Chris Lattner [Sat, 28 Aug 2010 03:18:45 +0000 (03:18 +0000)]
zap dead code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112349
91177308-0d34-0410-b5e6-
96231b3b80d8
Bruno Cardoso Lopes [Sat, 28 Aug 2010 02:46:39 +0000 (02:46 +0000)]
Clean up the logic of vector shuffles -> vector shifts.
Also teach this logic how to handle target specific shuffles if
needed, this is necessary while searching recursively for zeroed
scalar elements in vector shuffle operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112348
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Sat, 28 Aug 2010 01:50:57 +0000 (01:50 +0000)]
handle the constant case of vector insertion. For something
like this:
struct S { float A, B, C, D; };
struct S g;
struct S bar() {
struct S A = g;
++A.B;
A.A = 42;
return A;
}
we now generate:
_bar: ## @bar
## BB#0: ## %entry
movq _g@GOTPCREL(%rip), %rax
movss 12(%rax), %xmm0
pshufd $16, %xmm0, %xmm0
movss 4(%rax), %xmm2
movss 8(%rax), %xmm1
pshufd $16, %xmm1, %xmm1
unpcklps %xmm0, %xmm1
addss LCPI1_0(%rip), %xmm2
pshufd $16, %xmm2, %xmm2
movss LCPI1_1(%rip), %xmm0
pshufd $16, %xmm0, %xmm0
unpcklps %xmm2, %xmm0
ret
instead of:
_bar: ## @bar
## BB#0: ## %entry
movq _g@GOTPCREL(%rip), %rax
movss 12(%rax), %xmm0
pshufd $16, %xmm0, %xmm0
movss 4(%rax), %xmm2
movss 8(%rax), %xmm1
pshufd $16, %xmm1, %xmm1
unpcklps %xmm0, %xmm1
addss LCPI1_0(%rip), %xmm2
movd %xmm2, %eax
shlq $32, %rax
addq $
1109917696, %rax ## imm = 0x42280000
movd %rax, %xmm0
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112345
91177308-0d34-0410-b5e6-
96231b3b80d8
Duncan Sands [Sat, 28 Aug 2010 01:30:02 +0000 (01:30 +0000)]
Straighten out any triple strings passed on the command line before
they hit the rest of the system.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112344
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Sat, 28 Aug 2010 01:20:38 +0000 (01:20 +0000)]
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
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112343
91177308-0d34-0410-b5e6-
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Dan Gohman [Sat, 28 Aug 2010 00:51:03 +0000 (00:51 +0000)]
Completely disable tail calls when fast-isel is enabled, as fast-isel
doesn't currently support dealing with this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112341
91177308-0d34-0410-b5e6-
96231b3b80d8
Dan Gohman [Sat, 28 Aug 2010 00:49:13 +0000 (00:49 +0000)]
Trim a #include.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112340
91177308-0d34-0410-b5e6-
96231b3b80d8
Dan Gohman [Sat, 28 Aug 2010 00:39:27 +0000 (00:39 +0000)]
Fix an index calculation thinko.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112337
91177308-0d34-0410-b5e6-
96231b3b80d8
Bob Wilson [Sat, 28 Aug 2010 00:20:11 +0000 (00:20 +0000)]
We don't need to custom-select VLDMQ and VSTMQ anymore.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112336
91177308-0d34-0410-b5e6-
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Benjamin Kramer [Sat, 28 Aug 2010 00:11:12 +0000 (00:11 +0000)]
Update CMake build. Add newline at end of file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112332
91177308-0d34-0410-b5e6-
96231b3b80d8
Bob Wilson [Fri, 27 Aug 2010 23:57:52 +0000 (23:57 +0000)]
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112329
91177308-0d34-0410-b5e6-
96231b3b80d8
Owen Anderson [Fri, 27 Aug 2010 23:31:36 +0000 (23:31 +0000)]
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112325
91177308-0d34-0410-b5e6-
96231b3b80d8
Owen Anderson [Fri, 27 Aug 2010 23:29:38 +0000 (23:29 +0000)]
Improve the precision of getConstant().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112323
91177308-0d34-0410-b5e6-
96231b3b80d8
Bob Wilson [Fri, 27 Aug 2010 23:18:17 +0000 (23:18 +0000)]
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112322
91177308-0d34-0410-b5e6-
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Chris Lattner [Fri, 27 Aug 2010 23:15:21 +0000 (23:15 +0000)]
tidy up test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112321
91177308-0d34-0410-b5e6-
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Chris Lattner [Fri, 27 Aug 2010 23:05:54 +0000 (23:05 +0000)]
