Rafael Espindola
0324937229
Reduce code duplication on the TLS implementation.
...
This introduces a small regression on the generated code
quality in the case we are just computing addresses, not
loading values.
Will work on it and on X86-64 support.
llvm-svn: 68552
2009-04-07 21:37:46 +00:00
Nick Lewycky
a0dcd7e173
Remove strange extra semicolons.
...
llvm-svn: 67287
2009-03-19 05:51:39 +00:00
Bill Wendling
bfc216c45a
Make sure this doesn't access .end() too.
...
llvm-svn: 65213
2009-02-21 01:11:36 +00:00
Bill Wendling
96430050a5
Make sure we don't dereference the .end() of the container.
...
llvm-svn: 65211
2009-02-21 01:07:26 +00:00
Bill Wendling
66c3ffa2de
Propagate more debug loc infos. This also includes some code cleaning.
...
llvm-svn: 65207
2009-02-21 00:43:56 +00:00
Bill Wendling
09289bc433
We need to propagate the debug location information even when dealing with the
...
prologue/epilogue.
llvm-svn: 65206
2009-02-21 00:32:08 +00:00
Dale Johannesen
560b03bbcd
Remove non-DebugLoc versions of BuildMI from X86.
...
There were some that might even matter in X86FastISel.
llvm-svn: 64437
2009-02-13 02:33:27 +00:00
Bill Wendling
40e4b271af
Revert this. It was breaking stuff.
...
llvm-svn: 64428
2009-02-13 02:16:35 +00:00
Bill Wendling
83b6edd760
Turn off the old way of handling debug information in the code generator. Use
...
the new way, where all of the information is passed on SDNodes and machine
instructions.
llvm-svn: 64427
2009-02-13 02:01:04 +00:00
Dale Johannesen
5a21722625
Eliminate a couple of non-DebugLoc BuildMI variants.
...
Modify callers.
llvm-svn: 64409
2009-02-12 23:08:38 +00:00
Dan Gohman
2decb4495d
Don't try to set an EFLAGS operand to dead if no instruction was created.
...
This fixes a bug introduced by r61215.
llvm-svn: 64316
2009-02-11 19:50:24 +00:00
Evan Cheng
e00df1d39c
Move getPointerRegClass from TargetInstrInfo to TargetRegisterInfo.
...
llvm-svn: 63938
2009-02-06 17:43:24 +00:00
Dan Gohman
4ad174b236
Fix the Red Zone calculation for functions with frame pointers.
...
Don't use the Red Zone when dynamic stack realignment is needed.
This could be implemented, but most x86-64 ABIs don't require
dynamic stack realignment so it isn't urgent.
llvm-svn: 63074
2009-01-27 00:40:06 +00:00
Dan Gohman
3a51d8e847
Implement Red Zone utilization on x86-64. This is currently
...
disabled by default; I'll enable it when I hook it up with
the llvm-gcc flag which controls it.
llvm-svn: 63056
2009-01-26 22:22:31 +00:00
Dan Gohman
7ff343fe6c
Fix a compiler-abort on a testcase where the stack-pointer is added to
...
a symbolic constant. This is unlikely to be intentional, but it
shouldn't crash the compiler.
llvm-svn: 61408
2008-12-24 00:27:51 +00:00
Devang Patel
d4aebdfa3f
Silence unused variable warnings.
...
llvm-svn: 61392
2008-12-23 21:56:28 +00:00
Dan Gohman
1c74326cea
When emitting instructions that define EFLAGS and the EFLAGS value isn't
...
used, mark the defs as dead.
llvm-svn: 61215
2008-12-18 22:03:42 +00:00
Dan Gohman
54790143b2
When setting up the frame pointer, add it as a live-in register to all
...
non-entry blocks, so that it doesn't appear use-before-def anywhere.
llvm-svn: 61214
2008-12-18 22:01:52 +00:00
Dan Gohman
fb30c38893
Mark the x86 fp stack registers as "reserved". This tells LiveVariables
...
and the RegisterScavenger not to expect traditional liveness
techniques are applicable to these registers, since we don't fully
modify the effects of push and pop after stackification.
llvm-svn: 61179
2008-12-18 01:05:09 +00:00
Dan Gohman
6a589b31f7
Fish kill flag annotations in PUSH instructions.
...
llvm-svn: 60095
2008-11-26 06:39:12 +00:00
Bill Wendling
f8f6ed82f1
Revert r58489. It isn't correct for all cases.
...
llvm-svn: 58523
2008-10-31 18:30:19 +00:00
Bill Wendling
0f1f4f8bb1
Don't skip over all "terminator" instructions when determining where to put the
...
callee-saved restore code. It could skip over conditional jumps
accidentally. Instead, just skip the "return" instructions.
llvm-svn: 58489
2008-10-31 04:00:23 +00:00
Dan Gohman
30c5ce1b7d
Switch the MachineOperand accessors back to the short names like
...
isReg, etc., from isRegister, etc.
llvm-svn: 57006
2008-10-03 15:45:36 +00:00
Dan Gohman
4aacc3ab83
Split x86's ADJCALLSTACK instructions into 32-bit and 64-bit forms.
...
This allows the 64-bit forms to use+def RSP instead of ESP. This
doesn't fix any real bugs today, but it is more precise and it
makes the debug dumps on x86-64 look more consistent.
Also, add some comments describing the CALL instructions' physreg
operand uses and defs.
llvm-svn: 56925
2008-10-01 18:28:06 +00:00
Evan Cheng
28d9b3a8ad
Re-apply 56683 with fixes.
...
llvm-svn: 56748
2008-09-27 01:56:22 +00:00
Bill Wendling
7273078850
Temporarily reverting r56683. This is causing a failure during the build of llvm-gcc:
...
/Volumes/Gir/devel/llvm/clean/llvm-gcc.obj/./gcc/xgcc -B/Volumes/Gir/devel/llvm/clean/llvm-gcc.obj/./gcc/ -B/Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/bin/ -B/Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/lib/ -isystem /Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/include -isystem /Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/sys-include -mmacosx-version-min=10.4 -O2 -O2 -g -O2 -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -isystem ./include -fPIC -pipe -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -I. -I. -I../../llvm-gcc.src/gcc -I../../llvm-gcc.src/gcc/. -I../../llvm-gcc.src/gcc/../include -I./../intl -I../../llvm-gcc.src/gcc/../libcpp/include -I../../llvm-gcc.src/gcc/../libdecnumber -I../libdecnumber -I/Volumes/Gir/devel/llvm/clean/llvm.obj/include -I/Volumes/Gir/devel/llvm/clean/llvm.src/include -fexceptions -fvisibility=hidden -DHIDE_EXPORTS -c ../../llvm-gcc.src/gcc/unwind-dw2-fde-darwin.c -o libgcc/./unwind-dw2-fde-darwin.o
Assertion failed: (TargetRegisterInfo::isVirtualRegister(regA) && TargetRegisterInfo::isVirtualRegister(regB) && "cannot update physical register live information"), function runOnMachineFunction, file /Volumes/Gir/devel/llvm/clean/llvm.src/lib/CodeGen/TwoAddressInstructionPass.cpp, line 311.
../../llvm-gcc.src/gcc/unwind-dw2.c:1527: internal compiler error: Abort trap
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://developer.apple.com/bugreporter > for instructions.
{standard input}:3521:non-relocatable subtraction expression, "_dwarf_reg_size_table" minus "L20$pb"
{standard input}:3521:symbol: "_dwarf_reg_size_table" can't be undefined in a subtraction expression
{standard input}:3520:non-relocatable subtraction expression, "_dwarf_reg_size_table" minus "L20$pb"
...
llvm-svn: 56703
2008-09-26 22:10:44 +00:00
Evan Cheng
9946443460
Fix @llvm.frameaddress codegen. FP elimination optimization should be disabled when frame address is desired. Also add support for depth > 0.
