dd6601048e
optimize bitcasts from large integers to vector into vector
...
element insertion from the pieces that feed into the vector.
This handles a pattern that occurs frequently due to code
generated for the x86-64 abi. We now compile something like
this:
struct S { float A, B, C, D; };
struct S g;
struct S bar() {
struct S A = g;
++A.A;
++A.C;
return A;
}
into all nice vector operations:
_bar: ## @bar
## BB#0: ## %entry
movq _g@GOTPCREL(%rip), %rax
movss LCPI1_0(%rip), %xmm1
movss (%rax), %xmm0
addss %xmm1, %xmm0
pshufd $16, %xmm0, %xmm0
movss 4(%rax), %xmm2
movss 12(%rax), %xmm3
pshufd $16, %xmm2, %xmm2
unpcklps %xmm2, %xmm0
addss 8(%rax), %xmm1
pshufd $16, %xmm1, %xmm1
pshufd $16, %xmm3, %xmm2
unpcklps %xmm2, %xmm1
ret
instead of icky integer operations:
_bar: ## @bar
movq _g@GOTPCREL(%rip), %rax
movss LCPI1_0(%rip), %xmm1
movss (%rax), %xmm0
addss %xmm1, %xmm0
movd %xmm0, %ecx
movl 4(%rax), %edx
movl 12(%rax), %esi
shlq $32, %rdx
addq %rcx, %rdx
movd %rdx, %xmm0
addss 8(%rax), %xmm1
movd %xmm1, %eax
shlq $32, %rsi
addq %rax, %rsi
movd %rsi, %xmm1
ret
This resolves rdar://8360454
llvm-svn: 112343
2010-08-28 01:20:38 +00:00
e06905d1f0
Completely disable tail calls when fast-isel is enabled, as fast-isel
...
doesn't currently support dealing with this.
llvm-svn: 112341
2010-08-28 00:51:03 +00:00
1e06dbf881
Trim a #include.
...
llvm-svn: 112340
2010-08-28 00:49:13 +00:00
fe22f1d3cc
Fix an index calculation thinko.
...
llvm-svn: 112337
2010-08-28 00:39:27 +00:00
8ee9394750
We don't need to custom-select VLDMQ and VSTMQ anymore.
...
llvm-svn: 112336
2010-08-28 00:20:11 +00:00
83f9ff0452
Update CMake build. Add newline at end of file.
...
llvm-svn: 112332
2010-08-28 00:11:12 +00:00
ca5af12920
When merging Thumb2 loads/stores, do not give up when the offset is one of
...
the special values that for ARM would be used with IB or DA modes. Fall
through and consider materializing a new base address is it would be
profitable.
llvm-svn: 112329
2010-08-27 23:57:52 +00:00
cf7f941121
Add a prototype of a new peephole optimizing pass that uses LazyValue info to simplify PHIs and select's.
...
This pass addresses the missed optimizations from PR2581 and PR4420.
llvm-svn: 112325
2010-08-27 23:31:36 +00:00
38f6b7fe3b
Improve the precision of getConstant().
...
llvm-svn: 112323
2010-08-27 23:29:38 +00:00
13ce07fa92
Change ARM VFP VLDM/VSTM instructions to use addressing mode #4 , just like
...
all the other LDM/STM instructions. This fixes asm printer crashes when
compiling with -O0. I've changed one of the NEON tests (vst3.ll) to run
with -O0 to check this in the future.
Prior to this change VLDM/VSTM used addressing mode #5 , but not really.
The offset field was used to hold a count of the number of registers being
loaded or stored, and the AM5 opcode field was expanded to specify the IA
or DB mode, instead of the standard ADD/SUB specifier. Much of the backend
was not aware of these special cases. The crashes occured when rewriting
a frameindex caused the AM5 offset field to be changed so that it did not
have a valid submode. I don't know exactly what changed to expose this now.
Maybe we've never done much with -O0 and NEON. Regardless, there's no longer
any reason to keep a count of the VLDM/VSTM registers, so we can use
addressing mode #4 and clean things up in a lot of places.
llvm-svn: 112322
2010-08-27 23:18:17 +00:00
6c1395f62a
Enhance the shift propagator to handle the case when you have:
...
A = shl x, 42
...
B = lshr ..., 38
which can be transformed into:
A = shl x, 4
...
iff we can prove that the would-be-shifted-in bits
are already zero. This eliminates two shifts in the testcase
and allows eliminate of the whole i128 chain in the real example.
llvm-svn: 112314
2010-08-27 22:53:44 +00:00
f2855b147f
Simplify.
...
llvm-svn: 112305
2010-08-27 22:25:51 +00:00
18d7fc8fc6
Implement a pretty general logical shift propagation
...
framework, which is good at ripping through bitfield
operations. This generalize a bunch of the existing
xforms that instcombine does, such as
(x << c) >> c -> and
to handle intermediate logical nodes. This is useful for
ripping up the "promote to large integer" code produced by
SRoA.
llvm-svn: 112304
2010-08-27 22:24:38 +00:00
af371b49a8
Unsigned value cannot be < 0.
...
llvm-svn: 112300
2010-08-27 21:44:35 +00:00
15871f23e3
When merging adjacent operands, scan ahead and merge all equal
...
adjacent operands at once, instead of just two at a time.
llvm-svn: 112299
2010-08-27 21:39:59 +00:00
25a198e72b
remove some special shift cases that have been subsumed into the
...
more general simplify demanded bits logic.
llvm-svn: 112291
2010-08-27 21:04:34 +00:00
c866bf4fec
Make the {A,+,B}<L> + {C,+,D}<L> --> Other + {A+C,+,B+D}<L>
...
transformation collect all the addrecs with the same loop
add combine them at once rather than starting everything over
at the first chance.
llvm-svn: 112290
2010-08-27 20:45:56 +00:00
6628431a91
Remove now unneeded command line flag that enables 'optimize compares.'
...
llvm-svn: 112287
2010-08-27 20:39:09 +00:00
99d4cb861b
Fix typos in comments.
...
llvm-svn: 112286
2010-08-27 20:32:56 +00:00
7398434675
teach the truncation optimization that an entire chain of
...
computation can be truncated if it is fed by a sext/zext that doesn't
have to be exactly equal to the truncation result type.
llvm-svn: 112285
2010-08-27 20:32:06 +00:00
9bad2fb378
Switch ScalarEvolution's main Value*->SCEV* map from std::map
...
to DenseMap.
llvm-svn: 112281
2010-08-27 18:55:03 +00:00
90cd746e63
Add an instcombine to clean up a common pattern produced
...
by the SRoA "promote to large integer" code, eliminating
some type conversions like this:
%94 = zext i16 %93 to i32 ; <i32> [#uses=2]
%96 = lshr i32 %94, 8 ; <i32> [#uses=1]
%101 = trunc i32 %96 to i8 ; <i8> [#uses=1]
This also unblocks other xforms from happening, now clang is able to compile:
struct S { float A, B, C, D; };
float foo(struct S A) { return A.A + A.B+A.C+A.D; }
into:
_foo: ## @foo
## BB#0: ## %entry
pshufd $1, %xmm0, %xmm2
addss %xmm0, %xmm2
movdqa %xmm1, %xmm3
addss %xmm2, %xmm3
pshufd $1, %xmm1, %xmm0
addss %xmm3, %xmm0
ret
on x86-64, instead of:
_foo: ## @foo
## BB#0: ## %entry
movd %xmm0, %rax
shrq $32, %rax
movd %eax, %xmm2
addss %xmm0, %xmm2
movapd %xmm1, %xmm3
addss %xmm2, %xmm3
movd %xmm1, %rax
shrq $32, %rax
movd %eax, %xmm0
addss %xmm3, %xmm0
ret
This seems pretty close to optimal to me, at least without
using horizontal adds. This also triggers in lots of other
code, including SPEC.
llvm-svn: 112278
2010-08-27 18:31:05 +00:00
edf722add3
Add alignment arguments to all the NEON load/store intrinsics.
...