no really, fix the test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112317
91177308-0d34-0410-b5e6-
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Chris Lattner [Fri, 27 Aug 2010 23:05:27 +0000 (23:05 +0000)]
fix this test. It's not clear what it's really testing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112316
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Fri, 27 Aug 2010 22:53:44 +0000 (22:53 +0000)]
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112314
91177308-0d34-0410-b5e6-
96231b3b80d8
Devang Patel [Fri, 27 Aug 2010 22:25:51 +0000 (22:25 +0000)]
Simplify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112305
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Fri, 27 Aug 2010 22:24:38 +0000 (22:24 +0000)]
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112304
91177308-0d34-0410-b5e6-
96231b3b80d8
Bob Wilson [Fri, 27 Aug 2010 21:56:59 +0000 (21:56 +0000)]
Fix a comment typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112302
91177308-0d34-0410-b5e6-
96231b3b80d8
Bob Wilson [Fri, 27 Aug 2010 21:44:35 +0000 (21:44 +0000)]
Unsigned value cannot be < 0.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112300
91177308-0d34-0410-b5e6-
96231b3b80d8
Dan Gohman [Fri, 27 Aug 2010 21:39:59 +0000 (21:39 +0000)]
When merging adjacent operands, scan ahead and merge all equal
adjacent operands at once, instead of just two at a time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112299
91177308-0d34-0410-b5e6-
96231b3b80d8
Eric Christopher [Fri, 27 Aug 2010 21:38:11 +0000 (21:38 +0000)]
Fix a couple of typos.
Patch by Cameron Esfahani!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112297
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Fri, 27 Aug 2010 21:04:34 +0000 (21:04 +0000)]
remove some special shift cases that have been subsumed into the
more general simplify demanded bits logic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112291
91177308-0d34-0410-b5e6-
96231b3b80d8
Dan Gohman [Fri, 27 Aug 2010 20:45:56 +0000 (20:45 +0000)]
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112290
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Fri, 27 Aug 2010 20:44:45 +0000 (20:44 +0000)]
merge and filecheckize test
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112289
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Fri, 27 Aug 2010 20:42:10 +0000 (20:42 +0000)]
merge two tests
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112288
91177308-0d34-0410-b5e6-
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Bill Wendling [Fri, 27 Aug 2010 20:39:09 +0000 (20:39 +0000)]
Remove now unneeded command line flag that enables 'optimize compares.'
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112287
91177308-0d34-0410-b5e6-
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Owen Anderson [Fri, 27 Aug 2010 20:32:56 +0000 (20:32 +0000)]
Fix typos in comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112286
91177308-0d34-0410-b5e6-
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Chris Lattner [Fri, 27 Aug 2010 20:32:06 +0000 (20:32 +0000)]
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112285
91177308-0d34-0410-b5e6-
96231b3b80d8
Dan Gohman [Fri, 27 Aug 2010 18:55:03 +0000 (18:55 +0000)]
Switch ScalarEvolution's main Value*->SCEV* map from std::map
to DenseMap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112281
91177308-0d34-0410-b5e6-
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Chris Lattner [Fri, 27 Aug 2010 18:49:08 +0000 (18:49 +0000)]
get this test passing on linux builders.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112280
91177308-0d34-0410-b5e6-
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Chris Lattner [Fri, 27 Aug 2010 18:31:05 +0000 (18:31 +0000)]
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112278
91177308-0d34-0410-b5e6-
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Bob Wilson [Fri, 27 Aug 2010 17:13:24 +0000 (17:13 +0000)]
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112271
91177308-0d34-0410-b5e6-
96231b3b80d8
Owen Anderson [Fri, 27 Aug 2010 17:12:29 +0000 (17:12 +0000)]
Use LVI to eliminate conditional branches where we've tested a related condition previously. Update tests for this change.
