Commit Graph

63804 Commits

Author SHA1 Message Date
Chris Lattner
7f7274ce7f Don't pass in a null pointer to std::string's ctor, an empty string
ref should produce an empty std::string.  This fixes PR7879.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111332 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-18 00:11:25 +00:00
Chris Lattner
dc65f22390 fix a broken link
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111326 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 23:26:04 +00:00
Chris Lattner
7942e3c412 include config.h to get config params, hopefully unbreaking mingw builder.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111325 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 23:22:10 +00:00
Chris Lattner
93d81b697c Fix the rest of rdar://8318441 which happens when a raw_fd_ostream
(e.g. errs()) fails in close() due to (e.g.) a broken pipe.  As
previously written, the had_error() flag would get set and then
the raw_ostream dtor would report a fatal error.  There is nothing
the client can do about this and we have no way to report the error,
so just eat it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111321 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 23:11:56 +00:00
Chris Lattner
73ebaff79f report_fatal_error can't use errs(), because errs() can call
into report_fatal_error.  Just blast the string to stderr with write(2)
and hope for the best!  Part of rdar://8318441


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111320 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 23:03:53 +00:00
Eric Christopher
68c23f8616 Temporarily revert r110987 as it's causing some miscompares in
vector heavy code.  I'll re-enable when we've tracked down the problem.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111318 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 22:55:27 +00:00
Dan Gohman
bbc1da8ded Tweak IVUsers' concept of "interesting" to exclude add recurrences
where the step value is an induction variable from an outer loop, to
avoid trouble trying to re-expand such expressions. This effectively
hides such expressions from indvars and lsr, which prevents them
from getting into trouble.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111317 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 22:50:37 +00:00
Jim Grosbach
dc140c6e7b Add materialization of virtual base registers for frame indices allocated into
the local block. Resolve references to those indices to a new base register.
For simplification and testing purposes, a new virtual base register is
allocated for each frame index being resolved. The result is truly horrible,
but correct, code that's good for exercising the new code paths.

Next up is adding thumb1 support, which should be very simple. Following that
will be adding base register re-use and implementing a reasonable ARM
heuristic for when a virtual base register should be generated at all.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111315 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 22:41:55 +00:00
Evan Cheng
b9072fdaad Add nounwind.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111312 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 22:35:20 +00:00
Daniel Dunbar
ebe7eb884e CrashRecovery: Clear the current context on the first crash, to avoid re-entering it if the cleanup code crashes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111309 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 22:32:39 +00:00
Daniel Dunbar
a8fa798246 CrashRecovery: Add CrashRecoveryContext::GetCurrent(), so clients can find the active context from anywhere.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111308 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 22:32:37 +00:00
Daniel Dunbar
c0c815e887 CrashRecovery: Make CrashRecoveryContext static methods thread safe.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111307 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 22:32:34 +00:00
Dale Johannesen
6cf64a631a Make fast scheduler handle asm clobbers correctly.
PR 7882.  Follows suggestion by Amaury Pouly, thanks.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111306 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 22:17:24 +00:00
Anton Korobeynikov
5dad73cec8 Revert part of one of the prev. patches - tailjmp will follow later.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111291 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 21:08:28 +00:00
Anton Korobeynikov
3a1e54a6b9 More fixes for win64:
- Do not clobber al during variadic calls, this is AMD64 ABI-only feature
  - Emit wincall64, where necessary
Patch by Cameron Esfahani!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111289 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 21:06:07 +00:00
Anton Korobeynikov
e9df15e65c Enable more win64 calls folding opportunities.
Patch by Cameron Esfahani!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111288 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 21:06:01 +00:00
Anton Korobeynikov
d7343ddce5 Add some win64 coff goodness.
Patch by Cameron Esfahani!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111287 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 21:05:54 +00:00
Evan Cheng
148341cc9b PHI elimination shouldn't require machineloopinfo since it's used at -O0. Move the requirement to LiveIntervalAnalysis instead. Note this does not change the number of times machineloopinfo is computed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111285 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 21:00:37 +00:00
Evan Cheng
6542416560 Machine CSE preserves CFG. Pass manager was freeing machineloopinfo after machine cse before.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111281 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 20:57:42 +00:00
Jakob Stoklund Olesen
00d3dda86f Don't call tablegen'ed Predicate_* functions in the ARM target.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111277 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 20:39:04 +00:00
Jim Grosbach
8ae231a06c silence warning
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111274 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 20:21:30 +00:00
Benjamin Kramer
81cfb8529b Remove dead code. Fixes a GCC warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111271 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 19:45:05 +00:00
Anton Korobeynikov
462aaeb178 This patch enables "make unittests" on enable-shared/mingw.
Patch by Takumi Nakamura!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111270 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 19:34:40 +00:00
Anton Korobeynikov
59a430f68f This patch enables ENABLE_SHARED=1 to build DLL based LLVM toolchain on MingW & Cygwin.
Patch by Takumi Nakamura!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111268 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 19:03:03 +00:00
Jim Grosbach
c5ed0134a7 80 column cleanup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111266 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 18:39:16 +00:00
Benjamin Kramer
e5b57347e9 Sketch i386 relocations handling, from Roman Divacky.
Hello world builds & runs now on i386/ELF with -integrated-as.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111264 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 18:20:28 +00:00
Jakob Stoklund Olesen
4bb862d179 Don't call Predicate_* methods directly from Sparc target.
Modernize predicates a bit.