...
llvm-svn: 56683
2008-09-26 19:48:35 +00:00
Evan Cheng
0d612aad67
X86 address displacement field must be interpreted as a 32-bit value.
...
llvm-svn: 56665
2008-09-26 16:58:16 +00:00
Anton Korobeynikov
24b906c8a3
XMM6-XMM15 are callee-saved on Win64. Patch by Nicolas Capens!
...
llvm-svn: 56568
2008-09-24 22:03:04 +00:00
Anton Korobeynikov
33c69aaf24
Reapply 55899: First draft of EH support on x86/64-linux
...
Now with fix, which prevents subtle codegen bug to trigger on darwin.
No fix for bug though, it's still there.
llvm-svn: 55955
2008-09-08 21:12:47 +00:00
Bill Wendling
4cc4caab72
Reverting r55898 to r55909. One of these patches was causing an ICE during the full bootstrap on Darwin:
...
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/xgcc
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/bin/
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/lib/
-isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/include
-isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/sys-include
-O2 -O2 -g -O2 -DIN_GCC -W -Wall -Wwrite-strings
-Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition
-isystem ./include -fPIC -pipe -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2
-D__GCC_FLOAT_NOT_NEEDED -I. -I. -I../../llvm-gcc.src/gcc
-I../../llvm-gcc.src/gcc/. -I../../llvm-gcc.src/gcc/../include
-I./../intl -I../../llvm-gcc.src/gcc/../libcpp/include
-I../../llvm-gcc.src/gcc/../libdecnumber -I../libdecnumber
-I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.obj/include
-I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/include
-DSHARED -m64 -DL_negdi2 -c ../../llvm-gcc.src/gcc/libgcc2.c -o
libgcc/x86_64/_negdi2_s.o
Assertion failed: (TargetRegisterInfo::isVirtualRegister(regA) &&
TargetRegisterInfo::isVirtualRegister(regB) && "cannot update physical
register live information"), function runOnMachineFunction, file
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/lib/CodeGen/TwoAddressInstructionPass.cpp,
line 311.
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/xgcc
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/bin/
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/lib/
-isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/include
-isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/sys-include
-O2 -O2 -g -O2 -DIN_GCC -W -Wall -Wwrite-strings
-Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition
-isystem ./include -fPIC -pipe -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2
-D__GCC_FLOAT_NOT_NEEDED -I. -I. -I../../llvm-gcc.src/gcc
-I../../llvm-gcc.src/gcc/. -I../../llvm-gcc.src/gcc/../include
-I./../intl -I../../llvm-gcc.src/gcc/../libcpp/include
-I../../llvm-gcc.src/gcc/../libdecnumber -I../libdecnumber
-I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.obj/include
-I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/include
-DSHARED -m64 -DL_lshrdi3 -c ../../llvm-gcc.src/gcc/libgcc2.c -o
libgcc/x86_64/_lshrdi3_s.o
../../llvm-gcc.src/gcc/unwind-dw2.c:1527: internal compiler error: Abort trap
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://developer.apple.com/bugreporter > for instructions.
{standard input}:unknown:Undefined local symbol LBB21_11
{standard input}:unknown:Undefined local symbol LBB21_12
{standard input}:unknown:Undefined local symbol LBB21_13
{standard input}:unknown:Undefined local symbol LBB21_8
llvm-svn: 55928
2008-09-08 17:59:12 +00:00
Anton Korobeynikov
8528e4dc99
First draft of EH support on x86/64-linux
...
llvm-svn: 55899
2008-09-08 14:21:53 +00:00
Dan Gohman
e1f9be27bc
Tidy up several unbeseeming casts from pointer to intptr_t.
...
llvm-svn: 55779
2008-09-04 17:05:41 +00:00
Evan Cheng
19738e3956
80 col. violations.
...
llvm-svn: 55341
2008-08-25 21:58:43 +00:00
Nate Begeman
730880eec2
Fit in 80 cols
...
llvm-svn: 54029
2008-07-25 17:34:41 +00:00
Dan Gohman
cd25487258
Pool-allocation for MachineInstrs, MachineBasicBlocks, and
...
MachineMemOperands. The pools are owned by MachineFunctions.
This drastically reduces the number of calls to malloc/free made
during the "Emit" phase of scheduling, as well as later phases
in CodeGen. Combined with other changes, this speeds up the
"instruction selection" phase of CodeGen by 10% in some cases.
llvm-svn: 53212
2008-07-07 23:14:23 +00:00
Evan Cheng
1f6148a84c
- Remove calls to copyKillDeadInfo which is an N^2 function. Instead, propagate kill / dead markers as new instructions are constructed in foldMemoryOperand, convertToThressAddress, etc.
...
- Also remove LiveVariables::instructionChanged, etc. Replace all calls with cheaper calls which update VarInfo kill list.
llvm-svn: 53097
2008-07-03 09:09:37 +00:00
Dan Gohman
83c1b4cede
Prune a few dependencies on MachineFunction.h.
...
llvm-svn: 52976
2008-07-01 18:15:35 +00:00
Dan Gohman
c8097f8c8c
Split ISD::LABEL into ISD::DBG_LABEL and ISD::EH_LABEL, eliminating
...
the need for a flavor operand, and add a new SDNode subclass,
LabelSDNode, for use with them to eliminate the need for a label id
operand.
Change instruction selection to let these label nodes through
unmodified instead of creating copies of them. Teach the MachineInstr
emitter how to emit a MachineInstr directly from an ISD label node.
This avoids the need for allocating SDNodes for the label id and
flavor value, as well as SDNodes for each of the post-isel label,
label id, and label flavor.
llvm-svn: 52943
2008-07-01 00:05:16 +00:00
Dale Johannesen
f170e29cf5
Fixes the last x86-64 test failure in compat.exp:
...
<16 x float> is 64-byte aligned (for some reason),
which gets us into the stack realignment code. The
computation changing FP-relative offsets to SP-relative
was broken, assiging a spill temp to a location
also used for parameter passing. This
fixes it by rounding up the stack frame to a multiple
of the largest alignment (I concluded it wasn't fixable
without doing this, but I'm not very sure.)
llvm-svn: 52750
2008-06-26 01:51:13 +00:00
Duncan Sands
d634afe3aa
Wrap MVT::ValueType in a struct to get type safety
...
and better control the abstraction. Rename the type
to MVT. To update out-of-tree patches, the main
thing to do is to rename MVT::ValueType to MVT, and
rewrite expressions like MVT::getSizeInBits(VT) in
the form VT.getSizeInBits(). Use VT.getSimpleVT()
to extract a MVT::SimpleValueType for use in switch
statements (you will get an assert failure if VT is
an extended value type - these shouldn't exist after
type legalization).
This results in a small speedup of codegen and no
new testsuite failures (x86-64 linux).
llvm-svn: 52044
2008-06-06 12:08:01 +00:00
Anton Korobeynikov
4b572e0f73
Fix typo
...
llvm-svn: 50169
2008-04-23 18:24:25 +00:00
Anton Korobeynikov
372e69e652
Only allow increase of max alignment value
...
llvm-svn: 50168
2008-04-23 18:23:50 +00:00
Anton Korobeynikov
47a8e6d7a9
Be over-conservative: scan for all used virtual registers and calculate maximal stack alignment in assumption, that there will be spill of vector register.
