Commit Graph

3924 Commits

Author SHA1 Message Date
Chris Lattner
e55484eb45 Add a simple pattern for matching 'bt'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61426 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-25 05:34:37 +00:00
Chris Lattner
f1e9fd5676 Fix some JIT encodings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61425 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-25 01:32:49 +00:00
Chris Lattner
d1e3229e4b BT memory operands load from their address operand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61424 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-25 01:27:10 +00:00
Chris Lattner
1c39d4cfaa translateX86CC can never fail. Simplify it based on this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61423 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-24 23:53:05 +00:00
Bill Wendling
722f5f1cfb Darwin likes for the EH frame to be non-local.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61420 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-24 08:05:17 +00:00
Bill Wendling
d4121bef3c GCC doesn't emit DW_EH_PE_sdata4 for the FDE encoding on Darwin. I'm not sure
about other platforms.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61415 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-24 05:25:49 +00:00
Dan Gohman
82779704ff 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61408 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-24 00:27:51 +00:00
Chris Lattner
4328708bad indentation
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61407 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-24 00:11:37 +00:00
Chris Lattner
4c78e0286a simplify some control flow and reduce indentation, no functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61404 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-23 23:42:27 +00:00
Dan Gohman
c7a37d4ff2 Add instruction patterns and encodings for the x86 bt instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61400 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-23 22:45:23 +00:00
Devang Patel
fd1c6c3123 Silence unused variable warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61392 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-23 21:56:28 +00:00
Dan Gohman
0b1d4a798d Clean up the atomic opcodes in SelectionDAG.
This removes all the _8, _16, _32, and _64 opcodes and replaces each
group with an unsuffixed opcode. The MemoryVT field of the AtomicSDNode
is now used to carry the size information. In tablegen, the size-specific
opcodes are replaced by size-independent opcodes that utilize the
ability to compose them with predicates.

This shrinks the per-opcode tables and makes the code that handles
atomics much more concise.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61389 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-23 21:37:04 +00:00
Mon P Wang
62c75ea397 Fixed code generation for v8i16 and v16i8 splats on X86.
Fixed lowering of v8i16 shuffles for v8i16 when we fall back to extract/insert.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61365 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-23 04:03:27 +00:00
Dan Gohman
15a3a49e19 Make the fuse-failed debug output human-readable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61356 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-23 00:19:20 +00:00
Dan Gohman
b12b1a27f5 Fix fast-isel to not emit invalid assembly when presented with a
constant shift count that doesn't fit in the shift instruction's
immediate field. This fixes PR3242.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61281 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-20 17:19:40 +00:00
Dan Gohman
018a34c576 Move the patterns which have i8 immediates before the patterns
that have i32 immediates so that they get selected first. This
currently only matters in the JIT, as assemblers will
automatically use the smallest encoding.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61250 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-19 18:25:21 +00:00
Chris Lattner
a33649e98c Fix some release-assert warnings
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61244 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-19 17:03:38 +00:00
Rafael Espindola
2f6fea90a5 Fix bug 3202.
The EH_frame and .eh symbols are now private, except for darwin9 and earlier.
The patch also fixes the definition of PrivateGlobalPrefix on pcc linux.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61242 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-19 10:55:56 +00:00
Dan Gohman
bfd23c9961 When emitting instructions that define EFLAGS and the EFLAGS value isn't
used, mark the defs as dead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61215 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18 22:03:42 +00:00
Dan Gohman
34d6ad73e1 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61214 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18 22:01:52 +00:00
Mon P Wang
af9b952627 Fixed x86 code generation of multiple for v2i64. It was incorrect for SSE4.1.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61211 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18 21:42:19 +00:00
Dan Gohman
a32b7ac86f 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61179 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18 01:05:09 +00:00
Dan Gohman
8749b61178 Add initial support for back-scheduling address computations,
especially in the case of addresses computed from loop induction
variables.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61075 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16 03:35:01 +00:00
Bill Wendling
d350e02e19 - Use patterns instead of creating completely new instruction matching patterns,
which are identical to the original patterns.