Update all the tests using those intrinsics and add support for
auto-upgrading bitcode files with the old versions of the intrinsics.
llvm-svn: 112271
2010-08-27 17:13:24 +00:00
6ebbd92380
Use LVI to eliminate conditional branches where we've tested a related condition previously. Update tests for this change.
...
This fixes PR5652.
llvm-svn: 112270
2010-08-27 17:12:29 +00:00
2706567c5c
Optimize SCEVComplexityCompare. Use a 3-way return instead of a 2-way
...
return to avoid needing two calls to test for equivalence, and sort
addrecs by their degree before examining their operands.
llvm-svn: 112267
2010-08-27 15:26:01 +00:00
c0b36921c2
Properly handle passing of FP stuff to varargs function on Win64:
...
value should be copied to the corresponding shadow reg as well.
Patch by Cameron Esfahani!
llvm-svn: 112262
2010-08-27 14:43:06 +00:00
1f6012479f
MCELF: Port EmitInstruction changes from MachO streamer. Patch by Roman Divacky.
...
llvm-svn: 112260
2010-08-27 10:40:51 +00:00
05e22982c8
MCELF: Always overwrite FixedValue.
...
llvm-svn: 112259
2010-08-27 10:38:39 +00:00
1844a71e66
X86: Fix an encoding issue with LOCK_ADD64mr, which could lead to very hard to find miscompiles with the integrated assembler.
...
llvm-svn: 112250
2010-08-27 01:30:14 +00:00
b12ff5999e
Revert r112213. It is not needed.
...
llvm-svn: 112242
2010-08-26 23:35:15 +00:00
6a77066913
Simplify eliminateFrameIndex() interface back down now that PEI doesn't need
...
to try to re-use scavenged frame index reference registers. rdar://8277890
llvm-svn: 112241
2010-08-26 23:32:16 +00:00
ea134f56b1
If node is not available then use FuncInfo.ValueMap to emit debug info for byval parameter.
...
llvm-svn: 112238
2010-08-26 22:53:27 +00:00
2a1915d04b
Remove the now obsolete frame index virtual re-use algorithm from PEI. Pre-RA
...
virtual base registers handle this function, and more. A bit more cleanup
to do on the interface to eliminateFrameIndex() after this.
llvm-svn: 112237
2010-08-26 22:42:12 +00:00
bfd2228182
optimize "integer extraction out of the middle of a vector" as produced
...
by SRoA. This is part of rdar://7892780, but needs another xform to
expose this.
llvm-svn: 112232
2010-08-26 22:14:59 +00:00
e82d5b4aaf
tidy up a bit. no functional change.
...
llvm-svn: 112228
2010-08-26 21:56:30 +00:00
d4ebd6df5a
optimize bitcast(trunc(bitcast(x))) where the result is a float and 'x'
...
is a vector to be a vector element extraction. This allows clang to
compile:
struct S { float A, B, C, D; };
float foo(struct S A) { return A.A + A.B+A.C+A.D; }
into:
_foo: ## @foo
## BB#0: ## %entry
movd %xmm0, %rax
shrq $32, %rax
movd %eax, %xmm2
addss %xmm0, %xmm2
movapd %xmm1, %xmm3
addss %xmm2, %xmm3
movd %xmm1, %rax
shrq $32, %rax
movd %eax, %xmm0
addss %xmm3, %xmm0
ret
instead of:
_foo: ## @foo
## BB#0: ## %entry
movd %xmm0, %rax
movd %eax, %xmm0
shrq $32, %rax
movd %eax, %xmm2
addss %xmm0, %xmm2
movd %xmm1, %rax
movd %eax, %xmm1
addss %xmm2, %xmm1
shrq $32, %rax
movd %eax, %xmm0
addss %xmm1, %xmm0
ret
... eliminating half of the horribleness.
llvm-svn: 112227
2010-08-26 21:55:42 +00:00
17da935964
Turn off the scavenging based frame reg reuse briefly to measure whether it's
...
still having a significant effect. It shouldn't be now that the pre-RA
virtual base reg stuff is in. Assuming that's valididated by the nightly
testers, we can simplify a lot of the PEI frame index code.
llvm-svn: 112220
2010-08-26 21:29:54 +00:00
e25ba0c7c2
zap the now unused MVT::getIntVectorWithNumElements
...
llvm-svn: 112218
2010-08-26 20:53:12 +00:00
42b4ac7ed3
Speculatively revert r112207.
...
llvm-svn: 112216
2010-08-26 20:33:42 +00:00
977057f481
80 col.
...
llvm-svn: 112215
2010-08-26 20:32:32 +00:00
384fa91deb
Update DanglingDebugInfo so that it can be used to track llvm.dbg.declare also.
...
llvm-svn: 112213
2010-08-26 20:06:46 +00:00
97919e9c59
Use pseudo instructions for VST3.
...
llvm-svn: 112208
2010-08-26 18:51:29 +00:00
ab596a637c
Donot forget to resolve dangling debug info in a case where virtual register, used for a value, is initialized after a dbg intrinsic is seen.
...
llvm-svn: 112207
2010-08-26 18:36:14 +00:00
a9c03f4fae
Reapply r112176 without removing the other CMN patterns (that was unintentional).
...
llvm-svn: 112206
2010-08-26 18:33:51 +00:00
2c45f431fa
MCELF: Fix a thinko of mine.
...
llvm-svn: 112203
2010-08-26 18:12:04 +00:00
a967c42a3d
Fix comment typos.
...
llvm-svn: 112202
2010-08-26 18:08:11 +00:00
bd2ecc7e68
Make JumpThreading smart enough to properly thread StrSwitch when it's compiled with clang++.
...
llvm-svn: 112198
2010-08-26 17:40:24 +00:00
929cc7618f
MCELF: Compensate for the addend on i386. Patch by Roman Divacky, with some cleanups.
...
llvm-svn: 112197
2010-08-26 17:23:02 +00:00
074d22e1ac
Restrict the register to tGPR to make sure the str instruction will be
...
encodable as a 16-bit wide instruction.
llvm-svn: 112195
2010-08-26 17:02:47 +00:00
10b20b2b81
Revert r112176; it broke test/CodeGen/Thumb2/thumb2-cmn.ll.
...
llvm-svn: 112191
2010-08-26 15:50:25 +00:00
ca26f79051
Reapply r112091 and r111922, support for metadata linking, with a
...
fix: add a flag to MapValue and friends which indicates whether
any module-level mappings are being made. In the common case of
inlining, no module-level mappings are needed, so MapValue doesn't
need to examine non-function-local metadata, which can be very
expensive in the case of a large module with really deep metadata
(e.g. a large C++ program compiled with -g).
This flag is a little awkward; perhaps eventually it can be moved
into the ClonedCodeInfo class.
llvm-svn: 112190
2010-08-26 15:41:53 +00:00
9bf0380a54
StringRef::compare_numeric also differed from StringRef::compare for characters > 127.
...
llvm-svn: 112189
2010-08-26 15:25:35 +00:00
b04d4af057
Do unsigned char comparisons in StringRef::compare_lower to be more consistent with compare in corner cases.
...
llvm-svn: 112185
2010-08-26 14:21:08 +00:00
a9a0599b39
There seems to be a (potential) hardware bug with the CMN instruction and
...
comparison with 0. These two pieces of code should give identical results:
rsbs r1, r1, 0
cmp r0, r1
mov r0, #0
it ls
mov r0, #1
and:
cmn r0, r1
mov r0, #0
it ls
mov r0, #1
However, the CMN gives the *opposite* result when r1 is 0. This is because the
carry flag is set in the CMP case but not in the CMN case. In short, the CMP
instruction doesn't perform a truncate of the (logical) NOT of 0 plus the value
of r0 and the carry bit (because the "carry bit" parameter to AddWithCarry is
defined as 1 in this case, the carry flag will always be set when r0 >= 0). The
CMN instruction doesn't perform a NOT of 0 so there is never a "carry" when this
AddWithCarry is performed (because the "carry bit" parameter to AddWithCarry is
defined as 0).
