OSDN Git Service
Chad Rosier [Tue, 30 Oct 2012 19:11:54 +0000 (19:11 +0000)]
[inline asm] Implement mayLoad and mayStore for inline assembly. In general,
the MachineInstr MayLoad/MayLoad flags are based on the tablegen implementation.
For inline assembly, however, we need to compute these based on the constraints.
Revert r166929 as this is no longer needed, but leave the test case in place.
rdar://
12033048 and PR13504
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167040
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Akira Hatanaka [Tue, 30 Oct 2012 19:07:58 +0000 (19:07 +0000)]
Do not do tail-call optimization if target is mips16.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167039
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Hal Finkel [Tue, 30 Oct 2012 18:55:49 +0000 (18:55 +0000)]
BBVectorize: Don't make calls to SE when the result is unused.
SE was being called during the instruction-fusion process (when the result
is unreliable, and thus ignored). No functionality change is intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167037
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Nadav Rotem [Tue, 30 Oct 2012 18:37:43 +0000 (18:37 +0000)]
80-col
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167036
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Nadav Rotem [Tue, 30 Oct 2012 18:36:45 +0000 (18:36 +0000)]
LoopVectorize: Add support for write-only loops when the write destination is a single pointer.
Speedup SciMark by 1%
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167035
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Adhemerval Zanella [Tue, 30 Oct 2012 18:29:42 +0000 (18:29 +0000)]
PowerPC: Expand FSRQT for vector types
This patch expands FSQRT for floating point vector types when altivec is
used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167034
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Nadav Rotem [Tue, 30 Oct 2012 18:12:36 +0000 (18:12 +0000)]
LoopVectorize: Fix a bug in the initialization of reduction variables. AND needs to start at all-one
while XOR, and OR need to start at zero.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167032
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Ulrich Weigand [Tue, 30 Oct 2012 18:07:58 +0000 (18:07 +0000)]
Set %defaultjit to use MCJIT for PowerPC targets.
Update Transforms/LICM/2003-12-11-SinkingToPHI.ll test to use
%defaultjit as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167031
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Bill Wendling [Tue, 30 Oct 2012 17:51:02 +0000 (17:51 +0000)]
Fix grammar.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167029
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Michael Liao [Tue, 30 Oct 2012 17:33:39 +0000 (17:33 +0000)]
Enable ELF machine type to be specified explicitly in X86 backend
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167027
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Quentin Colombet [Tue, 30 Oct 2012 16:32:52 +0000 (16:32 +0000)]
Change ForceSizeOpt attribute into MinSize attribute
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167020
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Duncan Sands [Tue, 30 Oct 2012 16:03:32 +0000 (16:03 +0000)]
Fix isEliminableCastPair to work correctly in the presence of pointers
with different sizes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167018
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Hans Wennborg [Tue, 30 Oct 2012 15:11:52 +0000 (15:11 +0000)]
switch_to_lookup_table.ll: Remove some unnecessary lines, comments,
function attributes, etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167016
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Adhemerval Zanella [Tue, 30 Oct 2012 13:50:19 +0000 (13:50 +0000)]
PowerPC: More support for Altivec compare operations
This patch adds more support for vector type comparisons using altivec.
It adds correct support for v16i8, v8i16, v4i32, and v4f32 vector
types for comparison operators ==, !=, >, >=, <, and <=.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167015
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Duncan Sands [Tue, 30 Oct 2012 13:38:54 +0000 (13:38 +0000)]
Add a helper for telling whether a type is a pointer or vector of pointer type.
Simplify the implementation of the corresponding integer and float functions and
move them inline while there.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167014
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Ulrich Weigand [Tue, 30 Oct 2012 12:33:18 +0000 (12:33 +0000)]
Enable some additional constant folding for PPCDoubleDouble.
This fixes Clang :: CodeGen/complex-builtints.c on PowerPC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167013
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Hans Wennborg [Tue, 30 Oct 2012 11:23:25 +0000 (11:23 +0000)]
Use TargetTransformInfo to control switch-to-lookup table transformation
When the switch-to-lookup tables transform landed in SimplifyCFG, it
was pointed out that this could be inappropriate for some targets.
Since there was no way at the time for the pass to know anything about
the target, an awkward reverse-transform was added in CodeGenPrepare
that turned lookup tables back into switches for some targets.