The Predicate_* methods are not used by TableGen any longer. They are only
emitted for the sake of legacy code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111263 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 18:17:12 +00:00
Jim Grosbach
8708ead5a4 Add hook to examine an instruction referencing a frame index to determine
whether to allocate a virtual frame base register to resolve the frame
index reference in it. Implement a simple version for ARM to aid debugging.

In LocalStackSlotAllocation, scan the function for frame index references
to local frame indices and ask the target whether to allocate virtual
frame base registers for any it encounters. Purely infrastructural for
debug output. Next step is to actually allocate base registers, then add
intelligent re-use of them.

rdar://8277890



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111262 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 18:13:53 +00:00
Jim Grosbach
3edb904927 explicitly handle no-op cases for clarity. Fixes clang warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111260 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 18:00:41 +00:00
Benjamin Kramer
299fbe3a5a Use the correct entry size for relocation entries, from Roman Divacky.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111259 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 17:56:13 +00:00
Evan Cheng
e008384508 Move the decision logic whether it's a good idea to split a critical edge to clients. Also fixed an erroneous check. An edge is only a back edge when the from and to blocks are in the same loop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111256 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 17:43:50 +00:00
Dan Gohman
fc8042a122 When rotating loops, put the original header at the bottom of the
loop, making the resulting loop significantly less ugly.  Also, zap
its trivial PHI nodes, since it's easy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111255 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 17:39:21 +00:00
Jim Grosbach
37e59c059c remove trailing whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111254 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 17:37:22 +00:00
Benjamin Kramer
377a572d9b Differentiate between RELA and REL relocations, from Roman Divacky.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111252 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 17:30:07 +00:00
Bob Wilson
f955f290c9 Change ARM PKHTB and PKHBT instructions to use a shift_imm operand to avoid
printing "lsl #0".  This fixes the remaining parts of pr7792.  Make
corresponding changes for encoding/decoding these instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111251 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 17:23:19 +00:00
Evan Cheng
087fbeb7d1 Fix debug message.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111250 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 17:15:14 +00:00
Chris Lattner
63e4ccb3cd add some  's to a pre to avoid newlines being eaten
and the formatting being thrown off.  I admit to not knowing
what is going on here.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111249 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 17:13:42 +00:00
Dan Gohman
1c034dcbbc Use the getUniquePredecessor() utility function, instead of doing
what it does manually.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111248 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 17:07:02 +00:00
Benjamin Kramer
eb97677764 One baby step towards i386 ELF, from Roman Divacky.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111247 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 17:02:29 +00:00
Chris Lattner
23e70ebf35 fix emacs language spec's, patch by Edmund Grimley-Evans!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111241 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 16:20:04 +00:00
Nick Lewycky
83a82ac0b4 When creating a JIT, try to load the program so that we can resolve symbols
against it. This affects Windows.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111240 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 16:19:18 +00:00
Benjamin Kramer
73c32f60c4 Revert r111230, we have to find a better place for the host-specific code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111232 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 15:50:23 +00:00
Chris Lattner
6ccd0da0fe Fix failure of unittests/ExecutionEngine/JIT/MultiJITTest.cpp on
cygwin when built with ENABLE_SHARED=1.  Patch by NAKAMURA Takumi!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111231 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 15:42:43 +00:00
Benjamin Kramer
8466efc36f Micro-optimize MCObjectWriter to do a byteswap if necessary and then write the
whole integer to the stream instead of doing byte-sized writes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111230 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 13:55:45 +00:00
Benjamin Kramer
755525ad23 There is this new "LLVM" compiler that supports __builtin_bswap but thinks it's gcc 4.2.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111228 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 11:45:38 +00:00
Bob Wilson
7aaf5bf3db Allow more cases of undef shuffle indices and add tests for them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111226 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 05:54:34 +00:00
Evan Cheng
e1bcb440dc Add an option to disable codegen prepare critical edge splitting. In theory, PHI elimination is already doing all (most?) of the splitting needed. But machine-licm and machine-sink seem to miss some important optimizations when splitting is disabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111224 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 01:34:49 +00:00
Eric Christopher
44a2c3476b Fix typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111223 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 01:30:33 +00:00
Eric Christopher
0fe7d54732 Copy over some overridden MI wrappers for ARM fast-isel. This is where
we're adding predicates and optional defs to the MachineInstrs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111222 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 01:25:29 +00:00
Evan Cheng
97b9b97853 PHI elimination should not break back edge. It can cause some significant code placement issues. rdar://8263994
good:
LBB0_2:
  mov     r2, r0
  . . .
  mov     r1, r2
  bne     LBB0_2

bad:
LBB0_2:
  mov     r2, r0
  . . .
@ BB#3:
  mov     r1, r2
  b       LBB0_2


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111221 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 01:20:36 +00:00