The AddWithCarry in the CMP case seems to be relying upon the identity:
~x + 1 = -x
However when x is 0 and unsigned, this doesn't hold:
x = 0
~x = 0xFFFF FFFF
~x + 1 = 0x1 0000 0000
(-x = 0) != (0x1 0000 0000 = ~x + 1)
Therefore, we should disable *all* versions of CMN, especially when comparing
against zero, until we can limit when the CMN instruction is used (when we know
that the RHS is not 0) or when we have a hardware fix for this.
(See the ARM docs for the "AddWithCarry" pseudo-code.)
This is related to <rdar://problem/7569620>.
llvm-svn: 112176
2010-08-26 09:07:33 +00:00
af23e9a798
Add a hackaround for PR7993 which is causing failures on x86 builders that lack sse2.
...
llvm-svn: 112175
2010-08-26 06:57:07 +00:00
eb2cc0ce0e
implement SplitVecOp_CONCAT_VECTORS, fixing the included testcase with SSE1.
...
llvm-svn: 112171
2010-08-26 05:51:22 +00:00
4cec44975e
Use pseudo instructions for VST1d64Q.
...
llvm-svn: 112170
2010-08-26 05:33:30 +00:00
cc60609cb4
fix sse1 only codegen in x86-64 mode, which is something we
...
apparently try to support.
llvm-svn: 112168
2010-08-26 05:24:29 +00:00
ce45863f0d
Revert r111922, "MapValue support for MDNodes. This is similar to r109117,
...
except ...", it is causing *massive* performance regressions when building Clang
with itself (-O3 -g).
llvm-svn: 112158
2010-08-26 03:48:11 +00:00
95fe13c720
Revert r112091, "Remap metadata attached to instructions when remapping
...
individual ...", which depends on r111922, which I am reverting.
llvm-svn: 112157
2010-08-26 03:48:08 +00:00
f6418b804e
zap dead code.
...
llvm-svn: 112155
2010-08-26 02:57:35 +00:00
2d482bb96b
remove dead proto
...
llvm-svn: 112131
2010-08-26 01:14:37 +00:00
07afbd5a08
zap dead code.
...
llvm-svn: 112130
2010-08-26 01:13:54 +00:00
184eaea855
Fix PR7748 without using microsoft extensions
...
llvm-svn: 112128
2010-08-26 01:02:53 +00:00
08da771ec3
Enable pre-RA virtual frame base register allocation. rdar://8277890
...
llvm-svn: 112127
2010-08-26 00:58:06 +00:00
8f292e7a6d
Rewrite ExtractGV, removing a bunch of stuff that didn't fully work,
...
and was over-complicated, and replacing it with a simple implementation.
llvm-svn: 112120
2010-08-26 00:22:55 +00:00
4629f423f8
Revert svn 107892 (with changes to work with trunk). It caused a crash if
...
a VLD result was not used (Radar 8355607). It should also fix pr7988, but
I haven't verified that yet.
llvm-svn: 112118
2010-08-26 00:13:36 +00:00
aecf47a5cb
we should pattern match the SSE complex arithmetic ops.
...
llvm-svn: 112109
2010-08-25 23:31:42 +00:00
9392b0e960
Start converting NEON load/stores to use pseudo instructions, beginning here
...
with the VST4 instructions. Until after register allocation, we want to
represent sets of adjacent registers by a single super-register. These
VST4 pseudo instructions have a single QQ or QQQQ source register operand.
They get expanded to the real VST4 instructions with 4 separate D register
operands. Once this conversion is complete, we'll be able to remove the
NEONPreAllocPass and avoid some fragile and hacky code elsewhere.
llvm-svn: 112108
2010-08-25 23:27:42 +00:00
8df99b523e
remove some llvmcontext arguments that are now dead post-refactoring.
...
llvm-svn: 112104
2010-08-25 23:00:45 +00:00
75ff053497
Change handling of illegal vector types to widen when possible instead of
...
expanding: e.g. <2 x float> -> <4 x float> instead of -> 2 floats. This
affects two places in the code: handling cross block values and handling
function return and arguments. Since vectors are already widened by
legalizetypes, this gives us much better code and unblocks x86-64 abi
and SPU abi work.
For example, this (which is a silly example of a cross-block value):
define <4 x float> @test2(<4 x float> %A) nounwind {
%B = shufflevector <4 x float> %A, <4 x float> undef, <2 x i32> <i32 0, i32 1>
%C = fadd <2 x float> %B, %B
br label %BB
BB:
%D = fadd <2 x float> %C, %C
%E = shufflevector <2 x float> %D, <2 x float> undef, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef>
ret <4 x float> %E
}
Now compiles into:
_test2: ## @test2
## BB#0:
addps %xmm0, %xmm0
addps %xmm0, %xmm0
ret
previously it compiled into:
_test2: ## @test2
## BB#0:
addps %xmm0, %xmm0
pshufd $1, %xmm0, %xmm1
## kill: XMM0<def> XMM0<kill> XMM0<def>
insertps $0, %xmm0, %xmm0
insertps $16, %xmm1, %xmm0
addps %xmm0, %xmm0
ret
This implements rdar://8230384
llvm-svn: 112101
2010-08-25 22:49:25 +00:00
fd824487a3
Remap metadata attached to instructions when remapping individual
...
instructions, not when remapping modules.
llvm-svn: 112091
2010-08-25 21:36:50 +00:00
d4085f6e91
Revert this for now, PUNPCKLDQ dont operate on v4f32
...
llvm-svn: 112090
2010-08-25 21:26:37 +00:00
3d148ac089
X86: Fix misencode of RI64mi8. This fixes OpenSSL / x86_64-apple-darwin10 / clang -O3.
...
llvm-svn: 112089
2010-08-25 21:11:02 +00:00
32a72ab072
Fix comment.
...
llvm-svn: 112086
2010-08-25 20:41:24 +00:00
3f53d6e56a
Remove dead argument.
...
llvm-svn: 112085
2010-08-25 20:39:26 +00:00
7c1b421ae6
Add some statistics for PEI register scavenging
...
llvm-svn: 112084
2010-08-25 20:34:28 +00:00
9b9ff467db
Add a FIXME comment.
...
llvm-svn: 112083
2010-08-25 20:23:38 +00:00
26d837d086
Fix the bitcode reader to clear out function-specific state
...
from MDValueList between each function, now that the bitcode
writer is reusing the index space for function-local metadata.
llvm-svn: 112082
2010-08-25 20:22:53 +00:00
950ad65841
Fix a bug found by inspection.
...
llvm-svn: 112081
2010-08-25 20:20:21 +00:00
4a68f9b606
Add a comment.
...
llvm-svn: 112080
2010-08-25 20:17:19 +00:00
37b384cd66
MCELF: Use precomputed symbol indices, patch by Roman Divacky.
...
llvm-svn: 112079
2010-08-25 20:09:43 +00:00
237e4ecafb
MC: Fix inconsistant naming in COFF object writer. Patch by Cameron Esfahani.
...
llvm-svn: 112076
2010-08-25 19:27:27 +00:00
0a84487fa7
Don't override the var from the enclosing scope.
...
When doing copy/paste/modify, it's apparently rather important to remember
the 'modify' bit...
llvm-svn: 112075
2010-08-25 19:11:34 +00:00
bf80d28a74
zap dead code
...
llvm-svn: 112073
2010-08-25 19:00:00 +00:00
01262e129e
DIGlobalVariable can be used to encode debug info for globals that are directly folded into a constant by FE.
...
llvm-svn: 112072
2010-08-25 18:52:02 +00:00
f1f2133ac0
Remove dead recursive function. Yay for clang -Wunused-function.
...
llvm-svn: 112060
2010-08-25 17:27:58 +00:00
22161da9ff
Clear FunctionLocalMDs in purgeFunction along with the rest of the
...
function-specific state.
llvm-svn: 112058
2010-08-25 17:11:16 +00:00
1f4b028b75
Fix whitespace.
...
llvm-svn: 112056
2010-08-25 17:09:50 +00:00
9cfe532ae5
Eliminate an unnecessary cast.