This fixes PR5652.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112270
91177308-0d34-0410-b5e6-
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Dan Gohman [Fri, 27 Aug 2010 15:26:01 +0000 (15:26 +0000)]
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112267
91177308-0d34-0410-b5e6-
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Dan Gohman [Fri, 27 Aug 2010 15:16:40 +0000 (15:16 +0000)]
Clarify a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112266
91177308-0d34-0410-b5e6-
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Dan Gohman [Fri, 27 Aug 2010 15:16:09 +0000 (15:16 +0000)]
Parse " (Hidden)" and cope with it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112265
91177308-0d34-0410-b5e6-
96231b3b80d8
Dan Gohman [Fri, 27 Aug 2010 15:15:31 +0000 (15:15 +0000)]
Default to looking for clang++ in the PATH, rather than trying to
guess a path that will work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112264
91177308-0d34-0410-b5e6-
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Anton Korobeynikov [Fri, 27 Aug 2010 14:43:06 +0000 (14:43 +0000)]
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!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112262
91177308-0d34-0410-b5e6-
96231b3b80d8
Benjamin Kramer [Fri, 27 Aug 2010 10:40:51 +0000 (10:40 +0000)]
MCELF: Port EmitInstruction changes from MachO streamer. Patch by Roman Divacky.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112260
91177308-0d34-0410-b5e6-
96231b3b80d8
Benjamin Kramer [Fri, 27 Aug 2010 10:38:39 +0000 (10:38 +0000)]
MCELF: Always overwrite FixedValue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112259
91177308-0d34-0410-b5e6-
96231b3b80d8
Michael J. Spencer [Fri, 27 Aug 2010 02:49:45 +0000 (02:49 +0000)]
Fix the msvs 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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112257
91177308-0d34-0410-b5e6-
96231b3b80d8
Daniel Dunbar [Fri, 27 Aug 2010 01:30:14 +0000 (01:30 +0000)]
X86: Fix an encoding issue with LOCK_ADD64mr, which could lead to very hard to find miscompiles with the integrated assembler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112250
91177308-0d34-0410-b5e6-
96231b3b80d8
Devang Patel [Thu, 26 Aug 2010 23:35:15 +0000 (23:35 +0000)]
Revert r112213. It is not needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112242
91177308-0d34-0410-b5e6-
96231b3b80d8
Jim Grosbach [Thu, 26 Aug 2010 23:32:16 +0000 (23:32 +0000)]
Simplify eliminateFrameIndex() interface back down now that PEI doesn't need
to try to re-use scavenged frame index reference registers. rdar://
8277890
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112241
91177308-0d34-0410-b5e6-
96231b3b80d8
Devang Patel [Thu, 26 Aug 2010 22:53:27 +0000 (22:53 +0000)]
If node is not available then use FuncInfo.ValueMap to emit debug info for byval parameter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112238
91177308-0d34-0410-b5e6-
96231b3b80d8
Jim Grosbach [Thu, 26 Aug 2010 22:42:12 +0000 (22:42 +0000)]
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112237
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Thu, 26 Aug 2010 22:23:39 +0000 (22:23 +0000)]
filecheckize
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112235
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Thu, 26 Aug 2010 22:20:47 +0000 (22:20 +0000)]
rename test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112234
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Thu, 26 Aug 2010 22:14:59 +0000 (22:14 +0000)]
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112232
91177308-0d34-0410-b5e6-
96231b3b80d8
Jim Grosbach [Thu, 26 Aug 2010 21:56:30 +0000 (21:56 +0000)]
tidy up a bit. no functional change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112228
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Thu, 26 Aug 2010 21:55:42 +0000 (21:55 +0000)]
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112227
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Thu, 26 Aug 2010 21:51:41 +0000 (21:51 +0000)]
filecheckize
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112225
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Thu, 26 Aug 2010 21:50:56 +0000 (21:50 +0000)]
rename test
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112224
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Chris Lattner [Thu, 26 Aug 2010 21:35:52 +0000 (21:35 +0000)]
add m_BitCast for matching a bitcast.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112222
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Jim Grosbach [Thu, 26 Aug 2010 21:29:54 +0000 (21:29 +0000)]
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112220
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Bruno Cardoso Lopes [Thu, 26 Aug 2010 20:53:12 +0000 (20:53 +0000)]
zap the now unused MVT::getIntVectorWithNumElements
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112218
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Devang Patel [Thu, 26 Aug 2010 20:33:42 +0000 (20:33 +0000)]