...
llvm-svn: 50167
2008-04-23 18:23:30 +00:00
Anton Korobeynikov
e7754f758b
Add X86 Maximal Stack Alignment Calculator Pass before RA
...
llvm-svn: 50166
2008-04-23 18:23:05 +00:00
Anton Korobeynikov
158f614c67
Do proper book-keeping of offsets and prologue/epilogue code for stack realignment
...
llvm-svn: 50163
2008-04-23 18:21:27 +00:00
Anton Korobeynikov
1f07315f47
If stack realignment is used - incoming args will use EBP as base register and locals - ESP
...
llvm-svn: 50162
2008-04-23 18:21:02 +00:00
Anton Korobeynikov
5079553b9d
Eastimate required stack alignment early, so we can decide, whether we will need frame pointer or not
...
llvm-svn: 50161
2008-04-23 18:20:17 +00:00
Anton Korobeynikov
492641d67f
Cleanup
...
llvm-svn: 50159
2008-04-23 18:19:23 +00:00
Anton Korobeynikov
87325bfdf5
Simplify
...
llvm-svn: 50158
2008-04-23 18:18:36 +00:00
Anton Korobeynikov
73935826d4
Make stack alignment options global for all targets
...
llvm-svn: 50157
2008-04-23 18:18:10 +00:00
Anton Korobeynikov
6a59c959ca
Provide option for enabling-disabling stack realignment
...
llvm-svn: 50156
2008-04-23 18:17:11 +00:00
Anton Korobeynikov
fc59ae78e0
Disable stack realignment for functions with dynamic-sized alloca's
...
llvm-svn: 50155
2008-04-23 18:16:43 +00:00
Anton Korobeynikov
7e6850d1a1
Provide convenient helpers for some operations
...
llvm-svn: 50153
2008-04-23 18:15:48 +00:00
Anton Korobeynikov
71adb49389
Whitespace cleanup
...
llvm-svn: 50152
2008-04-23 18:15:11 +00:00
Nicolas Geoffray
82baa2d2c6
Infrastructure for getting the machine code size of a function and an instruction. X86, PowerPC and ARM are implemented
...
llvm-svn: 49809
2008-04-16 20:10:13 +00:00
Dale Johannesen
edcba1161f
Reverse sense of unwind-tables option. This means
...
stack tracebacks on Darwin x86-64 won't work by default;
nevertheless, everybody but me thinks this is a good idea.
llvm-svn: 49663
2008-04-14 17:54:17 +00:00
Dale Johannesen
ec0fe04044
Implement new llc flag -disable-required-unwind-tables.
...
Corresponds to -fno-unwind-tables (usually default in gcc).
llvm-svn: 49361
2008-04-08 00:10:24 +00:00
Dale Johannesen
84a1314ea1
Cosmetic changes per EH patch review feedback.
...
llvm-svn: 49096
2008-04-02 17:04:45 +00:00
Dale Johannesen
79633a914f
Recommitting EH patch; this should answer most of the
...
review feedback.
-enable-eh is still accepted but doesn't do anything.
EH intrinsics use Dwarf EH if the target supports that,
and are handled by LowerInvoke otherwise.
The separation of the EH table and frame move data is,
I think, logically figured out, but either one still
causes full EH info to be generated (not sure how to
split the metadata correctly).
MachineModuleInfo::needsFrameInfo is no longer used and
is removed.
llvm-svn: 49064
2008-04-02 00:25:04 +00:00
Dale Johannesen
8813206b7f
Revert 49006 for the moment.
...
llvm-svn: 49046
2008-04-01 20:00:57 +00:00
Dale Johannesen
fa4433be71
Emit exception handling info for functions which are
...
not marked nounwind, or for all functions when -enable-eh
is set, provided the target supports Dwarf EH.
llvm-gcc generates nounwind in the right places; other FEs
will need to do so also. Given such a FE, -enable-eh should
no longer be needed.
llvm-svn: 49006
2008-03-31 23:40:23 +00:00
Evan Cheng
38a755499d
Move reMaterialize() from TargetRegisterInfo to TargetInstrInfo.
...
llvm-svn: 48995
2008-03-31 20:40:39 +00:00
Anton Korobeynikov
dbde70d7d6
Add information about callee-saved registers on Win64
...
llvm-svn: 48692
2008-03-22 21:04:01 +00:00
Anton Korobeynikov
c41f5b6af4
Fix newly-introduced 4.3 warnings
...
llvm-svn: 47375
2008-02-20 12:07:57 +00:00
Dan Gohman
cabaec582f
Rename MRegisterInfo to TargetRegisterInfo.
...
llvm-svn: 46930
2008-02-10 18:45:23 +00:00
Dan Gohman
d1cc100aef
Avoid needlessly casting away const qualifiers.
...
llvm-svn: 46877
2008-02-08 03:29:40 +00:00
Evan Cheng
9ff6b89bd9
Frame index can be negative.
...
llvm-svn: 46655
2008-02-02 00:17:00 +00:00
Evan Cheng
d6222fc11d
Remove the nasty LABEL hack with a much less evil one. Now llvm.dbg.func.start implies a stoppoint is set. SelectionDAGISel records a new source line but does not create a ISD::LABEL node for this special stoppoint. Asm printer will magically print this label. This ensures nothing is emitted before.
...
llvm-svn: 46635
2008-02-01 09:10:45 +00:00
Evan Cheng
705212577d
Add an extra operand to LABEL nodes which distinguishes between debug, EH, or misc labels. This fixes the EH breakage. However I am not convinced this is *the* solution.
...
llvm-svn: 46609
2008-01-31 09:59:15 +00:00
Evan Cheng
d1bed85965
Add x86 specific getFrameIndexOffset(). This fixes local variable debugging info.
...
llvm-svn: 46598
2008-01-31 04:06:00 +00:00
Evan Cheng
b2b94f7a81
Treat the label for the first @llvm.dbg.stoppoint the same way as the dbg_func_start label. Make sure nothing else is inserted before them.
...
Note this solution might be somewhat fragile since ISD::LABEL may be used for other
purposes. If that ends up to be an issue, we may need to introduce a different node
for debug labels.
llvm-svn: 46571
2008-01-30 20:08:35 +00:00
Evan Cheng
84adda6b67
Skip over the label which marks the beginning of the function before inserting prologue code.
...
llvm-svn: 46546
2008-01-30 03:57:33 +00:00
Anton Korobeynikov
37309ed741
Provide correct DWARF register numbering for debug information emission on x86-32/Darwin.
...
This should fix bunch of issues.
llvm-svn: 46337
2008-01-25 00:34:13 +00:00
Chris Lattner
f83aae613c
rename TargetInstrDescriptor -> TargetInstrDesc.
...
Make MachineInstr::getDesc return a reference instead
of a pointer, since it can never be null.
llvm-svn: 45695
2008-01-07 07:27:27 +00:00
Chris Lattner
f7f96d818f
Rename MachineInstr::getInstrDescriptor -> getDesc(), which reflects
...
that it is cheap and efficient to get.
Move a variety of predicates from TargetInstrInfo into
TargetInstrDescriptor, which makes it much easier to query a predicate
when you don't have TII around. Now you can use MI->getDesc()->isBranch()
instead of going through TII, and this is much more efficient anyway. Not
all of the predicates have been moved over yet.
Update old code that used MI->getInstrDescriptor()->Flags to use the
new predicates in many places.
llvm-svn: 45674
2008-01-07 01:56:04 +00:00
Owen Anderson
f19692b2f6
Move even more functionality from MRegisterInfo into TargetInstrInfo.
...
Some day I'll get it all moved over...
llvm-svn: 45672
2008-01-07 01:35:02 +00:00
Owen Anderson
2adf8c5533
Move some more functionality from MRegisterInfo to TargetInstrInfo.
...
llvm-svn: 45603
2008-01-04 23:57:37 +00:00
Owen Anderson
e6856128ab
Move some more instruction creation methods from RegisterInfo into InstrInfo.
...
llvm-svn: 45484
2008-01-01 21:11:32 +00:00
Owen Anderson
ae7e2c1e03
Move copyRegToReg from MRegisterInfo to TargetInstrInfo. This is part of the
...
Machine-level API cleanup instigated by Chris.
llvm-svn: 45470
2007-12-31 06:32:00 +00:00
Chris Lattner
96167aa93c
Rename SSARegMap -> MachineRegisterInfo in keeping with the idea
...
that "machine" classes are used to represent the current state of
the code being compiled. Given this expanded name, we can start
moving other stuff into it. For now, move the UsedPhysRegs and
LiveIn/LoveOuts vectors from MachineFunction into it.