This patch uses the new TargetTransformInfo to determine if a
switch should be transformed, and removes
CodeGenPrepare::ConvertLoadToSwitch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167011
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Hal Finkel [Tue, 30 Oct 2012 02:41:57 +0000 (02:41 +0000)]
Remove an invalid assert in TargetTransformImpl
getCastInstrCost had an assert prohibiting scalar to vector casts. Such casts,
however, are allowed. This should make the vectorizer buildbot happier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166998
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Sid Manning [Tue, 30 Oct 2012 02:26:15 +0000 (02:26 +0000)]
* Add e_flags enum for Hexagon
* Add Hexagon specific section indexes for small data
- Reviewed by Michael Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166997
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Jim Grosbach [Tue, 30 Oct 2012 01:04:51 +0000 (01:04 +0000)]
ARM: Better disassembly for pc-relative LDR.
When the operand is a plain immediate rather than a label, print it
as [pc, #imm] like we do for the Thumb2 wide encoding variant.
rdar://
12154503
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166991
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Reed Kotler [Tue, 30 Oct 2012 00:54:49 +0000 (00:54 +0000)]
Change mips16 delay slot jumps to non delay slot forms by default.
We will make them delay slot forms if there is something that can be
placed in the delay slot during a separate pass. Mips16 extended instructions
cannot be placed in delay slots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166990
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Nadav Rotem [Tue, 30 Oct 2012 00:40:39 +0000 (00:40 +0000)]
LoopVectorizer: change debug prints: Print the module identifier when deciding to vectorize. When deciding not to vectorize do not print the called function name because it can be null.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166989
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Jakub Staszak [Tue, 30 Oct 2012 00:01:57 +0000 (00:01 +0000)]
Re-commit r166971. I reverted it to quickly, when buildbots didn't have a chance
to test it with chapni's fix (-mattr=+avx).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166985
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Kevin Enderby [Mon, 29 Oct 2012 23:27:20 +0000 (23:27 +0000)]
Fix ARM's b.w instruction for thumb 2 and the encoding T4. The branch target
is 24 bits not 20 and the decoding needed to correctly handle converting the
J1 and J2 bits to their I1 and I2 values to reconstruct the displacement.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166982
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Jakub Staszak [Mon, 29 Oct 2012 23:13:50 +0000 (23:13 +0000)]
Revert r166971. It causes buildbot failure. To be investigated.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166979
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NAKAMURA Takumi [Mon, 29 Oct 2012 22:45:18 +0000 (22:45 +0000)]
llvm/test/CodeGen/X86/vec_shuffle-30.ll: Try to unbreak builds - assuming +avx.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166974
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Jakub Staszak [Mon, 29 Oct 2012 22:04:32 +0000 (22:04 +0000)]
Remove unused variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166973
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Jakub Staszak [Mon, 29 Oct 2012 22:02:26 +0000 (22:02 +0000)]
Simplify code. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166972
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Jakub Staszak [Mon, 29 Oct 2012 21:56:35 +0000 (21:56 +0000)]
Allow to fold vector load if there is more than one bitcast, so in the case:
%0 = load <8 x i16>* %dest
%1 = shufflevector <8 x i16> %0, <8 x i16> %in,
<8 x i32> < i32 0, i32 1, i32 2, i32 3, i32 13, i32 undef, i32 14, i32 14>
store <8 x i16> %1, <8 x i16>* %dest
We get:
vmovlpd (%eax), %xmm0, %xmm0
instead of:
vmovaps (%eax), %xmm1
vmovsd %xmm1, %xmm0, %xmm0
No extra test-case is added. I just fixed the existing one
(also it uses FileCheck now).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166971
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Nadav Rotem [Mon, 29 Oct 2012 21:52:38 +0000 (21:52 +0000)]
LoopVectorize: Update and preserve the dominator tree info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166970
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Jakub Staszak [Mon, 29 Oct 2012 21:49:46 +0000 (21:49 +0000)]
Typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166969
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Bill Schmidt [Mon, 29 Oct 2012 21:18:16 +0000 (21:18 +0000)]
This patch solves a problem with passing varargs parameters under the PPC64
ELF ABI.
A varargs parameter consisting of a single-precision floating-point value,
or of a single-element aggregate containing a single-precision floating-point
value, must be passed in the low-order (rightmost) four bytes of the
doubleword stack slot reserved for that parameter. If there are GPR protocol
registers remaining, the parameter must also be mirrored in the low-order
four bytes of the reserved GPR.
Prior to this patch, such parameters were being passed in the high-order
four bytes of the stack slot and the mirrored GPR.