- Change the multiply with overflow so that we distinguish between signed and
  unsigned multiplication. Currently, unsigned multiplication with overflow
  isn't working!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60963 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-12 21:15:41 +00:00
Mon P Wang
9e5ecb8f8f Added support for SELECT v8i8 v4i16 for X86 (MMX)
Added support for TRUNC v8i16 to v8i8 for X86 (MMX)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60916 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-12 01:25:51 +00:00
Bill Wendling
ab55ebda1c Redo the arithmetic with overflow architecture. I was changing the semantics of
ISD::ADD to emit an implicit EFLAGS. This was horribly broken. Instead, replace
the intrinsic with an ISD::SADDO node. Then custom lower that into an
X86ISD::ADD node with a associated SETCC that checks the correct condition code
(overflow or carry). Then that gets lowered into the correct X86::ADDOvf
instruction.

Similar for SUB and MUL instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60915 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-12 00:56:36 +00:00
Evan Cheng
6bb14ca775 Some code clean up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60850 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-10 21:49:05 +00:00
Bill Wendling
9a90132af4 Only perform SETO/SETC to JO/JC conversion if extractvalue is coming from an arithmetic with overflow instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60844 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-10 19:44:24 +00:00
Evan Cheng
5788d1a169 Fix MachineCodeEmitter to use uintptr_t instead of intptr_t. This avoids some overflow issues. Patch by Thomas Jablin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60828 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-10 02:32:19 +00:00
Bill Wendling
bc5e15eafb Whitespace changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60826 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-10 02:01:32 +00:00
Bill Wendling
30a64a7649 Implement fast-isel conversion of a branch instruction that's branching on an
overflow/carry from the "arithmetic with overflow" intrinsics. It searches the
machine basic block from bottom to top to find the SETO/SETC instruction that is
its conditional. If an instruction modifies EFLAGS before it reaches the
SETO/SETC instruction, then it defaults to the normal instruction emission.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60807 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-09 23:19:12 +00:00
Bill Wendling
74c3765291 Add sub/mul overflow intrinsics. This currently doesn't have a
target-independent way of determining overflow on multiplication. It's very
tricky. Patch by Zoltan Varga!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60800 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-09 22:08:41 +00:00
Bill Wendling
c065b3f5ec Correct my English.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60753 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-09 07:55:31 +00:00
Bill Wendling
52370a1089 Add initial support for fast-isel of the [SU]ADDO intrinsics. It isn't
complete. For instance, it lowers the common case into this less-than-optimal
code:

        addl    %ecx, %eax
        seto    %cl
        testb   %cl, %cl
        jne     LBB1_2  ## overflow

instead of:

        addl    %ecx, %eax
        jo      LBB1_2  ## overflow

That will come in a future commit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60737 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-09 02:42:50 +00:00
Dan Gohman
55fdaec36a Fix a couple of mistaken switch case fall-throughs. Thanks to Bill
for spotting these!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60728 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-08 23:50:06 +00:00
Evan Cheng
e4d1082b2c Re-apply 60689 now my head is screwed on right.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60711 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-08 19:29:03 +00:00
Dan Gohman
2d4e9bc922 Revert 60689. It caused many regressions on Darwin targets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60705 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-08 17:38:02 +00:00
Dan Gohman
c8a1a3c426 Factor out the code for sign-extending/truncating gep indices
and use it in x86 address mode folding. Also, make
getRegForValue return 0 for illegal types even if it has a
ValueMap for them, because Argument values are put in the
ValueMap. This fixes PR3181.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60696 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-08 07:57:47 +00:00
Evan Cheng
dda346aa71 Perform cheap checks first.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60689 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-08 06:52:43 +00:00
Nick Lewycky
6ecf5ce3e3 Fix typo, psuedo -> pseudo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60651 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-07 03:49:52 +00:00
Chris Lattner
f96ca79cf3 add a note
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60632 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-06 22:49:05 +00:00
Dale Johannesen
368eb2b22d Forgot a file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60609 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-05 21:55:35 +00:00
Dale Johannesen
203af58aea Make LoopStrengthReduce smarter about hoisting things out of
loops when they can be subsumed into addressing modes.