Update all the clients to match.
This also reduces some needless #includes, such as MachineModuleInfo
from MachineFunction.
llvm-svn: 45467
2007-12-31 04:13:23 +00:00
Chris Lattner
9e5cc35593
Add new shorter predicates for testing machine operands for various types:
...
e.g. MO.isMBB() instead of MO.isMachineBasicBlock(). I don't plan on
switching everything over, so new clients should just start using the
shorter names.
Remove old long accessors, switching everything over to use the short
accessor: getMachineBasicBlock() -> getMBB(),
getConstantPoolIndex() -> getIndex(), setMachineBasicBlock -> setMBB(), etc.
llvm-svn: 45464
2007-12-30 23:10:15 +00:00
Chris Lattner
7504adbd72
More cleanups for MachineOperand:
...
- Eliminate the static "print" method for operands, moving it
into MachineOperand::print.
- Change various set* methods for register flags to take a bool
for the value to set it to. Remove unset* methods.
- Group methods more logically by operand flavor in MachineOperand.h
llvm-svn: 45461
2007-12-30 21:56:09 +00:00
Chris Lattner
4d0361fbf2
Shrinkify the machine operand creation method names.
...
llvm-svn: 45433
2007-12-30 00:45:46 +00:00
Chris Lattner
ad9a6ccb83
Remove attribution from file headers, per discussion on llvmdev.
...
llvm-svn: 45418
2007-12-29 20:36:04 +00:00
Evan Cheng
1d95b669b6
Make better use of instructions that clear high bits; fix various 2-wide shuffle bugs.
...
llvm-svn: 45058
2007-12-15 03:00:47 +00:00
Evan Cheng
55e450d6eb
Actually, MOVPQIto64mr is a dup of MOVPQI2QImr, MOV64toPQIrm is a dup of MOVQI2PQIrm.
...
llvm-svn: 45041
2007-12-14 20:08:14 +00:00
Nate Begeman
e9067c13ec
Allow the JIT to encode MMX instructions
...
llvm-svn: 44869
2007-12-11 18:06:14 +00:00
Evan Cheng
8464a0bf00
Add a argument to storeRegToStackSlot and storeRegToAddr to specify whether
...
the stored register is killed.
llvm-svn: 44600
2007-12-05 03:14:33 +00:00
Evan Cheng
58b387dfb0
Remove redundant foldMemoryOperand variants and other code clean up.
...
llvm-svn: 44517
2007-12-02 08:30:39 +00:00
Evan Cheng
79e8b92dc3
Allow some reloads to be folded in multi-use cases. Specifically testl r, r -> cmpl [mem], 0.
...
llvm-svn: 44479
2007-12-01 02:07:52 +00:00
Evan Cheng
fd33cb316f
Clean up sub-register implementation by moving subReg information back to
...
MachineOperand auxInfo. Previous clunky implementation uses an external map
to track sub-register uses. That works because register allocator uses
a new virtual register for each spilled use. With interval splitting (coming
soon), we may have multiple uses of the same register some of which are
of using different sub-registers from others. It's too fragile to constantly
update the information.
llvm-svn: 44104
2007-11-14 07:59:08 +00:00
Dale Johannesen
5fd9e7a615
Add parameter to getDwarfRegNum to permit targets
...
to use different mappings for EH and debug info;
no functional change yet.
Fix warning in X86CodeEmitter.
llvm-svn: 44056
2007-11-13 19:13:01 +00:00
Evan Cheng
994043f515
Fix x86-64 jit: remove reliance on Dwarf numbers.
...
llvm-svn: 44048
2007-11-13 17:54:34 +00:00
Anton Korobeynikov
8e8473c783
Use TableGen to emit information for dwarf register numbers.
...
This makes DwarfRegNum to accept list of numbers instead.
Added three different "flavours", but only slightly tested on x86-32/linux.
Please check another subtargets if possible,
llvm-svn: 43997
2007-11-11 19:50:10 +00:00
Dale Johannesen
eca19e7eca
Revert previous rewrite per chris's comments.
...
llvm-svn: 43950
2007-11-09 18:07:11 +00:00
Dale Johannesen
8a9ec1582b
Rewrite Dwarf number handling per review comments.
...
llvm-svn: 43918
2007-11-09 00:47:10 +00:00
Dale Johannesen
b11aca8a92
Complete conditionalization of Dwarf reg numbers.
...
Would somebody not on Darwin please make sure this
doesn't break anything. Exception handling failures
would be the most likely symptom.
llvm-svn: 43844
2007-11-07 21:48:35 +00:00
Dale Johannesen
a863789700
Interchange Dwarf numbers of ESP and EBP on x86 Darwin.
...
Much improvement in exception handling.
llvm-svn: 43794
2007-11-07 00:25:05 +00:00
Evan Cheng
c49995c027
Use movups to spill / restore SSE registers on targets where stacks alignment is
...
less than 16. This is a temporary solution until dynamic stack alignment is
implemented.
llvm-svn: 43703
2007-11-05 07:30:01 +00:00
Anton Korobeynikov
0d3f43480e
Fix off-by-one stack offset computations (dwarf information) for callee-saved
...
registers in case, when FP pointer was eliminated. This should fixes misc. random
EH-related crahses, when stuff is compiled with -fomit-frame-pointer.
Thanks Duncan for nailing this bug!
llvm-svn: 43381
2007-10-26 09:13:24 +00:00
Evan Cheng
ddeab10144
Fix an unfolding bug.
...
llvm-svn: 43212
2007-10-22 03:03:20 +00:00
Evan Cheng
b56784f9ea
Resolve unfold tables ambiguity.
...
llvm-svn: 43194
2007-10-19 23:50:58 +00:00
Evan Cheng
ded6550885
Local spiller optimization:
...
Turn a store folding instruction into a load folding instruction. e.g.
xorl %edi, %eax
movl %eax, -32(%ebp)
movl -36(%ebp), %eax
orl %eax, -32(%ebp)
=>
xorl %edi, %eax
orl -36(%ebp), %eax
mov %eax, -32(%ebp)
This enables the unfolding optimization for a subsequent instruction which will
also eliminate the newly introduced store instruction.
llvm-svn: 43192
2007-10-19 21:23:22 +00:00
Evan Cheng
0449186690
- Added getOpcodeAfterMemoryUnfold(). It doesn't unfold an instruction, but only returns the opcode of the instruction post unfolding.
...
- Fix some copy+paste bugs.
llvm-svn: 43153
2007-10-18 22:40:57 +00:00
Evan Cheng
c852780685
Use SmallVectorImpl instead of SmallVector with hardcoded size in MRegister public interface.
...
llvm-svn: 43150
2007-10-18 21:29:24 +00:00
Evan Cheng
2e2d6358bc
Change unfoldMemoryOperand(). User is now responsible for passing in the
...
register used by the unfolded instructions. User can also specify whether to
unfold the load, the store, or both.
llvm-svn: 42946
2007-10-13 02:35:06 +00:00
Evan Cheng
c7b7a3cb74
Fold load / store into MOV32to32_ and MOV16to16_.
...
llvm-svn: 42895
2007-10-12 08:38:01 +00:00
Arnold Schwaighofer
d47210011e
Added tail call optimization to the x86 back end. It can be
...
enabled by passing -tailcallopt to llc. The optimization is
performed if the following conditions are satisfied:
* caller/callee are fastcc
* elf/pic is disabled OR
elf/pic enabled + callee is in module + callee has
visibility protected or hidden
llvm-svn: 42870
2007-10-11 19:40:01 +00:00
Chris Lattner
fcccf4b6c4
disable this entirely: it is causing use of invalidated iterators and infinite looping.
...
llvm-svn: 42739
2007-10-07 22:00:31 +00:00
Chris Lattner
39dbb82db2
Fix many regressions on x86 by avoiding dereferencing the end iterator.