...
llvm-svn: 112055
2010-08-25 17:09:03 +00:00
a54a1b0edf
ARM/Thumb2: Fix a misselect in getARMCmp, when attempting to adjust a signed
...
comparison that would overflow.
- The other under/overflow cases can't actually happen because the immediates
which would trigger them are legal (so we don't enter this code), but
adjusted the style to make it clear the transform is always valid.
llvm-svn: 112053
2010-08-25 16:58:05 +00:00
7a0d8c69cb
Do type checks before we bother to do everything else.
...
llvm-svn: 112039
2010-08-25 08:43:57 +00:00
b3b53ecac0
Fix nasty mingw32 bug, which e.g. prevented llvm-gcc bootstrap there.
...
Mark _alloca call as clobberring EFLAGS, otherwise some DCE might remove
other flags-clobberring stuff (e.g. cmp instructions) occuring after
_alloca call.
llvm-svn: 112034
2010-08-25 07:50:11 +00:00
761e7fb605
Reorganize load mechanisms. Handle types in a little less fixed way.
...
Fix some todos. No functional change.
llvm-svn: 112031
2010-08-25 07:23:49 +00:00
0770d25758
PUNPCKLDQ should also be used for v4f32
...
llvm-svn: 112020
2010-08-25 02:55:40 +00:00
2e45d522c1
teach lowering to get target specific nodes for pshufd, emulating the same isel behavior for now, so we can pass all vector shuffle tests
...
llvm-svn: 112017
2010-08-25 02:35:37 +00:00
4afea9e3c6
In the default address space, any GEP off of null results in a trap value if you try to load it. Thus,
...
any load in the default address space that completes implies that the base value that it GEP'd from
was not null.
llvm-svn: 112015
2010-08-25 01:16:47 +00:00
01579b20a6
Don't include the is-function-local bit in the FoldingSetNodeID
...
for MDNodes, since this information is effectively implied by
the operands. This allow allows the code to avoid doing a
recursive is-it-really-function-local check in some cases.
llvm-svn: 111995
2010-08-24 23:21:12 +00:00
05bcb488b5
split the vector case of getCopyFromParts out to its own function,
...
no functionality change.
llvm-svn: 111994
2010-08-24 23:20:40 +00:00
3d9ed28046
Use Bits.data() instead of &Bits[0].
...
llvm-svn: 111993
2010-08-24 23:16:53 +00:00
96a77ebd7c
split the vector case out of getCopyToParts into its own function. No
...
functionality change.
llvm-svn: 111990
2010-08-24 23:10:06 +00:00
5b8967f8a2
tidy up, reduce indentation
...
llvm-svn: 111982
2010-08-24 22:43:11 +00:00
15b182f4d4
Fix predicate and add a comment.
...
llvm-svn: 111981
2010-08-24 22:34:11 +00:00
236ec8f3b5
Rework braindead conditionals I put in yesterday.
...
llvm-svn: 111974
2010-08-24 22:07:27 +00:00
6c99ebf5b0
Fix thumb2 mode loads to have the correct operand ordering. Add a todo
...
to fix this in the port.
llvm-svn: 111973
2010-08-24 22:03:02 +00:00
a10000006e
NULL loads are only invalid in the default address space.
...
llvm-svn: 111972
2010-08-24 22:00:55 +00:00
b695c83de9
Add support for inferring values for the default cases of switches.
...
llvm-svn: 111971
2010-08-24 21:59:42 +00:00
2eedb7949e
Add ARM heuristic for when to allocate a virtual base register for stack
...
access. rdar://8277890&7352504
llvm-svn: 111968
2010-08-24 21:19:33 +00:00
a71ab07e14
Change the parsing of .loc back to allow the LineNumber field to be optional as
...
it is with other assemblers.
llvm-svn: 111967
2010-08-24 21:14:47 +00:00
ccd28d0665
Fix COFF x86-64 relocations. PR7960.
...
Multiple symbol reloc handling part of the patch by Cameron Esfahani.
llvm-svn: 111963
2010-08-24 21:04:52 +00:00
da34de1599
Add support for inferring that a load from a pointer implies that it is not null.
...
llvm-svn: 111959
2010-08-24 20:47:29 +00:00
1264b7cab8
First bit of support for the dwarf .loc directive. This patch updates the
...
needed parsing for the .loc directive and saves the current info from that
into the context. The next patch will take the current loc info after an
instruction is assembled and save that info into a vector for each section for
use to build the line number tables. The patch after that will encode the info
from those vectors into the output file as the dwarf line tables.
llvm-svn: 111956
2010-08-24 20:32:42 +00:00
3aeedd1e5a
- Add the LinkerPrivateWeakDefAutoLinkage to the Ada bindings.
...
- Support the LinkerWeak*Linkage types in llvm-nm and in LinkModules.cpp.
llvm-svn: 111952
2010-08-24 20:00:52 +00:00
1c8d777c93
MC/X86: Tweak imul recognition, previous hack only applies for the imul form
...
taking immediates.
llvm-svn: 111950
2010-08-24 19:37:56 +00:00
8ad536a902
Link NamedMDNodes after linking GlobalValues, so that MDNodes
...
which reference GlobalValues are properly remapped.
llvm-svn: 111949
2010-08-24 19:37:11 +00:00
3535190116
When linking NamedMDNodes, remap their operands.
...
llvm-svn: 111948
2010-08-24 19:31:04 +00:00
09392785b4
MC/X86: Add custom hack for recognizing "imul $12, %eax" and friends.
...
llvm-svn: 111947
2010-08-24 19:24:18 +00:00
2476432639
MC/AsmParser: Change ParseExpression to use ParseIdentifier(), to support
...
dollars in identifiers.
llvm-svn: 111946
2010-08-24 19:13:42 +00:00
94b84a19b9
MC/X86: Warn on scale factors > 1 without index register, instead of erroring,
...
for 'as' compatibility.
llvm-svn: 111945
2010-08-24 19:13:38 +00:00
b77d67f318
Move enabling the local stack allocation pass into the target where it belongs.
...
For now it's still a command line option, but the interface to the generic
code doesn't need to know that.
llvm-svn: 111942
2010-08-24 19:05:43 +00:00
a209503467
Use MapValue in the Linker instead of having a private function
...
which does the same thing. This eliminates redundant code and
handles MDNodes better. MDNode linking still doesn't fully
work yet though.
llvm-svn: 111941
2010-08-24 18:50:07 +00:00
3b96ffdac1
MC/Parser: Accept leading dollar signs in identifiers.
...
- Implemented by manually splicing the tokens. If this turns out to be
problematically platform specific, a more elegant solution would be to
implement some context dependent lexing support.
llvm-svn: 111934
2010-08-24 18:12:12 +00:00
e06c8137e0
Don't cast away qualifiers with C-style casts.
...
llvm-svn: 111933
2010-08-24 18:09:44 +00:00
35b7c033d4
add ARM cmd line option to force always using virtual base regs when possible.
...
Intended to help ease reproducing problems by increasing base register usage
after heuristics for only using the when needed are in place.
llvm-svn: 111930
2010-08-24 18:04:52 +00:00
a536f077fe
Relocate against parent if the symbol is not in section or it's a common symbol, from Roman Divacky.
...
llvm-svn: 111925
2010-08-24 17:34:39 +00:00
7c853e877e
Turn LVI on, previously detected failures should be fixed now.
...
llvm-svn: 111923
2010-08-24 17:21:18 +00:00
6901283544
MapValue support for MDNodes. This is similar to r109117, except
...
that it avoids a lot of unnecessary cloning by avoiding remapping
MDNode cycles when none of the nodes in the cycle actually need to
be remapped. Also it uses the new temporary MDNode mechanism.
llvm-svn: 111922
2010-08-24 17:10:10 +00:00
c88fda477a
Fix X86's isLegalAddressingMode to recognize that static addresses
...
need not be RIP-relative in small mode.
llvm-svn: 111917
2010-08-24 15:55:12 +00:00
f0715b179a
Add a comment explaining why this code doesn't just call
...