Speculatively revert r112207.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112216
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Devang Patel [Thu, 26 Aug 2010 20:32:32 +0000 (20:32 +0000)]
80 col.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112215
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Devang Patel [Thu, 26 Aug 2010 20:06:46 +0000 (20:06 +0000)]
Update DanglingDebugInfo so that it can be used to track llvm.dbg.declare also.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112213
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Bob Wilson [Thu, 26 Aug 2010 18:51:29 +0000 (18:51 +0000)]
Use pseudo instructions for VST3.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112208
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Devang Patel [Thu, 26 Aug 2010 18:36:14 +0000 (18:36 +0000)]
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112207
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Bill Wendling [Thu, 26 Aug 2010 18:33:51 +0000 (18:33 +0000)]
Reapply r112176 without removing the other CMN patterns (that was unintentional).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112206
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Dan Gohman [Thu, 26 Aug 2010 18:12:22 +0000 (18:12 +0000)]
Experimental clang-based code-completion support for vim. This currently
depends on some clang patches which are not yet upstream.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112204
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Benjamin Kramer [Thu, 26 Aug 2010 18:12:04 +0000 (18:12 +0000)]
MCELF: Fix a thinko of mine.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112203
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Bob Wilson [Thu, 26 Aug 2010 18:08:11 +0000 (18:08 +0000)]
Fix comment typos.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112202
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Devang Patel [Thu, 26 Aug 2010 17:47:45 +0000 (17:47 +0000)]
Fix prototypes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112200
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Owen Anderson [Thu, 26 Aug 2010 17:40:24 +0000 (17:40 +0000)]
Make JumpThreading smart enough to properly thread StrSwitch when it's compiled with clang++.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112198
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Benjamin Kramer [Thu, 26 Aug 2010 17:23:02 +0000 (17:23 +0000)]
MCELF: Compensate for the addend on i386. Patch by Roman Divacky, with some cleanups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112197
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Jim Grosbach [Thu, 26 Aug 2010 17:02:47 +0000 (17:02 +0000)]
Restrict the register to tGPR to make sure the str instruction will be
encodable as a 16-bit wide instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112195
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Dan Gohman [Thu, 26 Aug 2010 15:50:25 +0000 (15:50 +0000)]
Revert r112176; it broke test/CodeGen/Thumb2/thumb2-cmn.ll.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112191
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Dan Gohman [Thu, 26 Aug 2010 15:41:53 +0000 (15:41 +0000)]
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112190
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Benjamin Kramer [Thu, 26 Aug 2010 15:25:35 +0000 (15:25 +0000)]
StringRef::compare_numeric also differed from StringRef::compare for characters > 127.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112189
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Benjamin Kramer [Thu, 26 Aug 2010 14:21:08 +0000 (14:21 +0000)]
Do unsigned char comparisons in StringRef::compare_lower to be more consistent with compare in corner cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112185
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Bill Wendling [Thu, 26 Aug 2010 09:07:33 +0000 (09:07 +0000)]
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>.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112176
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Chris Lattner [Thu, 26 Aug 2010 06:57:07 +0000 (06:57 +0000)]
Add a hackaround for PR7993 which is causing failures on x86 builders that lack sse2.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112175
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Chris Lattner [Thu, 26 Aug 2010 05:52:42 +0000 (05:52 +0000)]
I think enough general codegen bugs are fixed to allow this to work
on random hosts, lets see!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112172
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Chris Lattner [Thu, 26 Aug 2010 05:51:22 +0000 (05:51 +0000)]
implement SplitVecOp_CONCAT_VECTORS, fixing the included testcase with SSE1.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112171
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Bob Wilson [Thu, 26 Aug 2010 05:33:30 +0000 (05:33 +0000)]
Use pseudo instructions for VST1d64Q.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112170