...
llvm-svn: 42738
2007-10-07 21:53:12 +00:00
Anton Korobeynikov
54ecd77023
Oops, I really wanted to commit this part also :)
...
llvm-svn: 42700
2007-10-06 16:39:43 +00:00
Anton Korobeynikov
34fefcf678
Move merge code into new helper function.
...
llvm-svn: 42699
2007-10-06 16:17:49 +00:00
Evan Cheng
6e5205d379
Added storeRegToAddr, loadRegFromAddr, and unfoldMemoryOperand's.
...
llvm-svn: 42624
2007-10-05 01:34:55 +00:00
Evan Cheng
3537dbbd1e
Refactor code to add load / store folded instructions -> register only
...
instructions reverse map.
llvm-svn: 42509
2007-10-01 23:44:33 +00:00
Evan Cheng
f3c130a8b6
Enabling new condition code modeling scheme.
...
llvm-svn: 42459
2007-09-29 00:00:36 +00:00
Dan Gohman
50747737a5
TargetAsmInfo::getAddressSize() was incorrect for x86-64 and 64-bit targets
...
other than PPC64. Instead of fixing it, just remove it and fix all the
places that use it to use TargetData::getPointerSize() instead, as there
aren't very many. Most of the references were in DwarfWriter.cpp.
llvm-svn: 42419
2007-09-27 23:12:31 +00:00
Evan Cheng
d8ab90ae1f
Use GR64 in 64-bit mode.
...
llvm-svn: 42417
2007-09-27 21:50:05 +00:00
Evan Cheng
0f9e307353
- Added MRegisterInfo::getCrossCopyRegClass() hook. For register classes where reg to reg copies are not possible, this returns another register class which registers in the specified register class can be copied to (and copy back from).
...
- X86 copyRegToReg() now supports copying between EFLAGS and GR32 / GR64 registers.
llvm-svn: 42372
2007-09-26 21:31:07 +00:00
Evan Cheng
5f9e291240
Allow copyRegToReg to emit cross register classes copies.
...
Tested with "make check"!
llvm-svn: 42346
2007-09-26 06:25:56 +00:00
Anton Korobeynikov
8cd666b659
Correctly restore stack pointer after realignment in main() on Cygwin/Mingw32
...
llvm-svn: 42332
2007-09-26 00:13:34 +00:00
Evan Cheng
24c5a1a484
Missing load / store folding entries.
...
llvm-svn: 42323
2007-09-25 22:10:43 +00:00
Evan Cheng
36b3babfde
Added support for new condition code modeling scheme (i.e. physical register dependency). These are a bunch of instructions that are duplicated so the x86 backend can support both the old and new schemes at the same time. They will be deleted after
...
all the kinks are worked out.
llvm-svn: 42285
2007-09-25 01:57:46 +00:00
Dan Gohman
32b1df2aa3
The code that used the StartLabelId label was removed, so remove the
...
code that creates the label too.
llvm-svn: 42265
2007-09-24 16:44:26 +00:00
Dan Gohman
eb622df2ef
Fix several more entries in the x86 reload/remat folding tables.
...
llvm-svn: 42162
2007-09-20 14:17:21 +00:00
Evan Cheng
ec83699473
PSHUFDmi, etc. are actually folding a load, not a store.
...
llvm-svn: 42147
2007-09-19 19:02:47 +00:00
Dan Gohman
be3b005b2d
Move the entries for 64-bit CMP, IMUL, and a few others into the correct
...
tables so that they are eligible for reload/remat folding. And add
entries for JMP and CALL.
llvm-svn: 42094
2007-09-18 14:59:14 +00:00
Dale Johannesen
46adce144c
Remove RSTRegClass case from loadRegFromStackSlot
...
and storeRegToStackSlot. Evan and I concluded this
should never be needed and it appears to be true.
(It if is needed, adjustment would be needed for
long double to work.)
llvm-svn: 42049
2007-09-17 20:15:38 +00:00
Dale Johannesen
575bd6070a
Remove the assumption that FP's are either float or
...
double from some of the many places in the optimizers
it appears, and do something reasonable with x86
long double.
Make APInt::dump() public, remove newline, use it to
dump ConstantSDNode's.
Allow APFloats in FoldingSet.
Expand X86 backend handling of long doubles (conversions
to/from int, mostly).
llvm-svn: 41967
2007-09-14 22:26:36 +00:00
Dan Gohman
fb60c0dfed
Remove isReg, isImm, and isMBB, and change all their users to use
...
isRegister, isImmediate, and isMachineBasicBlock, which are equivalent,
and more popular.
llvm-svn: 41958
2007-09-14 20:33:02 +00:00
Evan Cheng
4715ccb29c
It's not safe to rematerialize MOV32r0 etc. by simply cloning the original
...
instruction. These are implemented with xor which will modify the conditional
code. They should be rematerialized as move instructions.
llvm-svn: 41802
2007-09-10 20:48:53 +00:00
Owen Anderson
4b71e55287
Add lengthof and endof templates that hide a lot of sizeof computations.
...
Patch by Sterling Stein!
llvm-svn: 41758
2007-09-07 04:06:50 +00:00
Evan Cheng
cb317912b2
Added support to fold X86 load / store instructions. This allow rematerialized loads to be folded into their uses.
...
llvm-svn: 41599
2007-08-30 05:54:07 +00:00
Duncan Sands
26ef2a1767
Move getX86RegNum into X86RegisterInfo and use it
...
in the trampoline lowering. Lookup the jump and
mov opcodes for the trampoline rather than hard
coding them.
llvm-svn: 41577
2007-08-29 19:01:20 +00:00
Evan Cheng
ffa8cbd22b
Make sure epilogue esp adjustment is placed before any terminator and pop instructions.
...
llvm-svn: 40538
2007-07-26 17:45:41 +00:00
Anton Korobeynikov
e8170a07f8
Heal EH handling stuff by emitting correct offsets to callee-saved registers.
...
Pretty hackish, but code itself is dirty mess, so we won't make anything worse. :)
llvm-svn: 40472
2007-07-24 21:07:39 +00:00
Evan Cheng
8312ed6f77
Change instruction description to split OperandList into OutOperandList and
...
InOperandList. This gives one piece of important information: # of results
produced by an instruction.
An example of the change:
def ADD32rr : I<0x01, MRMDestReg, (ops GR32:$dst, GR32:$src1, GR32:$src2),
"add{l} {$src2, $dst|$dst, $src2}",
[(set GR32:$dst, (add GR32:$src1, GR32:$src2))]>;
=>
def ADD32rr : I<0x01, MRMDestReg, (outs GR32:$dst), (ins GR32:$src1, GR32:$src2),
"add{l} {$src2, $dst|$dst, $src2}",
[(set GR32:$dst, (add GR32:$src1, GR32:$src2))]>;
llvm-svn: 40033
2007-07-19 01:14:50 +00:00
Evan Cheng
30e121adf6
Only adjust esp around calls in presence of alloca.
...
llvm-svn: 40028
2007-07-19 00:42:05 +00:00
Evan Cheng
6a4fb5d62b
Use MOV instead of LEA to restore ESP if callee-saved frame size is 0; if previous instruction updates esp, fold it in.
...
llvm-svn: 40018
2007-07-18 21:26:06 +00:00
Evan Cheng
cf0fdbc249
Fold prologue esp update when possible.
...
llvm-svn: 39984
2007-07-17 21:26:42 +00:00
Evan Cheng
26f6d71d26
Make sure not to break eh_return.
...
llvm-svn: 39978
2007-07-17 18:40:47 +00:00
Evan Cheng
46a48c5c3e
Missed the case where alloca is used but the stack size (not including callee-saved portion) is zero. Thanks Dan.
...
llvm-svn: 39974
2007-07-17 18:03:34 +00:00
Evan Cheng
532b73311e
Use push / pop for prologues and epilogues.