ParseMetadataValue.
llvm-svn: 111914
2010-08-24 14:35:45 +00:00
7c7f13a5e6
Add a comment explaining why this code is more complex than it
...
initially seems it should require.
llvm-svn: 111913
2010-08-24 14:31:06 +00:00
7e25bc4145
Fix SPU BE to use all the available return registers.
...
llc used to assert on the added testcase.
llvm-svn: 111911
2010-08-24 11:50:48 +00:00
8f3e3ba5ff
Remove some dead code from SPU BE that remained
...
from 64bit vector support.
llvm-svn: 111910
2010-08-24 11:05:51 +00:00
c62f704576
Don't assume that all constants with integer types are ConstantInts.
...
llvm-svn: 111906
2010-08-24 07:55:44 +00:00
10215a12e8
Add braces to fix dangling else.
...
llvm-svn: 111896
2010-08-24 02:40:27 +00:00
c828c5465d
Extend function-local metadata to be usable as attachments.
...
llvm-svn: 111895
2010-08-24 02:24:03 +00:00
ab09a12cad
When we know we have an MDValue or MDString, call EnumerateMetadata
...
directly instead of going through EnumerateValue.
llvm-svn: 111894
2010-08-24 02:10:52 +00:00
338d9a4935
Give ParseInstructionMetadata access to the PerFunctionState object.
...
This is in preparation for generalizing its parsing of function-local
values.
llvm-svn: 111893
2010-08-24 02:05:17 +00:00
d3d2bbe620
Simplify this code. NamedMDNode operands are MDNodes.
...
llvm-svn: 111892
2010-08-24 02:01:24 +00:00
758d7b1f5c
Use pshufhw and pshuflw in more cases and fix getTargetShuffleNode number of arguments
...
llvm-svn: 111890
2010-08-24 01:16:15 +00:00
2c64ba63a1
Add comments for what the condition code symbols mean.
...
llvm-svn: 111889
2010-08-24 01:11:30 +00:00
46d3a56e5d
Update comment.
...
llvm-svn: 111887
2010-08-24 01:10:52 +00:00
c0c00ca33f
Fix the opcode and the operands for the load instruction.
...
llvm-svn: 111885
2010-08-24 01:10:04 +00:00
eb47692c22
Add register class hack that needs to go away, but makes it more obvious
...
that it needs to go away. Use loadRegFromStackSlot where possible.
Also, remember to update the value map.
llvm-svn: 111883
2010-08-24 00:50:47 +00:00
02db8f6415
fix rdar://7997827 - Accept and ignore LL and ULL suffixes on integer literals.
...
Also fix 0b010 syntax to actually work while we're at it :-)
llvm-svn: 111876
2010-08-24 00:43:25 +00:00
9d4e471cc2
Add some more debugging code, make it more obvious that RegOffset is
...
getting an address for an object and select some default values.
llvm-svn: 111871
2010-08-24 00:07:24 +00:00
4a213870db
Revert r107202. It is not adding any value.
...
llvm-svn: 111870
2010-08-24 00:06:12 +00:00
e3107d6283
Don't need the extra register here.
...
llvm-svn: 111864
2010-08-23 23:28:04 +00:00
dd719f701d
Let FE use derived types for DW_TAG_friend.
...
Patch by Alexander Herz!
llvm-svn: 111861
2010-08-23 23:16:25 +00:00
414501c511
Add some more "get address into register" code and a more TODOs/FIXMEs.
...
llvm-svn: 111860
2010-08-23 23:14:31 +00:00
8d03b8a8ce
Add an ARMFunctionInfo member and use it.
...
llvm-svn: 111854
2010-08-23 22:32:45 +00:00
5d29673855
Verify that a non-uniqued non-temporary MDNode is not deleted via
...
MDNode::deleteTemporary.
llvm-svn: 111853
2010-08-23 22:32:05 +00:00
00202ee329
Start getting ARM loads/address computation going.
...
llvm-svn: 111850
2010-08-23 21:44:12 +00:00
d41b53c037
Fix thinko. Having no tests is great ...
...
llvm-svn: 111848
2010-08-23 21:32:00 +00:00
616bc356e9
Remove the MFI storage of the local allocation block size. It's not needed.
...
llvm-svn: 111847
2010-08-23 21:29:29 +00:00
c4809c930a
Reduce code duplication.
...
llvm-svn: 111846
2010-08-23 21:23:52 +00:00
86511dce18
ELFObjectWriter: Run ComputeSymbolTable before recording relocations. This way we can use the information it has computed and don't have to recompute the same stuff over and over again.
...
llvm-svn: 111844
2010-08-23 21:19:37 +00:00
264d90fff7
Start using target speficic nodes for shuffles: pshufhw and pshuflw
...
llvm-svn: 111837
2010-08-23 20:41:02 +00:00
754f8e600e
Better handling of local offsets for downwards growing stacks. This corrects
...
relative offsets when there are offsets encoded in the instructions and
simplifies final allocation in PEI. rdar://8277890
llvm-svn: 111836
2010-08-23 20:40:38 +00:00
21fed6616c
tyops
...
llvm-svn: 111835
2010-08-23 20:30:51 +00:00
6ffa3f2aea
Turn LVI back off, I have a testcase now.
...
llvm-svn: 111834
2010-08-23 19:59:27 +00:00
58bd73a5a7
Add a new llvm.x86.int intrinsic, allowing access to the
...
x86 int and int3 instructions. Patch by Peter Housel!
llvm-svn: 111831
2010-08-23 19:39:25 +00:00
c6c79ddcb9
Add a TODO.
...
llvm-svn: 111828
2010-08-23 19:24:12 +00:00
bf38e0749d
llvmc: Properly handle (error) in edge properties.
...
llvm-svn: 111827
2010-08-23 19:24:08 +00:00
40f83489b4
Add the symbol offset to the relocation value when we relocate against section. By Roman Divacky.
...
llvm-svn: 111824
2010-08-23 19:05:46 +00:00
a8652674e0
Handle qualified constants that are directly folded by FE.
...
PR 7920.
llvm-svn: 111820
2010-08-23 18:25:56 +00:00
620b68e883
Use the proper relocation section + cleanup, from Roman Divacky.
...
llvm-svn: 111819
2010-08-23 18:24:20 +00:00
08fd2cf26a
Avoid O(n*m) complexity in StringRef::find_first(_not)_of(StringRef).
...
- Cache used characters in a bitset to reduce memory overhead to just 32 bytes.
- On my core2 this code is faster except when the checked string was very short
(smaller than the list of delimiters).
llvm-svn: 111817
2010-08-23 18:16:08 +00:00
630add39a6
Re-enable LazyValueInfo. Monitoring for failures.
...
llvm-svn: 111816
2010-08-23 18:12:23 +00:00
d31d82d75c
Now that PassInfo and Pass::ID have been separated, move the rest of the passes over to the new registration API.
...
llvm-svn: 111815
2010-08-23 17:52:01 +00:00
a42202e0e4
random improvement for variable shift codegen.
...
llvm-svn: 111813
2010-08-23 17:30:29 +00:00
191c4f73b2
Fix some GCC warnings by providing a virtual destructor in the base of a class
...
hierarchy with virtual methods and using llvm_unreachable to properly indicate
unreachable states which would otherwise leave variables uninitialized.
llvm-svn: 111803
2010-08-23 08:25:07 +00:00
cbbe4501df
Revert invalid r111792. Jump tables are not broken on x86-64 / coff,
...
it's COFF emitter which does not support differences of two symbols
(and needs to be fixed). GAS is pretty fine with code produced.
llvm-svn: 111801
2010-08-23 07:38:51 +00:00
db06215b7f
Revert part of my last commit. the mingw32 build bot doesn't seem to like it.
...
llvm-svn: 111793
2010-08-23 05:25:23 +00:00
e87231232a
Workaround broken jump tables on x86-64 COFF.
...
llvm-svn: 111792
2010-08-23 04:45:37 +00:00
c3847a8134
remove some dead code.
...
llvm-svn: 111791
2010-08-23 03:12:06 +00:00
c72d2853e1
Verify the predicates on icmp/fcmp. Suggested by Jeff Yasskin!