The patch adds a new test case to verify the correct code generation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166968
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Simon Atanasyan [Mon, 29 Oct 2012 19:49:45 +0000 (19:49 +0000)]
Add mips64-* and mips64el-* triples to configure scripts
as valid triples denote Mips target.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166961
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Reed Kotler [Mon, 29 Oct 2012 19:39:04 +0000 (19:39 +0000)]
Implement patterns for extloadi8 and extloadi16
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166960
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Ulrich Weigand [Mon, 29 Oct 2012 18:35:49 +0000 (18:35 +0000)]
In various places throughout the code generator, there were special
checks to avoid performing compile-time arithmetic on PPCDoubleDouble.
Now that APFloat supports arithmetic on PPCDoubleDouble, those checks
are no longer needed, and we can treat the type like any other.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166958
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Ulrich Weigand [Mon, 29 Oct 2012 18:18:44 +0000 (18:18 +0000)]
APFloat cleanup: Remove now unused "arithmeticOK" logic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166954
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Chad Rosier [Mon, 29 Oct 2012 18:18:26 +0000 (18:18 +0000)]
Remove redundant test case from r166949, per Eli's suggestion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166953
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Ulrich Weigand [Mon, 29 Oct 2012 18:17:42 +0000 (18:17 +0000)]
APFloat cleanup: Remove now unused fields "sign2" and "exponent2".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166952
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Ulrich Weigand [Mon, 29 Oct 2012 18:09:01 +0000 (18:09 +0000)]
Implement arithmetic on APFloat with PPCDoubleDouble semantics by
treating it as if it were an IEEE floating-point type with 106-bit
mantissa.
This makes compile-time arithmetic on "long double" for PowerPC
in clang (in particular parsing of floating point constants)
work, and fixes all "long double" related failures in the test
suite.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166951
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Chad Rosier [Mon, 29 Oct 2012 18:01:54 +0000 (18:01 +0000)]
[ms-inline asm] Add support for the [] operator. Essentially, [expr1][expr2] is
equivalent to [expr1 + expr2]. See test cases for more examples.
rdar://
12470392
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166949
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Nadav Rotem [Mon, 29 Oct 2012 18:01:14 +0000 (18:01 +0000)]
Rename the BB-vectorize flag to match the dragonegg name
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166948
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Michael Liao [Mon, 29 Oct 2012 17:57:12 +0000 (17:57 +0000)]
Fix PR14204
- Add missing pattern on X86ISD::VZEXT from VR256 to VR256 when AVX2 is enabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166947
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Joerg Sonnenberger [Mon, 29 Oct 2012 17:56:15 +0000 (17:56 +0000)]
Fix typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166945
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Jakob Stoklund Olesen [Mon, 29 Oct 2012 17:51:52 +0000 (17:51 +0000)]
Completely disallow partial copies in adjustCopiesBackFrom().
Partial copies can show up even when CoalescerPair.isPartial() returns
false. For example:
%vreg24:dsub_0<def> = COPY %vreg31:dsub_0; QPR:%vreg24,%vreg31
Such a partial-partial copy is not good enough for the transformation
adjustCopiesBackFrom() needs to do.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166944
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Ulrich Weigand [Mon, 29 Oct 2012 17:49:34 +0000 (17:49 +0000)]
Allow i32/i64 for 'f' constraint on PowerPC.
This fixes PR12757.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166943
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Duncan Sands [Mon, 29 Oct 2012 17:31:46 +0000 (17:31 +0000)]
Remove a wrapper around getIntPtrType added to GVN by Hal in commit 166624 (the
wrapper returns a vector of integers when passed a vector of pointers) by having
getIntPtrType itself return a vector of integers in this case. Outside of this
wrapper, I didn't find anywhere in the codebase that was relying on the old
behaviour for vectors of pointers, so give this a whirl through the buildbots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166939
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Bob Wilson [Mon, 29 Oct 2012 17:27:39 +0000 (17:27 +0000)]
Remove code to saturate profile counts.
We may need to change the way profile counter values are stored, but
saturation is the wrong thing to do. Just remove it for now.