...
llvm-svn: 39967
2007-07-17 07:59:08 +00:00
Anton Korobeynikov
5635277c36
Long live the exception handling!
...
This patch fills the last necessary bits to enable exceptions
handling in LLVM. Currently only on x86-32/linux.
In fact, this patch adds necessary intrinsics (and their lowering) which
represent really weird target-specific gcc builtins used inside unwinder.
After corresponding llvm-gcc patch will land (easy) exceptions should be
more or less workable. However, exceptions handling support should not be
thought as 'finished': I expect many small and not so small glitches
everywhere.
llvm-svn: 39855
2007-07-14 14:06:15 +00:00
Dan Gohman
928144b051
Define non-intrinsic instructions for vector min, max, sqrt, rsqrt, and rcp,
...
in addition to the intrinsic forms. Add spill-folding entries for these new
instructions, and for the scalar min and max instrinsic instructions which
were missing. And add some preliminary ISelLowering code for using the new
non-intrinsic vector sqrt instruction, and fneg and fabs.
llvm-svn: 38478
2007-07-10 00:05:58 +00:00
Dale Johannesen
9072b65b0b
Refactor X87 instructions. As a side effect, all
...
their names are changed.
llvm-svn: 37876
2007-07-04 21:07:47 +00:00
Dale Johannesen
7af19491d3
Fix for PR 1505 (and 1489). Rewrite X87 register
...
model to include f32 variants. Some factoring
improvments forthcoming.
llvm-svn: 37847
2007-07-03 00:53:03 +00:00
Anton Korobeynikov
7daaf71b29
More DWARF-related things cleanup:
...
1. Fix PR1380
2. Apply Duncan's patch from PR1410
3. Insert workaround for "one personality function per module" as noted in PR1414
4. Emit correct debug frames for x86/linux. This partly fixes DebugInfo/2006-11-06-StackTrace.cpp: stack trace is
shown correctly, but arguments for function on top of stack are displayed incorrectly.
llvm-svn: 37015
2007-05-12 22:36:25 +00:00
Anton Korobeynikov
44aa4c588b
Emit correct register move information in eh frames for X86. This allows Shootout-C++/except to pass on x86/linux
...
with non-llvm-compiled (e.g. "native") unwind runtime.
llvm-svn: 36647
2007-05-02 19:53:33 +00:00
Anton Korobeynikov
d1bf4af988
Emit correct DWARF reg # for RA (return address) register
...
llvm-svn: 36646
2007-05-02 08:46:03 +00:00
Evan Cheng
e47ec4d104
eliminateFrameIndex() change.
...
llvm-svn: 36626
2007-05-01 09:13:03 +00:00
Evan Cheng
c6fa6cb4c5
Fix for PR1348. If stack inc / dec amount is > 32-bits, issue a series of add / sub instructions.
...
llvm-svn: 36456
2007-04-26 01:09:28 +00:00
Chris Lattner
fd730d86e3
do the multiplication as signed, so that 2*-2 == -4 instead of 4294967292
...
when promoted to 64-bits
llvm-svn: 36442
2007-04-25 17:23:53 +00:00
Chris Lattner
ca7480e8cb
support for >4G stack frames
...
llvm-svn: 36425
2007-04-25 04:30:24 +00:00
Chris Lattner
452294cb99
support >4G stack frames
...
llvm-svn: 36423
2007-04-25 04:25:10 +00:00
Bill Wendling
54134a37e0
Add the PADDQ to the list.
...
llvm-svn: 36406
2007-04-24 21:19:14 +00:00
Chris Lattner
c7109ece27
rename X86FunctionInfo to X86MachineFunctionInfo to match the header file
...
it is defined in.
llvm-svn: 36196
2007-04-17 17:21:52 +00:00
Anton Korobeynikov
9bc4b792bf
Implemented correct stack probing on mingw/cygwin for dynamic alloca's.
...
Also, fixed static case in presence of eax livin. This fixes PR331
PS: Why don't we still have push/pop instructions? :)
llvm-svn: 36195
2007-04-17 09:20:00 +00:00
Bill Wendling
a2eabd50c0
Changed to new MMX_ recipes.
...
llvm-svn: 35617
2007-04-03 06:18:31 +00:00
Evan Cheng
41f4f032ee
Added MRegisterInfo hook to re-materialize an instruction.
...
llvm-svn: 35205
2007-03-20 08:09:38 +00:00
Bill Wendling
5fef3fd7e7
Added "padd*" support for MMX. Added MMX move stuff to X86InstrInfo so that
...
moves, loads, etc. are recognized.
llvm-svn: 35031
2007-03-08 22:09:11 +00:00
Evan Cheng
116f97f2c7
PEI now passes a RegScavenger ptr to eliminateFrameIndex.
...
llvm-svn: 34707
2007-02-28 00:21:17 +00:00
Evan Cheng
da51cf986a
By default, spills kills the register being stored.
...
llvm-svn: 34515
2007-02-23 01:10:04 +00:00
Jim Laskey
6a937ad320
Support to provide exception and selector registers.
...
llvm-svn: 34482
2007-02-21 22:54:50 +00:00
Evan Cheng
e4ab9c032b
Re-apply my liveintervalanalysis changes. Now with PR1207 fixes.
...
llvm-svn: 34428
2007-02-19 21:49:54 +00:00
Reid Spencer
b27fcf3482
For PR1207:
...
Revert patches that caused the problem. Evan, please investigate and reapply
when you've discovered the problem.
llvm-svn: 34399
2007-02-19 03:20:00 +00:00
Evan Cheng
8c2508f1ac
Added getReservedRegs().
...
llvm-svn: 34376
2007-02-17 11:06:00 +00:00
Jim Laskey
6f5d7d292f
Only gather frame info if debug or eh.
...
llvm-svn: 33639
2007-01-29 23:20:22 +00:00
Jim Laskey
eba0cf04e5
Landing pad-less eh for PPC.
...
llvm-svn: 33622
2007-01-29 18:51:14 +00:00
Jim Laskey
64f4242072
Change the MachineDebugInfo to MachineModuleInfo to better reflect usage
...
for debugging and exception handling.
llvm-svn: 33550
2007-01-26 21:22:28 +00:00
Jim Laskey
23ed7d2625
Make LABEL a builtin opcode.
...
llvm-svn: 33537
2007-01-26 14:34:52 +00:00
Jim Laskey
ba1dc7a8c7
Call frames for intel.
...
llvm-svn: 33490
2007-01-24 19:15:24 +00:00
Jim Laskey
ebaec45158
80 columns
...
llvm-svn: 33489
2007-01-24 18:50:57 +00:00
Evan Cheng
b6a4a7f72a
PEI is now responsible for adding MaxCallFrameSize to frame size and align the stack. Each target can further adjust the frame size if necessary.
...
llvm-svn: 33460
2007-01-23 09:38:11 +00:00
Evan Cheng
d9d93832b0
hasFP() is now a virtual method of MRegisterInfo.
...
llvm-svn: 33455
2007-01-23 00:57:47 +00:00
Evan Cheng
174826c1b9
One more try...
...
llvm-svn: 33400
2007-01-20 10:17:53 +00:00
Evan Cheng
672910d722
Last check-in was bogus. There is no need to align the stack if the function is a leaf function (and without alloca).
...
llvm-svn: 33399
2007-01-20 10:11:56 +00:00
Evan Cheng
5807fbc934
Backend is reponsible for aligning the stack.
...
llvm-svn: 33388
2007-01-20 02:08:16 +00:00
Anton Korobeynikov
548b9af9c2
* PIC codegen for X86/Linux has been implemented
...
* PIC-aware internal structures in X86 Codegen have been refactored
* Visibility (default/weak) has been added
* Docs fixes (external weak linkage, visibility, formatting)
llvm-svn: 33136
2007-01-12 19:20:47 +00:00
Anton Korobeynikov
2b39939053
Really big cleanup.
