d1dfdab973
BT memory operands load from their address operand.
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llvm-svn: 61424
2008-12-25 01:27:10 +00:00
8175f27d3f
translateX86CC can never fail. Simplify it based on this.
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llvm-svn: 61423
2008-12-24 23:53:05 +00:00
d6bd7e9372
Darwin likes for the EH frame to be non-local.
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llvm-svn: 61420
2008-12-24 08:05:17 +00:00
066b5f6724
GCC doesn't emit DW_EH_PE_sdata4 for the FDE encoding on Darwin. I'm not sure
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about other platforms.
llvm-svn: 61415
2008-12-24 05:25:49 +00:00
198b8e78c3
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
4b46b74ece
indentation
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llvm-svn: 61407
2008-12-24 00:11:37 +00:00
e9988b661d
simplify some control flow and reduce indentation, no functionality change.
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llvm-svn: 61404
2008-12-23 23:42:27 +00:00
25a767d7f4
Add instruction patterns and encodings for the x86 bt instructions.
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llvm-svn: 61400
2008-12-23 22:45:23 +00:00
3d188347a4
Silence unused variable warnings.
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llvm-svn: 61392
2008-12-23 21:56:28 +00:00
12f2490489
Clean up the atomic opcodes in SelectionDAG.
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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.
llvm-svn: 61389
2008-12-23 21:37:04 +00:00
ec95070ca3
Fixed code generation for v8i16 and v16i8 splats on X86.
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Fixed lowering of v8i16 shuffles for v8i16 when we fall back to extract/insert.
llvm-svn: 61365
2008-12-23 04:03:27 +00:00
d72358cba8
Make the fuse-failed debug output human-readable.
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llvm-svn: 61356
2008-12-23 00:19:20 +00:00
ab316350bf
Fix fast-isel to not emit invalid assembly when presented with a
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constant shift count that doesn't fit in the shift instruction's
immediate field. This fixes PR3242.
llvm-svn: 61281
2008-12-20 17:19:40 +00:00
b289d4163b
Move the patterns which have i8 immediates before the patterns
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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.
llvm-svn: 61250
2008-12-19 18:25:21 +00:00
9c148c8fc2
Fix some release-assert warnings
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llvm-svn: 61244
2008-12-19 17:03:38 +00:00
770b4b830a
Fix bug 3202.
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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.
llvm-svn: 61242
2008-12-19 10:55:56 +00:00
69cd963b9a
When emitting instructions that define EFLAGS and the EFLAGS value isn't
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used, mark the defs as dead.
llvm-svn: 61215
2008-12-18 22:03:42 +00:00
975f78ae79
When setting up the frame pointer, add it as a live-in register to all
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non-entry blocks, so that it doesn't appear use-before-def anywhere.
llvm-svn: 61214
2008-12-18 22:01:52 +00:00
998fd29ce1
Fixed x86 code generation of multiple for v2i64. It was incorrect for SSE4.1.
...
llvm-svn: 61211
2008-12-18 21:42:19 +00:00
49c44fa014
Mark the x86 fp stack registers as "reserved". This tells LiveVariables
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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
b9a012156b
Add initial support for back-scheduling address computations,
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especially in the case of addresses computed from loop induction
variables.
llvm-svn: 61075
2008-12-16 03:35:01 +00:00
c4499feb1a
- 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!
llvm-svn: 60963
2008-12-12 21:15:41 +00:00
9c2d26d208
Added support for SELECT v8i8 v4i16 for X86 (MMX)
...
Added support for TRUNC v8i16 to v8i8 for X86 (MMX)
llvm-svn: 60916
2008-12-12 01:25:51 +00:00
1a317678bc
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.
llvm-svn: 60915
2008-12-12 00:56:36 +00:00
01fa50ca4f
Some code clean up.
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llvm-svn: 60850
2008-12-10 21:49:05 +00:00
517d05fd00
Only perform SETO/SETC to JO/JC conversion if extractvalue is coming from an arithmetic with overflow instruction.