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Chris Lattner [Thu, 26 Aug 2010 05:25:05 +0000 (05:25 +0000)]
Make sure this forces the x86 targets
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112169
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Chris Lattner [Thu, 26 Aug 2010 05:24:29 +0000 (05:24 +0000)]
fix sse1 only codegen in x86-64 mode, which is something we
apparently try to support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112168
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Daniel Dunbar [Thu, 26 Aug 2010 03:48:11 +0000 (03:48 +0000)]
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).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112158
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Daniel Dunbar [Thu, 26 Aug 2010 03:48:08 +0000 (03:48 +0000)]
Revert r112091, "Remap metadata attached to instructions when remapping
individual ...", which depends on r111922, which I am reverting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112157
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Chris Lattner [Thu, 26 Aug 2010 02:57:35 +0000 (02:57 +0000)]
zap dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112155
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Oscar Fuentes [Thu, 26 Aug 2010 02:29:53 +0000 (02:29 +0000)]
Updated CMake library dependencies. Removed unnecessary component name
from llvm-link/CMakeLists.txt
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112153
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John McCall [Thu, 26 Aug 2010 02:11:48 +0000 (02:11 +0000)]
SmallVector's growth policies don't like starting from zero capacity.
I think there are good reasons to change this, but in the interests
of short-term stability, make SmallVector<...,0> reserve non-zero
capacity in its constructors. This means that SmallVector<...,0>
uses more memory than SmallVector<...,1> and should really only be
used (unless/until this workaround is removed) by clients that
care about using SmallVector with an incomplete type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112147
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Chris Lattner [Thu, 26 Aug 2010 01:14:37 +0000 (01:14 +0000)]
remove dead proto
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112131
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Chris Lattner [Thu, 26 Aug 2010 01:13:54 +0000 (01:13 +0000)]
zap dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112130
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Bruno Cardoso Lopes [Thu, 26 Aug 2010 01:02:53 +0000 (01:02 +0000)]
Fix PR7748 without using microsoft extensions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112128
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Jim Grosbach [Thu, 26 Aug 2010 00:58:06 +0000 (00:58 +0000)]
Enable pre-RA virtual frame base register allocation. rdar://
8277890
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112127
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Dan Gohman [Thu, 26 Aug 2010 00:22:55 +0000 (00:22 +0000)]
Rewrite ExtractGV, removing a bunch of stuff that didn't fully work,
and was over-complicated, and replacing it with a simple implementation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112120
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Bob Wilson [Thu, 26 Aug 2010 00:13:36 +0000 (00:13 +0000)]
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112118
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Chris Lattner [Wed, 25 Aug 2010 23:43:14 +0000 (23:43 +0000)]
temporarily disable this, which started failing on the llvm-i686-linux
builder. I will investigate tonight.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112113
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Dan Gohman [Wed, 25 Aug 2010 23:33:07 +0000 (23:33 +0000)]
Convert llvm-extract to use lazy loading. This makes it substantially
faster on large modules.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112110
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Chris Lattner [Wed, 25 Aug 2010 23:31:42 +0000 (23:31 +0000)]
we should pattern match the SSE complex arithmetic ops.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112109
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Bob Wilson [Wed, 25 Aug 2010 23:27:42 +0000 (23:27 +0000)]
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112108
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John McCall [Wed, 25 Aug 2010 23:11:24 +0000 (23:11 +0000)]
Provide an explicit specialization of SmallVector at N=0 which does
not require its type argument to be complete if no members are
actually used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112106
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Chris Lattner [Wed, 25 Aug 2010 23:05:45 +0000 (23:05 +0000)]
add a specialization for the MVT form of getTypeAction, since it is
trivial.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112105
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