Patch by Alastair Murray!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166938
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Nadav Rotem [Mon, 29 Oct 2012 16:36:25 +0000 (16:36 +0000)]
Change the PassManagerBuilder (used by -O3) loop vectorizer flag from -vectorize to -vectorize-loops because we dont want to share the same flag as the bb-vectorizer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166937
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Hans Wennborg [Mon, 29 Oct 2012 16:26:52 +0000 (16:26 +0000)]
Minor style fixes for TargetTransformationInfo and TargetTransformImpl
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166936
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Reed Kotler [Mon, 29 Oct 2012 16:16:54 +0000 (16:16 +0000)]
Expand all atomic ops for mips16.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166935
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NAKAMURA Takumi [Mon, 29 Oct 2012 16:07:28 +0000 (16:07 +0000)]
llvm/Config/config.h.cmake: Good bye, Kevin! We won't honor authors in comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166934
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NAKAMURA Takumi [Mon, 29 Oct 2012 15:51:42 +0000 (15:51 +0000)]
PPCSubtarget.h: Add explicit braces.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166932
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NAKAMURA Takumi [Mon, 29 Oct 2012 15:51:35 +0000 (15:51 +0000)]
PPCSubtarget.h: Whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166931
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Preston Gurd [Mon, 29 Oct 2012 15:01:23 +0000 (15:01 +0000)]
This patch addresses a problem with the Post RA scheduler generating an
incorrect instruction sequence due to it not being aware that an
inline assembly instruction may reference memory.
This patch fixes the problem by causing the scheduler to always assume that any
inline assembly code instruction could access memory. This is necessary because
the internal representation of the inline instruction does not include
any information about memory accesses.
This should fix PR13504.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166929
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Bill Schmidt [Mon, 29 Oct 2012 14:59:36 +0000 (14:59 +0000)]
This patch adds alignment information for long double to the 64-bit PowerPC
ELF subtarget.
The existing logic is used as a fallback to avoid any changes to the Darwin
ABI. PPC64 ELF now has two possible data layout strings: one for FreeBSD,
which requires 8-byte alignment, and a default string that requires
16-byte alignment.
I've added a test for PPC64 Linux to verify the 16-byte alignment. If
somebody wants to add a separate test for FreeBSD, that would be great.
Note that there is a companion patch to update the alignment information
in Clang, which I am committing now as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166928
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Duncan Sands [Mon, 29 Oct 2012 14:30:05 +0000 (14:30 +0000)]
Factorize code: rather than duplication the logic in getPointerTypeSizeInBits,
just call getPointerTypeSizeInBits. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166926
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Duncan Sands [Mon, 29 Oct 2012 14:12:44 +0000 (14:12 +0000)]
Loads and stores without an explicit alignment use the abi alignment not the
preferred alignment. Correct the documentation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166925
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Duncan Sands [Mon, 29 Oct 2012 12:19:04 +0000 (12:19 +0000)]
Rather than duplicating the getPointerSize code just call getPointerSize.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166923
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Duncan Sands [Mon, 29 Oct 2012 11:29:53 +0000 (11:29 +0000)]
Silence a GCC warning about comparing signed and unsigned types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166922
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Tim Northover [Mon, 29 Oct 2012 10:47:07 +0000 (10:47 +0000)]
Align the data section correctly when loading an ELF file.
Patch by Amara Emerson.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166920
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Tim Northover [Mon, 29 Oct 2012 10:47:04 +0000 (10:47 +0000)]
Make use of common-symbol alignment info in ELF loader.
Patch by Amara Emerson.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166919
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Tim Northover [Mon, 29 Oct 2012 10:47:00 +0000 (10:47 +0000)]
Add interface for querying object files for symbol values.
Currently only implemented for ELF.
Patch by Amara Emerson.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166918
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Evgeniy Stepanov [Mon, 29 Oct 2012 09:39:03 +0000 (09:39 +0000)]
va_start, va_end, va_copy: InstrinsicInst subclasses and InstVisitor support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166916
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Nadav Rotem [Mon, 29 Oct 2012 05:28:35 +0000 (05:28 +0000)]
Calling TLI->getNumRegisters creates a circular dependency when building LLVM using cmake.
Get the number of registers by calling getTypeLegalizationCost.
PR14199.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166911
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Lang Hames [Mon, 29 Oct 2012 04:57:52 +0000 (04:57 +0000)]
Remove unused typedef.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166910
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Rafael Espindola [Mon, 29 Oct 2012 02:23:07 +0000 (02:23 +0000)]
Add -alias and -ralias options to match what we have for functions and
globals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166909
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Rafael Espindola [Mon, 29 Oct 2012 01:59:03 +0000 (01:59 +0000)]
llvm-extract changes linkages so that functions on both sides of the
split module can see each other. If it is keeping a symbol that already has
a non local linkage, it doesn't need to change it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166908
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Rafael Espindola [Mon, 29 Oct 2012 00:27:55 +0000 (00:27 +0000)]
llvm-extract was unable to handle aliases. It would leave a copy on the
output of both
llvm-extract foo.ll -func=bar
and
llvm-extract foo.ll -func=bar -delete
so the two new files could not be linked together anymore. With this change
alias are handled almost like functions and global variables. Almost because
with alias we cannot just clear the initializer/body, we have to create a new
declaration and replace the alias with it.