...
llvm-svn: 111787
2010-08-22 23:45:14 +00:00
ac305d2024
Delete dead comment.
...
llvm-svn: 111744
2010-08-21 20:19:51 +00:00
db9820ecaa
Use rip-rel addressing on win64 by default. For this we just
...
defaults to small pic code model.
llvm-svn: 111741
2010-08-21 17:21:11 +00:00
1f3b0c03e5
Use MDNode::destroy(). Fixes a delete/free mismatch.
...
llvm-svn: 111739
2010-08-21 15:07:23 +00:00
377aa20e6e
MC: Add partial x86-64 support to COFF.
...
llvm-svn: 111728
2010-08-21 05:58:13 +00:00
573869fe5b
Add an assert to MDNode::deleteTemporary check that the node being deleted
...
is not non-temporary.
llvm-svn: 111713
2010-08-21 02:52:29 +00:00
42ef669d81
Fix x86 fast-isel's cmp+branch folding to avoid folding when the
...
comparison is in a different basic block from the branch. In such
cases, the comparison's operands may not have initialized virtual
registers available.
llvm-svn: 111709
2010-08-21 02:32:36 +00:00
9f20e7a1bf
Prepare LowerVECTOR_SHUFFLEv8i16 to use x86 target specific nodes directly
...
llvm-svn: 111704
2010-08-21 01:32:18 +00:00
6f3b38a851
This is the first step towards refactoring the x86 vector shuffle code. The
...
general idea here is to have a group of x86 target specific nodes which are
going to be selected during lowering and then directly matched in isel.
The commit includes the addition of those specific nodes and a *bunch* of
patterns, and incrementally we're going to switch between them and what we
have right now. Both the patterns and target specific nodes can change as
we move forward with this work.
llvm-svn: 111691
2010-08-20 22:55:05 +00:00
5fc55dc3cf
CreateTemporaryType doesn't needs its Context argument.
...
llvm-svn: 111687
2010-08-20 22:39:47 +00:00
578ee4070c
Create the new linker type "linker_private_weak_def_auto".
...
It's similar to "linker_private_weak", but it's known that the address of the
object is not taken. For instance, functions that had an inline definition, but
the compiler decided not to inline it. Note, unlike linker_private and
linker_private_weak, linker_private_weak_def_auto may have only default
visibility. The symbols are removed by the linker from the final linked image
(executable or dynamic library).
llvm-svn: 111684
2010-08-20 22:05:50 +00:00
16a5d98c3a
Introduce a new temporary MDNode concept. Temporary MDNodes are
...
not part of the IR, are not uniqued, and may be safely RAUW'd.
This replaces a variety of alternate mechanisms for achieving
the same effect.
llvm-svn: 111681
2010-08-20 22:02:26 +00:00
2b2b79edde
Fix --disable-threads build, PR7949.
...
llvm-svn: 111676
2010-08-20 20:54:37 +00:00
7648a21152
Downwards growing stack allocation order reverses relative offsets
...
llvm-svn: 111673
2010-08-20 20:25:31 +00:00
7110941d68
Add more dbg output
...
llvm-svn: 111670
2010-08-20 19:04:43 +00:00
d3eb989f37
Update CMake build.
...
llvm-svn: 111669
2010-08-20 18:56:46 +00:00
84c29a096b
Re-apply r111568 with a fix for the clang self-host.
...
llvm-svn: 111665
2010-08-20 18:24:43 +00:00
12cbe696e4
Delete SlowOperationInformer, which is no longer used.
...
llvm-svn: 111661
2010-08-20 18:07:37 +00:00
a931605647
Convert DbgInfoPrinter to use errs() instead of outs().
...
llvm-svn: 111659
2010-08-20 18:03:05 +00:00
0600691fe6
properly check for whether base regs were inserted
...
llvm-svn: 111646
2010-08-20 16:48:30 +00:00
e9a469115c
Make outs() close its file when its stream is destructed, so that
...
pending output errors are detected.
llvm-svn: 111643
2010-08-20 16:44:56 +00:00
443f2d6426
Delete raw_stdout_ostream and raw_stderr_ostream, which are unused
...
outside of outs() and errs() themselves, and they don't really
need custom classes.
llvm-svn: 111642
2010-08-20 16:39:41 +00:00
38adfdd100
Move raw_ostream's Error flag into raw_fd_ostream, as that's the only
...
class which is using it.
llvm-svn: 111639
2010-08-20 16:34:20 +00:00
b4d48706ca
Expose LLVMSetOperand and LLVMGetNumOperands to llvm-c and ocaml.
...
llvm-svn: 111625
2010-08-20 14:51:22 +00:00
024ec17332
llvmc: Cut global namespace pollution.
...
llvm-svn: 111619
2010-08-20 11:24:44 +00:00
9a511c07e4
Replace the arm.neon.vmovls and vmovlu intrinsics with vector sign-extend and
...
zero-extend operations.
llvm-svn: 111614
2010-08-20 04:54:02 +00:00
b87ad69350
Introduce a new tool_output_file class, which extends raw_ostream with
...
functionality that most command-line tools need: ensuring that the
output file gets deleted if the tool is interrupted or encounters an
error.
llvm-svn: 111595
2010-08-20 00:48:10 +00:00
985d9e4ea8
Fix loop conditionals (MO.isDef() asserts that it's a reg) and
...
move some constraints around.
llvm-svn: 111594
2010-08-20 00:36:24 +00:00
d8e8a2945e
Add a couple of random comments.
...
llvm-svn: 111592
2010-08-20 00:20:31 +00:00
c56fef4eac
If the target says that an extending load is not legal, regardless of whether
...
it involves specific floating-point types, legalize should expand an
extending load to a non-extending load followed by a separate extend operation.
For example, we currently expand SEXTLOAD to EXTLOAD+SIGN_EXTEND_INREG (and
assert that EXTLOAD should always be supported). Now we can expand that to
LOAD+SIGN_EXTEND. This is needed to allow vector SIGN_EXTEND and ZERO_EXTEND
to be used for NEON.
llvm-svn: 111586
2010-08-19 23:52:39 +00:00
56e56323c8
Better handling of offsets on frame index references. rdar://8277890
...
llvm-svn: 111585
2010-08-19 23:52:25 +00:00
f14d946379
CrashRecovery/Darwin: On Darwin, raise sends a signal to the main thread instead
...
of the current thread. This has the unfortunate effect that assert() and abort()
will end up bypassing our crash recovery attempts. We work around this for
anything in the same linkage unit by just defining our own versions of the
assert handler and abort.
llvm-svn: 111583
2010-08-19 23:45:39 +00:00
e5af930156
Update debug logs.
...
llvm-svn: 111575
2010-08-19 23:33:02 +00:00
63a868457b
Properly update MachineDominators when splitting critical edge.
...
llvm-svn: 111574
2010-08-19 23:32:47 +00:00
43057cd56a
Revert r111568 to unbreak clang self-host.
...
llvm-svn: 111571
2010-08-19 23:25:16 +00:00
bb723b228a
When a set of bitmask operations, typically from a bitfield initialization, only modifies the low bytes of a value,
...
we can narrow the store to only over-write the affected bytes.
llvm-svn: 111568
2010-08-19 22:15:40 +00:00
aac8cbb261
Disable LVI while I evaluate a failure.
...
llvm-svn: 111551
2010-08-19 19:47:08 +00:00
5c87dd55d3
Tentatively enabled LVI by default. I'll be monitoring for any failures.
...
llvm-svn: 111543
2010-08-19 19:04:40 +00:00
68caaaf282
Correct header.
...
llvm-svn: 111540
2010-08-19 18:52:17 +00:00
361b9be7c6
It's possible to sink a def if its local uses are PHI's.
...
llvm-svn: 111537
2010-08-19 18:33:29 +00:00
abca173494
Fix the msvc 2010 build.
...
The Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 16.00.30319.01
implements parts of C++0x based on the draft standard. An old version of
the draft had a bug that makes std::pair<T1*, T2*>(something, 0) fail to
compile. This is because the template<class U, class V> pair(U&& x, V&& y)
constructor is selected, even though it later fails to implicitly convert
U and V to frist_type and second_type.
This has been fixed in n3090, but it seems that Microsoft is not going to
update msvc.
llvm-svn: 111535
2010-08-19 18:16:39 +00:00
370c77c064
Do not assert when reading an exponent out of range.
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llvm-svn: 111534
2010-08-19 17:58:35 +00:00
8c58bd30dc
Add Thumb1 support for virtual frame indices.
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rdar://8277890
llvm-svn: 111533
2010-08-19 17:52:13 +00:00
681d0c25f9
Remove disabled assertion.
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llvm-svn: 111531
2010-08-19 17:33:48 +00:00
ae9939c839
Teach machine-sink to break critical edges when appropriate. Work in progress.
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llvm-svn: 111530
2010-08-19 17:33:11 +00:00
a5d60c62b1
Silence warning.
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llvm-svn: 111518
2010-08-19 15:35:27 +00:00
448886d5df
MCELF: Count the section orders properly. Patch by Roman Divacky.
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llvm-svn: 111517
2010-08-19 13:44:49 +00:00
743d7c80e4
Update local stack block allocation to let PEI do the allocs if no additional
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base registers were required. This will allow for slightly better packing
of the locals when alignment padding is necessary after callee saved registers.
llvm-svn: 111508
2010-08-19 02:47:08 +00:00
f71c521fb7
Revert r111199; it breaks -debug-pass=Structure output.
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llvm-svn: 111500
2010-08-19 01:29:07 +00:00
f547740d3f
fix PR7465, mishandling of lcall and ljmp: intersegment long
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call and jumps.
llvm-svn: 111496
2010-08-19 01:18:43 +00:00
129a816ee6
Process the step before the start, because it's usually the simpler
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of the two.
llvm-svn: 111495
2010-08-19 01:02:31 +00:00
beb506eeed
minor progress towards fixing PR7465
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llvm-svn: 111494
2010-08-19 01:00:34 +00:00
0d274a0258
Add an AddOptionalDefs method and use it.
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llvm-svn: 111489
2010-08-19 00:37:05 +00:00
768d3b510c
Add the "isCompare" attribute to the defm instead of each individual instr.
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llvm-svn: 111481
2010-08-19 00:05:48 +00:00
92d57cee61
Don't call Predicate_* in Mips.
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llvm-svn: 111468
2010-08-18 23:56:46 +00:00
8a70781cac
Remove extra header.
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llvm-svn: 111456
2010-08-18 23:38:16 +00:00
3ac059369b
Add a newline to debug output
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llvm-svn: 111453
2010-08-18 23:14:02 +00:00
3decde9305
refix PR1143 by making basicaa analyze zexts of indices aggresively,
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which I broke with a recent patch.
llvm-svn: 111452
2010-08-18 23:09:49 +00:00
25b6068b8f
If any def of a machine-sink candidate has local uses, it's obviously not safe to sink it to a successor block. This bug has been hidden because a later check for critical-edge disable these illegal optimizations. This patch should significantly reduce the amount of time spent on checking dominator information for obviously unsafe sinking.
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llvm-svn: 111450
2010-08-18 23:09:25 +00:00
26403acef7
GetLinearExpression is only called when TD is non-null, pass as
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a reference instead of pointer.
llvm-svn: 111445
2010-08-18 22:52:09 +00:00
1b9c38796e
rework GEP decomposition to make a new VariableGEPIndex struct instead of
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using a pair. This tidies up the code a bit. While setting things up, add
a (currently unused) field to keep track of how the value is extended.
llvm-svn: 111444
2010-08-18 22:47:56 +00:00
dbfc2ce95d
Enable ARM base register reuse to local stack slot allocation. Whenever a new
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frame index reference to an object in the local block is seen, check if
it's near enough to any previously allocaated base register to re-use.
rdar://8277890
llvm-svn: 111443
2010-08-18 22:44:49 +00:00
c825ceefb4
Make raw_fd_ostream consider itself the owner of STDOUT_FILENO when
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constructed with an output filename of "-". In particular, allow the
file descriptor to be closed, and close the file descriptor in the
destructor if it hasn't been explicitly closed already, to ensure
that any write errors are detected.
llvm-svn: 111436
2010-08-18 22:26:19 +00:00
9f7500f57b
move gep decomposition out of ValueTracking into BasicAA. The form of
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decomposition that it is doing is very basicaa specific and is only used
by basicaa.
Now with less tree breakingness.
llvm-svn: 111433
2010-08-18 22:07:29 +00:00
3490ff4002
Tidy.
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llvm-svn: 111432
2010-08-18 22:04:43 +00:00
ad2aa57774
Minor simplification. Gets rid of a needless temporary.
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llvm-svn: 111430
2010-08-18 21:32:07 +00:00
80d19f0905
Use ConstantRange to propagate information through value definitions.
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llvm-svn: 111425
2010-08-18 21:11:37 +00:00
e98030ad58
Thinking about it, we don't need MachineDominatorTree after all. The DomValue
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map discovers the iterated dominance frontier for free.
llvm-svn: 111400
2010-08-18 20:29:53 +00:00
f4088b022a
Revert r111394. It was too aggressive.
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We must complete the DFS, otherwise we might miss needed phi-defs, and
prematurely color live ranges with a non-dominating value.
This is not a big deal since we get to color more of the CFG and the next
mapValue call will be faster.
llvm-svn: 111397
2010-08-18 20:06:05 +00:00
5b4cb08471
Aggressively prune the DFS when inserting phi-defs.
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llvm-svn: 111394
2010-08-18 19:00:11 +00:00
ce6f055b4d
Add the LiveIntervalMap class. Don't hook it up yet.
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LiveIntervalMap maps values from a parent LiveInterval to a child interval that
is a strict subset. It will create phi-def values as needed to preserve the
VNInfo SSA form in the child interval.
This leads to an algorithm very similar to the one in SSAUpdaterImpl.h, but with
enough differences that the code can't be reused:
- We don't need to manipulate PHI instructions.
- LiveIntervals have kills.
- We have MachineDominatorTree.
- We can use df_iterator.
llvm-svn: 111393
2010-08-18 19:00:08 +00:00
fbeeb130d8
Revert r111375, "move gep decomposition out of ValueTracking into BasicAA. The
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form of", it doesn't pass tests.
llvm-svn: 111385
2010-08-18 18:43:08 +00:00
0d323aef46
Improve whitespace.
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llvm-svn: 111384
2010-08-18 18:41:13 +00:00
817e857b13
Marked with ATTRIBUTE_USED so that clang doesn't complain.
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llvm-svn: 111383
2010-08-18 18:40:57 +00:00
208636fa33
Inform LazyValueInfo whenever a block is deleted, to avoid dangling pointer issues.
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llvm-svn: 111382
2010-08-18 18:39:01 +00:00
8e92d9b68d
MC/ELF: Allow null values in virtual sections, ELF doesn't use special
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directives for putting contents in .bss, for example.
llvm-svn: 111376
2010-08-18 18:22:37 +00:00
54fe883203
move gep decomposition out of ValueTracking into BasicAA. The form of
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decomposition that it is doing is very basicaa specific and is only used
by basicaa.
llvm-svn: 111375
2010-08-18 18:22:17 +00:00
e0e9b3013f
Add hook for re-using virtual base registers for local stack slot access.
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Nothing fancy, just ask the target if any currently available base reg
is in range for the instruction under consideration and use the first one
that is. Placeholder ARM implementation simply returns false for now.
ongoing saga of rdar://8277890
llvm-svn: 111374
2010-08-18 17:57:37 +00:00
952a621d93
Preserve subregs on PHI source operands. Patch by Krister Wombell!
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llvm-svn: 111366
2010-08-18 16:09:47 +00:00
e60b5161d1
Fix a bug with insertelement on SPU.