...
- New target type "mingw" was introduced
- Same things for both mingw & cygwin are marked as "cygming" (as in
gcc)
- .lcomm is supported here, so allow LLVM to use it
- Correctly use underscored versions of setjmp & _longjmp for both mingw
& cygwin
llvm-svn: 32833
2007-01-03 11:43:14 +00:00
Evan Cheng
bd6a333b52
Fix naming inconsistency.
...
llvm-svn: 32823
2007-01-02 21:33:40 +00:00
Evan Cheng
5effab79f3
f64 <-> i64 bit_convert using movq in 64-bit mode.
...
llvm-svn: 32587
2006-12-14 21:55:39 +00:00
Evan Cheng
9918e7780a
Added MOVSS2DIrr and MOVDI2SSrr to foldMemeoryOperand().
...
llvm-svn: 32583
2006-12-14 19:44:45 +00:00
Bill Wendling
f13d78d3b8
What should be the last unnecessary <iostream>s in the library.
...
llvm-svn: 32333
2006-12-07 22:21:48 +00:00
Evan Cheng
f4788fe306
MI keeps a ptr of TargetInstrDescriptor, use it.
...
llvm-svn: 32296
2006-12-07 01:21:59 +00:00
Evan Cheng
bf13611e84
Match TargetInstrInfo changes.
...
llvm-svn: 32098
2006-12-01 21:52:58 +00:00
Evan Cheng
98fa7ab4d7
Change MachineInstr ctor's to take a TargetInstrDescriptor reference instead
...
of opcode and number of operands.
llvm-svn: 31947
2006-11-27 23:37:22 +00:00
Jim Laskey
bc27bd0c6e
Hopefully a good crack at making debugging work on intel -disable-fp-elim.
...
llvm-svn: 31830
2006-11-17 21:19:15 +00:00
Evan Cheng
fc1b3d8bc8
Correct instructions for moving data between GR64 and SSE registers; also correct load i64 / store i64 from v2i64.
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llvm-svn: 31795
2006-11-16 23:33:25 +00:00
Evan Cheng
2a92afa25d
Properly transfer kill / dead info.
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llvm-svn: 31765
2006-11-15 20:58:11 +00:00
Evan Cheng
0e82270ff2
Matches MachineInstr changes.
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llvm-svn: 31712
2006-11-13 23:36:35 +00:00
Evan Cheng
de7ff3fa3d
Fix a potential bug.
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llvm-svn: 31634
2006-11-10 09:13:37 +00:00
Evan Cheng
013597778d
Add implicit def / use operands to MachineInstr.
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llvm-svn: 31633
2006-11-10 08:43:01 +00:00
Evan Cheng
6f0095807e
Use TargetInstrInfo::getNumOperands() instead of MachineInstr::getNumOperands(). In preparation for implicit reg def/use changes.
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llvm-svn: 31616
2006-11-10 01:28:43 +00:00
Evan Cheng
8743c67826
Remove M_2_ADDR_FLAG.
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llvm-svn: 31583
2006-11-09 02:22:54 +00:00
Evan Cheng
54c4be233e
Dead code.
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llvm-svn: 31405
2006-11-03 02:08:41 +00:00
Evan Cheng
02e193e2ff
Delete dead code; fix 80 col violations.
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llvm-svn: 30583
2006-09-22 21:43:59 +00:00
Anton Korobeynikov
7c2118575c
Added some eye-candy for Subtarget type checking
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Added X86 StdCall & FastCall calling conventions. Codegen will follow.
llvm-svn: 30446
2006-09-17 20:25:45 +00:00
Evan Cheng
59e25ca829
Fixed a FuseTwoAddrInst() bug: consider GlobalAddress and JumpTableIndex
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in addition to immediate operands.
llvm-svn: 30205
2006-09-08 21:08:13 +00:00
Evan Cheng
15dd42884e
Committing X86-64 support.
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llvm-svn: 30177
2006-09-08 06:48:29 +00:00
Chris Lattner
a96d4ad830
Some notes on better load folding we could do
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llvm-svn: 30155
2006-09-07 20:32:01 +00:00
Evan Cheng
24ce2a3b27
Fix a few dejagnu failures. e.g. fast-cc-merge-stack-adj.ll
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llvm-svn: 30113
2006-09-05 08:32:49 +00:00
Chris Lattner
9cd4e3429e
Completely eliminate def&use operands. Now a register operand is EITHER a
...
def operand or a use operand.
llvm-svn: 30109
2006-09-05 02:31:13 +00:00
Chris Lattner
59a4d8dfcd
Fix a long-standing wart in the code generator: two-address instruction lowering
...
actually *removes* one of the operands, instead of just assigning both operands
the same register. This make reasoning about instructions unnecessarily complex,
because you need to know if you are before or after register allocation to match
up operand #'s with the target description file.
Changing this also gets rid of a bunch of hacky code in various places.
This patch also includes changes to fold loads into cmp/test instructions in
the X86 backend, along with a significant simplification to the X86 spill
folding code.
llvm-svn: 30108
2006-09-05 02:12:02 +00:00
Chris Lattner
db290f7479
Constify some methods. Patch provided by Anton Vayvod, thanks!
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llvm-svn: 29756
2006-08-17 22:00:08 +00:00
Evan Cheng
a634c2b838
Missing a space.
...
llvm-svn: 29233
2006-07-20 22:52:28 +00:00
Jim Laskey
88d7595eb3
Tidy up a few things.
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llvm-svn: 29213
2006-07-19 19:32:06 +00:00
Jim Laskey
d31b3778d8
Reduce size of routine. Shrinks .o by 37%.
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llvm-svn: 29210
2006-07-19 17:53:32 +00:00
Evan Cheng
1d5fa40da3
Add shift and rotate by 1 instructions / patterns.
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llvm-svn: 28980
2006-06-29 00:36:51 +00:00
Evan Cheng
2a0f3b2e79
Cygwin support: use _alloca to allocate stack if > 4k. Patch by Anton Korobeynikov.
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llvm-svn: 28764
2006-06-13 05:14:44 +00:00
Evan Cheng
2da9d803a4
Added X86FunctionInfo subclass of MachineFunction to record whether the
...
function that is being lowered is forced to use FP. Currently this is only
true for main() / Cygwin.
llvm-svn: 28703
2006-06-06 23:30:24 +00:00
Evan Cheng
696779cea0
Cygwin support. Patch by Anton Korobeynikov!
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llvm-svn: 28672
2006-06-02 22:38:37 +00:00
Evan Cheng
889544823a
Rename instructions for consistency sake.
...
llvm-svn: 28594
2006-05-31 19:00:07 +00:00
Evan Cheng
667b133ab9
getCalleeSaveRegs and getCalleeSaveRegClasses are no long TableGen'd.
...
llvm-svn: 28378
2006-05-18 00:12:58 +00:00
Evan Cheng
dc9b5f5fc0
X86 integer register classes naming changes. Make them consistent with FP, vector classes.
...
llvm-svn: 28324
2006-05-16 07:21:53 +00:00
Chris Lattner
dbbbabb17b
More coverity fixes
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llvm-svn: 28266
2006-05-12 21:14:20 +00:00
Evan Cheng
0fb3fc3626
Fixing truncate. Previously we were emitting truncate from r16 to r8 as
...
movw. That is we promote the destination operand to r16. So
%CH = TRUNC_R16_R8 %BP
is emitted as
movw %bp, %cx.
This is incorrect. If %cl is live, it would be clobbered.
Ideally we want to do the opposite, that is emitted it as
movb ??, %ch
But this is not possible since %bp does not have a r8 sub-register.
We are now defining a new register class R16_ which is a subclass of R16
containing only those 16-bit registers that have r8 sub-registers (i.e.
AX - DX). We isel the truncate to two instructions, a MOV16to16_ to copy the
value to the R16_ class, followed by a TRUNC_R16_R8.
