such that:

- SrcReg is a virtual register that will disappear after coalescing.
- DstReg is a virtual or physical register whose live range will be extended.
- SubIdx is 0 when DstReg is a physical register.
- SrcReg can be joined with DstReg:SubIdx.

CoalescerPair::isCoalescable() determines if another copy instruction is
compatible with the same tuple. This fixes some NEON miscompilations where
shuffles are getting coalesced as if they were copies.

The CoalescerPair class will replace a lot of the spaghetti logic in JoinCopy
later.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105997 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 16:04:21 +00:00
Daniel Dunbar
f4a7bf4ec3 Add <cstddef> include to get ptrdiff_t, for gcc-4.6; patch by Dimitry Andric. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105994 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 14:50:42 +00:00
Bob Wilson
852a7e362e Generalize the pre-coalescing of extract_subregs feeding reg_sequences, 
replacing the overly conservative checks that I had introduced recently to
deal with correctness issues.  This makes a pretty noticable difference
in our testcases where reg_sequences are used.  I've updated one test to
check that we no longer emit the unnecessary subreg moves.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105991 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 05:56:31 +00:00
Bob Wilson
14f1d4e74b VMOVQQ and VMOVQQQQ are pseudo instructions and not predicable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105990 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 05:51:27 +00:00
Dale Johannesen
69ba5c6aa8 Revert 105986; looks like I'd better try bootstrapping. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105988 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 04:55:06 +00:00
Ted Kremenek
76863b16c6 Update CMake build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105987 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 04:08:14 +00:00
Dale Johannesen
4b559f070a The form of BuildMI used for TAILJMPr was changing the register 
containing the target address, an input, into an output.  I don't
think this actually broke anything on x86 (it does on ARM), but
it's wrong.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105986 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 03:13:49 +00:00
Jim Grosbach
400c95fe38 Make sure to skip dbg_value instructions when finding an insertion point for 
the combined load/store instruction. rdar://7797940

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105982 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 00:41:09 +00:00
Sean Hunt
9342f4f352 Add missing include to unbreak the build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105971 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-14 22:44:26 +00:00
Chris Lattner
f6c4a30984 generate better code in CheckComplexPattern 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105970 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-14 22:33:34 +00:00
Bob Wilson
d3c4284849 Rename functions referring to VMOV immediates to refer to NEON "modified 
immediate" operands.  These functions have so far only been used for VMOV
but they also apply to other NEON instructions with modified immediate
operands.  No functional changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105969 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-14 22:19:57 +00:00
Jim Grosbach
c834f413ae More dbg_value cleanup so the presence of debug info doesn't affect code-gen. 
Make sure to skip the dbg_value instructions when moving dups out of the
diamond. rdar://7797940

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105965 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-14 21:30:32 +00:00
Rafael Espindola
38a979bf95 Don't produce output only if *all* files are unused. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105962 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-14 21:20:52 +00:00
Evan Cheng
774bc882fd - Do away with SimpleHazardRecognizer.h. It's not used and offers little value. 
- Rename ExactHazardRecognizer to PostRAHazardRecognizer and move its header to include to allow targets to extend it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105959 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-14 21:06:53 +00:00
Chris Lattner
ea3447ac76 apparently lots of dupes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105956 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-14 20:19:03 +00:00
Evan Cheng
538ccb0d99 Avoid uncessary array copying. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105955 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-14 20:18:40 +00:00
Chris Lattner
6b601536ff fix a nasty bug where we were not treating available_externally 
symbols as declarations in the X86 backend.  This would manifest
on darwin x86-32 as errors like this with -fvisibility=hidden:

symbol '__ZNSbIcED1Ev' can not be undefined in a subtraction expression

This fixes PR7353.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105954 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-14 20:11:56 +00:00
Chris Lattner
82c4fbbc2f remove old test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105953 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-14 20:07:43 +00:00
Chris Lattner
efaadb6171 rename test 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105952 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-14 20:07:34 +00:00
Chris Lattner
e58867e55e jump threading can't split a critical edge from an indirectbr. This 
fixes PR7356.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105950 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-14 19:45:43 +00:00
Stuart Hastings
12b8bc1b01 Test case for Radar 8004649. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105949 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-14 18:37:04 +00:00
Bob Wilson
754f680c1f Fix a comment typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105944 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-14 18:29:23 +00:00
Chris Lattner
ef66df4da8 fix a -Wbool-conversions warning from clang. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105943 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-14 18:28:57 +00:00
Chris Lattner
98cdfc779d fix a -Wbool-conversions warning from clang. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105942 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-14 18:28:34 +00:00
Bob Wilson
bf1075cbe7 Honor the SDKROOT setting when building llvm. 
Radar 7894069.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105938 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-14 17:56:25 +00:00
Eli Friedman
e103194851 Add back some possible optimizations for va_arg, with wording that makes it 
more clear what exactly is missing.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105934 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-14 07:03:30 +00:00
Eric Christopher
2214b81196 Update html tutorial docs to match api changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105933 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-14 06:09:39 +00:00
Eric Christopher
2632bbf0de Make kaleidoscope use fp add/sub/mul. 
Patch by Patrick Flannery!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105932 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-14 06:03:16 +00:00
Nate Begeman
918f8e4ab0 Add the last of the SemaChecking-gen code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105929 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-14 05:17:23 +00:00
Benjamin Kramer
c125fedcc7 Test case for r105914. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105915 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-13 16:16:54 +00:00
Benjamin Kramer
c05cb8d561 SimplifyCFG: don't turn volatile stores to null/undef into unreachable. Fixes PR7369. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105914 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-13 14:35:54 +00:00
Benjamin Kramer
31135c0692 Let SmallVector take advantage of LiveRange's podness. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105913 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-13 12:52:38 +00:00
Nate Begeman
d72c900152 Add a helping of comments 
Add code for generating bits of semachecking


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105907 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-13 04:47:03 +00:00
Rafael Espindola
21d238fdba Merge getStoreRegOpcode and getLoadRegOpcode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105900 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-12 20:13:29 +00:00
Daniel Dunbar
9c57c29921 tests: Run macho-dump with binary unbuffered streams on Windows, I can't find a Python 2.6 way to change stdin to binary. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105894 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-12 17:05:28 +00:00
Daniel Dunbar
4fc9599b0e tests: Make macho-dump.bat actually work. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105891 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-12 16:21:54 +00:00
Daniel Dunbar
9b2cb695b3 tests: Propogate LLVM_SRC_ROOT and PYTHON_EXECUTABLE environment variables to tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105890 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-12 16:21:19 +00:00
Daniel Dunbar
1befb9b2df lit: Replace /dev/null in scripts with temporary files on Windows. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105888 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-12 16:00:10 +00:00
Chris Lattner
2a9a8ae081 improve verifier error about unterminated block to include 
function name, patch by Yuri


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105887 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-12 15:50:24 +00:00
Chris Lattner
5ca96988b0 declare a class with 'class' instead of struct to avoid tag mismatch 
warnings, and don't shift by a bool.  Patch by Rizky Herucakra!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105886 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-12 15:46:56 +00:00
Eli Friedman
8c47d3b73f Add README entry; based on testcase from Bill Hart. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105878 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-12 05:54:27 +00:00
Bruno Cardoso Lopes
2dcf6d6019 make the avx intrinsics 3 address 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105876 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-12 03:12:14 +00:00