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The previous algorithm in LowerVECTOR_SHUFFLE
didn't check all requirements for "monotonic" shuffles.
llvm-svn: 111361
2010-08-18 10:20:29 +00:00
ab49360f59
Remove all traces of v2[i,f]32 on SPU.
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The "half vectors" are now widened to full size by the legalizer.
The only exception is in parameter passing, where half vectors are
expanded. This causes changes to some dejagnu tests.
llvm-svn: 111360
2010-08-18 10:04:39 +00:00
f3984d1ef6
Change SPU C calling convention to match that described in
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"SPU Application Binary Interface Specification, v1.9" by
IBM.
Specifically: use r3-r74 to pass parameters and the return value.
llvm-svn: 111358
2010-08-18 09:50:30 +00:00
a33edcb56c
fix PR7589: In brief:
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gep P, (zext x) != gep P, (sext x)
DecomposeGEPExpression was getting this wrong, confusing
basicaa.
llvm-svn: 111352
2010-08-18 04:28:19 +00:00
3c603024bb
Fix PR7755: knowing something about an inval for a pred
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from the LHS should disable reconsidering that pred on the
RHS. However, knowing something about the pred on the RHS
shouldn't disable subsequent additions on the RHS from
happening.
llvm-svn: 111349
2010-08-18 03:14:36 +00:00
f0b5b67ba5
fit in 80 cols
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llvm-svn: 111348
2010-08-18 03:13:35 +00:00
2edfdd289f
remove some dead code.
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llvm-svn: 111345
2010-08-18 02:42:11 +00:00
b45de95345
remove some dead code.
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llvm-svn: 111344
2010-08-18 02:41:56 +00:00
3e3e63efe1
remove some code that is dead now that lea's are modeled with segment registers.
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llvm-svn: 111343
2010-08-18 02:40:44 +00:00
6aabb66139
remove dead prototype.
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llvm-svn: 111342
2010-08-18 02:37:06 +00:00
fb7eaff759
Expand ZERO_EXTEND operations for NEON vector types.
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Testcase from Nick Lewycky.
llvm-svn: 111341
2010-08-18 01:45:52 +00:00
44790e7aa7
Revert r111321. This doesn't fix a problem.
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llvm-svn: 111339
2010-08-18 01:34:52 +00:00
b91c903f46
stomp some more undefined behavior, PR7775.
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llvm-svn: 111337
2010-08-18 00:33:47 +00:00
7aa9eb16fd
include config.h to get config params, hopefully unbreaking mingw builder.
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llvm-svn: 111325
2010-08-17 23:22:10 +00:00
ce3b2c3f77
Fix the rest of rdar://8318441 which happens when a raw_fd_ostream
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(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.
llvm-svn: 111321
2010-08-17 23:11:56 +00:00
6217082dc3
report_fatal_error can't use errs(), because errs() can call
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into report_fatal_error. Just blast the string to stderr with write(2)
and hope for the best! Part of rdar://8318441
llvm-svn: 111320
2010-08-17 23:03:53 +00:00
51edc7b7e1
Temporarily revert r110987 as it's causing some miscompares in
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vector heavy code. I'll re-enable when we've tracked down the problem.
llvm-svn: 111318
2010-08-17 22:55:27 +00:00
ed2b005842
Tweak IVUsers' concept of "interesting" to exclude add recurrences
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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.
llvm-svn: 111317
2010-08-17 22:50:37 +00:00
3cf08661f4
Add materialization of virtual base registers for frame indices allocated into
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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.
llvm-svn: 111315
2010-08-17 22:41:55 +00:00
09b0c78918
CrashRecovery: Clear the current context on the first crash, to avoid re-entering it if the cleanup code crashes.
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llvm-svn: 111309
2010-08-17 22:32:39 +00:00
b30266ed20
CrashRecovery: Add CrashRecoveryContext::GetCurrent(), so clients can find the active context from anywhere.
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llvm-svn: 111308
2010-08-17 22:32:37 +00:00
ff329942cd
CrashRecovery: Make CrashRecoveryContext static methods thread safe.
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llvm-svn: 111307
2010-08-17 22:32:34 +00:00
16f96445c3
Make fast scheduler handle asm clobbers correctly.
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PR 7882. Follows suggestion by Amaury Pouly, thanks.
llvm-svn: 111306
2010-08-17 22:17:24 +00:00
88c09879c7
Revert part of one of the prev. patches - tailjmp will follow later.
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llvm-svn: 111291
2010-08-17 21:08:28 +00:00
231ab847ca
More fixes for win64:
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- Do not clobber al during variadic calls, this is AMD64 ABI-only feature
- Emit wincall64, where necessary
Patch by Cameron Esfahani!
llvm-svn: 111289
2010-08-17 21:06:07 +00:00
cd78af6e3c
Enable more win64 calls folding opportunities.
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Patch by Cameron Esfahani!
llvm-svn: 111288
2010-08-17 21:06:01 +00:00
16bfe5b0f5
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.
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llvm-svn: 111285
2010-08-17 21:00:37 +00:00
e0db9d01d9
Machine CSE preserves CFG. Pass manager was freeing machineloopinfo after machine cse before.
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llvm-svn: 111281
2010-08-17 20:57:42 +00:00
e2cbaf6ed7
Don't call tablegen'ed Predicate_* functions in the ARM target.
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llvm-svn: 111277
2010-08-17 20:39:04 +00:00
1a58ce7646
silence warning
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llvm-svn: 111274
2010-08-17 20:21:30 +00:00
da7604f53d
Remove dead code. Fixes a GCC warning.
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llvm-svn: 111271
2010-08-17 19:45:05 +00:00
62800a990b
80 column cleanup.
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llvm-svn: 111266
2010-08-17 18:39:16 +00:00
1afba421a9
Sketch i386 relocations handling, from Roman Divacky.
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Hello world builds & runs now on i386/ELF with -integrated-as.
llvm-svn: 111264
2010-08-17 18:20:28 +00:00
f02b4a686a
Don't call Predicate_* methods directly from Sparc target.
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Modernize predicates a bit.
The Predicate_* methods are not used by TableGen any longer. They are only
emitted for the sake of legacy code.
llvm-svn: 111263
2010-08-17 18:17:12 +00:00
c252ee2375
Add hook to examine an instruction referencing a frame index to determine
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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
llvm-svn: 111262
2010-08-17 18:13:53 +00:00
8995a1018c
explicitly handle no-op cases for clarity. Fixes clang warning.
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llvm-svn: 111260
2010-08-17 18:00:41 +00:00
fd0541566b
Use the correct entry size for relocation entries, from Roman Divacky.
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llvm-svn: 111259
2010-08-17 17:56:13 +00:00
647c559172
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.
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llvm-svn: 111256
2010-08-17 17:43:50 +00:00
5047ca0c02
When rotating loops, put the original header at the bottom of the
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loop, making the resulting loop significantly less ugly. Also, zap
its trivial PHI nodes, since it's easy.
llvm-svn: 111255
2010-08-17 17:39:21 +00:00
a927736604
remove trailing whitespace
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llvm-svn: 111254
2010-08-17 17:37:22 +00:00
1fe76565d0
Differentiate between RELA and REL relocations, from Roman Divacky.
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llvm-svn: 111252
2010-08-17 17:30:07 +00:00
942b10f511
Change ARM PKHTB and PKHBT instructions to use a shift_imm operand to avoid
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printing "lsl #0". This fixes the remaining parts of pr7792. Make
corresponding changes for encoding/decoding these instructions.
llvm-svn: 111251
2010-08-17 17:23:19 +00:00
a6848249ee
Fix debug message.
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llvm-svn: 111250
2010-08-17 17:15:14 +00:00
941020ed72
Use the getUniquePredecessor() utility function, instead of doing
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what it does manually.
llvm-svn: 111248
2010-08-17 17:07:02 +00:00
896bd7e932
One baby step towards i386 ELF, from Roman Divacky.
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llvm-svn: 111247
2010-08-17 17:02:29 +00:00
72a364c107
fix emacs language spec's, patch by Edmund Grimley-Evans!
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llvm-svn: 111241
2010-08-17 16:20:04 +00:00
Chris Lattner