Due to bug 770, the register colaescer is not going to coalesce between R16 and
R16_. That will be fixed later so we can eliminate the MOV16to16_. Right now, it
can only be eliminated if we are lucky that source and destination registers are
the same.
llvm-svn: 28164
2006-05-08 08:01:26 +00:00
Evan Cheng
84612a59c2
Better implementation of truncate. ISel matches it to a pseudo instruction
...
that gets emitted as movl (for r32 to i16, i8) or a movw (for r16 to i8). And
if the destination gets allocated a subregister of the source operand, then
the instruction will not be emitted at all.
llvm-svn: 28119
2006-05-05 05:40:20 +00:00
Chris Lattner
075404adaa
Remove and simplify some more machineinstr/machineoperand stuff.
...
llvm-svn: 28105
2006-05-04 18:16:01 +00:00
Chris Lattner
685568510a
Move some methods out of MachineInstr into MachineOperand
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llvm-svn: 28102
2006-05-04 17:52:23 +00:00
Chris Lattner
97f1af2f14
There shalt be only one "immediate" operand type!
...
llvm-svn: 28099
2006-05-04 17:21:20 +00:00
Chris Lattner
c779fca289
Remove a bunch more SparcV9 specific stuff
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llvm-svn: 28093
2006-05-04 01:15:02 +00:00
Evan Cheng
37af498015
Use movaps instead of movapd for spill / restore.
...
llvm-svn: 28005
2006-04-28 02:23:35 +00:00
Evan Cheng
70237fcb5d
MakeMIInst() should handle jump table index operands.
...
llvm-svn: 27955
2006-04-24 05:37:35 +00:00
Evan Cheng
7364ee1c92
- PEXTRW cannot take a memory location as its first source operand.
...
- PINSRWrmi encoding bug.
llvm-svn: 27818
2006-04-18 21:59:43 +00:00
Evan Cheng
d6fa185be2
SHUFP{S|D}, PSHUF* encoding bugs. Left out the mask immediate operand.
...
llvm-svn: 27817
2006-04-18 21:56:36 +00:00
Evan Cheng
82d7cacbbc
Encoding bug: CMPPSrmi, CMPPDrmi dropped operand 2 (condtion immediate).
...
llvm-svn: 27815
2006-04-18 21:31:08 +00:00
Evan Cheng
5728f30f7c
Incorrect foldMemoryOperand entries
...
llvm-svn: 27763
2006-04-17 18:06:12 +00:00
Evan Cheng
b2e3339cb2
Can't fold loads into alias vector SSE ops used for scalar operation. The load
...
address has to be 16-byte aligned but the values aren't spilled to 128-bit
locations.
llvm-svn: 27732
2006-04-16 06:58:19 +00:00
Evan Cheng
300456c7f2
Added SSE (and other) entries to foldMemoryOperand().
...
llvm-svn: 27716
2006-04-14 23:33:27 +00:00
Evan Cheng
4831ed56e4
We were not adjusting the frame size to ensure proper alignment when alloca /
...
vla are present in the function. This causes a crash when a leaf function
allocates space on the stack used to store / load with 128-bit SSE
instructions.
llvm-svn: 27698
2006-04-14 07:26:43 +00:00
Evan Cheng
4f357911ad
Use movaps to do VR128 reg-to-reg copies for now. It's shorter and available for SSE1.
...
llvm-svn: 27554
2006-04-10 07:21:31 +00:00
Jim Laskey
b93bc75add
Foundation for call frame information.
...
llvm-svn: 27491
2006-04-07 16:34:46 +00:00
Evan Cheng
22dd2900e6
Minor fixes + naming changes.
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llvm-svn: 27410
2006-04-04 19:12:30 +00:00
Jim Laskey
eb38a3e83a
Expose base register for DwarfWriter. Refactor code accordingly.
...
llvm-svn: 27225
2006-03-28 13:48:33 +00:00
Jim Laskey
8688957c53
Translate llvm target registers to dwarf register numbers properly.
...
llvm-svn: 27180
2006-03-27 20:18:45 +00:00
Jim Laskey
cec9c18c62
Add support to locate local variables in frames (early version.)
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llvm-svn: 26994
2006-03-23 18:12:57 +00:00
Evan Cheng
8dd794ea70
Use the generic vector register classes VR64 / VR128 rather than V4F32,
...
V8I16, etc.
llvm-svn: 26838
2006-03-18 01:23:20 +00:00
Evan Cheng
1f5cb60f28
Also fold MOV8r0, MOV16r0, MOV32r0 + store to MOV8mi, MOV16mi, and MOV32mi.
...
llvm-svn: 26817
2006-03-17 02:36:22 +00:00
Evan Cheng
fc79bdafbe
Add some missing entries to X86RegisterInfo::foldMemoryOperand(). e.g.
...
ADD32ri8.
llvm-svn: 26816
2006-03-17 02:25:01 +00:00
Evan Cheng
07ffd089da
Fix an obvious bug exposed when we are doing
...
ADD X, 4
==>
MOV32ri $X+4, ...
llvm-svn: 26366
2006-02-25 01:37:02 +00:00
Evan Cheng
1b23fdda1a
Added SSE2 128-bit integer packed types: V16I8, V8I16, V4I32, and V2I64.
...
Added generic vector types: VR64 and VR128.
llvm-svn: 26295
2006-02-21 01:38:21 +00:00
Evan Cheng
6a9422ce1c
Added x86 integer vector types: 64-bit packed byte integer (v16i8), 64-bit
...
packed word integer (v8i16), and 64-bit packed doubleword integer (v2i32).
llvm-svn: 26294
2006-02-20 22:34:53 +00:00
Evan Cheng
bf4008c701
1. Use pxor instead of xoraps / xorapd to clear FR32 / FR64 registers. This
...
proves to be worth 20% on Ptrdist/ks. Might be related to dependency
breaking support.
2. Added FsMOVAPSrr and FsMOVAPDrr as aliases to MOVAPSrr and MOVAPDrr. These
are used for FR32 / FR64 reg-to-reg copies.
3. Tell reg-allocator to generate MOVSSrm / MOVSDrm and MOVSSmr / MOVSDmr to
spill / restore FsMOVAPSrr and FsMOVAPDrr.
llvm-svn: 26241
2006-02-16 22:45:17 +00:00
Evan Cheng
447c171afd
Use movaps / movapd to spill / restore V4F4 / V2F8 registers.
...
llvm-svn: 26240
2006-02-16 21:20:26 +00:00
Evan Cheng
74228303ad
Use movaps / movapd (instead of movss / movsd) to do FR32 / FR64 reg to reg
...
transfer.
According to the Intel P4 Optimization Manual:
Moves that write a portion of a register can introduce unwanted
dependences. The movsd reg, reg instruction writes only the bottom
64 bits of a register, not to all 128 bits. This introduces a dependence on
the preceding instruction that produces the upper 64 bits (even if those
bits are not longer wanted). The dependence inhibits register renaming,
and thereby reduces parallelism.
Not to mention movaps is shorter than movss.
llvm-svn: 26226
2006-02-16 01:50:02 +00:00
Chris Lattner
70ef21db04
When rewriting frame instructions, emit the appropriate small-immediate
...
instruction when possible.
llvm-svn: 25938
2006-02-03 18:20:04 +00:00
Chris Lattner
15cb732cd7
Move isLoadFrom/StoreToStackSlot from MRegisterInfo to TargetInstrInfo,a far more logical place. Other methods should also be moved if anyoneis interested. :)
...
llvm-svn: 25913
2006-02-02 20:12:32 +00:00
Chris Lattner
10f9a9daa5
implement isStoreToStackSlot
...
llvm-svn: 25911
2006-02-02 20:00:41 +00:00
Evan Cheng
adc4966129
Added SSE entries to foldMemoryOperand().
...
llvm-svn: 25888
2006-02-01 23:02:25 +00:00