Change X86 addressing mode check to realize that
some PIC references need an extra register.
(I believe this is correct for Linux, if not, I'm sure
someone will tell me.)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60608 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-05 21:47:27 +00:00
Evan Cheng
650d7f3ff4 Reason #3 from 60595 doesn't hold true. If we can fold a PIC load from constpool into a use, the rewrite happens at time of spill (not in VirtRegMap). Later on, if the GlobalBaseReg is spilled, the spiller can see the use uses GlobalBaseReg and do the right thing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60596 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-05 17:41:31 +00:00
Evan Cheng
84100ba83d Effectively undo 60461 in PIC mode which simply transform V_SET0 / V_SETALLONES into a load from constpool in order to fold into restores. This is not safe to do when PIC base is being used for a number of reasons:
1. GlobalBaseReg may have been spilled.
2. It may not be live at the use.
3. Spiller doesn't know this is happening so it won't prevent GlobalBaseReg from being spilled later (That by itself is a nasty hack. It's needed because we don't insert the reload until later).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60595 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-05 17:23:48 +00:00
Evan Cheng
ae94e59416 Re-did 60519. It turns out Darwin's handling of hidden visibility symbols are a bit more complicate than I expected. Both declarations and weak definitions still need a stub indirection. However, the stubs are in data section and they contain the addresses of the actual symbols.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60571 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-05 01:06:39 +00:00
Bill Wendling
a8103dad4e Temporarily revert r60519. It was causing a bootstrap failure:
/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-darwin9.5.0/bin/ -B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/lib/ -isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/include -isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/sys-include -DHAVE_CONFIG_H -I. -I../../../llvm-gcc.src/libgomp -I. -I../../../llvm-gcc.src/libgomp/config/posix -I../../../llvm-gcc.src/libgomp -Wall -pthread -Werror -O2 -g -O2 -MT barrier.lo -MD -MP -MF .deps/barrier.Tpo -c ../../../llvm-gcc.src/libgomp/barrier.c  -fno-common -DPIC -o .libs/barrier.o
checking for sys/file.h... /var/folders/zG/zGE-ZJOGFiGjv0B5cs5oYE+++TM/-Tmp-//cc34Jg5P.s:13:non-relocatable subtraction expression, "_gomp_tls_key" minus "L1$pb"
/var/folders/zG/zGE-ZJOGFiGjv0B5cs5oYE+++TM/-Tmp-//cc34Jg5P.s:13:symbol: "_gomp_tls_key" can't be undefined in a subtraction expression
make[4]: *** [barrier.lo] Error 1
make[4]: *** Waiting for unfinished jobs....
/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-darwin9.5.0/bin/ -B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/lib/ -isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/include -isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/sys-include -DHAVE_CONFIG_H -I. -I../../../llvm-gcc.src/libgomp -I. -I../../../llvm-gcc.src/libgomp/config/posix -I../../../llvm-gcc.src/libgomp -Wall -pthread -Werror -O2 -g -O2 -MT alloc.lo -MD -MP -MF .deps/alloc.Tpo -c ../../../llvm-gcc.src/libgomp/alloc.c -o alloc.o >/dev/null 2>&1
yes
checking for sys/param.h... make[3]: *** [all-recursive] Error 1
make[2]: *** [all] Error 2
make[1]: *** [all-target-libgomp] Error 2
make[1]: *** Waiting for unfinished jobs....



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60527 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-04 04:07:00 +00:00
Evan Cheng
eb83dfde66 Visibility hidden GVs do not require extra load of symbol address from the GOT or non-lazy-ptr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60519 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-04 01:56:50 +00:00
Evan Cheng
62fb4f2e1c Use mmx (punpckldq VR64, (mmx_v_set0)) to clear high 32-bits of a VR64 register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60499 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-03 19:38:05 +00:00
Dan Gohman
c54baa2d43 Split foldMemoryOperand into public non-virtual and protected virtual
parts, and add target-independent code to add/preserve
MachineMemOperands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60488 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-03 18:43:12 +00:00