Commit Graph

14 Commits

Author SHA1 Message Date
Dale Johannesen d679ff7330 Early implementation of tail call for ARM.
A temporary flag -arm-tail-calls defaults to off,
so there is no functional change by default.
Intrepid users may try this; simple cases work
but there are bugs.

llvm-svn: 105413
2010-06-03 21:09:53 +00:00
Johnny Chen d7209d2d56 When doing Thumb disassembly, there's no need to consider t2ADDrSPi12/t2SUBrSPi12,
as their generic counterparts t2ADDri12/t2SUBri12 should suffice.

llvm-svn: 101929
2010-04-20 18:45:24 +00:00
Johnny Chen 4e8bd58001 If all the bit positions are not specified; do not decode the instructions.
We are bound to fail!  For proper disassembly, the well-known encoding bits
of the instruction must be fully specified.

This also removes pseudo instructions from considerations of disassembly,
which is a better design and less fragile than the name matchings.

llvm-svn: 100899
2010-04-09 21:01:02 +00:00
Bob Wilson 0106063556 Provide versions of the ARM eh_sjlj_setjmp instructions for non-VFP subtargets
such that the non-VFP versions have no implicit defs of VFP registers.
If any callee-saved VFP registers are marked as having been defined, the
prologue/epilogue code will try to save and restore them.
Radar 7770432.

llvm-svn: 100892
2010-04-09 20:41:18 +00:00
Johnny Chen 298a122fb4 ARM decoder emitter should print out useful information unconditionally when it
encounters decoding conflicts, instead of wrapping it inside the DEBUG() macro. 

llvm-svn: 100886
2010-04-09 19:31:33 +00:00
Johnny Chen 75f82345c4 Now that Evan Cheng has fixed the coalescer bug (r100804), the workaround code
to avoid memcpy() call is no longer necessary.

llvm-svn: 100811
2010-04-08 21:23:54 +00:00
Benjamin Kramer 53dd088b58 Various MSVC warning fixes about truncated 64 bit shifts and const pointers passed to free.
llvm-svn: 100767
2010-04-08 15:25:57 +00:00
Eric Christopher 978d33a937 Fix typo and correct comment somewhat.
llvm-svn: 100691
2010-04-07 20:58:16 +00:00
Johnny Chen 4e2f8722c4 Re-enable ARM/Thumb disassembler and add a workaround for a memcpy() call in
ARMDecoderEmitter.cpp, with FIXME comment.

llvm-svn: 100690
2010-04-07 20:53:12 +00:00
Chandler Carruth 77074b1378 Fix a warning in GCC about a pointless typedef.
llvm-svn: 100268
2010-04-03 04:45:24 +00:00
Johnny Chen dbdd3f8b09 Move variable "Bits" declaration/definition into the DEBUG block where its usage
is expected.

llvm-svn: 100247
2010-04-02 23:13:52 +00:00
Johnny Chen 7d363b63fd Fixed build warning.
llvm-svn: 100244
2010-04-02 22:51:04 +00:00
Johnny Chen 88a7b5a724 Change from .../Support/DataTypes.h to .../System/DataTypes.h.
(Fix build failure)

llvm-svn: 100243
2010-04-02 22:41:06 +00:00
Johnny Chen 7b999ea7b7 Second try of initial ARM/Thumb disassembler check-in. It consists of a tablgen
backend (ARMDecoderEmitter) which emits the decoder functions for ARM and Thumb,
and the disassembler core which invokes the decoder function and builds up the
MCInst based on the decoded Opcode.

Reviewed by Chris Latter and Bob Wilson.

llvm-svn: 100233
2010-04-02 22:27:38 +00:00