The net result is that now the output of the above commands can be linked
even if foo.ll has aliases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166907
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Reed Kotler [Sun, 28 Oct 2012 23:08:07 +0000 (23:08 +0000)]
Implement brind operator for mips16.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166903
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Rafael Espindola [Sun, 28 Oct 2012 21:34:43 +0000 (21:34 +0000)]
Remove TargetELFWriterInfo.
All the credit goes to Jan Voung for noticing it was dead!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166902
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Reed Kotler [Sun, 28 Oct 2012 06:02:37 +0000 (06:02 +0000)]
This patch is for the implementation of mips16 complex pattern addr16.
Previously mips16 was sharing the pattern addr which is used for mips32
and mips64. This had a number of problems:
1) Storing and loading byte and halfword quantities for mips16 has particular
problems due to the primarily non mips16 nature of SP. When we must
load/store byte/halfword stack objects in a function, we must create a mips16
alias register for SP. This functionality is tested in stchar.ll.
2) We need to have an FP register under certain conditions (such as
dynamically sized alloca). We use mips16 register S0 for this purpose.
In this case, we also use this register when accessing frame objects so this
issue also affects the complex pattern addr16. This functionality is
tested in alloca16.ll.
The Mips16InstrInfo.td has been updated to use addr16 instead of addr.
The complex pattern C++ function for addr has been copied to addr16 and
updated to reflect the above issues.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166897
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Jakob Stoklund Olesen [Sat, 27 Oct 2012 17:41:27 +0000 (17:41 +0000)]
Never attempt to join an early-clobber def with a regular kill.
This fixes PR14194.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166880
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Benjamin Kramer [Sat, 27 Oct 2012 15:18:28 +0000 (15:18 +0000)]
LoopIdiom: Add checks to avoid turning memmove into an infinite loop.
I don't think this is possible with the current implementation but that may change eventually.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166877
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Benjamin Kramer [Sat, 27 Oct 2012 14:25:51 +0000 (14:25 +0000)]
LoopIdiom: Recognize memmove loops.
This turns loops like
for (unsigned i = 0; i != n; ++i)
p[i] = p[i+1];
into memmove, which has a highly optimized implementation in most libcs.
This was really easy with the new DependenceAnalysis :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166875
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Benjamin Kramer [Sat, 27 Oct 2012 14:25:44 +0000 (14:25 +0000)]
LoopIdiom: Replace custom dependence analysis with DependenceAnalysis.
Requires a lot less code and complexity on loop-idiom's side and the more
precise analysis can catch more cases, like the one I included as a test case.
This also fixes the edge-case miscompilation from PR9481.
Compile time performance seems to be slightly worse, but this is mostly due
to an extra LCSSA run scheduled by the PassManager and should be fixed there.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166874
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Benjamin Kramer [Sat, 27 Oct 2012 11:36:07 +0000 (11:36 +0000)]
SCEV validator: Ignore CouldNotCompute/undef on both sides. This is mostly noise and blocks finding more severe bugs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166873
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Benjamin Kramer [Sat, 27 Oct 2012 10:45:01 +0000 (10:45 +0000)]
SCEV validator: Add workarounds for some common false positives due to the way it handles strings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166872
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Chandler Carruth [Sat, 27 Oct 2012 09:47:33 +0000 (09:47 +0000)]
Clarify that there is an option other than OAuth for Phabricator and
offer up my email to the spam lords for it. Hopefully this will
eventually be more automatic, but we don't want people to think there is
only one option.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166870
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Hal Finkel [Sat, 27 Oct 2012 04:33:48 +0000 (04:33 +0000)]
Update BBVectorize to use the new VTTI instr. cost interfaces.