...
llvm-svn: 60844
2008-12-10 19:44:24 +00:00
0b77319742
Fix MachineCodeEmitter to use uintptr_t instead of intptr_t. This avoids some overflow issues. Patch by Thomas Jablin.
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llvm-svn: 60828
2008-12-10 02:32:19 +00:00
f482f379ef
Whitespace changes.
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llvm-svn: 60826
2008-12-10 02:01:32 +00:00
8008cb9a77
Implement fast-isel conversion of a branch instruction that's branching on an
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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.
llvm-svn: 60807
2008-12-09 23:19:12 +00:00
db8ec2d75a
Add sub/mul overflow intrinsics. This currently doesn't have a
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target-independent way of determining overflow on multiplication. It's very
tricky. Patch by Zoltan Varga!
llvm-svn: 60800
2008-12-09 22:08:41 +00:00
e25d3417f5
Correct my English.
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llvm-svn: 60753
2008-12-09 07:55:31 +00:00
80b34b3f47
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.
llvm-svn: 60737
2008-12-09 02:42:50 +00:00
bc55c2a18f
Fix a couple of mistaken switch case fall-throughs. Thanks to Bill
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for spotting these!
llvm-svn: 60728
2008-12-08 23:50:06 +00:00
c654143258
Re-apply 60689 now my head is screwed on right.
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llvm-svn: 60711
2008-12-08 19:29:03 +00:00
64bc11e7ce
Revert 60689. It caused many regressions on Darwin targets.
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llvm-svn: 60705
2008-12-08 17:38:02 +00:00
4c31524bec
Factor out the code for sign-extending/truncating gep indices
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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.
llvm-svn: 60696
2008-12-08 07:57:47 +00:00
50fcc67a8b
Perform cheap checks first.
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llvm-svn: 60689
2008-12-08 06:52:43 +00:00
f9e2394009
Fix typo, psuedo -> pseudo.
...
llvm-svn: 60651
2008-12-07 03:49:52 +00:00
527dd60430
add a note
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llvm-svn: 60632
2008-12-06 22:49:05 +00:00
b49d7cf19e
Forgot a file.
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llvm-svn: 60609
2008-12-05 21:55:35 +00:00
9efd2ce55b
Make LoopStrengthReduce smarter about hoisting things out of
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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.)
llvm-svn: 60608
2008-12-05 21:47:27 +00:00
43c0891838
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.
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llvm-svn: 60596
2008-12-05 17:41:31 +00:00
fd8c4d5975
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).
llvm-svn: 60595
2008-12-05 17:23:48 +00:00
2a03c7e977
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.
...
llvm-svn: 60571
2008-12-05 01:06:39 +00:00
6949f6135b
Temporarily revert r60519. It was causing a bootstrap failure:
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/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....
llvm-svn: 60527
2008-12-04 04:07:00 +00:00
011c4fa8a1
Visibility hidden GVs do not require extra load of symbol address from the GOT or non-lazy-ptr.
...
llvm-svn: 60519
2008-12-04 01:56:50 +00:00
1339e72d97
Use mmx (punpckldq VR64, (mmx_v_set0)) to clear high 32-bits of a VR64 register.
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llvm-svn: 60499
2008-12-03 19:38:05 +00:00
3f86b51333
Split foldMemoryOperand into public non-virtual and protected virtual
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parts, and add target-independent code to add/preserve
MachineMemOperands.
llvm-svn: 60488
2008-12-03 18:43:12 +00:00
69cc2cbbff
Rename isSimpleLoad to canFoldAsLoad, to better reflect its meaning.
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llvm-svn: 60487
2008-12-03 18:15:48 +00:00
78407ac8e5
Extend X86's addFrameReference to add a MachineMemOperand for
...
the frame reference. This will help post-RA scheduling determine
that spills to distinct stack slots are independent.
llvm-svn: 60486
2008-12-03 18:11:40 +00:00
Chris Lattner