The monolithic interface for instruction costs has been split into
several functions. This is the corresponding change. No functionality
change is intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166865
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Nadav Rotem [Sat, 27 Oct 2012 04:11:32 +0000 (04:11 +0000)]
1. Fix a bug in getTypeConversion. When a *simple* type is split, we need to return the type of the split result.
2. Change the maximum vectorization width from 4 to 8.
3. A test for both.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166864
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Quentin Colombet [Sat, 27 Oct 2012 01:10:17 +0000 (01:10 +0000)]
[code size][ARM] Emit regular call instructions instead of the move, branch sequence
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166854
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Reed Kotler [Sat, 27 Oct 2012 00:57:14 +0000 (00:57 +0000)]
Implement MipsHi for mips16
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166852
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Akira Hatanaka [Sat, 27 Oct 2012 00:56:56 +0000 (00:56 +0000)]
[mips] Do not tail-call optimize vararg functions or functions with byval
arguments.
This is rather conservative and should be fixed later to be more aggressive.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166851
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Akira Hatanaka [Sat, 27 Oct 2012 00:44:39 +0000 (00:44 +0000)]
[mips] Make sure FuncArg doesn't advance when OrigArgIndex is the same as in the
previous iteration.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166850
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Akira Hatanaka [Sat, 27 Oct 2012 00:29:43 +0000 (00:29 +0000)]
Use the methods and classes that were added to simplify LowerCall and
LowerFormalArguments in MipsTargetLowering.
No functionality change intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166846
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Akira Hatanaka [Sat, 27 Oct 2012 00:21:13 +0000 (00:21 +0000)]
Add method MipsTargetLowering::writeVarArgRegs which copies argument registers
of vararg functions back to the stack.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166844
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Akira Hatanaka [Sat, 27 Oct 2012 00:16:36 +0000 (00:16 +0000)]
Add method MipsTargetLowering::passByValArg.
This method emits nodes for passing byval arguments in registers and stack.
This has the same functionality as existing functions PassByValArg64 and
WriteByValArg which will be deleted later.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166843
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Akira Hatanaka [Sat, 27 Oct 2012 00:10:18 +0000 (00:10 +0000)]
Add method MipsTargetLowering::copyByValRegs.
This method copies byval arguments passed in registers onto the stack and has
the same functionality as existing functions CopyMips64ByValRegs and
ReadByValArg which will be deleted later.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166841
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Akira Hatanaka [Fri, 26 Oct 2012 23:56:38 +0000 (23:56 +0000)]
Add class MipsCC which provides methods used to analyze formal and call
arguments and inquire about calling convention information.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166840
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Akira Hatanaka [Fri, 26 Oct 2012 23:49:51 +0000 (23:49 +0000)]
Delete MipsFunctionInfo::InArgFIRange.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166837
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Nadav Rotem [Fri, 26 Oct 2012 23:49:28 +0000 (23:49 +0000)]
Refactor the VectorTargetTransformInfo interface.
Add getCostXXX calls for different families of opcodes, such as casts, arithmetic, cmp, etc.
Port the LoopVectorizer to the new API.
The LoopVectorizer now finds instructions which will remain uniform after vectorization. It uses this information when calculating the cost of these instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166836
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Jakob Stoklund Olesen [Fri, 26 Oct 2012 23:39:46 +0000 (23:39 +0000)]
Revert r163298 "Optimize codegen for VSETLNi{8,16,32} operating on Q registers."
Keep the integer_insertelement test case, the new coalescer can handle
this kind of lane insertion without help from pseudo-instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166835
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Kaelyn Uhrain [Fri, 26 Oct 2012 23:28:41 +0000 (23:28 +0000)]
Avoid an unused-variable warning when asserts are disabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166834
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Jakob Stoklund Olesen [Fri, 26 Oct 2012 23:05:13 +0000 (23:05 +0000)]
Reduce indentation with early exit.
No functional change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166829
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Jakob Stoklund Olesen [Fri, 26 Oct 2012 23:05:10 +0000 (23:05 +0000)]
Also make the current basic block a class member.
Don't pass it around everywhere as a function argument.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166828
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Reed Kotler [Fri, 26 Oct 2012 22:57:32 +0000 (22:57 +0000)]
implement mips16 tls global addr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166827
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Lang Hames [Fri, 26 Oct 2012 22:14:10 +0000 (22:14 +0000)]
MCRegisterClass should be returned by const ref, not by value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166822
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Jordan Rose [Fri, 26 Oct 2012 22:08:46 +0000 (22:08 +0000)]
Suggest llvm_unreachable over assert(0).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166821
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Jakob Stoklund Olesen [Fri, 26 Oct 2012 22:06:00 +0000 (22:06 +0000)]
Make the Processed set a class member.
Don't pass it everywhere as an argument.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166820
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Chad Rosier [Fri, 26 Oct 2012 22:01:25 +0000 (22:01 +0000)]
[ms-inline asm] Add a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166819
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